{"id":43117,"date":"2025-06-30T19:31:12","date_gmt":"2025-06-30T10:31:12","guid":{"rendered":"https:\/\/jouhou.main.jp\/?p=43117"},"modified":"2026-02-09T17:40:42","modified_gmt":"2026-02-09T08:40:42","slug":"red-hat-enetunreach-101-%e5%af%be%e7%ad%96-network-is-unreachable-%e3%82%a8%e3%83%a9%e3%83%bc%e7%99%ba%e7%94%9f%e6%99%82%e3%81%ae%e3%83%ab%e3%83%bc%e3%83%86%e3%82%a3%e3%83%b3%e3%82%b0","status":"publish","type":"post","link":"https:\/\/jouhou.main.jp\/?p=43117","title":{"rendered":"Red\u00a0Hat ENETUNREACH (101) \u5bfe\u7b56: &#8220;Network is unreachable&#8221; \u30a8\u30e9\u30fc\u767a\u751f\u6642\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u518d\u8a2d\u5b9a\u3068\u63a5\u7d9a\u5bfe\u7b56\u7de8"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"43117\" class=\"elementor elementor-43117\" data-elementor-settings=\"[]\">\n\t\t\t\t\t\t\t<div class=\"elementor-section-wrap\">\n\t\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8ec5cc0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8ec5cc0\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-899468b\" data-id=\"899468b\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0c943eb elementor-widget elementor-widget-html\" data-id=\"0c943eb\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\r\n\r\n<section style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #e5e7eb; border-radius:3px; padding:16px; margin:0 0 18px 0; background:#ffffff;\"> <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; margin:0 0 10px 0;\"> <div style=\"overflow-wrap:anywhere; max-width:100%; display:inline-block; font-size:16px; letter-spacing:0.06em; color:#ffffff; background:#000000; border:1px solid #e5e7eb; border-radius:3px; padding:2px 8px; box-sizing:border-box;\">\u6700\u77ed\u30c1\u30a7\u30c3\u30af<\/div> <\/div> <h2 style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; margin:0 0 6px 0; font-size:20px; line-height:1.35;\">ENETUNREACH(101)\u306f\u300c\u7d4c\u8def\u304c\u7121\u3044\u300d\u30b5\u30a4\u30f3\u2015\u2015\u6700\u5c0f\u5909\u66f4\u3067\u5207\u308a\u5206\u3051\u3066\u3001\u63a5\u7d9a\u3092\u623b\u3059<\/h2> <p style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; margin:0 0 14px 0; font-size:14px; line-height:1.7;\">\u201c\u5916\u306b\u51fa\u3089\u308c\u306a\u3044\u201d\u306f\u3001DNS\u3084FW\u3067\u306f\u306a\u304f\u7d4c\u8def\u306e\u6b20\u843d\u30fb\u9078\u629e\u30df\u30b9\u304c\u539f\u56e0\u306e\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002\u7126\u3063\u3066\u5927\u304d\u304f\u89e6\u308b\u307b\u3069\u5f71\u97ff\u7bc4\u56f2\u304c\u5e83\u304c\u308b\u306e\u3067\u3001\u77ed\u6642\u9593\u3067\u4e89\u70b9\u3092\u7d5e\u3063\u3066\u3001\u5fc5\u8981\u6700\u5c0f\u9650\u306e\u5dee\u5206\u3067\u5fa9\u65e7\u3057\u307e\u3059\u3002<\/p> <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #e5e7eb; border-radius:3px; padding:12px; margin:0 0 12px 0; background:#fff7ed;\"> <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; margin:0 0 6px 0;\"> <span style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; display:inline-block; color:#ffffff; background:#dc2626; border-radius:3px; padding:2px 6px; font-weight:700; margin-right:8px;\">1<\/span> <strong style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; font-size:16px;\">30\u79d2\u3067\u4e89\u70b9\u3092\u7d5e\u308b<\/strong> <\/div> <p style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; margin:0 0 10px 0; font-size:13px; line-height:1.7;\">\u300c\u5b9b\u5148\u306b\u5bfe\u3057\u3066\u3001\u3069\u306eIF\u304b\u3089\u3001\u3069\u306e\u7d4c\u8def\u3067\u51fa\u308b\u60f3\u5b9a\u304b\u300d\u3092\u5148\u306b\u56fa\u5b9a\u3059\u308b\u3068\u8ff7\u3044\u304c\u6e1b\u308a\u307e\u3059\u3002\u5fa9\u65e7\u306f\u201c\u7d4c\u8def\u306e\u4e0d\u8db3\u201d\u3092\u6700\u77ed\u3067\u7279\u5b9a\u3057\u3066\u3001\u6700\u5c0f\u5909\u66f4\u306b\u5bc4\u305b\u307e\u3059\u3002<\/p> <ul style=\"max-width:100%; box-sizing:border-box; overflow:visible; margin:0 0 10px 18px; padding:0; font-size:13px; line-height:1.7;\"> <li style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u5230\u9054\u3067\u304d\u306a\u3044\u306e\u306f\u300c\u7279\u5b9a\u306e\u5b9b\u5148\u3060\u3051\u300d\u304b\u300c\u5916\u5411\u304d\u5168\u822c\u300d\u304b<\/li> <li style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">IF\u304cUP\u3067IP\u304c\u4ed8\u4e0e\u3055\u308c\u3066\u3044\u308b\u304b\uff08\u30ea\u30f3\u30af\/\u30a2\u30c9\u30ec\u30b9\/\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\uff09<\/li> <li style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u3068\u512a\u5148\u5ea6\uff08\u30e1\u30c8\u30ea\u30c3\u30af\uff09\u304c\u60f3\u5b9a\u3069\u304a\u308a\u304b<\/li> <li style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u9001\u4fe1\u5143IP\u304c\u5909\u308f\u3063\u3066\u3044\u306a\u3044\u304b\uff08SNAT\/\u8907\u6570NIC\/VRF\/\u540d\u524d\u7a7a\u9593\uff09<\/li> <\/ul> <pre style=\"white-space:pre-wrap; overflow-wrap:anywhere; word-break:break-word; max-width:100%; box-sizing:border-box; margin:0; padding:10px; border-radius:3px; background:#111827; color:#ffffff; font-size:12px; line-height:1.6;\"># \u78ba\u8a8d\u4f8b\uff08\u72b6\u6cc1\u628a\u63e1\u306b\u9650\u5b9a\uff09 ip -br link ip -br addr ip route show ip route get 1.1.1.1 nmcli -t dev status<\/pre> <\/div> <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #e5e7eb; border-radius:3px; padding:12px; margin:0 0 12px 0; background:#f0fdf4;\"> <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; margin:0 0 6px 0;\"> <span style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; display:inline-block; color:#ffffff; background:#16a34a; border-radius:3px; padding:2px 6px; font-weight:700; margin-right:8px;\">2<\/span> <strong style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; font-size:16px;\">\u4e89\u70b9\u5225\uff1a\u4eca\u5f8c\u306e\u9078\u629e\u3084\u884c\u52d5<\/strong> <\/div> <p style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; margin:0 0 10px 0; font-size:13px; line-height:1.7;\">\u540c\u3058ENETUNREACH\u3067\u3082\u3001\u539f\u56e0\u306e\u5c64\u304c\u9055\u3046\u3068\u201c\u52b9\u304f\u624b\u201d\u304c\u5909\u308f\u308a\u307e\u3059\u3002\u3044\u304d\u306a\u308a\u518d\u8d77\u52d5\u3084\u5168\u4f53\u53cd\u6620\u306b\u5bc4\u305b\u305a\u3001\u5dee\u5206\u304c\u5c0f\u3055\u3044\u9806\u306b\u78ba\u8a8d\u3057\u3066\u3044\u304f\u3068\u5b89\u5168\u3067\u3059\u3002<\/p>\r\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #e5e7eb; border-radius:3px; padding:10px; margin:0 0 10px 0; background:#ffffff;\">\r\n  <p style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; margin:0 0 6px 0; font-size:13px;\"><strong>\u30b1\u30fc\u30b9A\uff1a\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u4e0d\u5728\uff0f\u60f3\u5b9a\u5916\u306e\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4<\/strong><\/p>\r\n  <pre style=\"white-space:pre-wrap; overflow-wrap:anywhere; word-break:break-word; max-width:100%; box-sizing:border-box; margin:0; padding:10px; border-radius:3px; background:#000000; color:#ffffff; font-size:12px; line-height:1.6;\"># \u9078\u629e\u3068\u884c\u52d5\uff08\u78ba\u8a8d\u4f8b\uff09\r\nip route show\r\nip route show default\r\nip route get 1.1.1.1\r\nnmcli -g IP4.GATEWAY,IP4.ADDRESS dev show <IFNAME>\r\nnmcli -f NAME,UUID,DEVICE connection show<\/pre>\r\n<\/div>\r\n\r\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #e5e7eb; border-radius:3px; padding:10px; margin:0 0 10px 0; background:#ffffff;\">\r\n  <p style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; margin:0 0 6px 0; font-size:13px;\"><strong>\u30b1\u30fc\u30b9B\uff1aIF\u304cDOWN\uff0fIP\u672a\u4ed8\u4e0e\uff0fDHCP\u66f4\u65b0\u3067\u5d29\u308c\u305f<\/strong><\/p>\r\n  <pre style=\"white-space:pre-wrap; overflow-wrap:anywhere; word-break:break-word; max-width:100%; box-sizing:border-box; margin:0; padding:10px; border-radius:3px; background:#000000; color:#ffffff; font-size:12px; line-height:1.6;\"># \u9078\u629e\u3068\u884c\u52d5\uff08\u78ba\u8a8d\u4f8b\uff09\r\nip -br link\r\nip -br addr\r\nnmcli dev status\r\njournalctl -u NetworkManager -b --no-pager | tail -n 80\r\ncat \/etc\/resolv.conf<\/pre>\r\n<\/div>\r\n\r\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #e5e7eb; border-radius:3px; padding:10px; margin:0 0 10px 0; background:#ffffff;\">\r\n  <p style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; margin:0 0 6px 0; font-size:13px;\"><strong>\u30b1\u30fc\u30b9C\uff1aVRF\uff0f\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\uff0f\u8907\u6570NIC\u3067\u201c\u51fa\u3066\u3044\u304f\u7d4c\u8def\u201d\u304c\u9055\u3046<\/strong><\/p>\r\n  <pre style=\"white-space:pre-wrap; overflow-wrap:anywhere; word-break:break-word; max-width:100%; box-sizing:border-box; margin:0; padding:10px; border-radius:3px; background:#000000; color:#ffffff; font-size:12px; line-height:1.6;\"># \u9078\u629e\u3068\u884c\u52d5\uff08\u78ba\u8a8d\u4f8b\uff09\r\nip rule show\r\nip route show table main\r\nip route show table all\r\nip route get <DEST_IP> from <SRC_IP>\r\nip -d link show<\/pre>\r\n<\/div>\r\n\r\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #e5e7eb; border-radius:3px; padding:10px; margin:0; background:#ffffff;\">\r\n  <p style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; margin:0 0 6px 0; font-size:13px;\"><strong>\u30b1\u30fc\u30b9D\uff1a\u30b3\u30f3\u30c6\u30ca\uff0f\u540d\u524d\u7a7a\u9593\uff08\u30db\u30b9\u30c8\u306f\u6b63\u5e38\u3067\u3082\u4e2d\u304c\u51fa\u3089\u308c\u306a\u3044\uff09<\/strong><\/p>\r\n  <pre style=\"white-space:pre-wrap; overflow-wrap:anywhere; word-break:break-word; max-width:100%; box-sizing:border-box; margin:0; padding:10px; border-radius:3px; background:#000000; color:#ffffff; font-size:12px; line-height:1.6;\"># \u9078\u629e\u3068\u884c\u52d5\uff08\u78ba\u8a8d\u4f8b\uff09\r\nip netns list\r\nnsenter -t <pid> -n ip route\r\npodman network ls\r\nkubectl -n <ns> exec <pod> -- ip route<\/pre>\r\n<\/div>\r\n\r\n<\/div> <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #e5e7eb; border-radius:3px; padding:12px; margin:0 0 12px 0; background:#eff6ff;\"> <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; margin:0 0 6px 0;\"> <span style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; display:inline-block; color:#ffffff; background:#2563eb; border-radius:3px; padding:2px 6px; font-weight:700; margin-right:8px;\">3<\/span> <strong style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; font-size:16px;\">\u5f71\u97ff\u7bc4\u56f2\u30921\u5206\u3067\u78ba\u8a8d<\/strong> <\/div> <p style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; margin:0 0 10px 0; font-size:13px; line-height:1.7;\">\u201c\u76f4\u3059\u201d\u3088\u308a\u5148\u306b\u300c\u3069\u3053\u307e\u3067\u304c\u58ca\u308c\u3066\u3044\u308b\u304b\u300d\u3092\u62bc\u3055\u3048\u308b\u3068\u3001\u6700\u5c0f\u5909\u66f4\u306b\u3057\u3084\u3059\u304f\u3001\u8aac\u660e\u3082\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\uff08\u5f79\u54e1\u30fb\u4e0a\u53f8\u3078\u306e\u5831\u544a\u306b\u3082\u52b9\u304d\u307e\u3059\uff09\u3002<\/p> <ul style=\"max-width:100%; box-sizing:border-box; overflow:visible; margin:0 0 10px 18px; padding:0; font-size:13px; line-height:1.7;\"> <li style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u540c\u4e00\u30db\u30b9\u30c8\u5185\u3067\u3001\u5b9b\u5148\u30b5\u30d6\u30cd\u30c3\u30c8\u5225\u306b\u5dee\u304c\u3042\u308b\u304b\uff08\u793e\u5185\/\u793e\u5916\/\u7279\u5b9aVPC\u306a\u3069\uff09<\/li> <li style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u9001\u4fe1\u5143IP\u304c\u5909\u308f\u3063\u3066\u3044\u306a\u3044\u304b\uff08SNAT\/\u8907\u6570\u30a2\u30c9\u30ec\u30b9\/VRF\uff09<\/li> <li style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u201c\u4e00\u6642\u5fa9\u65e7\u201d\u304c\u672c\u756a\u63a5\u7d9a\u306b\u6ce2\u53ca\u3057\u306a\u3044\u304b\uff08\u7ba1\u7406NW\u30fb\u76e3\u8996\u30fb\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\uff09<\/li> <li style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u30ed\u30b0\u306b\u75d5\u8de1\u304c\u6b8b\u308b\u64cd\u4f5c\u7bc4\u56f2\u304c\u59a5\u5f53\u304b\uff08\u76e3\u67fb\u8981\u4ef6\u30fb\u904b\u7528\u624b\u9806\uff09<\/li> <\/ul> <pre style=\"white-space:pre-wrap; overflow-wrap:anywhere; word-break:break-word; max-width:100%; box-sizing:border-box; margin:0; padding:10px; border-radius:3px; background:#111827; color:#ffffff; font-size:12px; line-height:1.6;\"># \u78ba\u8a8d\u4f8b\uff08\u5f71\u97ff\u7bc4\u56f2\u306e\u628a\u63e1\uff09 ip route get &lt;DEST_IP&gt; ping -c 1 &lt;GATEWAY_IP&gt; ip -s link journalctl -b --no-pager | tail -n 120<\/pre> <\/div> <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #fed7aa; border-radius:3px; padding:12px; margin:0 0 12px 0; background:#ffedd5;\"> <p style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; margin:0 0 8px 0; font-size:15px; font-weight:700;\">\u5931\u6557\u3059\u308b\u3068\u3069\u3046\u306a\u308b\uff1f\uff08\u3084\u308a\u304c\u3061\u306a\u30df\u30b9\u3068\u8d77\u3053\u308a\u5f97\u308b\u7d50\u679c\uff09<\/p> <ul style=\"max-width:100%; box-sizing:border-box; overflow:visible; margin:0 0 0 18px; padding:0; font-size:13px; line-height:1.7;\"> <li style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u518d\u8d77\u52d5\u3067\u65e2\u5b58\u30bb\u30c3\u30b7\u30e7\u30f3\u304c\u5207\u308c\u3001\u5fa9\u65e7\u3088\u308a\u5f71\u97ff\u306e\u8aac\u660e\u304c\u91cd\u304f\u306a\u308b<\/li> <li style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u306e\u4e0a\u66f8\u304d\u3067\u7ba1\u7406\u7cfb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u307e\u3067\u5dfb\u304d\u8fbc\u307f\u3001\u9060\u9694\u5fa9\u65e7\u304c\u96e3\u3057\u304f\u306a\u308b<\/li> <li style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u30e1\u30c8\u30ea\u30c3\u30af\u3084\u30c6\u30fc\u30d6\u30eb\u306e\u6df7\u5728\u3092\u653e\u7f6e\u3057\u3066\u3001\u76f4\u3063\u305f\u3088\u3046\u306b\u898b\u3048\u3066\u518d\u767a\u3059\u308b<\/li> <li style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">FW\/SELinux\u5074\u306b\u98db\u3073\u706b\u3057\u3066\u8a2d\u5b9a\u304c\u6563\u3089\u304b\u308a\u3001\u76e3\u67fb\u30fb\u5f15\u304d\u7d99\u304e\u30b3\u30b9\u30c8\u304c\u5897\u3048\u308b<\/li> <\/ul> <\/div> <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; border:1px solid #e5e7eb; border-radius:3px; padding:12px; margin:0; background:#f8fafc;\"> <p style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; margin:0 0 8px 0; font-size:16px; font-weight:700;\">\u8ff7\u3063\u305f\u3089\uff1a\u7121\u6599\u3067\u76f8\u8ac7\u3067\u304d\u307e\u3059<\/p> <ul style=\"max-width:100%; box-sizing:border-box; overflow:visible; margin:0 0 10px 18px; padding:0; font-size:12px; line-height:1.7;\"> <li style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u539f\u56e0\u304c\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u304bDNS\u304b\u3001\u5207\u308a\u5206\u3051\u306b\u8ff7\u3063\u305f\u3089\u3002<\/li> <li style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">NetworkManager\u306e\u5909\u66f4\u304c\u672c\u756a\u306b\u6ce2\u53ca\u3057\u306a\u3044\u304b\u8ff7\u3063\u305f\u3089\u3002<\/li> <li style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">VRF\/\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c8\u306e\u6574\u5408\u304c\u53d6\u308c\u3066\u3044\u308b\u304b\u8a3a\u65ad\u304c\u3067\u304d\u306a\u3044\u3002<\/li> <li style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u30af\u30e9\u30a6\u30c9\u30eb\u30fc\u30c8\u3068OS\u5074\u306e\u7d4c\u8def\u306e\u512a\u5148\u95a2\u4fc2\u3067\u8ff7\u3063\u305f\u3089\u3002<\/li> <li style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u5fa9\u65e7\u3092\u6025\u3050\u307b\u3069\u3001\u6700\u5c0f\u5909\u66f4\u306e\u7dda\u5f15\u304d\u306b\u8ff7\u3063\u305f\u3089\u3002<\/li> <li style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u76e3\u67fb\u30ed\u30b0\u306b\u6b8b\u308b\u64cd\u4f5c\u7bc4\u56f2\u306e\u8a2d\u8a08\u304c\u3067\u304d\u306a\u3044\u3002<\/li> <li style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\">\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u3084\u30b3\u30f3\u30c6\u30ca\u3001\u672c\u756a\u30c7\u30fc\u30bf\u3001\u76e3\u67fb\u8981\u4ef6\u304c\u7d61\u307f\u3001\u6a29\u9650\u3092\u89e6\u308b\u524d\u306b\u8ff7\u3063\u305f\u3089\u3002<\/li> <\/ul> <p style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; margin:0 0 12px 0; font-size:13px; line-height:1.7;\">\u72b6\u6cc1\u6574\u7406\u3068\u539f\u56e0\u306e\u5f53\u305f\u308a\u3092\u65e9\u304f\u4ed8\u3051\u305f\u3044\u3068\u304d\u306f\u3001<strong>\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u3078\u7121\u6599\u76f8\u8ac7\u3082\u9078\u629e\u80a2\u3067\u3059\u3002<\/p> <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; display:flex; flex-wrap:wrap; gap:8px; margin:0 0 10px 0;\"> <a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\" style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; display:inline-block; text-decoration:none; background:#2563eb; color:#ffffff; border-radius:3px; padding:10px 12px; font-size:13px; line-height:1.2;\">\u7121\u6599\u76f8\u8ac7\u30d5\u30a9\u30fc\u30e0<\/a> <a href=\"tel:0120838831\" style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; display:inline-block; text-decoration:none; background:#1e3a8a; color:#ffffff; border-radius:3px; padding:10px 12px; font-size:13px; line-height:1.2;\">\u96fb\u8a71\u3067\u76f8\u8ac7\uff080120-838-831\uff09<\/a> <a href=\"tel:0434224240\" style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; display:inline-block; text-decoration:none; background:#0b1f4b; color:#ffffff; border-radius:3px; padding:10px 12px; font-size:13px; line-height:1.2;\">\u6280\u8853\u8005\u76f4\u901a\uff08043-422-4240\uff09<\/a> <\/div> <div style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; font-size:1.5em; font-weight:800; margin:0;\">\u8a73\u3057\u3044\u8aac\u660e\u3068\u5bfe\u7b56\u306f\u4ee5\u4e0b\u672c\u6587\u3078\u3002<\/div> <\/div> <\/section> <div style=\"margin:0; padding:30pt; background-color:#EEEEEE;\"> <p style=\"margin:0 0 8px 0; font-size:1.2em; overflow-wrap:anywhere; max-width:100%; box-sizing:border-box;\"><strong>\u3082\u304f\u3058<\/strong><\/p> <ul style=\"list-style-type:none; padding-left:0; margin:0; max-width:100%; box-sizing:border-box; overflow:visible;\"> <li style=\"margin:40px 0;\"><a href=\"#sec01\" style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; text-decoration:none;\">\u7b2c1\u7ae0\uff1a\u7a81\u7136\u306e\u201cNetwork is unreachable\u201d\u2015\u2015\u307e\u305a\u7591\u3046\u3079\u304d\u306f\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u5c64\u306e\u6b20\u843d<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec02\" style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; text-decoration:none;\">\u7b2c2\u7ae0\uff1aENETUNREACH(101)\u306e\u610f\u5473\u2015\u2015DNS\u3067\u3082FW\u3067\u3082\u306a\u304f\u300c\u5230\u9054\u7d4c\u8def\u304c\u7121\u3044\u300d\u30b5\u30a4\u30f3<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec03\" style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; text-decoration:none;\">\u7b2c3\u7ae0\uff1a30\u79d2\u3067\u4e89\u70b9\u3092\u7d5e\u308b\u2015\u2015\u5b9b\u5148\u30fb\u9001\u4fe1\u5143\u30fbIF\u30fb\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u3092\u540c\u6642\u306b\u898b\u308b<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec04\" style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; text-decoration:none;\">\u7b2c4\u7ae0\uff1a\u7d4c\u8def\u8868\u306e\u8aad\u307f\u65b9\u304c9\u5272\u2015\u2015ip route\/ip rule\u3067\u201c\u5b9f\u969b\u306b\u4f7f\u308f\u308c\u308b\u9053\u201d\u3092\u7279\u5b9a\u3059\u308b<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec05\" style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; text-decoration:none;\">\u7b2c5\u7ae0\uff1a\u3088\u304f\u3042\u308b\u5d29\u308c\u65b9\u2015\u2015\u30c7\u30d5\u30a9\u30eb\u30c8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u6d88\u5931\u30fb\u30e1\u30c8\u30ea\u30c3\u30af\u9006\u8ee2\u30fbDHCP\u66f4\u65b0\u306e\u7f60<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec06\" style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; text-decoration:none;\">\u7b2c6\u7ae0\uff1aRed Hat\u7279\u6709\u306e\u4ea4\u5dee\u70b9\u2015\u2015NetworkManager\/ifcfg\/connection\u306e\u30ba\u30ec\u304c\u8d77\u3053\u3059\u4e8b\u6545<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec07\" style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; text-decoration:none;\">\u7b2c7\u7ae0\uff1a\u8907\u96d1\u5316\u306e\u4f0f\u7dda\u2015\u2015VRF\u30fb\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3067\u300c\u898b\u3048\u308b\u7d4c\u8def\u300d\u3068\u300c\u51fa\u3066\u3044\u304f\u7d4c\u8def\u300d\u304c\u30ba\u30ec\u308b<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec08\" style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; text-decoration:none;\">\u7b2c8\u7ae0\uff1a\u30b3\u30f3\u30c6\u30ca\/\u4eee\u60f3\u5316\u3067\u52a0\u901f\u3059\u308b\u8aa4\u89e3\u2015\u2015\u540d\u524d\u7a7a\u9593\u30fbveth\u30fbCNI\u304c\u201c\u5225\u4e16\u754c\u306e\u7d4c\u8def\u8868\u201d\u3092\u4f5c\u308b<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec09\" style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; text-decoration:none;\">\u7b2c9\u7ae0\uff1a\u6700\u5c0f\u5909\u66f4\u3067\u5fa9\u65e7\u3059\u308b\u2015\u2015\u4e00\u6642\u30eb\u30fc\u30c8\u2192\u6c38\u7d9a\u5316\u2192\u758e\u901a\u78ba\u8a8d\u3092\u5b89\u5168\u306b\u7a4d\u307f\u4e0a\u3052\u308b<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec10\" style=\"overflow-wrap:anywhere; max-width:100%; box-sizing:border-box; text-decoration:none;\">\u7b2c10\u7ae0\uff1a\u518d\u767a\u9632\u6b62\u3068\u8aac\u660e\u8cac\u4efb\u2015\u2015\u76e3\u8996\u30fb\u5909\u66f4\u7ba1\u7406\u30fb\u76f8\u8ac7\u5c0e\u7dda\u3067\u201c\u6b21\u306f\u8a70\u307e\u3089\u306a\u3044\u201d\u72b6\u614b\u3078<\/a><\/li> <\/ul> <\/div> \r\n\r\n\r\n\r\n<p><strong>\u3010\u6ce8\u610f\u3011<\/strong> ENETUNREACH(101)\u306f\u300c\u5230\u9054\u7d4c\u8def\uff08\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\uff09\u304c\u6210\u7acb\u3057\u3066\u3044\u306a\u3044\u300d\u72b6\u614b\u3092\u793a\u3059\u3053\u3068\u304c\u591a\u304f\u3001\u95c7\u96f2\u306a\u518d\u8d77\u52d5\u3084\u8a2d\u5b9a\u5909\u66f4\u306f\u5f71\u97ff\u7bc4\u56f2\u3092\u5e83\u3052\u3066\u5fa9\u65e7\u3092\u9577\u5f15\u304b\u305b\u307e\u3059\u3002\u81ea\u5df1\u5224\u65ad\u3067\u201c\u4fee\u7406\u201d\u3084\u5fa9\u65e7\u4f5c\u696d\u3092\u9032\u3081\u305a\u3001\u672c\u756a\u30fb\u76e3\u67fb\u30fb\u5171\u6709\u57fa\u76e4\u30fb\u9867\u5ba2\u5f71\u97ff\u304c\u7d61\u3080\u5834\u5408\u306f<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u306e\u3088\u3046\u306a\u5c02\u9580\u4e8b\u696d\u8005\u306b\u76f8\u8ac7\u3059\u308b\u5224\u65ad\u304c\u3001\u7d50\u679c\u7684\u306b\u65e9\u3044\u6c88\u9759\u5316\u3068\u88ab\u5bb3\u6700\u5c0f\u5316\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p> \r\n\r\n <p>\u3000<\/p> <a id=\"sec01\"><\/a> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u7b2c1\u7ae0\uff1a\u5192\u982d30\u79d2\u306e\u521d\u52d5\u2015\u2015\u201c\u3084\u308b\u3079\u304d\u3053\u3068\u201d\u3092\u56fa\u5b9a\u3057\u3066\u3001\u73fe\u5834\u3092\u6c88\u9759\u5316\u3059\u308b<\/h2> <p>Red Hat\u74b0\u5883\u3067\u7a81\u7136\u300cNetwork is unreachable\u300d\u304c\u51fa\u308b\u3068\u3001\u73fe\u5834\u306f\u4e00\u6c17\u306b\u7a7a\u6c17\u304c\u5f35\u308a\u8a70\u3081\u307e\u3059\u3002\u7279\u306b\u30ec\u30ac\u30b7\u30fc\u306a\u65e2\u5b58\u30b7\u30b9\u30c6\u30e0\u307b\u3069\u3001\u6b62\u3081\u3089\u308c\u306a\u3044\u4e8b\u60c5\uff08\u591c\u9593\u30d0\u30c3\u30c1\u3001\u57fa\u5e79\u9023\u643a\u3001\u76e3\u8996\u30fb\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3001\u5bfe\u5916API\uff09\u304c\u8907\u96d1\u306b\u7d61\u307f\u307e\u3059\u3002\u3053\u3053\u3067\u91cd\u8981\u306a\u306e\u306f\u3001\u307e\u305a\u201c\u76f4\u3059\u624b\u201d\u3067\u306f\u306a\u304f\u201c\u72b6\u6cc1\u3092\u6c88\u9759\u5316\u3055\u305b\u308b\u9806\u756a\u201d\u3092\u56fa\u5b9a\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u3044\u304d\u306a\u308a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u3092\u518d\u8d77\u52d5\u3057\u305f\u308a\u3001FW\u3084DNS\u3078\u98db\u3073\u706b\u3055\u305b\u305f\u308a\u3059\u308b\u3068\u3001\u8aac\u660e\u8cac\u4efb\u3060\u3051\u304c\u5897\u3048\u3066\u3044\u304d\u307e\u3059\u3002<\/p> <p>ENETUNREACH(101)\u306f\u591a\u304f\u306e\u5834\u5408\u3001\u300c\u5b9b\u5148\u3078\u884c\u304f\u9053\u304c\u9078\u3079\u306a\u3044\uff0f\u9053\u304c\u5b58\u5728\u3057\u306a\u3044\u300d\u3053\u3068\u304c\u6838\u5fc3\u3067\u3059\u3002\u3060\u304b\u3089\u3053\u305d\u521d\u52d5\u3067\u306f\u3001\u3069\u306e\u5c64\u304c\u4e89\u70b9\u304b\uff08\u30eb\u30fc\u30c8\u6b20\u843d\u304b\u3001IF\u306e\u4e0d\u6574\u5408\u304b\u3001\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u304b\u3001\u540d\u524d\u7a7a\u9593\u304b\uff09\u3092\u77ed\u6642\u9593\u3067\u7d5e\u308a\u8fbc\u307f\u3001\u6700\u5c0f\u5909\u66f4\u3067\u30c0\u30e1\u30fc\u30b8\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3059\u308b\u65b9\u304c\u5b89\u5168\u3067\u3059\u3002<\/p> <hr> <p><strong>\u75c7\u72b6 \u2192 \u53d6\u308b\u3079\u304d\u884c\u52d5\uff08\u5b89\u5168\u306a\u521d\u52d5\u30ac\u30a4\u30c9\uff09<\/strong><\/p> <table style=\"border-collapse:collapse; width:100%; max-width:100%; box-sizing:border-box;\"> <tr> <th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u75c7\u72b6\uff08\u89b3\u6e2c\uff09<\/th> <th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u307e\u305a\u3084\u308b\u3053\u3068\uff08\u5b89\u5168\u512a\u5148\uff09<\/th> <th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u3084\u3089\u306a\u3044\u3053\u3068\uff08\u88ab\u5bb3\u62e1\u5927\u9632\u6b62\uff09<\/th> <\/tr> <tr> <td style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u7279\u5b9a\u306e\u5b9b\u5148\u3060\u3051\u5230\u9054\u3067\u304d\u306a\u3044<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u5b9b\u5148IP\u3092\u56fa\u5b9a\u3057\u3001<strong>ip route get<\/strong>\u3067\u7d4c\u8def\u9078\u629e\u3092\u78ba\u8a8d\u3002\u9001\u4fe1\u5143IP\u3082\u5408\u308f\u305b\u3066\u8a18\u9332\u3002<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u518d\u8d77\u52d5\u3001FW\u5168\u958b\u653e\u3001DNS\u8a2d\u5b9a\u306e\u5927\u5909\u66f4\u3002<\/td> <\/tr> <tr> <td style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u5916\u5411\u304d\u5168\u822c\u304c\u5230\u9054\u4e0d\u80fd\uff08\u758e\u901a\u304c\u201c\u5916\u201d\u306b\u51fa\u306a\u3044\uff09<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u3068\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u306e\u6709\u7121\u3092\u78ba\u8a8d\u3002IF\u304cUP\u304b\u3001IP\u304c\u4ed8\u4e0e\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u540c\u6642\u306b\u78ba\u8a8d\u3002<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u539f\u56e0\u672a\u78ba\u5b9a\u306e\u307e\u307e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u5927\u91cf\u306b\u8ffd\u52a0\u30fb\u524a\u9664\u3002<\/td> <\/tr> <tr> <td style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u30db\u30b9\u30c8\u306fOK\u3060\u304c\u30b3\u30f3\u30c6\u30ca\/Pod\u3060\u3051\u51fa\u3089\u308c\u306a\u3044<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u540d\u524d\u7a7a\u9593\u306e\u7d4c\u8def\u8868\u3092\u78ba\u8a8d\uff08\u30db\u30b9\u30c8\u306e\u7d4c\u8def\u3068\u5225\u7269\u3068\u3057\u3066\u6271\u3046\uff09\u3002CNI\/\u30d6\u30ea\u30c3\u30b8\/iptables\u306e\u95a2\u4fc2\u3092\u6574\u7406\u3002<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u30db\u30b9\u30c8\u5074\u306e\u30eb\u30fc\u30c8\u3092\u201c\u52d8\u201d\u3067\u5909\u66f4\u3057\u3066\u5dfb\u304d\u8fbc\u3080\u3002<\/td> <\/tr> <tr> <td style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u8907\u6570NIC\/VRF\/\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c8\u304c\u3042\u308b<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">ip rule \/ \u5404\u30c6\u30fc\u30d6\u30eb\u306eroute\u3092\u78ba\u8a8d\u3057\u3001\u201c\u3069\u306e\u6761\u4ef6\u3067\u3069\u306e\u8868\u304c\u4f7f\u308f\u308c\u308b\u304b\u201d\u3092\u8a18\u9332\u3057\u3066\u6574\u7406\u3002<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u904b\u7528\u624b\u9806\u306a\u3057\u3067\u30dd\u30ea\u30b7\u30fc\u3092\u7d71\u5408\u30fb\u524a\u9664\u3057\u3066\u8edf\u7740\u9678\u3092\u5d29\u3059\u3002<\/td> <\/tr> <\/table> <hr> <p><strong>30\u79d2\u3067\u53d6\u308b\u30ed\u30b0\uff08\u201c\u76f4\u3059\u524d\u201d\u306e\u4fdd\u5b58\uff09<\/strong><\/p> <p>\u307e\u305a\u306f\u73fe\u72b6\u306e\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8\u3092\u6b8b\u3057\u307e\u3059\u3002\u5f8c\u304b\u3089\u539f\u56e0\u304c\u898b\u3048\u305f\u3068\u304d\u3001\u8aac\u660e\u3068\u518d\u767a\u9632\u6b62\u306b\u4f7f\u3048\u308b\u6750\u6599\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306e\u76ee\u7684\u306f\u201c\u5909\u66f4\u201d\u3067\u306f\u306a\u304f\u201c\u628a\u63e1\u201d\u3067\u3059\u3002<\/p> <ul> <li><p>IF\u72b6\u614b\u3068\u30a2\u30c9\u30ec\u30b9\uff1a<strong>ip -br link<\/strong> \/ <strong>ip -br addr<\/strong><\/p><\/li> <li><p>\u7d4c\u8def\u8868\uff1a<strong>ip route show<\/strong> \/ <strong>ip rule show<\/strong><\/p><\/li> <li><p>\u5b9b\u5148\u3092\u56fa\u5b9a\u3057\u305f\u7d4c\u8def\u9078\u629e\uff1a<strong>ip route get &lt;\u5b9b\u5148IP&gt;<\/strong>\uff08\u9001\u4fe1\u5143\u3082\u5fc5\u8981\u306a\u3089\u6307\u5b9a\uff09<\/p><\/li> <li><p>NetworkManager\u72b6\u614b\uff1a<strong>nmcli dev status<\/strong> \/ <strong>nmcli connection show<\/strong><\/p><\/li> <li><p>\u76f4\u8fd1\u30ed\u30b0\uff1a<strong>journalctl -u NetworkManager -b<\/strong>\uff08\u672b\u5c3e\u4e2d\u5fc3\u3067\u5341\u5206\uff09<\/p><\/li> <\/ul> <p>\u3053\u306e\u6bb5\u968e\u3067\u300c\u5fa9\u65e7\u306e\u305f\u3081\u306b\u4e00\u6c17\u306b\u8a2d\u5b9a\u3092\u5909\u3048\u308b\u300d\u65b9\u5411\u3078\u884c\u304f\u3068\u3001\u624b\u623b\u308a\u304c\u5897\u3048\u3084\u3059\u3044\u3067\u3059\u3002\u307e\u305a\u5834\u3092\u6574\u3048\u3001\u4e89\u70b9\u3092\u56fa\u5b9a\u3057\u3001\u5f71\u97ff\u7bc4\u56f2\u3092\u898b\u7a4d\u3082\u3063\u3066\u304b\u3089\u201c\u6700\u5c0f\u5909\u66f4\u201d\u306b\u5165\u308b\u65b9\u304c\u3001\u7d50\u679c\u3068\u3057\u3066\u65e9\u3044\u53ce\u675f\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p> <hr> <p><strong>\u4f9d\u983c\u5224\u65ad\uff08\u4eca\u3059\u3050\u76f8\u8ac7\u306b\u5bc4\u305b\u305f\u65b9\u304c\u65e9\u3044\u6761\u4ef6\uff09<\/strong><\/p> <ul> <li><p>\u672c\u756a\u30fb\u76e3\u8996\u30fb\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30fb\u8a8d\u8a3c\u57fa\u76e4\u306a\u3069\u3001\u6b62\u3081\u3089\u308c\u306a\u3044\u91cd\u8981\u7d4c\u8def\u304c\u7d61\u3080\u3002<\/p><\/li> <li><p>\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u3001\u30b3\u30f3\u30c6\u30ca\u3001\u4eee\u60f3\u5316\u3001\u30af\u30e9\u30a6\u30c9\u7d4c\u8def\u3001\u76e3\u67fb\u8981\u4ef6\u304c\u7d61\u307f\u3001\u3069\u3053\u307e\u3067\u89e6\u3063\u3066\u3088\u3044\u304b\u7dda\u5f15\u304d\u304c\u96e3\u3057\u3044\u3002<\/p><\/li> <li><p>\u8907\u6570NIC\u3001VRF\u3001\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u3042\u308a\u3001\u7d4c\u8def\u306e\u201c\u898b\u305f\u76ee\u201d\u3068\u201c\u5b9f\u969b\u306e\u51fa\u53e3\u201d\u304c\u4e00\u81f4\u3057\u306a\u3044\u7591\u3044\u304c\u3042\u308b\u3002<\/p><\/li> <li><p>\u5909\u66f4\u306e\u5f71\u97ff\u304c\u8aad\u3081\u305a\u3001\u73fe\u5834\u30fb\u4e0a\u53f8\u30fb\u5f79\u54e1\u3078\u306e\u8aac\u660e\u304c\u5148\u306b\u5fc5\u8981\u306b\u306a\u3063\u3066\u3044\u308b\u3002<\/p><\/li> <\/ul> <p>\u500b\u5225\u6848\u4ef6\u3067\u306f\u3001\u5951\u7d04\u30fb\u76e3\u67fb\u30fb\u69cb\u6210\u30fb\u904b\u7528\u306e\u524d\u63d0\u304c\u7d61\u307f\u307e\u3059\u3002\u4e00\u822c\u8ad6\u3060\u3051\u3067\u201c\u3053\u306e\u64cd\u4f5c\u306a\u3089\u5b89\u5168\u201d\u3068\u8a00\u3044\u5207\u308c\u306a\u3044\u5834\u9762\u307b\u3069\u3001<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u3078\u306e\u76f8\u8ac7\u30fb\u4f9d\u983c\u3092\u691c\u8a0e\u3059\u308b\u65b9\u304c\u3001\u88ab\u5bb3\u6700\u5c0f\u5316\u3068\u8aac\u660e\u30b3\u30b9\u30c8\u524a\u6e1b\u306e\u4e21\u65b9\u306b\u52b9\u304d\u307e\u3059\u3002<\/p> <p>\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\uff1a<a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\">https:\/\/jouhou.main.jp\/?page_id=26983<\/a><\/p> <p>\u96fb\u8a71\uff1a<a href=\"tel:0120838831\">0120-838-831<\/a><\/p> \r\n\r\n <p>\u3000<\/p> <a id=\"sec02\"><\/a> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u7b2c2\u7ae0\uff1aENETUNREACH(101)\u306e\u610f\u5473\u2015\u2015DNS\u3067\u3082FW\u3067\u3082\u306a\u304f\u300c\u7d4c\u8def\u304c\u6210\u7acb\u3057\u306a\u3044\u300d\u5408\u56f3<\/h2> <p>ENETUNREACH(101)\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304b\u3089\u898b\u308b\u3068\u5358\u306a\u308b\u201c\u3064\u306a\u304c\u3089\u306a\u3044\u201d\u306b\u898b\u3048\u307e\u3059\u304c\u3001OS\u5185\u90e8\u3067\u306f\u6bd4\u8f03\u7684\u306f\u3063\u304d\u308a\u3057\u305f\u610f\u5473\u3092\u6301\u3061\u307e\u3059\u3002Linux\u30ab\u30fc\u30cd\u30eb\u304c\u5b9b\u5148\u3078\u9001\u308b\u3079\u304d\u30d1\u30b1\u30c3\u30c8\u306e\u7d4c\u8def\u3092\u6c7a\u3081\u3089\u308c\u306a\u3044\u3001\u307e\u305f\u306f\u9078\u629e\u3055\u308c\u305f\u7d4c\u8def\u304c\u6210\u7acb\u3057\u306a\u3044\u3068\u5224\u65ad\u3057\u305f\u3068\u304d\u306b\u8fd4\u308b\u4ee3\u8868\u7684\u306a\u30a8\u30e9\u30fc\u3067\u3059\u3002\u3064\u307e\u308a\u3001DNS\u304c\u540d\u524d\u89e3\u6c7a\u3067\u304d\u306a\u3044\u554f\u984c\uff08\u540d\u524d\u304c\u5f15\u3051\u306a\u3044\uff09\u3084\u3001FW\u304c\u62d2\u5426\u3057\u3066\u3044\u308b\u554f\u984c\uff08\u62d2\u5426\u30fb\u7834\u68c4\uff09\u3068\u3001\u4e89\u70b9\u304c\u7570\u306a\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p> <p>\u3053\u3053\u3092\u53d6\u308a\u9055\u3048\u308b\u3068\u3001\u300cDNS\u3092\u7591\u3063\u3066\u6642\u9593\u304c\u6eb6\u3051\u308b\u300d\u300cFW\u3092\u3044\u3058\u3063\u3066\u95a2\u4fc2\u306a\u3044\u7a74\u304c\u5897\u3048\u308b\u300d\u3068\u3044\u3063\u305f\u201c\u30ce\u30a4\u30ba\u30ab\u30c3\u30c8\u3067\u304d\u306a\u3044\u5bfe\u5fdc\u201d\u306b\u306a\u308a\u304c\u3061\u3067\u3059\u3002\u307e\u305a\u306f\u7d4c\u8def\u9078\u629e\uff08\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\uff09\u3092\u4e2d\u5fc3\u306b\u4e8b\u5b9f\u3092\u7a4d\u307f\u4e0a\u3052\u308b\u65b9\u304c\u3001\u73fe\u5834\u306e\u6e29\u5ea6\u3092\u4e0b\u3052\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p> <hr> <p><strong>\u3088\u304f\u6df7\u540c\u3055\u308c\u308b\u30a8\u30e9\u30fc\u3068\u306e\u9055\u3044\uff08\u5230\u9054\u4e0d\u80fd\u306e\u201c\u7a2e\u985e\u201d\u3092\u63c3\u3048\u308b\uff09<\/strong><\/p> <table style=\"border-collapse:collapse; width:100%; max-width:100%; box-sizing:border-box;\"> <tr> <th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u898b\u3048\u308b\u75c7\u72b6<\/th> <th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u4ee3\u8868\u7684\u306a\u539f\u56e0\u5c64<\/th> <th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u307e\u305a\u78ba\u8a8d\u3059\u308b\u4e8b\u5b9f<\/th> <\/tr> <tr> <td style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; vertical-align:top;\">ENETUNREACH \/ Network is unreachable<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u6b20\u843d\u3001\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c8\u4e0d\u6574\u5408\u3001IF\/\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u77db\u76fe\uff09<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">ip route \/ ip rule \/ ip route get \u306e\u7d50\u679c\u304c\u60f3\u5b9a\u3069\u304a\u308a\u304b<\/td> <\/tr> <tr> <td style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u540d\u524d\u89e3\u6c7a\u3067\u304d\u306a\u3044\uff08\u30db\u30b9\u30c8\u540d\u304c\u5f15\u3051\u306a\u3044\uff09<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">DNS\/\u540d\u524d\u89e3\u6c7a\uff08resolv.conf\u3001DNS\u5230\u9054\u6027\u3001\u691c\u7d22\u30c9\u30e1\u30a4\u30f3\uff09<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u5b9b\u5148\u3092IP\u3067\u8a66\u3059\u3068\u3069\u3046\u306a\u308b\u304b\u3001resolv.conf\u306e\u5185\u5bb9\u306f\u3069\u3046\u304b<\/td> <\/tr> <tr> <td style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\uff08\u5f85\u3063\u3066\u3082\u8fd4\u3089\u306a\u3044\uff09<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u7d4c\u8def\u9014\u4e2d\u306e\u906e\u65ad\u30fb\u7834\u68c4\u3001ACL\u3001\u7d4c\u8def\u975e\u5bfe\u79f0\u3001MTU\u554f\u984c\u306a\u3069<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u758e\u901a\u306e\u3069\u3053\u3067\u6b62\u307e\u308b\u304b\uff08\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u307e\u3067\u5c4a\u304f\u304b\u7b49\uff09<\/td> <\/tr> <tr> <td style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u62d2\u5426\uff08Connection refused \u7b49\uff09<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u30b5\u30fc\u30d3\u30b9\u672a\u5f85\u53d7\u3001\u30dd\u30fc\u30c8\u9589\u3001\u30a2\u30d7\u30ea\u5c64\u306e\u62d2\u5426<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u5230\u9054\u306f\u3057\u3066\u3044\u308b\u524d\u63d0\u3067\u3001\u5f85\u53d7\/\u30dd\u30fc\u30c8\/\u30d7\u30ed\u30bb\u30b9\u3092\u78ba\u8a8d<\/td> <\/tr> <\/table> <hr> <p><strong>\u201c\u7d4c\u8def\u304c\u7121\u3044\u201d\u304c\u8d77\u3053\u308b\u5178\u578b\u30d1\u30bf\u30fc\u30f3<\/strong><\/p> <p>ENETUNREACH\u306f\u3001\u5358\u306b\u300c\u30eb\u30fc\u30c8\u304c\u898b\u5f53\u305f\u3089\u306a\u3044\u300d\u3060\u3051\u3067\u306f\u306a\u304f\u3001\u9078\u629e\u30ed\u30b8\u30c3\u30af\u3092\u542b\u3081\u305f\u201c\u5b9f\u969b\u306b\u4f7f\u308f\u308c\u308b\u9053\u201d\u304c\u6210\u7acb\u3057\u306a\u3044\u3068\u304d\u306b\u8868\u9762\u5316\u3057\u307e\u3059\u3002Red Hat\u7cfb\u306e\u904b\u7528\u3067\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u5d29\u308c\u65b9\u304c\u591a\u304f\u898b\u3089\u308c\u307e\u3059\u3002<\/p> <ul> <li><p>\u30c7\u30d5\u30a9\u30eb\u30c8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u304c\u6d88\u3048\u3066\u3044\u308b\u3001\u307e\u305f\u306f\u5225IF\u306e\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u304c\u512a\u5148\u3055\u308c\u3066\u3057\u307e\u3046\uff08\u30e1\u30c8\u30ea\u30c3\u30af\u306e\u9006\u8ee2\u3092\u542b\u3080\uff09\u3002<\/p><\/li> <li><p>DHCP\u66f4\u65b0\u3084\u63a5\u7d9a\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u5909\u66f4\u3067\u3001IP\u306f\u6b8b\u3063\u3066\u3044\u308b\u306e\u306b\u7d4c\u8def\u3060\u3051\u304c\u671f\u5f85\u3068\u9055\u3046\u5f62\u306b\u7f6e\u304d\u63db\u308f\u308b\u3002<\/p><\/li> <li><p>ip rule\uff08\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\uff09\u3067\u5225\u30c6\u30fc\u30d6\u30eb\u304c\u9078\u3070\u308c\u3066\u3044\u308b\u304c\u3001\u305d\u306e\u30c6\u30fc\u30d6\u30eb\u306b\u5b9b\u5148\u3078\u306eroute\u304c\u7121\u3044\u3002<\/p><\/li> <li><p>VRF\u3084\u30b3\u30f3\u30c6\u30ca\u540d\u524d\u7a7a\u9593\u306e\u4e2d\u3067\u306f\u3001\u30db\u30b9\u30c8\u306e\u7d4c\u8def\u8868\u304c\u305d\u306e\u307e\u307e\u4f7f\u3048\u305a\u201c\u5225\u4e16\u754c\u201d\u306b\u306a\u3063\u3066\u3044\u308b\u3002<\/p><\/li> <\/ul> <p>\u3053\u306e\u6bb5\u968e\u3067\u91cd\u8981\u306a\u306e\u306f\u3001\u539f\u56e0\u3092\u65ad\u5b9a\u3059\u308b\u3053\u3068\u3067\u306f\u306a\u304f\u3001\u4e89\u70b9\u3092\u300c\u7d4c\u8def\u9078\u629e\u306e\u3069\u3053\u304c\u6210\u7acb\u3057\u3066\u3044\u306a\u3044\u304b\u300d\u306b\u5bc4\u305b\u308b\u3053\u3068\u3067\u3059\u3002\u305d\u3053\u304c\u63c3\u3046\u3068\u3001\u4ee5\u964d\u306e\u78ba\u8a8d\u304c\u201c\u7a74\u57cb\u3081\u201d\u3067\u306f\u306a\u304f\u201c\u4e00\u672c\u9053\u201d\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <hr> <p><strong>\u6700\u5c0f\u5909\u66f4\u3078\u3064\u306a\u3050\u89b3\u6e2c\uff08\u76f4\u3059\u524d\u306b\u201c\u51fa\u53e3\u201d\u3092\u78ba\u5b9a\u3059\u308b\uff09<\/strong><\/p> <p>\u5177\u4f53\u7684\u306b\u306f\u3001\u540c\u3058\u5b9b\u5148\u306b\u5bfe\u3057\u3066\u300c\u3069\u306eIF\u304b\u3089\u51fa\u308b\u306f\u305a\u304b\u300d\u300c\u9001\u4fe1\u5143IP\u306f\u4f55\u306b\u306a\u308b\u306f\u305a\u304b\u300d\u3092\u4e00\u5ea6\u56fa\u5b9a\u3057\u307e\u3059\u3002ip route get\u306f\u3001Linux\u304c\u3069\u306e\u7d4c\u8def\u3092\u9078\u3076\u304b\u306e\u624b\u639b\u304b\u308a\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u201c\u60f3\u5b9a\u5916\u306eIF\u201d\u3084\u201c\u60f3\u5b9a\u5916\u306e\u9001\u4fe1\u5143\u201d\u304c\u51fa\u3066\u304f\u308b\u5834\u5408\u3001\u554f\u984c\u306fDNS\u3084FW\u3067\u306f\u306a\u304f\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30fb\u512a\u5148\u5ea6\u30fb\u30dd\u30ea\u30b7\u30fc\u306e\u5074\u306b\u5bc4\u3063\u3066\u3044\u304d\u307e\u3059\u3002<\/p> <p>\u4e00\u65b9\u3067\u3001\u73fe\u5834\u306e\u5236\u7d04\u3068\u3057\u3066\u300c\u3044\u307e\u89e6\u308c\u308b\u306e\u306f\u6700\u5c0f\u9650\u300d\u300c\u5fa9\u65e7\u3092\u6025\u3050\u304c\u76e3\u67fb\u3082\u3042\u308b\u300d\u3068\u3044\u3063\u305f\u6761\u4ef6\u304c\u591a\u3044\u306f\u305a\u3067\u3059\u3002\u3053\u3053\u3067\u7121\u7406\u306b\u5927\u304d\u306a\u5909\u66f4\u3078\u8e0f\u307f\u8fbc\u307e\u305a\u3001\u6b21\u7ae0\u306e\u3088\u3046\u306b\u201c\u58ca\u3055\u305a\u63a1\u53d6\u2192\u5c0f\u3055\u304f\u623b\u3059\u201d\u306e\u9806\u3067\u9032\u3081\u308b\u3053\u3068\u304c\u3001\u8edf\u7740\u9678\u3057\u3084\u3059\u3044\u73fe\u5b9f\u7684\u306a\u9053\u306b\u306a\u308a\u307e\u3059\u3002<\/p> \r\n\r\n <p>\u3000<\/p> <a id=\"sec03\"><\/a> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u7b2c3\u7ae0\uff1a\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u518d\u8a2d\u5b9a\u306e\u524d\u306b\u2015\u2015\u73fe\u72b6\u63a1\u53d6\u3067\u201c\u624b\u623b\u308a\u201d\u306b\u6b6f\u6b62\u3081\u3092\u304b\u3051\u308b<\/h2> <p>ENETUNREACH\u306e\u5fa9\u65e7\u3067\u96e3\u3057\u3044\u306e\u306f\u3001\u539f\u56e0\u304c1\u3064\u3068\u306f\u9650\u3089\u306a\u3044\u70b9\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u300cDHCP\u66f4\u65b0\u3067\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u304c\u6d88\u3048\u305f\u300d\u3053\u3068\u306b\u52a0\u3048\u3001\u300c\u5225IF\u306e\u30e1\u30c8\u30ea\u30c3\u30af\u304c\u4f4e\u304f\u3066\u60f3\u5b9a\u5916\u306b\u512a\u5148\u3055\u308c\u3066\u3044\u308b\u300d\u300c\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c8\u304c\u53e4\u3044\u524d\u63d0\u306e\u307e\u307e\u6b8b\u3063\u3066\u3044\u308b\u300d\u3068\u3044\u3063\u305f\u8907\u5408\u4e8b\u6545\u304c\u3001\u904b\u7528\u304c\u9577\u3044\u74b0\u5883\u307b\u3069\u8d77\u3053\u308a\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u3060\u304b\u3089\u3053\u305d\u3001\u5fa9\u65e7\u306e\u901f\u5ea6\u3068\u54c1\u8cea\u3092\u4e21\u7acb\u3059\u308b\u306b\u306f\u3001\u6700\u521d\u306b\u201c\u63a1\u53d6\u306e\u578b\u201d\u3092\u6c7a\u3081\u3066\u304a\u304f\u3053\u3068\u304c\u52b9\u304d\u307e\u3059\u3002<\/p> <p>\u63a1\u53d6\u306e\u76ee\u7684\u306f\u3001\u3042\u3068\u3067\u539f\u56e0\u3092\u8aac\u660e\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u3068\u3001\u8aa4\u3063\u305f\u65b9\u5411\u3078\u8d70\u308a\u51fa\u3059\u30ea\u30b9\u30af\u3092\u6e1b\u3089\u3059\u3053\u3068\u3067\u3059\u3002\u73fe\u5834\u306e\u4f53\u611f\u3067\u306f\u300c\u76f4\u3057\u305f\u3044\u300d\u306e\u304c\u5148\u306b\u7acb\u3061\u307e\u3059\u304c\u3001\u77ed\u3044\u63a1\u53d6\u3067\u5834\u3092\u6574\u3048\u308b\u3068\u3001\u7d50\u679c\u3068\u3057\u3066\u53ce\u675f\u304c\u65e9\u304f\u306a\u308a\u307e\u3059\u3002<\/p> <hr> <p><strong>\u63a1\u53d6\u3059\u308b\u3079\u304d\u60c5\u5831\uff08Red Hat\u3067\u3088\u304f\u30ba\u30ec\u308b\u4ea4\u70b9\u3092\u62bc\u3055\u3048\u308b\uff09<\/strong><\/p> <p>Red Hat\u7cfb\u3067\u306f\u3001NetworkManager\u304c\u4e2d\u5fc3\u306b\u52d5\u3044\u3066\u3044\u308b\u74b0\u5883\u304c\u591a\u304f\u3001\u8a2d\u5b9a\u304c\u201c\u30d5\u30a1\u30a4\u30eb\u201d\u3068\u201c\u63a5\u7d9a\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u201d\u306e\u4e21\u9762\u306b\u5b58\u5728\u3057\u307e\u3059\u3002\u3053\u3053\u304c\u30ba\u30ec\u308b\u3068\u3001\u898b\u305f\u76ee\u306f\u6b63\u3057\u304f\u3066\u3082\u6b21\u306e\u518d\u8d77\u52d5\u3084\u518d\u63a5\u7d9a\u3067\u5143\u306b\u623b\u308a\u3001\u518d\u767a\u3057\u3084\u3059\u3044\u69cb\u9020\u306b\u306a\u308a\u307e\u3059\u3002\u63a1\u53d6\u3067\u306f\u3001\u305d\u306e\u30ba\u30ec\u3092\u898b\u3048\u308b\u5316\u3057\u307e\u3059\u3002<\/p> <ul> <li><p><strong>\u7d4c\u8def\u3068\u512a\u5148\u5ea6<\/strong>\uff1aip route show\uff08default\u306e\u6709\u7121\u3001metric\u3001\u8907\u6570default\u306e\u4f75\u5b58\uff09<\/p><\/li> <li><p><strong>\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0<\/strong>\uff1aip rule show\uff08\u3069\u306e\u6761\u4ef6\u3067\u3069\u306etable\u304c\u9078\u3070\u308c\u308b\u304b\uff09<\/p><\/li> <li><p><strong>\u7d4c\u8def\u9078\u629e\u306e\u5b9f\u7d50\u679c<\/strong>\uff1aip route get &lt;\u5b9b\u5148IP&gt;\uff08\u5fc5\u8981\u306a\u3089from\u3067\u9001\u4fe1\u5143\u3092\u56fa\u5b9a\uff09<\/p><\/li> <li><p><strong>NetworkManager\u306e\u72b6\u614b<\/strong>\uff1anmcli dev status \/ nmcli connection show\uff08\u3069\u306e\u63a5\u7d9a\u304c\u3069\u306eIF\u306b\u7d10\u3065\u304f\u304b\uff09<\/p><\/li> <li><p><strong>\u63a5\u7d9a\u3054\u3068\u306eIP\u8a2d\u5b9a<\/strong>\uff1anmcli -f ipv4.method,ipv4.addresses,ipv4.gateway,ipv4.routes,ipv4.route-metric connection show &lt;\u63a5\u7d9a\u540d&gt;<\/p><\/li> <li><p><strong>\u30ed\u30b0<\/strong>\uff1ajournalctl -u NetworkManager -b\uff08\u63a5\u7d9a\u5207\u66ff\u3001DHCP\u66f4\u65b0\u3001\u30eb\u30fc\u30c8\u9069\u7528\u306e\u75d5\u8de1\uff09<\/p><\/li> <\/ul> <p>\u3053\u306e\u63a1\u53d6\u304c\u63c3\u3046\u3068\u3001\u300c\u3069\u306e\u51fa\u53e3\uff08IF\uff09\u306b\u51fa\u3088\u3046\u3068\u3057\u3066\u5931\u6557\u3057\u3066\u3044\u308b\u304b\u300d\u300c\u3069\u306e\u30c6\u30fc\u30d6\u30eb\u3067route\u304c\u6b20\u3051\u3066\u3044\u308b\u304b\u300d\u304c\u8aac\u660e\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002\u9006\u306b\u3053\u306e\u6750\u6599\u304c\u306a\u3044\u307e\u307e\u5909\u66f4\u306b\u5165\u308b\u3068\u3001\u5fa9\u65e7\u3057\u3066\u3082\u201c\u4f55\u3092\u76f4\u3057\u305f\u304b\u5206\u304b\u3089\u306a\u3044\u201d\u72b6\u614b\u306b\u306a\u308a\u3001\u6b21\u306e\u969c\u5bb3\u3067\u540c\u3058\u8b70\u8ad6\u304c\u904e\u71b1\u3057\u307e\u3059\u3002<\/p> <hr> <p><strong>\u201c\u4e00\u6642\u5fa9\u65e7\u201d\u3068\u201c\u6c38\u7d9a\u5316\u201d\u3092\u5206\u3051\u3066\u8003\u3048\u308b\uff08\u8edf\u7740\u9678\u306e\u8a2d\u8a08\uff09<\/strong><\/p> <p>\u73fe\u5834\u3067\u306f\u300c\u4eca\u3059\u3050\u901a\u4fe1\u3092\u623b\u3059\u300d\u8981\u8acb\u304c\u5f37\u3044\u4e00\u65b9\u3067\u3001\u6c38\u7d9a\u8a2d\u5b9a\u306e\u5909\u66f4\u306b\u306f\u76e3\u67fb\u3084\u627f\u8a8d\u304c\u5fc5\u8981\u306a\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u5927\u5207\u306a\u306e\u306f\u3001\u4e00\u6642\u7684\u306b\u6210\u7acb\u3055\u305b\u308b\u624b\u6bb5\u3068\u3001\u6052\u4e45\u7684\u306b\u4fdd\u3064\u624b\u6bb5\u3092\u6df7\u305c\u306a\u3044\u3053\u3068\u3067\u3059\u3002\u6df7\u305c\u308b\u3068\u3001\u3044\u3063\u305f\u3093\u623b\u3063\u305f\u5f8c\u306b\u518d\u8d77\u52d5\u3084\u518d\u63a5\u7d9a\u3067\u5143\u306b\u623b\u308a\u3001\u518d\u767a\u3068\u3057\u3066\u6271\u308f\u308c\u307e\u3059\u3002<\/p> <p>\u305f\u3068\u3048\u3070\u3001\u30ab\u30fc\u30cd\u30eb\u306e\u7d4c\u8def\u8868\u306b\u8ffd\u52a0\u3057\u305f\u30eb\u30fc\u30c8\u306f\u5373\u6642\u306b\u52b9\u304d\u307e\u3059\u304c\u3001\u63a5\u7d9a\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u306b\u53cd\u6620\u3057\u306a\u3044\u9650\u308a\u201c\u518d\u73fe\u6027\u306e\u3042\u308b\u5fa9\u65e7\u201d\u306b\u306f\u306a\u308a\u307e\u305b\u3093\u3002\u4e00\u65b9\u3067\u3001\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u5909\u66f4\u306f\u5c06\u6765\u306e\u5b89\u5b9a\u306b\u52b9\u304d\u307e\u3059\u304c\u3001\u9069\u7528\u306e\u77ac\u9593\u306b\u5f71\u97ff\u304c\u51fa\u308b\u53ef\u80fd\u6027\u3082\u3042\u308a\u307e\u3059\u3002\u3060\u304b\u3089\u3053\u305d\u3001\u63a1\u53d6\u306b\u57fa\u3065\u3044\u3066\u300c\u3044\u307e\u5fc5\u8981\u306a\u6700\u5c0f\u306e\u4e00\u6642\u63aa\u7f6e\u300d\u3068\u300c\u627f\u8a8d\u5f8c\u306b\u884c\u3046\u6c38\u7d9a\u5316\u300d\u3092\u5207\u308a\u5206\u3051\u308b\u3053\u3068\u304c\u3001\u30c0\u30e1\u30fc\u30b8\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3068\u3057\u3066\u5408\u7406\u7684\u3067\u3059\u3002<\/p> <hr> <p><strong>\u5224\u65ad\u304c\u96e3\u3057\u3044\u3068\u304d\u306e\u8003\u3048\u65b9\uff08\u4e00\u822c\u8ad6\u306e\u9650\u754c\u3092\u5148\u306b\u8a8d\u3081\u308b\uff09<\/strong><\/p> <p>\u3053\u3053\u307e\u3067\u306e\u8a71\u306f\u201c\u578b\u201d\u3068\u3057\u3066\u6709\u52b9\u3067\u3059\u304c\u3001\u500b\u5225\u306e\u6848\u4ef6\u3067\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u69cb\u6210\uff08\u30aa\u30f3\u30d7\u30ec\/\u30af\u30e9\u30a6\u30c9\/\u62e0\u70b9\u9593VPN\uff09\u3001\u904b\u7528\uff08\u5197\u9577\u5316\u3001\u76e3\u8996\u3001\u5909\u66f4\u7ba1\u7406\uff09\u3001\u5951\u7d04\uff08SLA\u3001\u76e3\u67fb\uff09\u306b\u3088\u3063\u3066\u3001\u89e6\u3063\u3066\u3088\u3044\u7bc4\u56f2\u3068\u9806\u756a\u304c\u5909\u308f\u308a\u307e\u3059\u3002\u4e00\u822c\u8ad6\u3060\u3051\u3067\u9032\u3081\u308b\u307b\u3069\u3001\u5f8c\u304b\u3089\u300c\u305d\u306e\u5909\u66f4\u306f\u8ab0\u304c\u627f\u8a8d\u3057\u305f\u306e\u304b\u300d\u300c\u5f71\u97ff\u7bc4\u56f2\u306f\u3069\u3053\u307e\u3067\u304b\u300d\u3068\u3044\u3046\u793e\u5185\u8abf\u6574\u304c\u91cd\u304f\u306a\u308a\u304c\u3061\u3067\u3059\u3002<\/p> <p>\u8ff7\u3044\u304c\u3042\u308b\u6bb5\u968e\u3067\u76f8\u8ac7\u3067\u304d\u308b\u3068\u3001\u5834\u3092\u6574\u3048\u3001\u53ce\u675f\u306b\u5411\u304b\u3046\u9053\u7b4b\u3092\u77ed\u304f\u3067\u304d\u307e\u3059\u3002\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u3001\u30b3\u30f3\u30c6\u30ca\u3001\u672c\u756a\u30c7\u30fc\u30bf\u3001\u76e3\u67fb\u8981\u4ef6\u304c\u7d61\u3080\u5834\u5408\u306f\u3001\u7121\u7406\u306b\u6a29\u9650\u3084\u8a2d\u5b9a\u3092\u89e6\u308b\u524d\u306b<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u306e\u3088\u3046\u306a\u5c02\u9580\u5bb6\u3078\u76f8\u8ac7\u3059\u308b\u3068\u3001\u65e9\u304f\u53ce\u675f\u3057\u3084\u3059\u3044\u3067\u3059\u3002<\/p> <p>\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\uff1a<a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\">https:\/\/jouhou.main.jp\/?page_id=26983<\/a><\/p> <p>\u96fb\u8a71\uff1a<a href=\"tel:0120838831\">0120-838-831<\/a><\/p> \r\n\r\n\r\n\r\n<p>\u3000<\/p> <a id=\"sec04\"><\/a> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u7b2c4\u7ae0\uff1a\u7d4c\u8def\u8868\u306e\u8aad\u307f\u65b9\u304c9\u5272\u2015\u2015ip route\/ip rule\u3067\u201c\u5b9f\u969b\u306b\u4f7f\u308f\u308c\u308b\u9053\u201d\u3092\u7279\u5b9a\u3059\u308b<\/h2> <p>ENETUNREACH(101)\u306e\u5207\u308a\u5206\u3051\u306f\u3001\u300c\u7d4c\u8def\u8868\u3092\u898b\u305f\u300d\u3060\u3051\u3067\u306f\u7d42\u308f\u308a\u307e\u305b\u3093\u3002\u73fe\u5834\u3067\u30cf\u30de\u308a\u3084\u3059\u3044\u306e\u306f\u3001\u7d4c\u8def\u8868\u305d\u306e\u3082\u306e\u306f\u201c\u305d\u308c\u3063\u307d\u304f\u201d\u898b\u3048\u308b\u306e\u306b\u3001\u5b9f\u969b\u306e\u9001\u4fe1\u3067\u306f\u5225\u306e\u51fa\u53e3\u304c\u9078\u3070\u308c\u3066\u3057\u307e\u3044\u3001\u7d50\u679c\u3068\u3057\u3066\u5230\u9054\u7d4c\u8def\u304c\u6210\u7acb\u3057\u306a\u3044\u30b1\u30fc\u30b9\u3067\u3059\u3002\u3053\u3053\u3067\u5fc5\u8981\u306a\u306e\u306f\u3001\u898b\u305f\u76ee\u306e\u4e00\u89a7\u3067\u306f\u306a\u304f\u3001OS\u304c\u201c\u3069\u306e\u9053\u3092\u63a1\u7528\u3059\u308b\u304b\u201d\u3068\u3044\u3046\u9078\u629e\u7d50\u679c\u306b\u5bc4\u305b\u3066\u4e8b\u5b9f\u3092\u7a4d\u307f\u4e0a\u3052\u308b\u3053\u3068\u3067\u3059\u3002\u5834\u3092\u6574\u3048\u3001\u8b70\u8ad6\u304c\u904e\u71b1\u3057\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u306b\u306f\u3001<strong>\u300c\u3053\u306e\u5b9b\u5148\u306b\u306f\u3001\u3053\u306eIF\u3001\u3053\u306e\u9001\u4fe1\u5143\u3001\u3053\u306e\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u300d<\/strong>\u3092\u8a00\u8a9e\u5316\u3067\u304d\u308b\u72b6\u614b\u304c\u8fd1\u9053\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <hr> <h3>ip route\u306e\u57fa\u672c\uff1a\u307e\u305a\u300c\u6700\u9577\u4e00\u81f4\u300d\u3068\u300c\u30c7\u30d5\u30a9\u30eb\u30c8\u300d\u3092\u540c\u3058\u8996\u70b9\u3067\u898b\u308b<\/h3> <p>Linux\u306e\u7d4c\u8def\u9078\u629e\u306f\u539f\u5247\u3068\u3057\u3066\u3001\u5b9b\u5148\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u306e\u6700\u9577\u4e00\u81f4\uff08\u3088\u308a\u5177\u4f53\u7684\u306a\u7d4c\u8def\u304c\u512a\u5148\uff09\u306b\u5bc4\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u304c\u3042\u3063\u3066\u3082\u3001\u7279\u5b9a\u30b5\u30d6\u30cd\u30c3\u30c8\u5411\u3051\u306e\u9759\u7684\u30eb\u30fc\u30c8\u304c\u5b58\u5728\u3059\u308c\u3070\u3001\u305d\u308c\u304c\u512a\u5148\u3055\u308c\u307e\u3059\u3002\u3053\u3053\u304c\u7406\u89e3\u3067\u304d\u308b\u3068\u3001\u300c\u30c7\u30d5\u30a9\u30eb\u30c8\u306f\u3042\u308b\u306e\u306b\u7279\u5b9a\u5b9b\u5148\u3060\u3051ENETUNREACH\u300d\u3068\u3044\u3046\u73fe\u8c61\u304c\u81ea\u7136\u306b\u8aac\u660e\u3067\u304d\u307e\u3059\u3002<\/p> <p>ip route show\u306e\u51fa\u529b\u306f\u77ed\u3044\u3067\u3059\u304c\u3001\u904b\u7528\u4e0a\u306f\u8aad\u307f\u53d6\u308b\u3079\u304d\u30dd\u30a4\u30f3\u30c8\u304c\u6c7a\u307e\u3063\u3066\u3044\u307e\u3059\u3002<\/p> <table style=\"border-collapse:collapse; width:100%; max-width:100%; box-sizing:border-box;\"> <tr> <th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u9805\u76ee<\/th> <th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u4f8b<\/th> <th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u8aad\u307f\u3069\u3053\u308d<\/th> <\/tr> <tr> <td style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; vertical-align:top;\">default via<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">default via 192.0.2.1 dev eth0 metric 100<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u5916\u5411\u304d\u5168\u822c\u306e\u201c\u6700\u5f8c\u306e\u9053\u201d\u3002\u8907\u6570\u3042\u308b\u5834\u5408\u306fmetric\u306e\u512a\u5148\u304c\u4e89\u70b9\u306b\u306a\u308a\u3084\u3059\u3044\u3002<\/td> <\/tr> <tr> <td style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u5b9b\u5148\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">10.10.0.0\/16 dev eth1<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u7279\u5b9a\u5b9b\u5148\u3060\u3051\u5230\u9054\u4e0d\u80fd\u306e\u3068\u304d\u3001\u3053\u3053\u306b\u6b20\u843d\u3084\u8aa4\u308a\u304c\u3042\u308b\u3053\u3068\u304c\u591a\u3044\u3002<\/td> <\/tr> <tr> <td style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; vertical-align:top;\">dev<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">dev eth0<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u51fa\u53e3IF\u3002\u60f3\u5b9a\u5916\u306eIF\u304c\u9078\u3070\u308c\u308b\u3068\u3001\u9001\u4fe1\u5143IP\u3084\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3082\u30ba\u30ec\u3084\u3059\u3044\u3002<\/td> <\/tr> <tr> <td style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; vertical-align:top;\">proto<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">proto dhcp \/ proto static<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u3069\u3053\u304b\u3089\u5165\u3063\u305f\u7d4c\u8def\u304b\u306e\u624b\u639b\u304b\u308a\u3002DHCP\u7531\u6765\u306f\u66f4\u65b0\u30fb\u5207\u66ff\u3067\u5d29\u308c\u3084\u3059\u3044\u3002<\/td> <\/tr> <tr> <td style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; vertical-align:top;\">metric<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">metric 100<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u540c\u3058\u5b9b\u5148\u7bc4\u56f2\u306e\u5019\u88dc\u304c\u8907\u6570\u3042\u308b\u3068\u304d\u306e\u512a\u5148\u5ea6\u3002\u9006\u8ee2\u304c\u201c\u7a81\u7136\u201d\u3092\u4f5c\u308b\u3002<\/td> <\/tr> <tr> <td style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; vertical-align:top;\">src<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">src 192.0.2.10<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u9001\u4fe1\u5143IP\u306e\u5019\u88dc\u3002\u9001\u4fe1\u5143\u304c\u5909\u308f\u308b\u3068\u623b\u308a\u7d4c\u8def\u3084ACL\u3067\u4e0d\u6574\u5408\u304c\u51fa\u3084\u3059\u3044\u3002<\/td> <\/tr> <\/table> <hr> <h3>ip route get\u304c\u201c\u7b54\u3048\u5408\u308f\u305b\u201d\u306b\u306a\u308b\uff1a\u4e00\u89a7\u3088\u308a\u9078\u629e\u7d50\u679c\u3092\u512a\u5148\u3059\u308b<\/h3> <p>\u7d4c\u8def\u8868\u3092\u773a\u3081\u308b\u3060\u3051\u3067\u306f\u3001\u300c\u5b9f\u969b\u306b\u3069\u308c\u304c\u9078\u3070\u308c\u308b\u304b\u300d\u304c\u66d6\u6627\u306b\u6b8b\u308a\u307e\u3059\u3002ip route get\u306f\u3001\u7279\u5b9a\u5b9b\u5148\u306b\u5bfe\u3057\u3066OS\u304c\u3069\u3046\u5224\u65ad\u3059\u308b\u304b\u3092\u4e00\u884c\u3067\u793a\u3057\u3001\u8b70\u8ad6\u306e\u6e29\u5ea6\u3092\u4e0b\u3052\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u3068\u304f\u306b\u8907\u6570NIC\u3001\u8907\u6570\u30c7\u30d5\u30a9\u30eb\u30c8\u3001\u9759\u7684\u30eb\u30fc\u30c8\u3068DHCP\u30eb\u30fc\u30c8\u306e\u6df7\u5728\u304c\u3042\u308b\u74b0\u5883\u3067\u306f\u3001\u4e00\u89a7\u3088\u308a\u3082\u5148\u306b\u201c\u9078\u629e\u7d50\u679c\u201d\u3092\u78ba\u5b9a\u3055\u305b\u305f\u65b9\u304c\u3001\u6c88\u9759\u5316\u3057\u3084\u3059\u3044\u3067\u3059\u3002<\/p> <pre style=\"white-space:pre-wrap; word-break:break-word; border:1px solid #cccccc; padding:10px; max-width:100%; box-sizing:border-box;\">ip route get &lt;\u5b9b\u5148IP&gt; ip route get &lt;\u5b9b\u5148IP&gt; from &lt;\u9001\u4fe1\u5143IP&gt;<\/pre> <p>\u3053\u3053\u3067\u6ce8\u76ee\u3059\u308b\u306e\u306f\u3001<strong>via\uff08\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\uff09<\/strong>\u3001<strong>dev\uff08\u51fa\u53e3IF\uff09<\/strong>\u3001\u305d\u3057\u3066\u5fc5\u8981\u306b\u5fdc\u3058\u3066<strong>src\uff08\u9001\u4fe1\u5143\uff09<\/strong>\u3067\u3059\u3002ENETUNREACH\u304c\u51fa\u3066\u3044\u308b\u5834\u5408\u3001route get\u306e\u6642\u70b9\u3067\u300c\u5230\u9054\u3067\u304d\u308b\u7d4c\u8def\u304c\u9078\u3079\u306a\u3044\u300d\u72b6\u614b\u304c\u898b\u3048\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u9006\u306b\u3001route get\u3067\u201c\u9053\u201d\u304c\u793a\u3055\u308c\u308b\u306e\u306b\u5230\u9054\u3067\u304d\u306a\u3044\u5834\u5408\u306f\u3001\u7d4c\u8def\u9014\u4e2d\u306e\u906e\u65ad\u3084\u975e\u5bfe\u79f0\u3001\u540d\u524d\u7a7a\u9593\u5074\u3001\u3042\u308b\u3044\u306f\u5225\u30ec\u30a4\u30e4\u30fc\u306b\u4e89\u70b9\u304c\u79fb\u3063\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u51fa\u3066\u304d\u307e\u3059\u3002<\/p> <hr> <h3>ip rule\uff08\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\uff09\uff1a\u898b\u3048\u308b\u7d4c\u8def\u3068\u5b9f\u969b\u306e\u51fa\u53e3\u304c\u30ba\u30ec\u308b\u4f0f\u7dda<\/h3> <p>ip rule\u306f\u300c\u3069\u306e\u6761\u4ef6\u3067\u3001\u3069\u306e\u7d4c\u8def\u8868\u3092\u53c2\u7167\u3059\u308b\u304b\u300d\u3092\u6c7a\u3081\u307e\u3059\u3002\u8907\u6570\u306e\u904b\u7528\u8981\u4ef6\uff08\u7ba1\u7406\u7cfb\u3068\u696d\u52d9\u7cfb\u3001\u62e0\u70b9\u9593VPN\u3001\u7279\u5b9a\u901a\u4fe1\u3060\u3051\u5225\u56de\u7dda\u3001\u76e3\u67fb\u8981\u4ef6\u3067\u9001\u4fe1\u5143\u56fa\u5b9a\u306a\u3069\uff09\u304c\u7a4d\u307f\u91cd\u306a\u308b\u3068\u3001ip rule\u304c\u8ffd\u52a0\u3055\u308c\u3001\u30c6\u30fc\u30d6\u30eb\u304c\u5897\u3048\u307e\u3059\u3002\u3059\u308b\u3068\u3001main\u30c6\u30fc\u30d6\u30eb\u306b\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u304c\u3042\u3063\u3066\u3082\u3001\u5b9f\u969b\u306b\u306f\u5225\u30c6\u30fc\u30d6\u30eb\u304c\u9078\u3070\u308c\u3066\u3044\u3066\u3001\u305d\u306e\u30c6\u30fc\u30d6\u30eb\u306b\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u304c\u7121\u3044\u3001\u3068\u3044\u3046\u5f62\u3067ENETUNREACH\u304c\u8868\u9762\u5316\u3057\u307e\u3059\u3002<\/p> <pre style=\"white-space:pre-wrap; word-break:break-word; border:1px solid #cccccc; padding:10px; max-width:100%; box-sizing:border-box;\">ip rule show ip route show table main ip route show table all<\/pre> <p>ip rule\u306e\u51fa\u529b\u306f\u4e0a\u304b\u3089\u9806\u306b\u512a\u5148\u5ea6\uff08priority\uff09\u3067\u51e6\u7406\u3055\u308c\u307e\u3059\u3002\u3053\u3053\u3067\u91cd\u8981\u306a\u306e\u306f\u3001<strong>\u300c\u3069\u306erule\u304c\u5f53\u305f\u3063\u3066\u3044\u308b\u304b\u300d<\/strong>\u3092\u5b9b\u5148\u30fb\u9001\u4fe1\u5143\u3068\u30bb\u30c3\u30c8\u3067\u60f3\u50cf\u3067\u306f\u306a\u304f\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u9001\u4fe1\u5143\u3092\u56fa\u5b9a\u3057\u305froute get\u3092\u4f75\u7528\u3059\u308b\u3068\u3001\u300c\u3053\u306e\u901a\u4fe1\u306f\u3053\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u898b\u306b\u884c\u3063\u3066\u3044\u308b\u300d\u3068\u3044\u3046\u7b4b\u9053\u304c\u4f5c\u308c\u307e\u3059\u3002\u7b4b\u9053\u304c\u7acb\u3064\u3068\u3001\u5fa9\u65e7\u306f\u201c\u5834\u5f53\u305f\u308a\u7684\u306a\u8ffd\u52a0\u201d\u3067\u306f\u306a\u304f\u3001\u201c\u6b20\u3051\u3066\u3044\u308b\u7d4c\u8def\u306e\u7a74\u57cb\u3081\u201d\u3068\u3057\u3066\u6574\u7406\u3067\u304d\u307e\u3059\u3002<\/p> <hr> <h3>\u6700\u5c0f\u5909\u66f4\u306b\u3064\u306a\u3050\u307e\u3068\u3081\uff1a\u307e\u305a\u201c\u73fe\u72b6\u306e\u51fa\u53e3\u201d\u3092\u4e00\u610f\u306b\u3059\u308b<\/h3> <p>\u7b2c4\u7ae0\u306e\u7d50\u8ad6\u306f\u30b7\u30f3\u30d7\u30eb\u3067\u3001\u7d4c\u8def\u8868\u306e\u4e00\u89a7\u3088\u308a\u5148\u306b\u3001<strong>\u300c\u3053\u306e\u5b9b\u5148\u3078\u306e\u51fa\u53e3\u300d<\/strong>\u3092ip route get\u3067\u4e00\u610f\u306b\u3057\u3066\u304b\u3089\u3001\u6b20\u843d\u30fb\u9006\u8ee2\u30fb\u6df7\u5728\u3092\u7591\u3046\u306e\u304c\u52b9\u7387\u7684\u3067\u3059\u3002\u3053\u308c\u3092\u3084\u308b\u3068\u3001\u300cFW\u3092\u89e6\u3063\u305f\u300d\u300cDNS\u3092\u89e6\u3063\u305f\u300d\u3068\u3044\u3046\u8b70\u8ad6\u306e\u30ce\u30a4\u30ba\u304c\u6e1b\u308a\u3001\u5fc5\u8981\u6700\u5c0f\u9650\u306e\u4fee\u6b63\u3067\u8edf\u7740\u9678\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p> <p>\u305f\u3060\u3057\u3001\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3084\u8907\u6570NIC\u304c\u7d61\u3080\u74b0\u5883\u3067\u306f\u3001\u4e00\u822c\u8ad6\u3060\u3051\u3067\u5b89\u5168\u306a\u5909\u66f4\u5e45\u3092\u8a00\u3044\u5207\u308c\u307e\u305b\u3093\u3002\u5951\u7d04\u30fb\u76e3\u67fb\u30fb\u672c\u756a\u5f71\u97ff\u306e\u6761\u4ef6\u304c\u7d61\u3080\u5834\u5408\u306f\u3001<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u306e\u3088\u3046\u306a\u5c02\u9580\u5bb6\u306b\u76f8\u8ac7\u3057\u3001\u5f71\u97ff\u7bc4\u56f2\u3068\u6700\u5c0f\u5909\u66f4\u306e\u7dda\u5f15\u304d\u3092\u5148\u306b\u56fa\u3081\u308b\u65b9\u304c\u3001\u53ce\u675f\u304c\u65e9\u304f\u306a\u308a\u3084\u3059\u3044\u3067\u3059\u3002<\/p> <p>\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\uff1a<a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\">https:\/\/jouhou.main.jp\/?page_id=26983<\/a><\/p> <p>\u96fb\u8a71\uff1a<a href=\"tel:0120838831\">0120-838-831<\/a><\/p> \r\n\r\n <p>\u3000<\/p> <a id=\"sec05\"><\/a> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u7b2c5\u7ae0\uff1a\u3088\u304f\u3042\u308b\u5d29\u308c\u65b9\u2015\u2015\u30c7\u30d5\u30a9\u30eb\u30c8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u6d88\u5931\u30fb\u30e1\u30c8\u30ea\u30c3\u30af\u9006\u8ee2\u30fbDHCP\u66f4\u65b0\u306e\u7f60<\/h2> <p>ENETUNREACH(101)\u306e\u539f\u56e0\u306f\u591a\u5c90\u306b\u898b\u3048\u307e\u3059\u304c\u3001\u73fe\u5834\u3067\u7e70\u308a\u8fd4\u3057\u51fa\u4f1a\u3046\u201c\u5d29\u308c\u65b9\u201d\u306b\u306f\u30d1\u30bf\u30fc\u30f3\u304c\u3042\u308a\u307e\u3059\u3002\u30d1\u30bf\u30fc\u30f3\u3092\u62bc\u3055\u3048\u308b\u3068\u3001\u5207\u308a\u5206\u3051\u306e\u901f\u5ea6\u304c\u4e0a\u304c\u308a\u3001\u7121\u99c4\u306a\u5909\u66f4\u306b\u6b6f\u6b62\u3081\u304c\u304b\u304b\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001Red Hat\u7cfb\u306e\u904b\u7528\u3067\u983b\u767a\u3059\u308b3\u3064\u306e\u7f60\u3092\u4e2d\u5fc3\u306b\u3001\u89b3\u6e2c\u306e\u30dd\u30a4\u30f3\u30c8\u3068\u6700\u5c0f\u5909\u66f4\u306e\u8003\u3048\u65b9\u3092\u6574\u7406\u3057\u307e\u3059\u3002<\/p> <hr> <h3>\u30d1\u30bf\u30fc\u30f3A\uff1a\u30c7\u30d5\u30a9\u30eb\u30c8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u306e\u6d88\u5931\uff08\u5916\u5411\u304d\u304c\u4e00\u6589\u306b\u843d\u3061\u308b\uff09<\/h3> <p>\u5916\u5411\u304d\u901a\u4fe1\u304c\u307e\u3068\u3081\u3066\u4e0d\u9054\u306b\u306a\u308a\u3001\u300cNetwork is unreachable\u300d\u304c\u5e83\u7bc4\u56f2\u3067\u51fa\u308b\u3068\u304d\u3001\u307e\u305a\u7591\u3046\u3079\u304d\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u306e\u6b20\u843d\u3067\u3059\u3002\u3068\u304f\u306bDHCP\u74b0\u5883\u3084\u3001\u63a5\u7d9a\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u304c\u8907\u6570\u3042\u308b\u74b0\u5883\u3067\u306f\u3001\u30ea\u30f3\u30af\u306fUP\u306e\u307e\u307e\u3067\u3082\u30c7\u30d5\u30a9\u30eb\u30c8\u3060\u3051\u304c\u6d88\u3048\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30a2\u30d7\u30ea\u304b\u3089\u898b\u308b\u3068\u201c\u5168\u6ec5\u201d\u306b\u898b\u3048\u307e\u3059\u304c\u3001OS\u3068\u3057\u3066\u306f\u300c\u3069\u3053\u3078\u3082\u51fa\u305b\u306a\u3044\u300d\u72b6\u614b\u306a\u306e\u3067\u3001ENETUNREACH\u3068\u3057\u3066\u8fd4\u308b\u306e\u306f\u7406\u5c48\u306b\u5408\u3044\u307e\u3059\u3002<\/p> <p>\u89b3\u6e2c\u306e\u30b3\u30c4\u306f\u3001\u300cdefault\u304c\u7121\u3044\u300d\u3053\u3068\u3092\u4e00\u70b9\u3067\u65ad\u5b9a\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001<strong>IF\u306e\u72b6\u614b\uff08link\/addr\uff09<\/strong>\u3001<strong>\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u60c5\u5831<\/strong>\u3001<strong>NetworkManager\u306e\u63a5\u7d9a\u72b6\u614b<\/strong>\u3092\u540c\u6642\u306b\u898b\u308b\u3053\u3068\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u300c\u7269\u7406\u30fbL2\u306e\u554f\u984c\u300d\u3068\u300cL3\u306e\u7d4c\u8def\u554f\u984c\u300d\u3092\u5206\u96e2\u3057\u3001\u8b70\u8ad6\u3092\u6c88\u9759\u5316\u3067\u304d\u307e\u3059\u3002<\/p> <ul> <li><p>default\u306e\u6709\u7121\uff1aip route show default<\/p><\/li> <li><p>\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u60c5\u5831\uff1anmcli dev show &lt;IF&gt;\uff08IP4.GATEWAY\u7b49\uff09<\/p><\/li> <li><p>\u30ea\u30f3\u30af\u3068\u30a2\u30c9\u30ec\u30b9\uff1aip -br link \/ ip -br addr<\/p><\/li> <\/ul> <hr> <h3>\u30d1\u30bf\u30fc\u30f3B\uff1a\u30e1\u30c8\u30ea\u30c3\u30af\u9006\u8ee2\uff08\u201c\u3064\u306a\u304c\u308b\u306f\u305a\u201d\u306e\u51fa\u53e3\u304c\u5909\u308f\u308b\uff09<\/h3> <p>\u8907\u6570NIC\u3084\u8907\u6570\u56de\u7dda\u304c\u3042\u308b\u30b5\u30fc\u30d0\u3067\u8d77\u3053\u308a\u3084\u3059\u3044\u306e\u304c\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u304c\u8907\u6570\u5b58\u5728\u3057\u3001\u512a\u5148\u5ea6\uff08metric\uff09\u304c\u60f3\u5b9a\u3068\u9006\u306b\u306a\u308b\u30b1\u30fc\u30b9\u3067\u3059\u3002\u904b\u7528\u4e0a\u306f\u3001\u7ba1\u7406\u7cfb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u696d\u52d9\u7cfb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u4e26\u7acb\u3057\u3001\u7247\u65b9\u306f\u76e3\u8996\u30fb\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u7528\u3001\u3082\u3046\u7247\u65b9\u306f\u696d\u52d9\u901a\u4fe1\u7528\u3068\u3044\u3046\u5f62\u304c\u73cd\u3057\u304f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u306e\u3068\u304d\u3001\u512a\u5148\u5ea6\u306e\u9006\u8ee2\u304c\u8d77\u304d\u308b\u3068\u3001\u9001\u4fe1\u5143IP\u3084\u51fa\u53e3IF\u304c\u5909\u308f\u308a\u3001\u623b\u308a\u7d4c\u8def\u3084ACL\u306e\u6574\u5408\u304c\u5d29\u308c\u3066\u5230\u9054\u4e0d\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <p>\u3053\u306e\u30d1\u30bf\u30fc\u30f3\u306e\u5384\u4ecb\u3055\u306f\u3001\u300cdefault\u306f\u5b58\u5728\u3059\u308b\u300d\u305f\u3081\u3001\u5358\u7d14\u306a\u6b20\u843d\u30c1\u30a7\u30c3\u30af\u3060\u3051\u3060\u3068\u898b\u843d\u3068\u3059\u70b9\u3067\u3059\u3002\u3060\u304b\u3089\u3053\u305d\u3001ip route get\u3067\u201c\u5b9f\u969b\u306b\u9078\u3070\u308c\u308b\u51fa\u53e3\u201d\u3092\u78ba\u5b9a\u3057\u3001\u60f3\u5b9a\u3068\u6bd4\u8f03\u3059\u308b\u3053\u3068\u304c\u30c0\u30e1\u30fc\u30b8\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <table style=\"border-collapse:collapse; width:100%; max-width:100%; box-sizing:border-box;\"> <tr> <th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u89b3\u6e2c<\/th> <th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u8d77\u3053\u308a\u304c\u3061\u306a\u80cc\u666f<\/th> <th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u78ba\u8a8d\u306e\u8981\u70b9<\/th> <\/tr> <tr> <td style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; vertical-align:top;\">default\u304c\u8907\u6570\u3042\u308a\u3001\u60f3\u5b9a\u5916\u306eIF\u304c\u9078\u3070\u308c\u308b<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u65b0NIC\u8ffd\u52a0\u3001\u63a5\u7d9a\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u8ffd\u52a0\u3001DHCP\u518d\u53d6\u5f97\u3067metric\u304c\u5909\u5316<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">ip route show default \u306emetric\u6bd4\u8f03\u3001ip route get \u306edev\/via\u78ba\u8a8d<\/td> <\/tr> <tr> <td style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u9001\u4fe1\u5143IP\u304c\u5909\u308f\u308a\u3001\u7279\u5b9a\u5b9b\u5148\u3060\u3051\u4e0d\u9054<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u51fa\u53e3IF\u5909\u66f4\u306b\u4f34\u3044src\u304c\u5909\u5316\u3001\u623b\u308a\u7d4c\u8def\u3084ACL\u304c\u975e\u5bfe\u79f0\u5316<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">ip route get \u306esrc\u3001\u5fc5\u8981\u306a\u3089from\u6307\u5b9a\u3067\u5dee\u5206\u3092\u898b\u308b<\/td> <\/tr> <\/table> <hr> <h3>\u30d1\u30bf\u30fc\u30f3C\uff1aDHCP\u66f4\u65b0\u306e\u7f60\uff08IP\u306f\u6b8b\u3063\u3066\u3044\u308b\u306e\u306b\u7d4c\u8def\u3060\u3051\u304c\u5165\u308c\u66ff\u308f\u308b\uff09<\/h3> <p>DHCP\u306f\u4fbf\u5229\u3067\u3059\u304c\u3001\u66f4\u65b0\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u7d4c\u8def\u304c\u7f6e\u304d\u63db\u308f\u308a\u3001\u60f3\u5b9a\u3057\u3066\u3044\u305f\u9759\u7684\u30eb\u30fc\u30c8\u3084\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u524d\u63d0\u304c\u5d29\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u30ed\u30b0\u4e0a\u306f\u201c\u66f4\u65b0\u201d\u3068\u3057\u3066\u3057\u304b\u898b\u3048\u305a\u3001\u73fe\u5834\u611f\u899a\u3067\u306f\u300c\u6025\u306b\u8d77\u304d\u305f\u300d\u306b\u898b\u3048\u307e\u3059\u3002\u3053\u3053\u3067\u91cd\u8981\u306a\u306e\u306f\u3001\u5909\u66f4\u306e\u75d5\u8de1\u3092\u898b\u3064\u3051\u3066\u201c\u4e8b\u6545\u306e\u7b4b\u9053\u201d\u3092\u4f5c\u308a\u3001\u518d\u767a\u9632\u6b62\u306b\u7e4b\u3052\u308b\u3053\u3068\u3067\u3059\u3002<\/p> <p>NetworkManager\u306e\u30ed\u30b0\uff08journalctl\uff09\u3068\u3001\u7d4c\u8def\u8868\u306eproto\uff08dhcp\/static\uff09\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3068\u3001\u300c\u3044\u3064\u300d\u300c\u3069\u306e\u63a5\u7d9a\u3067\u300d\u300c\u3069\u306e\u7d4c\u8def\u304c\u5165\u308c\u66ff\u308f\u3063\u305f\u304b\u300d\u304c\u898b\u3048\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u5fa9\u65e7\u3092\u6025\u3050\u307b\u3069\u3001\u539f\u56e0\u306e\u8aac\u660e\u304c\u5f8c\u56de\u3057\u306b\u306a\u308a\u304c\u3061\u3067\u3059\u304c\u3001\u5f8c\u304b\u3089\u793e\u5185\u8abf\u6574\u304c\u91cd\u304f\u306a\u308b\u74b0\u5883\u307b\u3069\u3001\u6700\u4f4e\u9650\u306e\u75d5\u8de1\u306f\u6b8b\u3057\u3066\u304a\u304f\u65b9\u304c\u53ce\u675f\u304c\u65e9\u3044\u3067\u3059\u3002<\/p> <ul> <li><p>\u7d4c\u8def\u306e\u7531\u6765\uff1aip route show \u306e proto\uff08dhcp\/static\uff09<\/p><\/li> <li><p>\u66f4\u65b0\u75d5\u8de1\uff1ajournalctl -u NetworkManager -b\uff08DHCP\u66f4\u65b0\u30fb\u63a5\u7d9a\u5207\u66ff\u306e\u884c\u3092\u8ffd\u3046\uff09<\/p><\/li> <li><p>\u63a5\u7d9a\u8a2d\u5b9a\u306e\u6574\u5408\uff1anmcli connection show\uff08gateway\/route-metric\/routes \u306e\u5dee\u5206\u78ba\u8a8d\uff09<\/p><\/li> <\/ul> <hr> <h3>\u201c\u6700\u5c0f\u5909\u66f4\u201d\u306e\u57fa\u672c\u59ff\u52e2\uff1a\u4e00\u6642\u63aa\u7f6e\u2192\u6052\u4e45\u5316\u2192\u518d\u767a\u9632\u6b62\u306e\u9806\u3067\u6e29\u5ea6\u3092\u4e0b\u3052\u308b<\/h3> <p>\u73fe\u5834\u306e\u8981\u8acb\u3068\u3057\u3066\u300c\u4eca\u3059\u3050\u623b\u3059\u300d\u306f\u5f37\u3044\u4e00\u65b9\u3067\u3001\u6052\u4e45\u5316\u306e\u5909\u66f4\u306b\u306f\u627f\u8a8d\u3084\u76e3\u67fb\u304c\u5fc5\u8981\u306a\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u6df7\u305c\u3066\u3057\u307e\u3046\u3068\u3001\u5fa9\u65e7\u306f\u3057\u3066\u3082\u300c\u4f55\u3092\u5909\u3048\u305f\u304b\u300d\u300c\u6b21\u306b\u3069\u3046\u623b\u308b\u304b\u300d\u304c\u66d6\u6627\u306b\u306a\u308a\u3001\u5f8c\u304b\u3089\u8b70\u8ad6\u304c\u904e\u71b1\u3057\u307e\u3059\u3002\u3060\u304b\u3089\u3053\u305d\u3001\u307e\u305a\u306f\u73fe\u72b6\u3092\u63a1\u53d6\u3057\u3066\u3001\u5f71\u97ff\u7bc4\u56f2\u3092\u898b\u7a4d\u3082\u308a\u3001\u5fc5\u8981\u6700\u5c0f\u9650\u306e\u4e00\u6642\u63aa\u7f6e\u3067\u901a\u4fe1\u3092\u623b\u3057\u3001\u305d\u306e\u5f8c\u306b\u63a5\u7d9a\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u7b49\u3078\u6052\u4e45\u53cd\u6620\u3057\u3001\u6700\u5f8c\u306b\u76e3\u8996\u30fb\u624b\u9806\u30fb\u5909\u66f4\u7ba1\u7406\u3067\u518d\u767a\u9632\u6b62\u3078\u9032\u3080\u3001\u3068\u3044\u3046\u9806\u5e8f\u304c\u8edf\u7740\u9678\u3057\u3084\u3059\u3044\u3067\u3059\u3002<\/p> <p>\u305f\u3060\u3057\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u3084\u30e1\u30c8\u30ea\u30c3\u30af\u306e\u5909\u66f4\u306f\u3001\u7ba1\u7406\u7cfb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3084\u9060\u9694\u5fa9\u65e7\u7d4c\u8def\u306b\u6ce2\u53ca\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u500b\u5225\u6848\u4ef6\u3067\u306f\u3001\u69cb\u6210\u30fb\u5951\u7d04\u30fb\u76e3\u67fb\u306e\u524d\u63d0\u304c\u7d61\u3080\u305f\u3081\u3001\u4e00\u822c\u8ad6\u3060\u3051\u3067\u5b89\u5168\u57df\u3092\u65ad\u8a00\u3067\u304d\u307e\u305b\u3093\u3002\u5224\u65ad\u304c\u96e3\u3057\u3044\u5834\u5408\u306f\u3001<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u3078\u306e\u76f8\u8ac7\u30fb\u4f9d\u983c\u3092\u691c\u8a0e\u3057\u3001\u5f71\u97ff\u7bc4\u56f2\u3068\u5909\u66f4\u5e45\u306e\u7dda\u5f15\u304d\u3092\u5148\u306b\u56fa\u3081\u308b\u65b9\u304c\u3001\u7d50\u679c\u3068\u3057\u3066\u65e9\u3044\u53ce\u675f\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p> <p>\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\uff1a<a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\">https:\/\/jouhou.main.jp\/?page_id=26983<\/a><\/p> <p>\u96fb\u8a71\uff1a<a href=\"tel:0120838831\">0120-838-831<\/a><\/p> \r\n\r\n <p>\u3000<\/p> <a id=\"sec06\"><\/a> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u7b2c6\u7ae0\uff1aRed Hat\u7279\u6709\u306e\u4ea4\u5dee\u70b9\u2015\u2015NetworkManager\u3068\u8a2d\u5b9a\u306e\u30ba\u30ec\u304c\u201c\u623b\u308b\u969c\u5bb3\u201d\u3092\u4f5c\u308b<\/h2> <p>Red Hat\u7cfb\u3067\u306eENETUNREACH\u5bfe\u5fdc\u304c\u9577\u5f15\u304f\u7406\u7531\u306e\u3072\u3068\u3064\u306b\u3001NetworkManager\u304c\u201c\u63a5\u7d9a\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u201d\u3068\u3057\u3066\u8a2d\u5b9a\u3092\u6301\u3061\u3001\u9069\u7528\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3084\u512a\u5148\u5ea6\u304c\u904b\u7528\u306e\u7a4d\u307f\u91cd\u306d\u3067\u8907\u96d1\u5316\u3057\u3066\u3044\u308b\u70b9\u304c\u3042\u308a\u307e\u3059\u3002\u73fe\u5834\u3067\u306f\u3001\u3044\u3063\u305f\u3093\u901a\u4fe1\u304c\u623b\u3063\u3066\u3082\u3001\u518d\u8d77\u52d5\u3084\u30ea\u30f3\u30af\u65ad\u30fb\u518d\u63a5\u7d9a\u3067\u5143\u306b\u623b\u308a\u3001\u540c\u3058\u969c\u5bb3\u304c\u518d\u71c3\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u300c\u76f4\u3063\u3066\u3044\u306a\u3044\u300d\u306e\u3067\u306f\u306a\u304f\u3001<strong>\u6052\u4e45\u8a2d\u5b9a\u3068\u3057\u3066\u6574\u5408\u3057\u3066\u3044\u306a\u3044<\/strong>\u3053\u3068\u304c\u539f\u56e0\u3067\u3042\u308b\u30b1\u30fc\u30b9\u304c\u591a\u3044\u3067\u3059\u3002<\/p> <hr> <h3>\u30ba\u30ec\u304c\u8d77\u304d\u308b\u5178\u578b\uff1a\u63a5\u7d9a\u304c\u8907\u6570\u3042\u308a\u3001\u610f\u56f3\u3057\u306a\u3044\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u304c\u6709\u52b9\u5316\u3055\u308c\u308b<\/h3> <p>\u540c\u3058IF\u306b\u5bfe\u3057\u3066\u63a5\u7d9a\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u304c\u8907\u6570\u5b58\u5728\u3057\u3001\u904b\u7528\u4e2d\u306b\u8ffd\u52a0\u3055\u308c\u305f\u3082\u306e\u304c\u512a\u5148\u3055\u308c\u305f\u308a\u3001\u518d\u63a5\u7d9a\u6642\u306b\u5225\u306e\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u304c\u9078\u3070\u308c\u305f\u308a\u3059\u308b\u3068\u3001\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3084\u30e1\u30c8\u30ea\u30c3\u30af\u304c\u60f3\u5b9a\u3068\u5909\u308f\u308a\u307e\u3059\u3002\u898b\u305f\u76ee\u3068\u3057\u3066\u306f\u300c\u8a2d\u5b9a\u306f\u3042\u308b\u306e\u306b\u52b9\u304b\u306a\u3044\u300d\u300c\u623b\u3063\u305f\u306f\u305a\u306a\u306e\u306b\u307e\u305f\u8d77\u304d\u308b\u300d\u3068\u3044\u3046\u5f62\u3067\u73fe\u308c\u3001\u73fe\u5834\u306e\u75b2\u5f0a\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p> <p>\u3053\u3053\u3067\u306f\u3001<strong>\u3069\u306e\u63a5\u7d9a\u304c\u3069\u306eIF\u306b\u7d10\u3065\u3044\u3066\u3044\u308b\u304b<\/strong>\u3068\u3001<strong>\u305d\u306e\u63a5\u7d9a\u304c\u6301\u3064gateway\/metric\/routes<\/strong>\u3092\u63c3\u3048\u3066\u628a\u63e1\u3059\u308b\u306e\u304c\u7b2c\u4e00\u3067\u3059\u3002\u628a\u63e1\u304c\u63c3\u3046\u3068\u3001\u201c\u6b21\u306b\u623b\u3089\u306a\u3044\u201d\u65b9\u5411\u3078\u9032\u3081\u307e\u3059\u3002<\/p> <pre style=\"white-space:pre-wrap; word-break:break-word; border:1px solid #cccccc; padding:10px; max-width:100%; box-sizing:border-box;\">nmcli dev status nmcli connection show nmcli -f NAME,UUID,DEVICE,TYPE,AUTOCONNECT connection show<\/pre> <hr> <h3>DHCP\/\u9759\u7684\u306e\u6df7\u5728\uff1amethod\u306e\u9055\u3044\u304c\u7d4c\u8def\u306e\u201c\u63a1\u7528\u201d\u3092\u5909\u3048\u308b<\/h3> <p>\u63a5\u7d9a\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3067\u306f\u3001IPv4\u306emethod\uff08auto\/manual\/disabled\uff09\u304c\u901a\u4fe1\u306e\u524d\u63d0\u3092\u5909\u3048\u307e\u3059\u3002DHCP\u3092\u524d\u63d0\u306b\u3057\u3066\u3044\u308b\u306e\u306b\u3001\u5225\u306e\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u304cmanual\u3067\u56fa\u5b9a\u5024\u3092\u6301\u3063\u3066\u3044\u305f\u308a\u3001\u9006\u306b\u9759\u7684\u904b\u7528\u306e\u306f\u305a\u304cauto\u3067\u518d\u53d6\u5f97\u3057\u3066\u3057\u307e\u3063\u305f\u308a\u3059\u308b\u3068\u3001\u30eb\u30fc\u30c8\u306e\u7531\u6765\uff08proto\uff09\u3084\u30e1\u30c8\u30ea\u30c3\u30af\u304c\u5909\u308f\u308a\u3001ENETUNREACH\u306e\u4f0f\u7dda\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u3053\u306f\u201c\u6b63\u89e3\u306e\u5f62\u201d\u304c\u74b0\u5883\u3054\u3068\u306b\u9055\u3046\u305f\u3081\u3001\u4e00\u822c\u8ad6\u3088\u308a\u3082<strong>\u73fe\u5834\u306e\u8981\u4ef6\uff08\u7ba1\u7406\u7cfb\u30fb\u696d\u52d9\u7cfb\u30fb\u76e3\u67fb\u30fb\u5197\u9577\u5316\uff09<\/strong>\u3092\u5148\u306b\u63c3\u3048\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p> <hr> <h3>\u201c\u623b\u3089\u306a\u3044\u5fa9\u65e7\u201d\u306e\u305f\u3081\u306b\uff1a\u5909\u66f4\u70b9\u3092\u5c0f\u3055\u304f\u3001\u5dee\u5206\u3092\u8a00\u8a9e\u5316\u3067\u304d\u308b\u72b6\u614b\u306b\u3059\u308b<\/h3> <p>NetworkManager\u5468\u308a\u306f\u3001\u5909\u66f4\u3092\u7a4d\u307f\u4e0a\u3052\u308b\u307b\u3069\u8aac\u660e\u304c\u96e3\u3057\u304f\u306a\u308a\u3001\u5f15\u304d\u7d99\u304e\u6642\u306b\u4e8b\u6545\u304c\u518d\u71c3\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u3060\u304b\u3089\u3053\u305d\u3001\u5fa9\u65e7\u5c40\u9762\u3067\u306f\u300c\u6700\u5c0f\u5909\u66f4\u300d\u300c\u5f71\u97ff\u7bc4\u56f2\u300d\u300c\u5dee\u5206\u306e\u8aac\u660e\u53ef\u80fd\u6027\u300d\u3092\u512a\u5148\u3057\u3001\u5fc5\u8981\u306a\u3089\u4e00\u6642\u63aa\u7f6e\u3068\u6052\u4e45\u5316\u3092\u5206\u96e2\u3057\u3066\u9032\u3081\u308b\u65b9\u304c\u3001\u7d50\u679c\u3068\u3057\u3066\u73fe\u5834\u304c\u697d\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <p>\u307e\u305f\u3001\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u3001\u30b3\u30f3\u30c6\u30ca\u3001\u672c\u756a\u30c7\u30fc\u30bf\u3001\u76e3\u67fb\u8981\u4ef6\u304c\u7d61\u3080\u3068\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5c0f\u3055\u306a\u5909\u66f4\u3067\u3082\u5f71\u97ff\u304c\u5927\u304d\u304f\u306a\u308a\u5f97\u307e\u3059\u3002\u5224\u65ad\u304c\u96e3\u3057\u3044\u72b6\u6cc1\u307b\u3069\u3001<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u306e\u3088\u3046\u306a\u5c02\u9580\u5bb6\u306b\u76f8\u8ac7\u3057\u3001\u73fe\u5834\u306e\u5236\u7d04\u306b\u5408\u308f\u305b\u3066\u201c\u8edf\u7740\u9678\u3067\u304d\u308b\u5fa9\u65e7\u8a08\u753b\u201d\u3092\u4f5c\u308b\u65b9\u304c\u3001\u53ce\u675f\u3068\u518d\u767a\u9632\u6b62\u306e\u4e21\u65b9\u306b\u52b9\u304d\u307e\u3059\u3002<\/p> <p>\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\uff1a<a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\">https:\/\/jouhou.main.jp\/?page_id=26983<\/a><\/p> <p>\u96fb\u8a71\uff1a<a href=\"tel:0120838831\">0120-838-831<\/a><\/p> \r\n\r\n\r\n\r\n<p>\u3000<\/p> <a id=\"sec07\"><\/a> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u7b2c7\u7ae0\uff1a\u8907\u96d1\u5316\u306e\u4f0f\u7dda\u2015\u2015VRF\u30fb\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3067\u201c\u898b\u3048\u308b\u7d4c\u8def\u201d\u3068\u201c\u51fa\u3066\u3044\u304f\u7d4c\u8def\u201d\u304c\u30ba\u30ec\u308b<\/h2> <p>ENETUNREACH(101)\u304c\u5384\u4ecb\u306b\u306a\u308b\u306e\u306f\u3001\u5358\u7d14\u306a\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u6b20\u843d\u3060\u3051\u3067\u306a\u304f\u3001\u300c\u7d4c\u8def\u306e\u9078\u3073\u65b9\u300d\u81ea\u4f53\u304c\u8907\u6570\u306e\u6761\u4ef6\u3067\u5206\u5c90\u3057\u3066\u3044\u308b\u74b0\u5883\u3067\u3059\u3002\u62e0\u70b9\u9593VPN\u3001\u76e3\u67fb\u8981\u4ef6\u3067\u306e\u9001\u4fe1\u5143\u56fa\u5b9a\u3001\u696d\u52d9\u7cfb\u3068\u7ba1\u7406\u7cfb\u306e\u5206\u96e2\u3001\u7279\u5b9a\u5b9b\u5148\u3060\u3051\u5225\u56de\u7dda\u3001\u3068\u3044\u3063\u305f\u904b\u7528\u4e0a\u306e\u8981\u8acb\u304c\u7a4d\u307f\u4e0a\u304c\u308b\u3068\u3001VRF\u3084\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u5c0e\u5165\u3055\u308c\u3001\u7d50\u679c\u3068\u3057\u3066\u201c\u898b\u3048\u308b\u7d4c\u8def\u201d\u3068\u201c\u5b9f\u969b\u306e\u51fa\u53e3\u201d\u304c\u30ba\u30ec\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u73fe\u5834\u3067\u306f\u300c\u7d4c\u8def\u8868\u306b\u3042\u308b\u306e\u306b\u5230\u9054\u3067\u304d\u306a\u3044\u300d\u300c\u3044\u3064\u3082\u901a\u308a\u306b\u898b\u3048\u308b\u306e\u306b\u7a81\u7136\u51fa\u3089\u308c\u306a\u3044\u300d\u3068\u3044\u3046\u5f62\u3067\u73fe\u308c\u3001\u8aac\u660e\u304c\u96e3\u3057\u304f\u306a\u3063\u3066\u3044\u304d\u307e\u3059\u3002<\/p> <hr> <h3>VRF\u3068\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u9055\u3044\uff1a\u540c\u3058\u201c\u5206\u96e2\u201d\u3067\u3082\u30c8\u30e9\u30d6\u30eb\u306e\u51fa\u65b9\u304c\u5909\u308f\u308b<\/h3> <p>\u4e21\u8005\u306f\u3069\u3061\u3089\u3082\u901a\u4fe1\u306e\u5206\u96e2\u3084\u5236\u5fa1\u306b\u4f7f\u308f\u308c\u307e\u3059\u304c\u3001\u554f\u984c\u306e\u898b\u3048\u65b9\u304c\u9055\u3044\u307e\u3059\u3002ENETUNREACH\u306e\u5207\u308a\u5206\u3051\u3067\u306f\u3001\u3069\u3061\u3089\u306e\u4ed5\u7d44\u307f\u304c\u50cd\u3044\u3066\u3044\u308b\u304b\u3092\u6700\u521d\u306b\u8a00\u8449\u3067\u63c3\u3048\u308b\u3068\u3001\u8b70\u8ad6\u306e\u6e29\u5ea6\u304c\u4e0b\u304c\u308a\u3084\u3059\u3044\u3067\u3059\u3002<\/p> <table style=\"border-collapse:collapse; width:100%; max-width:100%; box-sizing:border-box;\"> <tr> <th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u89b3\u70b9<\/th> <th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">VRF<\/th> <th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\uff08ip rule\uff09<\/th> <\/tr> <tr> <td style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u76ee\u7684<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u7a7a\u9593\u305d\u306e\u3082\u306e\u3092\u5206\u96e2\u3057\u3066\u3001\u5225\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u3057\u3066\u6271\u3046<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u6761\u4ef6\uff08\u9001\u4fe1\u5143\u30fb\u5b9b\u5148\u30fb\u30de\u30fc\u30af\u7b49\uff09\u3067\u53c2\u7167\u3059\u308b\u7d4c\u8def\u8868\u3092\u5207\u308a\u66ff\u3048\u308b<\/td> <\/tr> <tr> <td style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u30cf\u30de\u308a\u65b9<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u300c\u305d\u306eVRF\u306b\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u304c\u7121\u3044\u300d\u300cVRF\u5185\u3060\u3051\u5916\u3078\u51fa\u3089\u308c\u306a\u3044\u300d<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">main\u306f\u6b63\u3057\u304f\u3066\u3082\u3001\u5225\u30c6\u30fc\u30d6\u30eb\u304c\u9078\u3070\u308c\u3066\u3044\u3066\u5b9b\u5148\u7d4c\u8def\u304c\u6b20\u3051\u308b<\/td> <\/tr> <tr> <td style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u73fe\u5834\u306e\u898b\u3048\u65b9<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u540c\u3058\u30db\u30b9\u30c8\u3067\u3082\u201c\u7d4c\u8def\u304c\u5225\u4e16\u754c\u201d\u306b\u306a\u308a\u3001\u6bd4\u8f03\u304c\u96e3\u3057\u3044<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u300c\u7d4c\u8def\u8868\u306f\u3042\u308b\u306e\u306b\u2026\u300d\u304c\u8d77\u304d\u3084\u3059\u3044\uff08\u53c2\u7167\u8868\u304c\u9055\u3046\uff09<\/td> <\/tr> <\/table> <hr> <h3>\u300c\u3069\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u898b\u306b\u884c\u3063\u3066\u3044\u308b\u304b\u300d\u3092\u78ba\u5b9a\u3059\u308b\u306e\u304c\u6b6f\u6b62\u3081\u306b\u306a\u308b<\/h3> <p>\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3067\u306f\u3001\u3069\u306e\u901a\u4fe1\u304c\u3069\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u53c2\u7167\u3057\u3066\u3044\u308b\u304b\u304c\u5206\u304b\u3089\u306a\u3044\u3068\u3001\u5bfe\u7b56\u304c\u201c\u5824\u9632\u3092\u7bc9\u304f\u201d\u3069\u3053\u308d\u304b\u3001\u6c34\u8def\u3092\u5897\u3084\u3057\u3066\u3057\u307e\u3044\u304c\u3061\u3067\u3059\u3002\u3053\u3053\u3067\u306e\u8981\u70b9\u306f\u3001\u7d4c\u8def\u8868\u306e\u4e00\u89a7\u3092\u773a\u3081\u308b\u3088\u308a\u5148\u306b\u3001\u5b9b\u5148\u3068\u9001\u4fe1\u5143\u3092\u56fa\u5b9a\u3057\u3066\u300cOS\u304c\u3069\u306e\u51fa\u53e3\u3092\u9078\u3093\u3067\u3044\u308b\u304b\u300d\u3092\u78ba\u5b9a\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u78ba\u5b9a\u3067\u304d\u308b\u3068\u3001\u6b20\u3051\u3066\u3044\u308b\u306e\u306f\u201c\u7d4c\u8def\u305d\u306e\u3082\u306e\u201d\u306a\u306e\u304b\u3001\u201c\u9078\u629e\u6761\u4ef6\u201d\u306a\u306e\u304b\u304c\u6574\u7406\u3067\u304d\u3001\u6700\u5c0f\u5909\u66f4\u306b\u5bc4\u305b\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p> <p>\u7279\u306b\u591a\u3044\u306e\u306f\u3001\u9001\u4fe1\u5143IP\u304c\u610f\u56f3\u305b\u305a\u5909\u308f\u308a\u3001\u305d\u306e\u9001\u4fe1\u5143\u306b\u5bfe\u3059\u308brule\u304c\u5225\u30c6\u30fc\u30d6\u30eb\u3078\u632f\u308a\u5206\u3051\u3066\u3044\u308b\u30b1\u30fc\u30b9\u3067\u3059\u3002main\u30c6\u30fc\u30d6\u30eb\u3060\u3051\u3092\u898b\u3066\u3082\u539f\u56e0\u306b\u5c4a\u304b\u305a\u3001\u73fe\u5834\u306e\u7a7a\u6c17\u304c\u5f35\u308a\u8a70\u3081\u307e\u3059\u3002\u9006\u306b\u3001\u53c2\u7167\u30c6\u30fc\u30d6\u30eb\u304c\u898b\u3048\u305f\u77ac\u9593\u306b\u300c\u3053\u306e\u30c6\u30fc\u30d6\u30eb\u306b\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u304c\u7121\u3044\u300d\u300c\u3053\u306e\u5b9b\u5148\u306e\u9759\u7684\u30eb\u30fc\u30c8\u304c\u7121\u3044\u300d\u3068\u3044\u3063\u305f\u201c\u7a74\u57cb\u3081\u30dd\u30a4\u30f3\u30c8\u201d\u304c\u660e\u78ba\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <hr> <h3>\u975e\u5bfe\u79f0\u3068\u5230\u9054\u4e0d\u80fd\uff1a\u623b\u308a\u7d4c\u8def\u304c\u6210\u7acb\u3057\u306a\u3044\u3068\u201c\u5230\u9054\u3067\u304d\u306a\u3044\u201d\u306b\u898b\u3048\u308b<\/h3> <p>VRF\u3084\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c8\u3067\u306f\u3001\u884c\u304d\u3068\u623b\u308a\u306e\u7d4c\u8def\u304c\u63c3\u308f\u306a\u3044\u975e\u5bfe\u79f0\u304c\u8d77\u3053\u308a\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u884c\u304d\u306f\u5225\u56de\u7dda\u3001\u623b\u308a\u306f\u5225\u306e\u51fa\u53e3\u3001\u3068\u3044\u3046\u69cb\u6210\u81ea\u4f53\u306f\u8981\u4ef6\u3068\u3057\u3066\u3042\u308a\u5f97\u307e\u3059\u304c\u3001\u9014\u4e2d\u306e\u6a5f\u5668\uff08ACL\u3001NAT\u3001\u7d4c\u8def\u5236\u5fa1\uff09\u3084\u76e3\u8996\u306e\u524d\u63d0\u304c\u63c3\u3063\u3066\u3044\u306a\u3044\u3068\u3001\u7d50\u679c\u3068\u3057\u3066\u30a2\u30d7\u30ea\u304b\u3089\u306f\u5230\u9054\u4e0d\u80fd\u306b\u898b\u3048\u307e\u3059\u3002ENETUNREACH\u306f\u201c\u9001\u308b\u9053\u304c\u6c7a\u3081\u3089\u308c\u306a\u3044\u201d\u5bc4\u308a\u306e\u30a8\u30e9\u30fc\u3067\u3059\u304c\u3001\u73fe\u5834\u3067\u306f\u8907\u5408\u7684\u306a\u4e0d\u6574\u5408\u306e\u5165\u53e3\u3068\u3057\u3066\u73fe\u308c\u308b\u3053\u3068\u3082\u3042\u308b\u305f\u3081\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u5206\u96e2\u304c\u3042\u308b\u74b0\u5883\u307b\u3069\u3001\u7d4c\u8def\u306e\u7b4b\u9053\u3092\u8a00\u8a9e\u5316\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u518d\u767a\u9632\u6b62\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <hr> <h3>\u307e\u3068\u3081\uff1a\u4e00\u822c\u8ad6\u306e\u9650\u754c\u304c\u51fa\u308b\u9818\u57df\u307b\u3069\u3001\u65e9\u3081\u306e\u76f8\u8ac7\u304c\u53ce\u675f\u3092\u65e9\u3081\u308b<\/h3> <p>VRF\u3084\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306f\u3001\u8981\u4ef6\u3092\u6e80\u305f\u3059\u305f\u3081\u306b\u5c0e\u5165\u3055\u308c\u308b\u4e00\u65b9\u3001\u73fe\u5834\u3067\u306e\u5207\u308a\u5206\u3051\u96e3\u6613\u5ea6\u3092\u4e0a\u3052\u307e\u3059\u3002\u3053\u3053\u3067\u7121\u7406\u306b\u201c\u5206\u96e2\u306e\u524d\u63d0\u201d\u3092\u5d29\u3059\u3068\u3001\u77ed\u671f\u7684\u306b\u623b\u3063\u3066\u3082\u904b\u7528\u5168\u4f53\u304c\u4e0d\u5b89\u5b9a\u306b\u306a\u308a\u3001\u6b21\u306e\u969c\u5bb3\u3067\u8b70\u8ad6\u304c\u904e\u71b1\u3057\u307e\u3059\u3002\u500b\u5225\u6848\u4ef6\u3067\u306f\u3001\u5951\u7d04\u30fb\u76e3\u67fb\u30fb\u69cb\u6210\u30fb\u65e2\u5b58\u306e\u904b\u7528\u624b\u9806\u304c\u7d61\u3080\u305f\u3081\u3001\u4e00\u822c\u8ad6\u3060\u3051\u3067\u5b89\u5168\u57df\u3092\u65ad\u8a00\u3057\u306b\u304f\u3044\u9818\u57df\u3067\u3059\u3002<\/p> <p>\u8ff7\u3063\u305f\u3068\u304d\u306f\u3001\u5f71\u97ff\u7bc4\u56f2\u3092\u898b\u7a4d\u3082\u3063\u305f\u3046\u3048\u3067\u3001\u6700\u5c0f\u5909\u66f4\u3067\u8edf\u7740\u9678\u3059\u308b\u9053\u7b4b\u3092\u4f5c\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u3001\u30b3\u30f3\u30c6\u30ca\u3001\u672c\u756a\u30c7\u30fc\u30bf\u3001\u76e3\u67fb\u8981\u4ef6\u304c\u7d61\u3080\u5834\u5408\u306f\u3001\u6a29\u9650\u3084\u8a2d\u5b9a\u3092\u5927\u304d\u304f\u89e6\u308b\u524d\u306b<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u3078\u306e\u76f8\u8ac7\u30fb\u4f9d\u983c\u3092\u691c\u8a0e\u3059\u308b\u65b9\u304c\u3001\u65e9\u3044\u53ce\u675f\u3068\u88ab\u5bb3\u6700\u5c0f\u5316\u306b\u3064\u306a\u304c\u308a\u3084\u3059\u3044\u3067\u3059\u3002<\/p> <p>\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\uff1a<a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\">https:\/\/jouhou.main.jp\/?page_id=26983<\/a><\/p> <p>\u96fb\u8a71\uff1a<a href=\"tel:0120838831\">0120-838-831<\/a><\/p> \r\n\r\n <p>\u3000<\/p> <a id=\"sec08\"><\/a> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u7b2c8\u7ae0\uff1a\u30b3\u30f3\u30c6\u30ca\/\u4eee\u60f3\u5316\u3067\u52a0\u901f\u3059\u308b\u8aa4\u89e3\u2015\u2015\u540d\u524d\u7a7a\u9593\u30fbveth\u30fbCNI\u304c\u201c\u5225\u4e16\u754c\u306e\u7d4c\u8def\u8868\u201d\u3092\u4f5c\u308b<\/h2> <p>\u30db\u30b9\u30c8\u5074\u306e\u7d4c\u8def\u306f\u6574\u3063\u3066\u3044\u308b\u306e\u306b\u3001\u30b3\u30f3\u30c6\u30ca\u3084Pod\u306e\u4e2d\u3060\u3051\u300cNetwork is unreachable\u300d\u306b\u306a\u308b\u3002\u3042\u308b\u3044\u306f\u3001\u7279\u5b9a\u306e\u4eee\u60f3\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u914d\u4e0b\u3060\u3051\u758e\u901a\u304c\u5d29\u308c\u308b\u3002\u3053\u3046\u3057\u305f\u4e8b\u8c61\u306f\u3001\u30b3\u30f3\u30c6\u30ca\/\u4eee\u60f3\u5316\u306e\u666e\u53ca\u3067\u73cd\u3057\u304f\u306a\u304f\u306a\u308a\u307e\u3057\u305f\u3002\u3053\u3053\u3067\u306e\u843d\u3068\u3057\u7a74\u306f\u3001\u300c\u30db\u30b9\u30c8\u306eip route\u3092\u898b\u305f\u304b\u3089\u5927\u4e08\u592b\u300d\u3068\u3044\u3046\u601d\u3044\u8fbc\u307f\u3067\u3059\u3002\u30b3\u30f3\u30c6\u30ca\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u540d\u524d\u7a7a\u9593\u306b\u3088\u3063\u3066\u201c\u5225\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e16\u754c\u201d\u3092\u6301\u3066\u308b\u305f\u3081\u3001\u30db\u30b9\u30c8\u306e\u7d4c\u8def\u3068\u30b3\u30f3\u30c6\u30ca\u5185\u306e\u7d4c\u8def\u306f\u4e00\u81f4\u3057\u307e\u305b\u3093\u3002\u73fe\u5834\u3067\u306f\u3001\u3053\u306e\u524d\u63d0\u306e\u30ba\u30ec\u304c\u30ce\u30a4\u30ba\u306b\u306a\u308a\u3001\u5bfe\u7b56\u306e\u65b9\u5411\u3092\u8aa4\u3089\u305b\u307e\u3059\u3002<\/p> <hr> <h3>\u540d\u524d\u7a7a\u9593\u306e\u57fa\u672c\uff1a\u540c\u3058\u30de\u30b7\u30f3\u3067\u3082\u201c\u5225\u306e\u7d4c\u8def\u8868\u201d\u304c\u5b58\u5728\u3059\u308b<\/h3> <p>Linux\u3067\u306f\u30d7\u30ed\u30bb\u30b9\u5358\u4f4d\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u540d\u524d\u7a7a\u9593\u3092\u5207\u308a\u66ff\u3048\u3089\u308c\u307e\u3059\u3002\u30b3\u30f3\u30c6\u30ca\u306f\u3053\u308c\u3092\u5229\u7528\u3057\u3001\u30b3\u30f3\u30c6\u30ca\u5185\u306b\u72ec\u81ea\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3001IP\u30a2\u30c9\u30ec\u30b9\u3001\u7d4c\u8def\u8868\u3092\u6301\u305f\u305b\u307e\u3059\u3002\u7d50\u679c\u3068\u3057\u3066\u3001\u30db\u30b9\u30c8\u306b\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u304c\u5b58\u5728\u3057\u3066\u3044\u3066\u3082\u3001\u30b3\u30f3\u30c6\u30ca\u5185\u306b\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u304c\u7121\u3044\u3001\u3068\u3044\u3046\u3053\u3068\u304c\u8d77\u3053\u308a\u5f97\u307e\u3059\u3002ENETUNREACH\u306f\u3001\u307e\u3055\u306b\u305d\u306e\u201c\u5225\u4e16\u754c\u5074\u201d\u3067\u7d4c\u8def\u304c\u6210\u7acb\u3057\u306a\u3044\u3068\u304d\u306b\u51fa\u307e\u3059\u3002<\/p> <p>\u3053\u3053\u3067\u91cd\u8981\u306a\u306e\u306f\u3001\u539f\u56e0\u3092\u300c\u30b3\u30f3\u30c6\u30ca\u306e\u4e0d\u5177\u5408\u300d\u3084\u300c\u30a2\u30d7\u30ea\u306e\u4e0d\u5177\u5408\u300d\u3068\u6c7a\u3081\u3064\u3051\u306a\u3044\u3053\u3068\u3067\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e16\u754c\u304c\u5206\u304b\u308c\u3066\u3044\u308b\u306a\u3089\u3001\u78ba\u8a8d\u306e\u5bfe\u8c61\u3082\u5206\u3051\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u5834\u3092\u6574\u3048\u308b\u305f\u3081\u306b\u306f\u3001\u300c\u30db\u30b9\u30c8\u5074\u300d\u300c\u30b3\u30f3\u30c6\u30ca\u5074\u300d\u300c\u4e2d\u9593\uff08\u30d6\u30ea\u30c3\u30b8\u3084CNI\uff09\u300d\u3092\u5207\u308a\u5206\u3051\u3066\u8a00\u8a9e\u5316\u3057\u3001\u3069\u3053\u3067\u9053\u304c\u9014\u5207\u308c\u3066\u3044\u308b\u304b\u3092\u6574\u7406\u3059\u308b\u3053\u3068\u304c\u3001\u8b70\u8ad6\u306e\u904e\u71b1\u3092\u6291\u3048\u307e\u3059\u3002<\/p> <hr> <h3>veth\/\u30d6\u30ea\u30c3\u30b8\/CNI\uff1a\u3069\u3053\u3067\u201c\u51fa\u53e3\u201d\u304c\u4f5c\u3089\u308c\u3066\u3044\u308b\u304b\u3092\u63c3\u3048\u308b<\/h3> <p>\u30b3\u30f3\u30c6\u30ca\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306f\u3001veth\u30da\u30a2\u3001Linux\u30d6\u30ea\u30c3\u30b8\u3001iptables\/nftables\u3001\u305d\u3057\u3066CNI\uff08Kubernetes\u7b49\uff09\u304c\u7d44\u307f\u5408\u308f\u3055\u3063\u3066\u901a\u4fe1\u7d4c\u8def\u3092\u4f5c\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u8d77\u3053\u308a\u3084\u3059\u3044\u306e\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u201c\u8aa4\u89e3\u306e\u9023\u9396\u201d\u3067\u3059\u3002<\/p> <ul> <li><p>\u30db\u30b9\u30c8\u5074\u306edefault\u306f\u6b63\u5e38 \u2192 \u3060\u304b\u3089\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f\u6b63\u5e38\u3001\u3068\u3044\u3046\u77ed\u7d61\u3002<\/p><\/li> <li><p>\u30b3\u30f3\u30c6\u30ca\u5185\u306edefault\u304c\u7121\u3044 \u2192 \u3067\u3082\u30db\u30b9\u30c8\u306b\u3042\u308b\u304b\u3089\u51fa\u3089\u308c\u308b\u306f\u305a\u3001\u3068\u3044\u3046\u601d\u3044\u8fbc\u307f\u3002<\/p><\/li> <li><p>CNI\u304c\u4f5c\u3063\u305f\u30eb\u30fc\u30eb\u3067SNAT\/\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u6210\u7acb\u3057\u3066\u3044\u306a\u3044 \u2192 \u3057\u304b\u3057\u78ba\u8a8d\u304c\u30db\u30b9\u30c8\u5074\u306eroute\u3060\u3051\u3067\u6b62\u307e\u308b\u3002<\/p><\/li> <\/ul> <p>\u5bfe\u7b56\u3092\u201c\u7a74\u57cb\u3081\u201d\u3068\u3057\u3066\u6210\u7acb\u3055\u305b\u308b\u306b\u306f\u3001\u3069\u306e\u30ec\u30a4\u30e4\u30fc\u3067\u51fa\u53e3\u3092\u4f5c\u3063\u3066\u3044\u308b\u304b\u3092\u63c3\u3048\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001Kubernetes\u3067\u306fPod\u5185\u306e\u7d4c\u8def\u3001Node\u5074\u306e\u8ee2\u9001\u3001CNI\u306e\u30eb\u30fc\u30eb\u3001\u30af\u30e9\u30b9\u30bf\u5916\u3078\u306e\u51fa\u53e3\uff08NAT\u3084\u4e0a\u4f4d\u30eb\u30fc\u30bf\uff09\u307e\u3067\u304c\u9023\u9396\u3057\u307e\u3059\u3002\u3069\u3053\u304b1\u7b87\u6240\u3060\u3051\u3092\u201c\u6b63\u3057\u3044\u306f\u305a\u201d\u3068\u6c7a\u3081\u308b\u3068\u3001\u8aa4\u3063\u305f\u65b9\u5411\u306e\u5909\u66f4\u304c\u5897\u3048\u3001\u53ce\u675f\u304c\u9045\u308c\u307e\u3059\u3002<\/p> <hr> <h3>\u4eee\u60f3\u5316\u306e\u524d\u63d0\uff1a\u30b2\u30b9\u30c8OS\u306e\u7d4c\u8def\u554f\u984c\u306b\u898b\u3048\u3066\u3001\u5b9f\u306f\u4e0a\u4f4d\u306e\u5236\u5fa1\u304c\u539f\u56e0\u306b\u306a\u308b\u3053\u3068\u3082\u3042\u308b<\/h3> <p>\u4eee\u60f3\u30de\u30b7\u30f3\uff08KVM\u3084Hyper-V\u7b49\uff09\u3067\u3082\u4f3c\u305f\u69cb\u56f3\u304c\u3042\u308a\u307e\u3059\u3002\u30b2\u30b9\u30c8OS\u5074\u3067\u306fENETUNREACH\u304c\u51fa\u3066\u3044\u3066\u3082\u3001\u4e0a\u4f4d\u306e\u4eee\u60f3\u30b9\u30a4\u30c3\u30c1\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b0\u30eb\u30fc\u30d7\u3001\u30eb\u30fc\u30c8\u30c6\u30fc\u30d6\u30eb\u3001\u3042\u308b\u3044\u306fVLAN\u8a2d\u8a08\u304c\u524d\u63d0\u3068\u5408\u3063\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u30b2\u30b9\u30c8\u306e\u8a2d\u5b9a\u3060\u3051\u3092\u89e6\u3063\u3066\u3082\u8edf\u7740\u9678\u3057\u307e\u305b\u3093\u3002\u9006\u306b\u3001\u30b2\u30b9\u30c8\u5074\u306e\u7d4c\u8def\u9078\u629e\u304c\u60f3\u5b9a\u3068\u30ba\u30ec\u3066\u304a\u308a\u3001\u9001\u4fe1\u5143\u3084\u51fa\u53e3\u304c\u5909\u308f\u3063\u3066\u623b\u308a\u7d4c\u8def\u3068\u6574\u5408\u3057\u306a\u3044\u30b1\u30fc\u30b9\u3082\u3042\u308a\u307e\u3059\u3002<\/p> <p>\u3053\u3053\u3067\u306f\u300c\u3069\u306e\u30ec\u30a4\u30e4\u30fc\u304c\u771f\u306e\u5883\u754c\u304b\u300d\u3092\u63c3\u3048\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u73fe\u5834\u3067\u306f\u3001\u62c5\u5f53\u9818\u57df\u304c\u5206\u304b\u308c\u3066\u3044\u308b\u307b\u3069\u793e\u5185\u8abf\u6574\u304c\u5fc5\u8981\u306b\u306a\u308a\u3001\u8b70\u8ad6\u304c\u904e\u71b1\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u3060\u304b\u3089\u3053\u305d\u3001\u4e8b\u5b9f\u3092\u7a4d\u307f\u4e0a\u3052\u3001\u3069\u3053\u307e\u3067\u304cOS\u306e\u8cac\u52d9\u3067\u3001\u3069\u3053\u304b\u3089\u304c\u4e0a\u4f4d\u306e\u8cac\u52d9\u304b\u3092\u8aac\u660e\u3067\u304d\u308b\u72b6\u614b\u306b\u3059\u308b\u3053\u3068\u304c\u3001\u88ab\u5bb3\u6700\u5c0f\u5316\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p> <hr> <h3>\u307e\u3068\u3081\uff1a\u30b3\u30f3\u30c6\u30ca\/\u4eee\u60f3\u5316\u306f\u201c\u78ba\u8a8d\u306e\u5bfe\u8c61\u201d\u3092\u5897\u3084\u3059\u3002\u4e00\u822c\u8ad6\u3060\u3051\u3067\u62bc\u3057\u5207\u3089\u306a\u3044<\/h3> <p>\u30b3\u30f3\u30c6\u30ca\u3084\u4eee\u60f3\u5316\u306f\u3001\u73fe\u5834\u306e\u751f\u7523\u6027\u3092\u4e0a\u3052\u308b\u4e00\u65b9\u3067\u3001\u5230\u9054\u4e0d\u80fd\u306e\u539f\u56e0\u70b9\u3092\u5897\u3084\u3057\u307e\u3059\u3002\u30db\u30b9\u30c8\u304c\u6b63\u3057\u3044\u306e\u304b\u3001\u540d\u524d\u7a7a\u9593\u304c\u6b63\u3057\u3044\u306e\u304b\u3001CNI\u304c\u6b63\u3057\u3044\u306e\u304b\u3001\u4e0a\u4f4d\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5236\u5fa1\u304c\u6b63\u3057\u3044\u306e\u304b\u3002\u3069\u3053\u304b\u3092\u60f3\u5b9a\u3067\u6c7a\u3081\u308b\u307b\u3069\u3001\u4e0d\u8981\u306a\u5909\u66f4\u304c\u5897\u3048\u3001\u53ce\u675f\u304c\u9045\u308c\u307e\u3059\u3002<\/p> <p>\u672c\u756a\u30fb\u76e3\u67fb\u30fb\u5171\u6709\u57fa\u76e4\u304c\u7d61\u3080\u3068\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5c0f\u3055\u306a\u5909\u66f4\u3067\u3082\u5f71\u97ff\u304c\u5927\u304d\u304f\u306a\u308a\u5f97\u307e\u3059\u3002\u500b\u5225\u6848\u4ef6\u3067\u306f\u3001\u30b7\u30b9\u30c6\u30e0\u69cb\u6210\u3084\u5951\u7d04\u524d\u63d0\u3067\u201c\u89e6\u3063\u3066\u3088\u3044\u7bc4\u56f2\u201d\u304c\u5909\u308f\u308b\u305f\u3081\u3001\u4e00\u822c\u8ad6\u3060\u3051\u3067\u5b89\u5168\u57df\u3092\u65ad\u5b9a\u3067\u304d\u307e\u305b\u3093\u3002\u8ff7\u3063\u305f\u3068\u304d\u306f\u3001<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u3078\u306e\u76f8\u8ac7\u30fb\u4f9d\u983c\u3092\u691c\u8a0e\u3057\u3001\u5f71\u97ff\u7bc4\u56f2\u3068\u6700\u5c0f\u5909\u66f4\u306e\u7dda\u5f15\u304d\u3092\u5148\u306b\u56fa\u3081\u308b\u65b9\u304c\u3001\u53ce\u675f\u3092\u65e9\u3081\u3084\u3059\u3044\u3067\u3059\u3002<\/p> <p>\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\uff1a<a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\">https:\/\/jouhou.main.jp\/?page_id=26983<\/a><\/p> <p>\u96fb\u8a71\uff1a<a href=\"tel:0120838831\">0120-838-831<\/a><\/p> \r\n\r\n <p>\u3000<\/p> <a id=\"sec09\"><\/a> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u7b2c9\u7ae0\uff1a\u6700\u5c0f\u5909\u66f4\u3067\u5fa9\u65e7\u3059\u308b\u2015\u2015\u4e00\u6642\u30eb\u30fc\u30c8\u2192\u6c38\u7d9a\u5316\u2192\u758e\u901a\u78ba\u8a8d\u3092\u5b89\u5168\u306b\u7a4d\u307f\u4e0a\u3052\u308b<\/h2> <p>ENETUNREACH(101)\u306e\u5fa9\u65e7\u306f\u3001\u6c17\u6301\u3061\u3068\u3057\u3066\u306f\u300c\u4e00\u6c17\u306b\u76f4\u3057\u305f\u3044\u300d\u65b9\u5411\u306b\u5bc4\u308a\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u30ec\u30ac\u30b7\u30fc\u3067\u6b62\u3081\u3089\u308c\u306a\u3044\u74b0\u5883\u307b\u3069\u3001\u5168\u4f53\u3092\u52d5\u304b\u3059\u307b\u3069\u5f71\u97ff\u7bc4\u56f2\u304c\u5e83\u304c\u308a\u3001\u8aac\u660e\u8cac\u4efb\u304c\u91cd\u304f\u306a\u308a\u307e\u3059\u3002\u3060\u304b\u3089\u3053\u305d\u3001\u3053\u3053\u3067\u306f\u201c\u6700\u5c0f\u5909\u66f4\u201d\u3092\u8ef8\u306b\u3001\u6bb5\u968e\u7684\u306b\u53ce\u675f\u3078\u5411\u304b\u3046\u624b\u9806\u306e\u8003\u3048\u65b9\u3092\u6574\u7406\u3057\u307e\u3059\u3002\u30dd\u30a4\u30f3\u30c8\u306f\u3001\u5fa9\u65e7\u3092\u6025\u3050\u307b\u3069\u300c\u4e00\u6642\u63aa\u7f6e\u300d\u3068\u300c\u6052\u4e45\u5316\u300d\u3092\u6df7\u305c\u306a\u3044\u3053\u3068\u3067\u3059\u3002\u6df7\u305c\u308b\u3068\u3001\u623b\u3063\u305f\u5f8c\u306b\u518d\u8d77\u52d5\u3084\u5207\u66ff\u3067\u518d\u71c3\u3057\u3001\u73fe\u5834\u306e\u6e29\u5ea6\u304c\u4e0a\u304c\u308a\u307e\u3059\u3002<\/p> <hr> <h3>\u6bb5\u968e1\uff1a\u4e00\u6642\u63aa\u7f6e\u3067\u201c\u7d4c\u8def\u304c\u6210\u7acb\u3059\u308b\u304b\u201d\u3092\u78ba\u304b\u3081\u308b\uff08\u539f\u56e0\u5c64\u306e\u78ba\u5b9a\uff09<\/h3> <p>\u307e\u305a\u306f\u3001\u4e89\u70b9\u304c\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u304b\u3081\u307e\u3059\u3002\u3053\u3053\u3067\u306e\u76ee\u7684\u306f\u3001\u6052\u4e45\u8a2d\u5b9a\u3092\u3044\u304d\u306a\u308a\u66f8\u304d\u63db\u3048\u308b\u3053\u3068\u3067\u306f\u306a\u304f\u3001\u300c\u7d4c\u8def\u304c\u6210\u7acb\u3059\u308c\u3070\u758e\u901a\u304c\u56de\u5fa9\u3059\u308b\u300d\u3053\u3068\u3092\u4e8b\u5b9f\u3068\u3057\u3066\u63b4\u3080\u3053\u3068\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001DNS\u3084FW\u3078\u98db\u3073\u706b\u3059\u308b\u30ce\u30a4\u30ba\u304c\u6e1b\u308a\u3001\u73fe\u5834\u3092\u30af\u30fc\u30eb\u30c0\u30a6\u30f3\u3055\u305b\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p> <p>\u4e00\u6642\u63aa\u7f6e\u306f\u3001\u5f71\u97ff\u7bc4\u56f2\u304c\u5c0f\u3055\u304f\u3001\u623b\u3057\u3084\u3059\u3044\u5f62\u3092\u512a\u5148\u3057\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001\u5bfe\u8c61\u3092\u7279\u5b9a\u5b9b\u5148\uff08\u307e\u305f\u306f\u7279\u5b9a\u30b5\u30d6\u30cd\u30c3\u30c8\uff09\u306b\u7d5e\u308a\u3001\u51fa\u53e3IF\u3068\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u306e\u524d\u63d0\u304c\u63c3\u3046\u304b\u3092\u78ba\u8a8d\u3057\u3001\u7d50\u679c\u304c\u51fa\u305f\u6642\u70b9\u3067\u201c\u4f55\u304c\u6b20\u3051\u3066\u3044\u305f\u304b\u201d\u3092\u8aac\u660e\u3067\u304d\u308b\u72b6\u614b\u306b\u3057\u307e\u3059\u3002\u3053\u3053\u3067\u7126\u3063\u3066\u5e83\u7bc4\u56f2\u3078\u9069\u7528\u3059\u308b\u3068\u3001\u5fa9\u65e7\u306f\u65e9\u304f\u898b\u3048\u3066\u3082\u3001\u5f8c\u304b\u3089\u793e\u5185\u8abf\u6574\u304c\u91cd\u304f\u306a\u308a\u304c\u3061\u3067\u3059\u3002<\/p> <hr> <h3>\u6bb5\u968e2\uff1a\u6052\u4e45\u5316\u306f\u201cNetworkManager\u306e\u6574\u5408\u201d\u3092\u6700\u512a\u5148\u306b\u3059\u308b\uff08\u623b\u308b\u969c\u5bb3\u306b\u6b6f\u6b62\u3081\uff09<\/h3> <p>\u4e00\u6642\u63aa\u7f6e\u3067\u9053\u7b4b\u304c\u898b\u3048\u305f\u3089\u3001\u6b21\u306f\u6052\u4e45\u5316\u3067\u3059\u3002\u305f\u3060\u3057\u6052\u4e45\u5316\u306f\u3001\u9069\u7528\u306e\u77ac\u9593\u306b\u5f71\u97ff\u304c\u51fa\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u627f\u8a8d\u30fb\u76e3\u67fb\u30fb\u904b\u7528\u624b\u9806\u306e\u524d\u63d0\u304c\u7d61\u3080\u74b0\u5883\u3067\u306f\u3001\u5909\u66f4\u5e45\u306e\u7dda\u5f15\u304d\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002Red Hat\u7cfb\u3067\u306fNetworkManager\u304c\u63a5\u7d9a\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3068\u3057\u3066\u8a2d\u5b9a\u3092\u4fdd\u6301\u3059\u308b\u3053\u3068\u304c\u591a\u3044\u305f\u3081\u3001\u6052\u4e45\u5316\u3067\u306f\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u306e\u6574\u5408\u3092\u63c3\u3048\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p> <p>\u3053\u3053\u3067\u306e\u201c\u3088\u304f\u3042\u308b\u5931\u6557\u201d\u306f\u3001\u30ab\u30fc\u30cd\u30eb\u306e\u7d4c\u8def\u8868\u3092\u6574\u3048\u305f\u3060\u3051\u3067\u5b89\u5fc3\u3057\u3066\u3057\u307e\u3044\u3001\u63a5\u7d9a\u306e\u518d\u78ba\u7acb\u3084\u518d\u8d77\u52d5\u3067\u5143\u306b\u623b\u308b\u3053\u3068\u3067\u3059\u3002\u623b\u308b\u969c\u5bb3\u306f\u3001\u73fe\u5834\u306e\u4fe1\u7528\u3092\u524a\u308a\u3001\u6b21\u306e\u969c\u5bb3\u5bfe\u5fdc\u3067\u8b70\u8ad6\u304c\u904e\u71b1\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u6052\u4e45\u5316\u3067\u306f\u3001\u300c\u3069\u306e\u63a5\u7d9a\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u304c\u3001\u3069\u306eIF\u3067\u3001\u3069\u306e\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\/\u30e1\u30c8\u30ea\u30c3\u30af\/\u30eb\u30fc\u30c8\u3092\u6301\u3064\u304b\u300d\u3092\u4e00\u8cab\u3055\u305b\u3001\u518d\u73fe\u6027\u306e\u3042\u308b\u5fa9\u65e7\u306b\u5bc4\u305b\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p> <hr> <h3>\u6bb5\u968e3\uff1a\u758e\u901a\u78ba\u8a8d\u306f\u201c\u5230\u9054\u3067\u304d\u305f\u201d\u3060\u3051\u3067\u7d42\u308f\u3089\u305b\u306a\u3044\uff08\u518d\u767a\u9632\u6b62\u306e\u6750\u6599\u3092\u6b8b\u3059\uff09<\/h3> <p>\u901a\u4fe1\u304c\u623b\u308b\u3068\u3001\u73fe\u5834\u306f\u4e00\u6c17\u306b\u5b89\u5835\u3057\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u3053\u3053\u3067\u7d42\u308f\u3089\u305b\u308b\u3068\u300c\u306a\u305c\u8d77\u304d\u305f\u304b\u300d\u300c\u306a\u305c\u623b\u3063\u305f\u304b\u300d\u304c\u66d6\u6627\u306b\u306a\u308a\u3001\u540c\u69d8\u306e\u969c\u5bb3\u304c\u518d\u71c3\u3057\u307e\u3059\u3002\u758e\u901a\u78ba\u8a8d\u3067\u306f\u3001\u5358\u306b\u5916\u3078\u51fa\u3089\u308c\u305f\u304b\u3060\u3051\u3067\u306a\u304f\u3001\u60f3\u5b9a\u3069\u304a\u308a\u306e\u51fa\u53e3IF\u3068\u9001\u4fe1\u5143IP\u3067\u51fa\u3066\u3044\u308b\u304b\u3001\u7279\u5b9a\u5b9b\u5148\u3060\u3051\u304c\u76f4\u3063\u3066\u3044\u306a\u3044\u7b87\u6240\u306f\u306a\u3044\u304b\u3001\u76e3\u8996\u3084\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u306a\u3069\u904b\u7528\u4e0a\u91cd\u8981\u306a\u7d4c\u8def\u304c\u5dfb\u304d\u8fbc\u307e\u308c\u3066\u3044\u306a\u3044\u304b\u3001\u3068\u3044\u3063\u305f\u89b3\u70b9\u3067\u201c\u5f71\u97ff\u7bc4\u56f2\u306e\u518d\u78ba\u8a8d\u201d\u3092\u884c\u3046\u3053\u3068\u304c\u3001\u7d50\u679c\u3068\u3057\u3066\u88ab\u5bb3\u6700\u5c0f\u5316\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <p>\u307e\u305f\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u554f\u984c\u306f\u3001\u4e0a\u4f4d\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08VPN\u3001\u30af\u30e9\u30a6\u30c9\u30eb\u30fc\u30c8\u3001\u62e0\u70b9\u9593\uff09\u3084\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5236\u5fa1\uff08ACL\u3001NAT\uff09\u3068\u9023\u9396\u3057\u3084\u3059\u3044\u305f\u3081\u3001\u5fa9\u65e7\u5f8c\u3082\u4e00\u5b9a\u671f\u9593\u306f\u89b3\u6e2c\u3092\u7d99\u7d9a\u3057\u3001\u518d\u767a\u306e\u5146\u5019\u3092\u65e9\u3081\u306b\u62fe\u3048\u308b\u72b6\u614b\u3092\u4f5c\u308b\u65b9\u304c\u3001\u73fe\u5834\u306e\u8ca0\u62c5\u304c\u8efd\u304f\u306a\u308a\u307e\u3059\u3002<\/p> <hr> <h3>\u307e\u3068\u3081\uff1a\u4e00\u822c\u8ad6\u3067\u62bc\u3057\u5207\u3089\u305a\u3001\u500b\u5225\u6848\u4ef6\u306e\u7dda\u5f15\u304d\u3092\u5148\u306b\u6c7a\u3081\u308b<\/h3> <p>ENETUNREACH(101)\u306f\u201c\u7d4c\u8def\u304c\u6210\u7acb\u3057\u3066\u3044\u306a\u3044\u201d\u3068\u3044\u3046\u70b9\u3067\u306f\u660e\u78ba\u3067\u3059\u304c\u3001\u306a\u305c\u6210\u7acb\u3057\u306a\u3044\u304b\u306f\u3001\u69cb\u6210\u3084\u904b\u7528\u306e\u7a4d\u307f\u91cd\u306d\u3067\u5909\u308f\u308a\u307e\u3059\u3002\u7279\u306b\u3001\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u3001\u30b3\u30f3\u30c6\u30ca\u3001\u672c\u756a\u30c7\u30fc\u30bf\u3001\u76e3\u67fb\u8981\u4ef6\u304c\u7d61\u3080\u74b0\u5883\u3067\u306f\u3001\u6700\u5c0f\u5909\u66f4\u306e\u7dda\u5f15\u304d\u304c\u96e3\u3057\u304f\u3001\u4e00\u822c\u8ad6\u3060\u3051\u3067\u5b89\u5168\u57df\u3092\u65ad\u8a00\u3067\u304d\u307e\u305b\u3093\u3002\u5fa9\u65e7\u3092\u6025\u3050\u307b\u3069\u3001\u5909\u66f4\u306e\u8aac\u660e\u8cac\u4efb\u304c\u91cd\u304f\u306a\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<\/p> <p>\u3060\u304b\u3089\u3053\u305d\u3001\u7d42\u76e4\u3067\u306f\u300c\u4e00\u822c\u8ad6\u306e\u9650\u754c\u300d\u3092\u7d20\u76f4\u306b\u8a8d\u3081\u3001\u500b\u5225\u6848\u4ef6\u3067\u306f\u5c02\u9580\u5bb6\u306e\u8996\u70b9\u3067\u5f71\u97ff\u7bc4\u56f2\u3068\u5fa9\u65e7\u8a08\u753b\u3092\u7d44\u307f\u7acb\u3066\u308b\u6d41\u308c\u304c\u81ea\u7136\u3067\u3059\u3002\u8ff7\u3044\u304c\u3042\u308b\u5834\u5408\u306f\u3001<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u3078\u306e\u76f8\u8ac7\u30fb\u4f9d\u983c\u3092\u691c\u8a0e\u3057\u3001\u53ce\u675f\u3078\u5411\u304b\u3046\u6700\u77ed\u30eb\u30fc\u30c8\u3092\u8a2d\u8a08\u3059\u308b\u65b9\u304c\u3001\u73fe\u5834\u306e\u8ca0\u62c5\u3092\u4e0b\u3052\u3084\u3059\u3044\u3067\u3059\u3002<\/p> <p>\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\uff1a<a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\">https:\/\/jouhou.main.jp\/?page_id=26983<\/a><\/p> <p>\u96fb\u8a71\uff1a<a href=\"tel:0120838831\">0120-838-831<\/a><\/p> \r\n\r\n\r\n\r\n<p>\u3000<\/p> <a id=\"sec10\"><\/a> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u7b2c10\u7ae0\uff1a\u518d\u767a\u3092\u6e1b\u3089\u3059\u201c\u904b\u7528\u306e\u578b\u201d\u2015\u2015\u8aac\u660e\u8cac\u4efb\u30fb\u5909\u66f4\u7ba1\u7406\u30fb\u76e3\u8996\u8a2d\u8a08\u3067\u53ce\u675f\u3092\u65e9\u3081\u308b<\/h2> <p>ENETUNREACH(101)\u306e\u5bfe\u5fdc\u304c\u82e6\u3057\u304f\u306a\u308b\u306e\u306f\u3001\u6280\u8853\u7684\u306a\u96e3\u3057\u3055\u3060\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u300c\u306a\u305c\u8d77\u304d\u305f\u306e\u304b\u300d\u300c\u8ab0\u304c\u4f55\u3092\u5909\u3048\u305f\u306e\u304b\u300d\u300c\u5f71\u97ff\u7bc4\u56f2\u306f\u3069\u3053\u307e\u3067\u304b\u300d\u300c\u518d\u767a\u3092\u3069\u3046\u9632\u3050\u306e\u304b\u300d\u3092\u77ed\u3044\u6642\u9593\u3067\u8aac\u660e\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u70b9\u304c\u3001\u73fe\u5834\u306e\u8ca0\u62c5\u3092\u5897\u3084\u3057\u307e\u3059\u3002\u7279\u306b\u30ec\u30ac\u30b7\u30fc\u3067\u6b62\u3081\u3089\u308c\u306a\u3044\u74b0\u5883\u3067\u306f\u3001\u201c\u3044\u307e\u76f4\u3059\u201d\u3068\u201c\u6b21\u306b\u5099\u3048\u308b\u201d\u3092\u540c\u6642\u306b\u6c42\u3081\u3089\u308c\u3001\u8b70\u8ad6\u304c\u904e\u71b1\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u6280\u8853\u306e\u8a71\u3092\u904b\u7528\u3078\u63a5\u7d9a\u3057\u3001\u73fe\u5834\u304c\u8edf\u7740\u9678\u3057\u3084\u3059\u3044\u578b\u3092\u6574\u7406\u3057\u307e\u3059\u3002<\/p> <hr> <h3>1) \u8aac\u660e\u8cac\u4efb\u3092\u8efd\u304f\u3059\u308b\uff1a\u4e8b\u5b9f\u2192\u4eee\u8aac\u2192\u6700\u5c0f\u5909\u66f4\u2192\u7d50\u679c\u306e\u9806\u3067\u56fa\u5b9a\u3059\u308b<\/h3> <p>\u4e0a\u53f8\u3084\u5f79\u54e1\u3078\u306e\u8aac\u660e\u304c\u96e3\u3057\u3044\u306e\u306f\u3001\u300c\u4e8b\u5b9f\u300d\u304c\u63c3\u3063\u3066\u3044\u306a\u3044\u6bb5\u968e\u3067\u539f\u56e0\u306e\u65ad\u5b9a\u3092\u6c42\u3081\u3089\u308c\u308b\u304b\u3089\u3067\u3059\u3002\u3053\u3053\u3067\u6709\u52b9\u306a\u306e\u306f\u3001\u65ad\u5b9a\u3067\u306f\u306a\u304f\u3001\u624b\u9806\u3068\u3057\u3066\u8aac\u660e\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u6b21\u306e\u4e26\u3073\u3092\u56fa\u5b9a\u3059\u308b\u3068\u3001\u77ed\u6642\u9593\u3067\u3082\u7d0d\u5f97\u304c\u5f97\u3089\u308c\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p> <ul> <li><p><strong>\u4e8b\u5b9f<\/strong>\uff1a\u3069\u306e\u5b9b\u5148\u304c\u4e0d\u9054\u304b\uff0f\u3069\u306e\u7d4c\u8def\u304c\u9078\u3070\u308c\u3066\u3044\u308b\u304b\uff08ip route get\u7b49\uff09<\/p><\/li> <li><p><strong>\u4eee\u8aac<\/strong>\uff1a\u7d4c\u8def\u6b20\u843d\u3001\u30e1\u30c8\u30ea\u30c3\u30af\u9006\u8ee2\u3001\u5225\u30c6\u30fc\u30d6\u30eb\u53c2\u7167\u3001\u540d\u524d\u7a7a\u9593\u5dee\u7570\u306a\u3069<\/p><\/li> <li><p><strong>\u6700\u5c0f\u5909\u66f4<\/strong>\uff1a\u5bfe\u8c61\u3092\u7d5e\u3063\u305f\u4e00\u6642\u63aa\u7f6e\u3067\u201c\u6210\u7acb\u3059\u308b\u304b\u201d\u3092\u78ba\u8a8d<\/p><\/li> <li><p><strong>\u7d50\u679c<\/strong>\uff1a\u60f3\u5b9a\u51fa\u53e3\u3067\u758e\u901a\u304c\u623b\u3063\u305f\u304b\uff0f\u5f71\u97ff\u7bc4\u56f2\u306b\u526f\u4f5c\u7528\u304c\u7121\u3044\u304b<\/p><\/li> <\/ul> <p>\u3053\u306e\u578b\u304c\u3042\u308b\u3068\u3001\u300c\u76f4\u308b\u304b\u3069\u3046\u304b\u300d\u3060\u3051\u3067\u306a\u304f\u300c\u3069\u306e\u8ad6\u70b9\u3092\u691c\u8a3c\u3057\u305f\u304b\u300d\u3092\u8aac\u660e\u3067\u304d\u307e\u3059\u3002\u7d50\u679c\u3068\u3057\u3066\u3001\u73fe\u5834\u304c\u5b64\u7acb\u3057\u306b\u304f\u304f\u306a\u308a\u3001\u793e\u5185\u8abf\u6574\u304c\u77ed\u304f\u306a\u308a\u307e\u3059\u3002<\/p> <hr> <h3>2) \u5909\u66f4\u7ba1\u7406\u3067\u6b6f\u6b62\u3081\u3092\u304b\u3051\u308b\uff1a\u9060\u9694\u7d4c\u8def\u30fb\u76e3\u8996\u30fb\u627f\u8a8d\u306e3\u70b9\u3092\u5148\u306b\u5b88\u308b<\/h3> <p>\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3084\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u306e\u5909\u66f4\u306f\u3001\u5fa9\u65e7\u306e\u305f\u3081\u306b\u5fc5\u8981\u306a\u3053\u3068\u304c\u3042\u308b\u4e00\u65b9\u3001\u9060\u9694\u7ba1\u7406\u7d4c\u8def\u3084\u76e3\u8996\u7d4c\u8def\u3092\u5dfb\u304d\u8fbc\u3080\u3068\u3001\u5fa9\u65e7\u305d\u306e\u3082\u306e\u304c\u96e3\u3057\u304f\u306a\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u91cd\u8981\u306a\u306e\u306f\u3001\u5909\u66f4\u306e\u5927\u5c0f\u3067\u306f\u306a\u304f\u3001<strong>\u5b88\u308b\u3079\u304d\u7d4c\u8def\u3092\u5148\u306b\u7279\u5b9a\u3057\u3066\u4fdd\u8b77\u3059\u308b<\/strong>\u3053\u3068\u3067\u3059\u3002\u4f8b\u3048\u3070\u6b21\u306e3\u70b9\u304c\u6700\u4f4e\u9650\u306e\u7dda\u5f15\u304d\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <table style=\"border-collapse:collapse; width:100%; max-width:100%; box-sizing:border-box;\"> <tr> <th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u5b88\u308b\u5bfe\u8c61<\/th> <th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u306a\u305c\u91cd\u8981\u304b<\/th> <th style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; text-align:left;\">\u73fe\u5834\u3067\u306e\u78ba\u8a8d\u89b3\u70b9<\/th> <\/tr> <tr> <td style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u9060\u9694\u7ba1\u7406\uff08SSH\/\u8e0f\u307f\u53f0\/\u7ba1\u7406NW\uff09<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u5207\u308c\u308b\u3068\u5fa9\u65e7\u304c\u73fe\u5730\u4f5c\u696d\u5316\u3057\u3001\u53ce\u675f\u304c\u9045\u308c\u308b<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u51fa\u53e3IF\u306e\u5909\u66f4\u3067\u9001\u4fe1\u5143IP\u304c\u5909\u308f\u3089\u306a\u3044\u304b\u3001\u7ba1\u7406\u7cfb\u306e\u7d4c\u8def\u304c\u7dad\u6301\u3055\u308c\u308b\u304b<\/td> <\/tr> <tr> <td style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u76e3\u8996\/\u30ed\u30b0\uff08\u76e3\u8996\u30b5\u30fc\u30d0\u3001SIEM\u3001\u6642\u523b\u540c\u671f\uff09<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u5fa9\u65e7\u4e2d\u307b\u3069\u53ef\u8996\u5316\u304c\u5fc5\u8981\u3002\u898b\u3048\u306a\u3044\u3068\u5224\u65ad\u304c\u920d\u308b<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u76e3\u8996\u7d4c\u8def\u304c\u5225NW\u306a\u3089\u7279\u306b\u3001\u7d4c\u8def\u306e\u512a\u5148\u5ea6\u3084\u30dd\u30ea\u30b7\u30fc\u306e\u5f71\u97ff\u3092\u53d7\u3051\u306a\u3044\u304b<\/td> <\/tr> <tr> <td style=\"background:#eeeeee; border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u627f\u8a8d\u3068\u30ed\u30fc\u30eb\u30d0\u30c3\u30af\uff08\u623b\u3057\u65b9\uff09<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u5fa9\u65e7\u5f8c\u306e\u8aac\u660e\u3068\u518d\u767a\u9632\u6b62\u306b\u76f4\u7d50\u3059\u308b<\/td> <td style=\"border:1px solid #cccccc; padding:8px; vertical-align:top;\">\u4e00\u6642\u63aa\u7f6e\u3068\u6052\u4e45\u5316\u3092\u6df7\u305c\u306a\u3044\u3002\u5dee\u5206\u304c\u8aac\u660e\u3067\u304d\u308b\u7c92\u5ea6\u306b\u3059\u308b<\/td> <\/tr> <\/table> <p>\u3053\u306e3\u70b9\u3092\u5148\u306b\u5b88\u308b\u3060\u3051\u3067\u3001\u5909\u66f4\u304c\u5fc5\u8981\u306a\u72b6\u6cc1\u3067\u3082\u201c\u5834\u3092\u6574\u3048\u305f\u307e\u307e\u201d\u5fa9\u65e7\u3078\u5bc4\u305b\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p> <hr> <h3>3) \u76e3\u8996\u8a2d\u8a08\u3067\u518d\u71c3\u3092\u6e1b\u3089\u3059\uff1a\u5230\u9054\u6027\u3060\u3051\u3067\u306a\u304f\u201c\u51fa\u53e3\u306e\u5909\u5316\u201d\u3092\u6349\u3048\u308b<\/h3> <p>\u518d\u767a\u304c\u591a\u3044\u74b0\u5883\u3067\u306f\u3001\u300cPing\u304c\u901a\u308b\u304b\u300d\u3060\u3051\u306e\u76e3\u8996\u3067\u306f\u8db3\u308a\u307e\u305b\u3093\u3002ENETUNREACH\u306e\u80cc\u666f\u306b\u306f\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u306e\u5165\u308c\u66ff\u308f\u308a\u3001\u30e1\u30c8\u30ea\u30c3\u30af\u9006\u8ee2\u3001\u53c2\u7167\u30c6\u30fc\u30d6\u30eb\u306e\u5909\u5316\u3001\u540d\u524d\u7a7a\u9593\u5074\u306e\u5909\u5316\u306a\u3069\u3001\u201c\u51fa\u53e3\u306e\u5909\u5316\u201d\u304c\u542b\u307e\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u304b\u3089\u3067\u3059\u3002\u904b\u7528\u3068\u3057\u3066\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u89b3\u6e2c\u3092\u8ffd\u52a0\u3059\u308b\u3068\u3001\u73fe\u5834\u306e\u8ca0\u62c5\u304c\u8efd\u304f\u306a\u308a\u307e\u3059\u3002<\/p> <ul> <li><p>\u5916\u5f62\u76e3\u8996\uff08\u758e\u901a\uff09\u306b\u52a0\u3048\u3066\u3001<strong>ip route get\u76f8\u5f53\u306e\u51fa\u53e3\u60c5\u5831<\/strong>\u3092\u5b9a\u671f\u7684\u306b\u8a18\u9332\u3057\u3001\u5909\u5316\u3092\u691c\u77e5\u3059\u308b\u3002<\/p><\/li> <li><p>NetworkManager\u306e\u63a5\u7d9a\u5207\u66ff\u3084DHCP\u66f4\u65b0\u306e\u75d5\u8de1\u3092\u30ed\u30b0\u3068\u3057\u3066\u8ffd\u3044\u3084\u3059\u304f\u3057\u3066\u304a\u304d\u3001\u969c\u5bb3\u6642\u306b\u8aac\u660e\u3067\u304d\u308b\u6750\u6599\u3092\u6b8b\u3059\u3002<\/p><\/li> <li><p>\u30b3\u30f3\u30c6\u30ca\/\u4eee\u60f3\u5316\u304c\u7d61\u3080\u5834\u5408\u306f\u3001\u30db\u30b9\u30c8\u3068\u540d\u524d\u7a7a\u9593\uff08\u3042\u308b\u3044\u306fCNI\uff09\u3092\u5206\u3051\u3066\u76e3\u8996\u3057\u3001\u201c\u3069\u306e\u4e16\u754c\u3067\u5d29\u308c\u305f\u304b\u201d\u3092\u65e9\u304f\u5224\u5b9a\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3002<\/p><\/li> <\/ul> <p>\u3053\u308c\u3089\u306f\u6d3e\u624b\u306a\u5bfe\u7b56\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u8b70\u8ad6\u304c\u904e\u71b1\u3057\u3084\u3059\u3044\u5c40\u9762\u3067\u201c\u4e8b\u5b9f\u201d\u3092\u63c3\u3048\u3084\u3059\u304f\u3057\u3001\u53ce\u675f\u3092\u65e9\u3081\u307e\u3059\u3002<\/p> <hr> <h3>4) \u4e00\u822c\u8ad6\u306e\u9650\u754c\u3092\u5148\u306b\u7f6e\u304f\uff1a\u500b\u5225\u6848\u4ef6\u306e\u7dda\u5f15\u304d\u304c\u6210\u679c\u3092\u5de6\u53f3\u3059\u308b<\/h3> <p>ENETUNREACH(101)\u306f\u3001\u8868\u9762\u4e0a\u306f\u540c\u3058\u3067\u3082\u3001\u5b9f\u969b\u306b\u306f\u69cb\u6210\u3068\u904b\u7528\u306e\u524d\u63d0\u304c\u9055\u3046\u3060\u3051\u3067\u5bfe\u51e6\u306e\u5b89\u5168\u57df\u304c\u5909\u308f\u308a\u307e\u3059\u3002\u62e0\u70b9\u9593VPN\u3001\u30af\u30e9\u30a6\u30c9\u30eb\u30fc\u30c8\u3001\u5197\u9577\u69cb\u6210\u3001\u76e3\u67fb\u8981\u4ef6\u3001\u5171\u6709\u57fa\u76e4\u3001\u30b3\u30f3\u30c6\u30ca\u3001\u8907\u6570NIC\u3001\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u7d61\u3080\u3068\u3001\u6700\u5c0f\u5909\u66f4\u306e\u7dda\u5f15\u304d\u304c\u96e3\u3057\u304f\u306a\u308a\u3001\u4e00\u822c\u8ad6\u3060\u3051\u3067\u306f\u201c\u3053\u306e\u64cd\u4f5c\u306a\u3089\u5b89\u5168\u201d\u3068\u8a00\u3044\u5207\u308c\u307e\u305b\u3093\u3002<\/p> <p>\u3060\u304b\u3089\u3053\u305d\u7d42\u76e4\u3067\u306f\u3001\u300c\u4e00\u822c\u8ad6\u3067\u62bc\u3057\u5207\u308b\u307b\u3069\u30ea\u30b9\u30af\u304c\u4e0a\u304c\u308b\u300d\u3053\u3068\u3092\u81ea\u7136\u306b\u5171\u6709\u3057\u3001\u500b\u5225\u6848\u4ef6\u3067\u306f\u5c02\u9580\u5bb6\u306e\u8996\u70b9\u3067\u5f71\u97ff\u7bc4\u56f2\u3092\u898b\u7a4d\u3082\u3063\u3066\u53ce\u675f\u3078\u5c0e\u304f\u6d41\u308c\u304c\u73fe\u5b9f\u7684\u3067\u3059\u3002\u8ff7\u3044\u304c\u3042\u308b\u72b6\u6cc1\u307b\u3069\u3001<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u3078\u306e\u76f8\u8ac7\u30fb\u4f9d\u983c\u3092\u691c\u8a0e\u3059\u308b\u3053\u3068\u304c\u3001\u7d50\u679c\u3068\u3057\u3066\u65e9\u3044\u6c88\u9759\u5316\u3068\u88ab\u5bb3\u6700\u5c0f\u5316\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p> <p>\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\uff1a<a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\">https:\/\/jouhou.main.jp\/?page_id=26983<\/a><\/p> <p>\u96fb\u8a71\uff1a<a href=\"tel:0120838831\">0120-838-831<\/a><\/p> \r\n\r\n <p>\u3000<\/p> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u73fe\u5728\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u8a00\u8a9e\u5404\u7a2e\uff1aENETUNREACH(101)\u3092\u201c\u969c\u5bb3\u306b\u3057\u306a\u3044\u201d\u305f\u3081\u306e\u5b9f\u88c5\u4e0a\u306e\u6ce8\u610f\u70b9<\/h2> <p>\u5230\u9054\u4e0d\u80fd\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u554f\u984c\u306b\u898b\u3048\u307e\u3059\u304c\u3001\u30a2\u30d7\u30ea\u306e\u5b9f\u88c5\u6b21\u7b2c\u3067\u3001\u73fe\u5834\u306e\u8ca0\u62c5\u304c\u5927\u304d\u304f\u5909\u308f\u308a\u307e\u3059\u3002\u77ed\u6642\u9593\u3067\u53ce\u675f\u3055\u305b\u308b\u306b\u306f\u3001\u30a2\u30d7\u30ea\u5074\u304c\u300c\u4f55\u304c\u8d77\u304d\u305f\u304b\u300d\u3092\u8aac\u660e\u3067\u304d\u308b\u60c5\u5831\u3092\u6b8b\u3057\u3001\u904e\u5270\u306a\u518d\u8a66\u884c\u3067\u72b6\u6cc1\u3092\u60aa\u5316\u3055\u305b\u306a\u3044\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u4e3b\u8981\u8a00\u8a9e\u30fb\u5b9f\u884c\u74b0\u5883\u3067\u5171\u901a\u3057\u3066\u8d77\u304d\u3084\u3059\u3044\u6ce8\u610f\u70b9\u3092\u6574\u7406\u3057\u307e\u3059\u3002<\/p> <hr> <h3>\u5171\u901a\u306e\u6ce8\u610f\u70b9\uff08\u8a00\u8a9e\u3092\u554f\u308f\u305a\uff09<\/h3> <ul> <li><p><strong>\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3092\u660e\u793a<\/strong>\uff1a\u30c7\u30d5\u30a9\u30eb\u30c8\u4efb\u305b\u306b\u3059\u308b\u3068\u3001\u5f85\u3061\u7d9a\u3051\u3066\u5fa9\u65e7\u5224\u65ad\u304c\u9045\u308c\u308b\u3002\u63a5\u7d9a\u30fb\u8aad\u307f\u53d6\u308a\u30fb\u5168\u4f53\u306e\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3092\u5206\u3051\u3066\u8a2d\u8a08\u3059\u308b\u3002<\/p><\/li> <li><p><strong>\u518d\u8a66\u884c\u306f\u201c\u63a7\u3048\u3081\u201d\u306b<\/strong>\uff1a\u77ed\u3044\u9593\u9694\u3067\u5927\u91cf\u518d\u8a66\u884c\u3059\u308b\u3068\u3001\u969c\u5bb3\u6642\u306b\u8ca0\u8377\u3092\u4e0a\u3052\u3001\u53ce\u675f\u3092\u9045\u3089\u305b\u308b\u3002\u6307\u6570\u30d0\u30c3\u30af\u30aa\u30d5\u3068\u4e0a\u9650\u3092\u8a2d\u3051\u3001\u540c\u6642\u5b9f\u884c\u6570\u3082\u6291\u3048\u308b\u3002<\/p><\/li> <li><p><strong>\u30a8\u30e9\u30fc\u306e\u5206\u985e<\/strong>\uff1a\u540d\u524d\u89e3\u6c7a\u3001\u63a5\u7d9a\u62d2\u5426\u3001\u7d4c\u8def\u4e0d\u6210\u7acb\u3001\u8a3c\u660e\u66f8\u3001\u30d7\u30ed\u30ad\u30b7\u306a\u3069\u3092\u6df7\u305c\u306a\u3044\u3002ENETUNREACH\u76f8\u5f53\u306f\u201c\u7d4c\u8def\u201d\u3068\u3057\u3066\u6271\u3044\u3001\u5207\u308a\u5206\u3051\u3092\u52a9\u3051\u308b\u3002<\/p><\/li> <li><p><strong>\u89b3\u6e2c\u60c5\u5831\u3092\u6b8b\u3059<\/strong>\uff1a\u5b9b\u5148\uff08IP\/\u30db\u30b9\u30c8\u540d\uff09\u3001\u89e3\u6c7a\u5f8cIP\u3001\u4f7f\u7528\u30d7\u30ed\u30ad\u30b7\u3001\u30ed\u30fc\u30ab\u30ebIP\u3001\u63a5\u7d9a\u5148\u30dd\u30fc\u30c8\u3001\u518d\u8a66\u884c\u56de\u6570\u3001\u767a\u751f\u6642\u523b\u3092\u30ed\u30b0\u306b\u6b8b\u3059\u3002<\/p><\/li> <li><p><strong>IPv4\/IPv6\u306e\u53d6\u308a\u6271\u3044\u3092\u660e\u78ba\u306b<\/strong>\uff1a\u74b0\u5883\u306b\u3088\u3063\u3066\u306fIPv6\u512a\u5148\u3084\u30c7\u30e5\u30a2\u30eb\u30b9\u30bf\u30c3\u30af\u304c\u7d61\u307f\u3001\u5230\u9054\u4e0d\u80fd\u304c\u504f\u3063\u3066\u898b\u3048\u308b\u3002\u3069\u3061\u3089\u3092\u4f7f\u3063\u305f\u304b\u3092\u30ed\u30b0\u306b\u6b8b\u3059\u3002<\/p><\/li> <\/ul> <hr> <h3>Shell\uff08bash\u7b49\uff09<\/h3> <ul> <li><p>\u5916\u90e8\u30b3\u30de\u30f3\u30c9\uff08curl\/wget\u7b49\uff09\u306f\u74b0\u5883\u5909\u6570\uff08http_proxy\/https_proxy\/no_proxy\uff09\u306e\u5f71\u97ff\u3092\u5f37\u304f\u53d7\u3051\u3001\u5b9f\u884c\u30e6\u30fc\u30b6\u30fc\u3054\u3068\u306b\u5dee\u304c\u51fa\u3084\u3059\u3044\u3002<\/p><\/li> <li><p>\u969c\u5bb3\u6642\u306b\u30eb\u30fc\u30d7\u518d\u8a66\u884c\u3092\u7121\u5236\u9650\u306b\u3059\u308b\u3068\u3001\u30ed\u30b0\u80a5\u5927\u3084\u8ca0\u8377\u5897\u3067\u30c0\u30e1\u30fc\u30b8\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u304c\u96e3\u3057\u304f\u306a\u308b\u3002\u4e0a\u9650\u3068\u5f85\u6a5f\u3092\u5fc5\u305a\u8a2d\u3051\u308b\u3002<\/p><\/li> <li><p>\u540d\u524d\u89e3\u6c7a\u3068\u5230\u9054\u4e0d\u80fd\u304c\u6df7\u3056\u3089\u306a\u3044\u3088\u3046\u3001\u30db\u30b9\u30c8\u540d\u3068IP\u306e\u4e21\u65b9\u3067\u5931\u6557\u3057\u305f\u304b\u3092\u5207\u308a\u5206\u3051\u3066\u8a18\u9332\u3059\u308b\u3002<\/p><\/li> <\/ul> <hr> <h3>Python<\/h3> <ul> <li><p>requests\u7b49\u306f\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3092\u660e\u793a\u3057\u306a\u3044\u3068\u201c\u5f85\u3061\u7d9a\u3051\u308b\u201d\u8a2d\u8a08\u306b\u306a\u308a\u3084\u3059\u3044\u3002\u63a5\u7d9a\u30fb\u8aad\u307f\u53d6\u308a\u3092\u5206\u3051\u305f\u8a2d\u5b9a\u3092\u524d\u63d0\u306b\u3059\u308b\u3002<\/p><\/li> <li><p>\u30bb\u30c3\u30b7\u30e7\u30f3\u518d\u5229\u7528\uff08\u63a5\u7d9a\u30d7\u30fc\u30eb\uff09\u3067\u3001\u969c\u5bb3\u6642\u306b\u53e4\u3044\u63a5\u7d9a\u304c\u6b8b\u308a\u3001\u30a8\u30e9\u30fc\u306e\u898b\u3048\u65b9\u304c\u63fa\u308c\u308b\u3053\u3068\u304c\u3042\u308b\u3002\u5931\u6557\u6642\u306e\u518d\u4f5c\u6210\u3084\u56de\u6570\u5236\u9650\u3092\u8a2d\u8a08\u3059\u308b\u3002<\/p><\/li> <li><p>\u4f8b\u5916\u3092\u63e1\u308a\u3064\u3076\u3059\u3068\u73fe\u5834\u306e\u5207\u308a\u5206\u3051\u304c\u9032\u307e\u306a\u3044\u3002\u4f8b\u5916\u578b\u3068OS\u30a8\u30e9\u30fc\u756a\u53f7\u76f8\u5f53\u3092\u30ed\u30b0\u3078\u6b8b\u3059\u3002<\/p><\/li> <\/ul> <hr> <h3>Node.js\uff08JavaScript\/TypeScript\uff09<\/h3> <ul> <li><p>\u975e\u540c\u671f\u51e6\u7406\u306e\u540c\u6642\u5b9f\u884c\u3092\u4e0a\u3052\u904e\u304e\u308b\u3068\u3001\u969c\u5bb3\u6642\u306b\u518d\u8a66\u884c\u304c\u96ea\u5d29\u306e\u3088\u3046\u306b\u5897\u3048\u3066\u53ce\u675f\u304c\u9045\u308c\u308b\u3002\u30ad\u30e5\u30fc\u3084\u540c\u6642\u5b9f\u884c\u6570\u306e\u4e0a\u9650\u304c\u91cd\u8981\u3002<\/p><\/li> <li><p>DNS\u306e\u632f\u308b\u821e\u3044\uff08\u30ad\u30e3\u30c3\u30b7\u30e5\u3084\u512a\u5148\uff09\u3084IPv6\u306e\u6271\u3044\u3067\u3001\u74b0\u5883\u5dee\u304c\u51fa\u308b\u3002\u3069\u306e\u30a2\u30c9\u30ec\u30b9\u306b\u63a5\u7d9a\u3057\u305f\u304b\u306e\u30ed\u30b0\u304c\u6709\u52b9\u3002<\/p><\/li> <li><p>\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u304c\u30e9\u30a4\u30d6\u30e9\u30ea\u4f9d\u5b58\u306b\u306a\u308a\u3084\u3059\u3044\u3002\u63a5\u7d9a\u30fb\u5fdc\u7b54\u306e\u4e0a\u9650\u3092\u5b9f\u88c5\u5074\u3067\u660e\u78ba\u306b\u7d71\u4e00\u3059\u308b\u3002<\/p><\/li> <\/ul> <hr> <h3>Go<\/h3> <ul> <li><p>context\u306e\u671f\u9650\uff08Deadline\/Timeout\uff09\u3092\u8a2d\u8a08\u3057\u306a\u3044\u3068\u3001\u5f85\u3061\u7d9a\u3051\u308b\u7d4c\u8def\u304c\u6b8b\u308b\u3002\u5168\u3066\u306e\u5916\u90e8\u901a\u4fe1\u306bcontext\u3092\u901a\u3059\u904b\u7528\u304c\u518d\u767a\u9632\u6b62\u306b\u52b9\u304f\u3002<\/p><\/li> <li><p>http.Client\u306e\u4f7f\u3044\u56de\u3057\u3068Transport\u8a2d\u5b9a\uff08\u63a5\u7d9a\u30d7\u30fc\u30eb\u3001Keep-Alive\u3001DNS\u66f4\u65b0\uff09\u306e\u5f71\u97ff\u3067\u3001\u969c\u5bb3\u6642\u306b\u6319\u52d5\u304c\u504f\u308b\u3053\u3068\u304c\u3042\u308b\u3002<\/p><\/li> <li><p>\u30a8\u30e9\u30fc\u3092\u6587\u5b57\u5217\u6bd4\u8f03\u3067\u5224\u5b9a\u3059\u308b\u3068\u74b0\u5883\u5dee\u3067\u7834\u7dbb\u3057\u3084\u3059\u3044\u3002\u5206\u985e\uff08timeout\u3001temporary\u3001net.Error\u7b49\uff09\u3067\u6271\u3046\u3002<\/p><\/li> <\/ul> <hr> <h3>Java\uff08JVM\u7cfb\uff09<\/h3> <ul> <li><p>DNS\u30ad\u30e3\u30c3\u30b7\u30e5\uff08TTL\uff09\u306e\u6271\u3044\u304c\u554f\u984c\u306e\u898b\u3048\u65b9\u3092\u5909\u3048\u308b\u3002\u540d\u524d\u89e3\u6c7a\u306e\u5909\u5316\u304c\u8ffd\u3048\u306a\u3044\u3068\u3001\u5230\u9054\u4e0d\u80fd\u304c\u65ad\u7d9a\u7684\u306b\u898b\u3048\u308b\u3002<\/p><\/li> <li><p>\u63a5\u7d9a\u30d7\u30fc\u30eb\uff08HTTP\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3001JDBC\u7b49\uff09\u3068\u518d\u8a66\u884c\u304c\u7d61\u3080\u3068\u3001\u969c\u5bb3\u6642\u306b\u540c\u6642\u591a\u767a\u3057\u3084\u3059\u3044\u3002\u4e0a\u9650\u3068\u30d0\u30c3\u30af\u30aa\u30d5\u3092\u63c3\u3048\u308b\u3002<\/p><\/li> <li><p>\u4f8b\u5916\u30c1\u30a7\u30fc\u30f3\u306b\u539f\u56e0\u304c\u96a0\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3002\u6839\u672c\u539f\u56e0\uff08Caused by\uff09\u3092\u30ed\u30b0\u306b\u6b8b\u3059\u904b\u7528\u304c\u91cd\u8981\u3002<\/p><\/li> <\/ul> <hr> <h3>.NET\uff08C#\u7b49\uff09<\/h3> <ul> <li><p>HttpClient\u306e\u4f7f\u3044\u65b9\uff08\u751f\u6210\u983b\u5ea6\u3084\u30cf\u30f3\u30c9\u30e9\u8a2d\u5b9a\uff09\u3067\u3001\u969c\u5bb3\u6642\u306b\u30bd\u30b1\u30c3\u30c8\u67af\u6e07\u3084\u518d\u8a66\u884c\u306e\u504f\u308a\u304c\u51fa\u3084\u3059\u3044\u3002\u904b\u7528\u306b\u5408\u3046\u518d\u5229\u7528\u8a2d\u8a08\u304c\u5fc5\u8981\u3002<\/p><\/li> <li><p>\u30d7\u30ed\u30ad\u30b7\u81ea\u52d5\u691c\u51fa\u3084\u74b0\u5883\u4f9d\u5b58\u306e\u6319\u52d5\u3067\u3001\u540c\u3058\u30b3\u30fc\u30c9\u3067\u3082\u63a5\u7d9a\u5148\u304c\u5909\u308f\u308b\u3053\u3068\u304c\u3042\u308b\u3002\u5b9f\u969b\u306b\u4f7f\u3063\u305f\u7d4c\u8def\u60c5\u5831\uff08\u30d7\u30ed\u30ad\u30b7\u6709\u7121\uff09\u3092\u30ed\u30b0\u306b\u6b8b\u3059\u3002<\/p><\/li> <li><p>\u4f8b\u5916\u306e\u7a2e\u5225\u3068\u5185\u90e8\u4f8b\u5916\u3092\u6b8b\u3055\u306a\u3044\u3068\u3001\u7d4c\u8def\u4e0d\u6210\u7acb\u3068\u62d2\u5426\u30fb\u8a3c\u660e\u66f8\u3092\u6df7\u540c\u3057\u3084\u3059\u3044\u3002<\/p><\/li> <\/ul> <hr> <h3>PHP<\/h3> <ul> <li><p>\u5b9f\u884c\u74b0\u5883\uff08CLI\/FPM\uff09\u3067\u74b0\u5883\u5909\u6570\u30fbDNS\u8a2d\u5b9a\u30fb\u30d7\u30ed\u30ad\u30b7\u306e\u898b\u3048\u65b9\u304c\u5909\u308f\u308b\u3002\u3069\u306e\u5b9f\u884c\u5f62\u614b\u3067\u8d77\u304d\u305f\u304b\u3092\u8a18\u9332\u3059\u308b\u3002<\/p><\/li> <li><p>cURL\u7cfb\u306e\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u672a\u8a2d\u5b9a\u306f\u53ce\u675f\u3092\u9045\u3089\u305b\u308b\u3002\u63a5\u7d9a\u30fb\u5168\u4f53\u306e\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3092\u660e\u793a\u3057\u3001\u518d\u8a66\u884c\u306f\u63a7\u3048\u3081\u306b\u8a2d\u8a08\u3059\u308b\u3002<\/p><\/li> <li><p>\u4f8b\u5916\u51e6\u7406\u304c\u8584\u3044\u3068\u3001\u73fe\u5834\u304c\u539f\u56e0\u5c64\u3092\u7279\u5b9a\u3067\u304d\u306a\u3044\u3002\u5b9b\u5148\u3001\u89e3\u6c7aIP\u3001\u30a8\u30e9\u30fc\u7a2e\u5225\u3092\u6b8b\u3059\u3002<\/p><\/li> <\/ul> <hr> <h3>Ruby<\/h3> <ul> <li><p>\u5916\u90e8HTTP\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u6319\u52d5\u5dee\u304c\u5927\u304d\u304f\u3001\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3084\u518d\u8a66\u884c\u304c\u6697\u9ed9\u306b\u306a\u308a\u3084\u3059\u3044\u3002\u8a2d\u5b9a\u3092\u660e\u793a\u3057\u3001\u4e0a\u9650\u3092\u63c3\u3048\u308b\u3002<\/p><\/li> <li><p>\u30b8\u30e7\u30d6\u30ad\u30e5\u30fc\u3067\u5927\u91cf\u4e26\u5217\u5316\u3059\u308b\u3068\u3001\u969c\u5bb3\u6642\u306b\u518d\u8a66\u884c\u304c\u96c6\u4e2d\u3057\u3066\u53ce\u675f\u304c\u9045\u308c\u308b\u3002\u30ec\u30fc\u30c8\u5236\u5fa1\u3092\u904b\u7528\u8a2d\u8a08\u306b\u542b\u3081\u308b\u3002<\/p><\/li> <li><p>\u4f8b\u5916\u30e1\u30c3\u30bb\u30fc\u30b8\u3060\u3051\u3067\u306f\u5207\u308a\u5206\u3051\u306b\u4e0d\u8db3\u3059\u308b\u3053\u3068\u304c\u3042\u308b\u3002\u539f\u56e0\u4f8b\u5916\u3068OS\u30a8\u30e9\u30fc\u76f8\u5f53\u3092\u6b8b\u3059\u3002<\/p><\/li> <\/ul> <hr> <h3>C\/C++<\/h3> <ul> <li><p>ENETUNREACH\u306ferrno\u3068\u3057\u3066\u5f97\u3089\u308c\u308b\u305f\u3081\u3001\u30ed\u30b0\u306berrno\u3068\u5b9b\u5148\u60c5\u5831\u3092\u78ba\u5b9f\u306b\u6b8b\u3059\u3068\u5207\u308a\u5206\u3051\u304c\u65e9\u3044\u3002<\/p><\/li> <li><p>\u518d\u8a66\u884c\u3092\u5b9f\u88c5\u3059\u308b\u5834\u5408\u3001\u30b9\u30ea\u30fc\u30d7\u9593\u9694\u30fb\u4e0a\u9650\u30fb\u540c\u6642\u6570\u3092\u5b88\u3089\u306a\u3044\u3068\u3001\u969c\u5bb3\u6642\u306b\u8ca0\u8377\u3092\u5897\u3084\u3059\u3002\u30d0\u30c3\u30af\u30aa\u30d5\u306f\u904b\u7528\u8981\u4ef6\u306b\u5408\u308f\u305b\u308b\u3002<\/p><\/li> <li><p>IPv6\/IPv4\u306e\u89e3\u6c7a\u9806\u3084\u30bd\u30b1\u30c3\u30c8\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u3001\u74b0\u5883\u5dee\u304c\u51fa\u3084\u3059\u3044\u3002\u63a5\u7d9a\u5148\u30a2\u30c9\u30ec\u30b9\u30d5\u30a1\u30df\u30ea\u3092\u8a18\u9332\u3059\u308b\u3002<\/p><\/li> <\/ul> <hr> <h3>Rust<\/h3> <ul> <li><p>\u975e\u540c\u671f\u30e9\u30f3\u30bf\u30a4\u30e0\u3067\u540c\u6642\u5b9f\u884c\u304c\u5897\u3048\u308b\u3068\u3001\u969c\u5bb3\u6642\u306b\u518d\u8a66\u884c\u304c\u96c6\u4e2d\u3057\u3066\u53ce\u675f\u304c\u9045\u308c\u308b\u3002\u4e0a\u9650\u3068\u30d0\u30c3\u30af\u30aa\u30d5\u3092\u8a2d\u8a08\u306b\u542b\u3081\u308b\u3002<\/p><\/li> <li><p>\u30a8\u30e9\u30fc\u578b\u304c\u8c4a\u5bcc\u306a\u5206\u3001\u30ed\u30b0\u3067\u8981\u70b9\uff08\u5b9b\u5148\u3001\u89e3\u6c7aIP\u3001\u5206\u985e\u3001\u518d\u8a66\u884c\u56de\u6570\uff09\u3092\u843d\u3068\u3055\u306a\u3044\u3053\u3068\u304c\u91cd\u8981\u3002<\/p><\/li> <li><p>\u4f9d\u5b58\u30af\u30ec\u30fc\u30c8\u3054\u3068\u306b\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3084DNS\u306e\u6319\u52d5\u304c\u7570\u306a\u308b\u5834\u5408\u304c\u3042\u308b\u3002\u904b\u7528\u3067\u7d71\u4e00\u3057\u305f\u8a2d\u5b9a\u65b9\u91dd\u3092\u6301\u3064\u3002<\/p><\/li> <\/ul> <hr> <h3>\u7de0\u3081\u304f\u304f\u308a\uff1a\u500b\u5225\u6848\u4ef6\u306e\u5224\u65ad\u304c\u6210\u679c\u3092\u5de6\u53f3\u3059\u308b<\/h3> <p>\u30a2\u30d7\u30ea\u5b9f\u88c5\u306e\u5de5\u592b\u3067\u3001ENETUNREACH(101)\u306e\u201c\u767a\u751f\u201d\u81ea\u4f53\u3092\u5b8c\u5168\u306b\u9632\u3050\u3053\u3068\u306f\u3067\u304d\u306a\u304f\u3066\u3082\u3001\u969c\u5bb3\u306e\u53ce\u675f\u901f\u5ea6\u3068\u8aac\u660e\u53ef\u80fd\u6027\u306f\u5927\u304d\u304f\u6539\u5584\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u5b9f\u969b\u306e\u73fe\u5834\u3067\u306f\u3001\u5951\u7d04\u30fb\u76e3\u67fb\u30fb\u69cb\u6210\u30fb\u904b\u7528\u624b\u9806\u304c\u7d61\u307f\u3001\u4e00\u822c\u8ad6\u3060\u3051\u3067\u6700\u9069\u89e3\u3092\u65ad\u8a00\u3067\u304d\u306a\u3044\u5c40\u9762\u304c\u51fa\u3066\u304d\u307e\u3059\u3002\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u3001\u30b3\u30f3\u30c6\u30ca\u3001\u672c\u756a\u30c7\u30fc\u30bf\u3001\u76e3\u67fb\u8981\u4ef6\u304c\u7d61\u3080\u5834\u5408\u306f\u3001\u7121\u7406\u306b\u6a29\u9650\u3084\u8a2d\u5b9a\u3092\u5e83\u304f\u89e6\u308b\u524d\u306b\u3001\u5f71\u97ff\u7bc4\u56f2\u3068\u6700\u5c0f\u5909\u66f4\u306e\u7dda\u5f15\u304d\u3092\u5148\u306b\u56fa\u3081\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p> <p>\u5177\u4f53\u7684\u306a\u6848\u4ef6\u30fb\u5951\u7d04\u30fb\u30b7\u30b9\u30c6\u30e0\u69cb\u6210\u3067\u60a9\u3093\u3060\u3068\u304d\u306f\u3001<strong>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u3078\u306e\u76f8\u8ac7\u30fb\u4f9d\u983c\u3092\u691c\u8a0e\u3059\u308b\u3053\u3068\u3067\u3001\u65e9\u3044\u6c88\u9759\u5316\u3068\u88ab\u5bb3\u6700\u5c0f\u5316\u306b\u7e4b\u304c\u308a\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p> <p>\u554f\u3044\u5408\u308f\u305b\u30d5\u30a9\u30fc\u30e0\uff1a<a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\">https:\/\/jouhou.main.jp\/?page_id=26983<\/a><\/p> <p>\u96fb\u8a71\uff1a<a href=\"tel:0120838831\">0120-838-831<\/a><\/p> \r\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b190a04 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b190a04\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d731f4a\" data-id=\"d731f4a\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f17b592 elementor-widget elementor-widget-html\" data-id=\"f17b592\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<section style=\"max-width:100%; box-sizing:border-box; overflow:visible; font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Noto Sans JP','Hiragino Kaku Gothic ProN','Yu Gothic',Meiryo,Arial,sans-serif; line-height:1.6; color:#111827; border:1px solid #e5e7eb; border-radius:3px; padding:14px; background:#ffffff;\"> <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; display:flex; gap:10px; align-items:flex-start; flex-wrap:wrap;\"> <div style=\"max-width:100%; box-sizing:border-box; overflow:visible;\"> <span style=\"display:inline-block; max-width:100%; overflow-wrap:anywhere; box-sizing:border-box; padding:4px 10px; border-radius:3px; background:#111827; color:#ffffff; font-size:12px; font-weight:700; letter-spacing:0.04em;\">\u6700\u77ed\u30c1\u30a7\u30c3\u30af<\/span> <\/div> <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; flex:1 1 260px;\"> <h2 style=\"margin:0; font-size:16px; font-weight:800; overflow-wrap:anywhere; max-width:100%;\">ENETUNREACH (101) \u201cNetwork is unreachable\u201d \u3067\u8a70\u307e\u3063\u305f\u3089\uff1a\u307e\u305a\u30eb\u30fc\u30c8\u3092\u6700\u5c0f\u5909\u66f4\u3067\u623b\u3059<\/h2> <p style=\"margin:6px 0 0 0; font-size:13px; color:#374151; overflow-wrap:anywhere; max-width:100%;\">\u539f\u56e0\u306f\u300c\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u7121\u3044\/\u9055\u3046\u300d\u304c\u591a\u3081\u3002\u7126\u3063\u3066\u5e83\u3052\u305a\u3001\u51fa\u529b\u3092\u6b8b\u3057\u3066\u304b\u3089\u6700\u77ed\u3067\u5207\u308a\u5206\u3051\u307e\u3059\u3002<\/p> <\/div> <\/div> <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; margin-top:12px; border:1px solid #e5e7eb; border-radius:3px; background:#ffffff; padding:12px;\"> <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; display:flex; align-items:center; gap:8px; flex-wrap:wrap;\"> <span style=\"display:inline-block; max-width:100%; overflow-wrap:anywhere; box-sizing:border-box; padding:2px 8px; border-radius:3px; background:#dc2626; color:#ffffff; font-size:12px; font-weight:800;\">1<\/span> <h3 style=\"margin:0; font-size:14px; font-weight:800; overflow-wrap:anywhere; max-width:100%;\">30\u79d2\u3067\u539f\u56e0\u3092\u7d5e\u308b<\/h3> <\/div> <p style=\"margin:6px 0 10px 0; font-size:13px; color:#374151; overflow-wrap:anywhere; max-width:100%;\">\u300c\u8ab0\u304c\u5b9f\u884c\u3057\u3066\u3044\u308b\u304b\u300d\u3068\u300c\u3069\u3053\u307e\u3067\u5c4a\u3044\u3066\u3044\u308b\u304b\u300d\u3092\u5148\u306b\u56fa\u5b9a\u3059\u308b\u3068\u3001\u7121\u99c4\u306a\u5909\u66f4\u304c\u6e1b\u308a\u307e\u3059\u3002<\/p> <pre style=\"margin:0; padding:10px; border-radius:3px; background:#111827; color:#ffffff; font-size:12px; line-height:1.55; white-space:pre-wrap; overflow-wrap:anywhere; word-break:break-word; max-width:100%; box-sizing:border-box;\">id whoami ip route get &lt;DEST_IP&gt; ping -c 1 -W 1 &lt;GATEWAY_IP&gt;<\/pre> <\/div> <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; margin-top:12px; border:1px solid #e5e7eb; border-radius:3px; background:#ffffff; padding:12px;\"> <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; display:flex; align-items:center; gap:8px; flex-wrap:wrap;\"> <span style=\"display:inline-block; max-width:100%; overflow-wrap:anywhere; box-sizing:border-box; padding:2px 8px; border-radius:3px; background:#16a34a; color:#ffffff; font-size:12px; font-weight:800;\">2<\/span> <h3 style=\"margin:0; font-size:14px; font-weight:800; overflow-wrap:anywhere; max-width:100%;\">\u75c7\u72b6\u5225\uff1a\u3044\u307e\u306e\u5931\u6557\u306b\u5408\u3046\u6700\u77ed\u30b3\u30de\u30f3\u30c9<\/h3> <\/div> <p style=\"margin:6px 0 10px 0; font-size:13px; color:#374151; overflow-wrap:anywhere; max-width:100%;\">\u300c\u3069\u306e\u75c7\u72b6\u306b\u8fd1\u3044\u304b\u300d\u3092\u5408\u308f\u305b\u308b\u3060\u3051\u3067\u3001\u76f4\u3059\u624b\u6570\u304c\u4e00\u6c17\u306b\u77ed\u304f\u306a\u308a\u307e\u3059\u3002<\/p> <pre style=\"margin:0; padding:10px; border-radius:3px; background:#111827; color:#ffffff; font-size:12px; line-height:1.55; white-space:pre-wrap; overflow-wrap:anywhere; word-break:break-word; max-width:100%; box-sizing:border-box;\"># \u60f3\u5b9a1: \u65e2\u5b9a\u30eb\u30fc\u30c8\u304c\u7121\u3044\/\u9055\u3046\uff08\u6700\u983b\uff09 ip route nmcli -t -f NAME,DEVICE,STATE con show --active ip route get &lt;DEST_IP&gt;\n\u60f3\u5b9a2: \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u304c DOWN \/ \u7269\u7406\u30fbVLAN\u30fbBond \u5468\u308a\n\nip link show\nnmcli dev status\nethtool <DEV> 2>\/dev\/null | head -n 20\n\n\u60f3\u5b9a3: \u7279\u5b9a\u5b9b\u5148\u3060\u3051 unreachable\uff08\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\/\u8907\u6570NIC\uff09\n\nip rule\nip route show table all\nip route get <DEST_IP> from <SRC_IP>\n\n\u60f3\u5b9a4: IPv6 \u5074\u3067 unreachable\uff08IPv6\u30eb\u30fc\u30c8\u6b20\u843d\/\u512a\u5148\u5ea6\uff09\n\nip -6 route\nip -6 route get <DEST_IPV6>\ngetent ahosts <HOSTNAME><\/pre>\n\n<\/div> <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; margin-top:12px; border:1px solid #e5e7eb; border-radius:3px; background:#ffffff; padding:12px;\"> <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; display:flex; align-items:center; gap:8px; flex-wrap:wrap;\"> <span style=\"display:inline-block; max-width:100%; overflow-wrap:anywhere; box-sizing:border-box; padding:2px 8px; border-radius:3px; background:#2563eb; color:#ffffff; font-size:12px; font-weight:800;\">3<\/span> <h3 style=\"margin:0; font-size:14px; font-weight:800; overflow-wrap:anywhere; max-width:100%;\">\u76f4\u3059\u524d\u306b\uff1a\u5f71\u97ff\u7bc4\u56f2\u30921\u5206\u3067\u78ba\u8a8d\uff08\u3084\u308a\u904e\u304e\u9632\u6b62\uff09<\/h3> <\/div> <p style=\"margin:6px 0 10px 0; font-size:13px; color:#374151; overflow-wrap:anywhere; max-width:100%;\">\u5909\u66f4\u524d\u306e\u72b6\u614b\u3092\u6b8b\u3057\u3066\u304a\u304f\u3068\u3001\u623b\u3059\u5224\u65ad\u304c\u901f\u304f\u306a\u308a\u307e\u3059\uff08\u518d\u8d77\u52d5\u3067\u623b\u308b\/\u623b\u3089\u306a\u3044\u3082\u3053\u3053\u3067\u898b\u3048\u307e\u3059\uff09\u3002<\/p> <pre style=\"margin:0; padding:10px; border-radius:3px; background:#111827; color:#ffffff; font-size:12px; line-height:1.55; white-space:pre-wrap; overflow-wrap:anywhere; word-break:break-word; max-width:100%; box-sizing:border-box;\">date; hostname ip addr ip route; ip rule nmcli -f NAME,UUID,DEVICE,STATE con show --active ss -tupan | head -n 50 traceroute -n &lt;DEST_IP&gt; 2&gt;\/dev\/null | head -n 20<\/pre> <\/div> <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; margin-top:12px; border:1px solid #fed7aa; border-radius:3px; background:#ffedd5; padding:12px;\"> <h3 style=\"margin:0; font-size:14px; font-weight:800; overflow-wrap:anywhere; max-width:100%;\">\u5931\u6557\u3059\u308b\u3068\u3069\u3046\u306a\u308b\uff1f\uff08\u3084\u308a\u304c\u3061\u306a\u30df\u30b9\u3068\u8d77\u3053\u308a\u5f97\u308b\u7d50\u679c\uff09<\/h3> <ul style=\"margin:8px 0 0 18px; padding:0; font-size:13px; color:#7c2d12; overflow-wrap:anywhere; max-width:100%;\"> <li style=\"margin:6px 0; overflow-wrap:anywhere; max-width:100%;\">\u6a29\u9650\u3092\u5e83\u3052\u3059\u304e\u308b \u2192 \u60c5\u5831\u6f0f\u3048\u3044\/\u6539\u3056\u3093<\/li> <li style=\"margin:6px 0; overflow-wrap:anywhere; max-width:100%;\">\u6240\u6709\u8005\u3092\u5909\u3048\u3059\u304e\u308b \u2192 \u4e8c\u6b21\u969c\u5bb3\uff08\u505c\u6b62\u30fb\u30a8\u30e9\u30fc\u9023\u9396\uff09<\/li> <li style=\"margin:6px 0; overflow-wrap:anywhere; max-width:100%;\">ACL\/\u4fdd\u8b77\u8a2d\u5b9a\u3092\u7121\u9020\u4f5c\u306b\u5916\u3059 \u2192 \u76e3\u67fb\u6307\u6458\/\u518d\u767a\/\u8ffd\u8de1\u4e0d\u80fd<\/li> <li style=\"margin:6px 0; overflow-wrap:anywhere; max-width:100%;\">\u5171\u6709\/NFS\/\u30b3\u30f3\u30c6\u30ca\u5883\u754c\u306e\u898b\u843d\u3068\u3057 \u2192 \u5fa9\u65e7\u9577\u671f\u5316<\/li> <\/ul> <\/div> <div style=\"max-width:100%; box-sizing:border-box; overflow:visible; margin-top:12px; border:1px solid #dbeafe; border-radius:3px; background:#eff6ff; padding:12px;\"> <h3 style=\"margin:0; font-size:14px; font-weight:900; overflow-wrap:anywhere; max-width:100%;\">\u8ff7\u3063\u305f\u3089\uff1a\u7121\u6599\u3067\u76f8\u8ac7\u3067\u304d\u307e\u3059<\/h3> <p style=\"margin:6px 0 10px 0; font-size:13px; color:#1f2937; overflow-wrap:anywhere; max-width:100%;\">\u8ff7\u3046\u30dd\u30a4\u30f3\u30c8\u304c1\u3064\u3067\u3082\u3042\u308c\u3070\u3001<strong>\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240<\/strong>\u3078\u7121\u6599\u76f8\u8ac7\u3067\u65e9\u304f\u53ce\u675f\u3057\u3084\u3059\u3044\u3067\u3059\u3002<\/p>\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; font-size:12px; color:#374151; line-height:1.7; overflow-wrap:anywhere;\">\n  \u30fb\u30c7\u30d5\u30a9\u30eb\u30c8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u304c\u6b63\u3057\u3044\u304b\u3067\u8ff7\u3063\u305f\u3089\u3002<br\/>\n  \u30fbNetworkManager \u306e\u8a2d\u5b9a\u304c\u3069\u308c\u304c\u6709\u52b9\u304b\u5224\u5225\u3067\u304d\u306a\u3044\u3002<br\/>\n  \u30fb\u8907\u6570NIC\/VRF\/\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u6574\u7406\u304c\u3067\u304d\u306a\u3044\u3002<br\/>\n  \u30fb\u4e00\u6642\u7684\u306b\u76f4\u3063\u3066\u3082\u518d\u8d77\u52d5\u3067\u623b\u308b\u539f\u56e0\u304c\u5206\u304b\u3089\u306a\u3044\u3002<br\/>\n  \u30fbIPv4\/IPv6\u3069\u3061\u3089\u304c\u8a70\u307e\u3063\u3066\u3044\u308b\u304b\u306e\u8a3a\u65ad\u304c\u3067\u304d\u306a\u3044\u3002<br\/>\n  \u30fbVPN\/\u8e0f\u307f\u53f0\/\u30d7\u30ed\u30ad\u30b7\u7d4c\u7531\u3067\u5207\u308a\u5206\u3051\u304c\u3067\u304d\u306a\u3044\u3002<br\/>\n  \u30fb\u672c\u756a\u505c\u6b62\u3092\u907f\u3051\u305f\u3044\u304c\u3001\u6700\u5c0f\u5909\u66f4\u306e\u78ba\u4fe1\u304c\u6301\u3066\u306a\u3044\u3002<br\/>\n  \u30fb\u5171\u6709\u30b9\u30c8\u30ec\u30fc\u30b8\u3001\u30b3\u30f3\u30c6\u30ca\u3001\u672c\u756a\u30c7\u30fc\u30bf\u3001\u76e3\u67fb\u8981\u4ef6\u304c\u7d61\u3080\u5834\u5408\u306f\u3001\u7121\u7406\u306b\u8a2d\u5b9a\u3092\u89e6\u308b\u524d\u306b\u76f8\u8ac7\u3059\u308b\u3068\u65e9\u304f\u53ce\u675f\u3057\u3084\u3059\u3044\u3067\u3059\u3002<br\/>\n<\/div>\n\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; margin-top:12px; display:flex; gap:8px; flex-wrap:wrap;\">\n  <a href=\"https:\/\/jouhou.main.jp\/?page_id=26983\" style=\"display:inline-block; max-width:100%; overflow-wrap:anywhere; box-sizing:border-box; padding:10px 12px; border-radius:3px; background:#2563eb; color:#ffffff; text-decoration:none; font-weight:800; font-size:13px;\">\u7121\u6599\u76f8\u8ac7\u30d5\u30a9\u30fc\u30e0<\/a>\n  <a href=\"tel:0120838831\" style=\"display:inline-block; max-width:100%; overflow-wrap:anywhere; box-sizing:border-box; padding:10px 12px; border-radius:3px; background:#1e3a8a; color:#ffffff; text-decoration:none; font-weight:800; font-size:13px;\">\u96fb\u8a71\u3067\u76f8\u8ac7\uff080120-838-831\uff09<\/a>\n  <a href=\"tel:0434224240\" style=\"display:inline-block; max-width:100%; overflow-wrap:anywhere; box-sizing:border-box; padding:10px 12px; border-radius:3px; background:#0b1f4b; color:#ffffff; text-decoration:none; font-weight:800; font-size:13px;\">\u6280\u8853\u8005\u76f4\u901a\uff08043-422-4240\uff09<\/a>\n<\/div>\n\n<div style=\"max-width:100%; box-sizing:border-box; overflow:visible; margin-top:12px; font-size:150%; font-weight:900; color:#111827; overflow-wrap:anywhere;\">\u6839\u672c\u7684\u306a\u539f\u56e0\u306e\u7a76\u660e\u3068BCP\u5bfe\u7b56\u306f\u4ee5\u4e0b\u672c\u6587\u3078\u3002<\/div>\n\n<\/div> <\/section>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1a5df03 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1a5df03\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0085305\" data-id=\"0085305\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-dad1978 elementor-widget elementor-widget-html\" data-id=\"dad1978\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div style=\"margin:0; padding:30pt; background-color:#EEEEEE;\"> <p style=\"margin:0 0 8px 0; font-size:1.2em;\"><strong>\u3082\u304f\u3058<\/strong><\/p> <ul style=\"list-style-type:none; padding-left:0; margin:0;\"> <li style=\"margin:40px 0;\"><a href=\"#sec01\">ping\u304c\u901a\u3089\u306a\u3044\u306e\u306bNIC\u306f\u6b63\u5e38\u2026ENETUNREACH\u304c\u793a\u3059\u201c\u7d4c\u8def\u4e0d\u5728\u201d\u3068\u3044\u3046\u73fe\u5b9f<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec02\">\u30bd\u30b1\u30c3\u30c8\u30a8\u30e9\u30fc101\u306e\u6b63\u4f53\u3092\u30b3\u30fc\u30c9\u304b\u3089\u8aad\u307f\u89e3\u304f\u2015\u2015\u30ab\u30fc\u30cd\u30eb\u304c\u4f55\u3092\u898b\u3066\u3044\u308b\u304b<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec03\">ip route show\u3067\u898b\u308b\u201c\u4eca\u3053\u306e\u77ac\u9593\u306e\u7d4c\u8def\u8868\u201d\u3068\u30c7\u30d5\u30a9\u30eb\u30c8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u306e\u843d\u3068\u3057\u7a74<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec04\">\u8907\u6570NIC\u30fb\u8907\u6570\u30bb\u30b0\u30e1\u30f3\u30c8\u74b0\u5883\u3067\u306e\u512a\u5148\u7d4c\u8def\u3068\u30e1\u30c8\u30ea\u30c3\u30af\u8a2d\u8a08\u3092\u6574\u7406\u3059\u308b<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec05\">\u4e00\u6642\u7684\u306a\u30c6\u30b9\u30c8\u30eb\u30fc\u30c8\u3068\u6052\u4e45\u8a2d\u5b9a\u2015\u2015nmcli\u3068NetworkManager\u3067\u306e\u6b63\u3057\u3044\u66f8\u304d\u65b9<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec06\">firewalld\u3068\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u5883\u754c\u2015\u2015\u30d5\u30a3\u30eb\u30bf\u306a\u306e\u304b\u7d4c\u8def\u306a\u306e\u304b\u3092\u5207\u308a\u5206\u3051\u308b<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec07\">systemd-networkd\u3068\u9759\u7684\u30eb\u30fc\u30c8\u30fb\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3067\u518d\u73fe\u6027\u306e\u3042\u308b\u69cb\u6210\u306b\u3059\u308b<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec08\">\u969c\u5bb3\u767a\u751f\u30ed\u30b0\u304b\u3089\u5fa9\u65e7\u307e\u3067\u3092\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u5316\u3057\u3066\u201c\u518d\u767a\u9632\u6b62\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u201d\u3092\u4f5c\u308b<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec09\">DR\u3068\u30d5\u30a7\u30a4\u30eb\u30aa\u30fc\u30d0\u30fc\u69cb\u6210\u3067ENETUNREACH\u3092\u201c\u60f3\u5b9a\u5185\u30a4\u30d9\u30f3\u30c8\u201d\u306b\u5909\u3048\u308b<\/a><\/li> <li style=\"margin:40px 0;\"><a href=\"#sec10\">\u300c\u3064\u306a\u304c\u3089\u306a\u3044\u300d\u3092\u9650\u308a\u306a\u304f\u30bc\u30ed\u306b\u8fd1\u3065\u3051\u308b\u305f\u3081\u306b\u2015\u2015\u8a2d\u8a08\u30fb\u76e3\u8996\u30fb\u624b\u9806\u66f8\u3092\u3069\u3046\u898b\u76f4\u3059\u304b<\/a><\/li> <\/ul> <\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e68f947 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e68f947\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-dd58827\" data-id=\"dd58827\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d1743e3 elementor-widget elementor-widget-spacer\" data-id=\"d1743e3\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-65574fc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"65574fc\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-200bed7\" data-id=\"200bed7\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ec8c3f5 elementor-widget elementor-widget-html\" data-id=\"ec8c3f5\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<a id=\"sec01\"><\/a>\r\n\r\n<p>\u3000<\/p> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">ping\u304c\u901a\u3089\u306a\u3044\u306e\u306bNIC\u306f\u6b63\u5e38\u2026ENETUNREACH\u304c\u793a\u3059\u201c\u7d4c\u8def\u4e0d\u5728\u201d\u3068\u3044\u3046\u73fe\u5b9f<\/h2> <p>\u203b\u7e70\u308a\u8fd4\u3057\u306b\u306a\u308a\u307e\u3059\u304c\u3001\u672c\u8a18\u4e8b\u306f\u3042\u304f\u307e\u3067\u4e00\u822c\u7684\u306a\u60c5\u5831\u63d0\u4f9b\u3067\u3059\u3002\u5177\u4f53\u7684\u306a\u6848\u4ef6\u30fb\u5951\u7d04\u30fb\u30b7\u30b9\u30c6\u30e0\u69cb\u6210\u306b\u95a2\u308f\u308b\u5224\u65ad\u306f\u3001\u5fc5\u305a\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240\u3001\u5f01\u8b77\u58eb\u3084\u5c02\u9580\u5bb6\u306b\u76f8\u8ac7\u3057\u3066\u304b\u3089\u884c\u3063\u3066\u304f\u3060\u3055\u3044\u3002<\/p> <hr> <p>Red Hat \u7cfb Linux \u3067\u4f5c\u696d\u3057\u3066\u3044\u308b\u3068\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5074\u304b\u3089\u300cENETUNREACH (101) \u2013 Network is unreachable\u300d\u3068\u3044\u3046\u30a8\u30e9\u30fc\u304c\u8fd4\u3063\u3066\u304f\u308b\u5834\u9762\u304c\u3042\u308a\u307e\u3059\u3002ping \u304c\u307e\u3063\u305f\u304f\u8fd4\u3063\u3066\u3053\u306a\u3044\u3001\u3057\u304b\u3057 <code>ip a<\/code> \u3084 <code>nmcli device status<\/code> \u3092\u898b\u308b\u3068\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306f UP\u3001\u30ea\u30f3\u30af\u3082\u30ad\u30e3\u30ea\u30a2\u3042\u308a\u3001\u3068\u3044\u3046\u72b6\u6cc1\u3067\u3059\u3002\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u8996\u70b9\u3067\u306f\u300c\u30bd\u30b1\u30c3\u30c8\u3092\u958b\u3044\u3066 send \u3057\u305f\u3060\u3051\u306a\u306e\u306b\u3001\u306a\u305c OS \u304b\u3089\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0d\u53ef\u3068\u8a00\u308f\u308c\u308b\u306e\u304b\uff1f\u300d\u3068\u3044\u3046\u7d20\u6734\u306a\u7591\u554f\u304c\u6e67\u304d\u307e\u3059\u3002<\/p> <p>ENETUNREACH \u306f\u3001\u30ab\u30fc\u30cd\u30eb\u304c\u300c\u3053\u306e\u5b9b\u5148\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u5230\u9054\u3059\u308b\u305f\u3081\u306e\u7d4c\u8def\uff08\u30eb\u30fc\u30c8\uff09\u3092\u6c7a\u5b9a\u3067\u304d\u306a\u3044\u300d\u72b6\u614b\u3092\u8868\u3059\u30a8\u30e9\u30fc\u3067\u3059\u3002\u7269\u7406 NIC \u306e\u30ea\u30f3\u30af\u30a2\u30c3\u30d7\uff0f\u30c0\u30a6\u30f3\u3068\u306f\u5225\u30ec\u30a4\u30e4\u30fc\u306e\u8a71\u3067\u3042\u308a\u3001L3 \u306e\u7d4c\u8def\u60c5\u5831\u304c\u4e0d\u8db3\u3057\u3066\u3044\u308b\u304b\u3001\u77db\u76fe\u3057\u3066\u3044\u308b\u3068\u304d\u306b\u8fd4\u3055\u308c\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u30b1\u30fc\u30d6\u30eb\u304c\u523a\u3055\u3063\u3066\u3044\u3066\u30ea\u30f3\u30af LED \u304c\u70b9\u706f\u3057\u3066\u3044\u3066\u3082\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u304c\u9069\u5207\u306b\u69cb\u6210\u3055\u308c\u3066\u3044\u306a\u3051\u308c\u3070\u3001ENETUNREACH \u304c\u8fd4\u3063\u3066\u304f\u308b\u3053\u3068\u306f\u5341\u5206\u3042\u308a\u5f97\u307e\u3059\u3002<\/p> <p>\u5178\u578b\u7684\u306a\u30d1\u30bf\u30fc\u30f3\u3068\u3057\u3066\u3001\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p> <ul> <li>\u30c7\u30d5\u30a9\u30eb\u30c8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u3001\u307e\u305f\u306f\u8aa4\u3063\u305f\u30a2\u30c9\u30ec\u30b9\u306b\u306a\u3063\u3066\u3044\u308b<\/li> <li>\u8907\u6570 NIC \u69cb\u6210\u3067\u3001\u610f\u56f3\u3057\u306a\u3044\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u5074\u306b\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u304c\u5f35\u3089\u308c\u3066\u3044\u308b<\/li> <li>\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306e\u8aa4\u308a\u306b\u3088\u308a\u3001\u540c\u4e00\u30bb\u30b0\u30e1\u30f3\u30c8\u3068\u307f\u306a\u3059\u3079\u304d\u5b9b\u5148\u3092\u300c\u30eb\u30fc\u30c8\u4e0d\u5728\u300d\u3068\u8aa4\u8a8d\u3057\u3066\u3044\u308b<\/li> <li>NetworkManager \/ ifcfg \u8a2d\u5b9a\u3068 <code>ip route<\/code> \u306e\u5b9f\u969b\u306e\u72b6\u614b\u304c\u98df\u3044\u9055\u3063\u3066\u304a\u308a\u3001\u518d\u8d77\u52d5\u3084 reload \u3067\u30eb\u30fc\u30c8\u304c\u6d88\u3048\u3066\u3057\u307e\u3046<\/li> <\/ul> <p>\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5074\u306e\u4f8b\u5916\u51e6\u7406\u306b\u610f\u8b58\u304c\u5411\u304d\u304c\u3061\u3067\u3059\u304c\u3001ENETUNREACH \u306f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b3\u30fc\u30c9\u305d\u306e\u3082\u306e\u306e\u554f\u984c\u3067\u306f\u306a\u304f\u3001OS \u304c\u6301\u3064\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u60c5\u5831\u306e\u554f\u984c\u3067\u3059\u3002\u3068\u306f\u3044\u3048\u3001\u3053\u306e\u30a8\u30e9\u30fc\u304c\u3069\u3046\u3044\u3046\u524d\u63d0\u3067\u8fd4\u3055\u308c\u308b\u306e\u304b\u3092\u7406\u89e3\u3057\u3066\u304a\u304f\u3068\u3001\u30ed\u30b0\u3092\u8aad\u3093\u3060\u3068\u304d\u306b\u300c\u3053\u308c\u306f\u30a2\u30d7\u30ea\u306e\u30ea\u30c8\u30e9\u30a4\u3067\u306f\u89e3\u6c7a\u3057\u306a\u3044\u300d\u300c\u904b\u7528\u30c1\u30fc\u30e0\u306b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u898b\u76f4\u3057\u3066\u3082\u3089\u3046\u3079\u304d\u3060\u300d\u3068\u3044\u3063\u305f\u5207\u308a\u5206\u3051\u304c\u3001\u30b3\u30fc\u30c9\u30ec\u30d9\u30eb\u3067\u81ea\u7136\u306b\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <p>\u6df7\u540c\u3057\u3084\u3059\u3044\u306e\u306f\u3001\u540c\u3058\u304f\u5230\u9054\u4e0d\u53ef\u7cfb\u306e\u30a8\u30e9\u30fc\u3067\u3042\u308b EHOSTUNREACH \u3084 ECONNREFUSED \u306a\u3069\u3068\u306e\u9055\u3044\u3067\u3059\u3002\u7c21\u5358\u306b\u6574\u7406\u3059\u308b\u3068\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <table border=\"1\" cellspacing=\"0\" cellpadding=\"4\"> <tr> <th style=\"background-color:#eeeeee;\">\u30a8\u30e9\u30fc\u540d<\/th> <th style=\"background-color:#eeeeee;\">errno<\/th> <th style=\"background-color:#eeeeee;\">\u5178\u578b\u7684\u306a\u610f\u5473<\/th> <\/tr> <tr> <td style=\"background-color:#eeeeee;\">ENETUNREACH<\/td> <td>101<\/td> <td>\u5b9b\u5148\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3078\u306e\u30eb\u30fc\u30c8\u304c\u5b58\u5728\u3057\u306a\u3044\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5358\u4f4d\u306e\u5230\u9054\u4e0d\u53ef\uff09<\/td> <\/tr> <tr> <td style=\"background-color:#eeeeee;\">EHOSTUNREACH<\/td> <td>113<\/td> <td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u306f\u5230\u9054\u3067\u304d\u308b\u304c\u3001\u305d\u306e\u4e2d\u306e\u30db\u30b9\u30c8\u306b\u5230\u9054\u3067\u304d\u306a\u3044<\/td> <\/tr> <tr> <td style=\"background-color:#eeeeee;\">ECONNREFUSED<\/td> <td>111<\/td> <td>\u76f8\u624b\u30db\u30b9\u30c8\u306b\u306f\u5c4a\u3044\u305f\u304c\u3001\u76ee\u7684\u30dd\u30fc\u30c8\u3067\u30b5\u30fc\u30d3\u30b9\u304c\u30ea\u30b9\u30f3\u3057\u3066\u3044\u306a\u3044<\/td> <\/tr> <\/table> <p>\u3053\u306e\u3088\u3046\u306b\u3001ENETUNREACH \u306f\u304b\u306a\u308a\u65e9\u3044\u6bb5\u968e\uff08\u30eb\u30fc\u30c8\u89e3\u6c7a\u306e\u6642\u70b9\uff09\u3067\u51fa\u3066\u304f\u308b\u30a8\u30e9\u30fc\u3067\u3059\u3002\u9006\u306b\u8a00\u3046\u3068\u3001ENETUNREACH \u304c\u30ec\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u308b\u6642\u70b9\u3067\u3001ARP \u3084 TCP \u30cf\u30f3\u30c9\u30b7\u30a7\u30a4\u30af\u4ee5\u524d\u306e\u554f\u984c\u3067\u3042\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3001\u3068\u5224\u65ad\u3067\u304d\u307e\u3059\u3002<\/p> <p>\u672c\u8a18\u4e8b\u3067\u306f\u3001\u307e\u305a ENETUNREACH \u304c\u3069\u306e\u3088\u3046\u306a\u5185\u90e8\u51e6\u7406\u306e\u7d50\u679c\u3068\u3057\u3066\u8fd4\u3055\u308c\u308b\u306e\u304b\u3092\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u5411\u3051\u306b\u6574\u7406\u3057\u3001\u305d\u306e\u3046\u3048\u3067 Red Hat \u7cfb\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30b7\u30e7\u30f3\u3067\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u518d\u8a2d\u5b9a\u3068\u63a5\u7d9a\u5bfe\u7b56\u306e\u5b9f\u52d9\u7684\u306a\u624b\u9806\u306b\u843d\u3068\u3057\u8fbc\u3093\u3067\u3044\u304d\u307e\u3059\u3002\u6700\u7d42\u7684\u306b\u306f\u3001\u5358\u767a\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c8\u3060\u3051\u3067\u306a\u304f\u3001\u300c\u8a2d\u8a08\u300d\u300c\u76e3\u8996\u300d\u300c\u624b\u9806\u66f8\u300d\u306e\u30ec\u30d9\u30eb\u3067 ENETUNREACH \u3092\u6e1b\u3089\u3057\u3066\u3044\u304f\u305f\u3081\u306e\u8003\u3048\u65b9\u307e\u3067\u3092\u6271\u3044\u307e\u3059\u3002<\/p> <p>\u306a\u304a\u3001\u3053\u3053\u3067\u8aac\u660e\u3059\u308b\u5185\u5bb9\u306f\u4e00\u822c\u8ad6\u306b\u57fa\u3065\u3044\u305f\u6574\u7406\u3067\u3042\u308a\u3001\u5b9f\u969b\u306e\u30b7\u30b9\u30c6\u30e0\u74b0\u5883\u3067\u306f\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u30dd\u30ea\u30b7\u30fc\u3001\u30de\u30eb\u30c1\u30d1\u30b9\u3001SD-WAN\u3001\u30af\u30e9\u30a6\u30c9\u74b0\u5883\u56fa\u6709\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306a\u3069\u3001\u8ffd\u52a0\u306e\u8981\u7d20\u304c\u7d61\u307f\u307e\u3059\u3002\u3053\u3046\u3057\u305f\u8907\u96d1\u306a\u69cb\u6210\u3067\u306f\u3001\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240\u306e\u3088\u3046\u306a\u5c02\u9580\u5bb6\u306b\u3088\u308b\u500b\u5225\u691c\u8a3c\u304c\u4e0d\u53ef\u6b20\u306b\u306a\u308b\u70b9\u306b\u3064\u3044\u3066\u3082\u3001\u7d42\u76e4\u3067\u6539\u3081\u3066\u89e6\u308c\u3066\u3044\u304d\u307e\u3059\u3002<\/p> \r\n<a id=\"sec02\"><\/a>\r\n\r\n<p>\u3000<\/p> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u30bd\u30b1\u30c3\u30c8\u30a8\u30e9\u30fc101\u306e\u6b63\u4f53\u3092\u30b3\u30fc\u30c9\u304b\u3089\u8aad\u307f\u89e3\u304f\u2015\u2015\u30ab\u30fc\u30cd\u30eb\u304c\u4f55\u3092\u898b\u3066\u3044\u308b\u304b<\/h2> <p>\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u304c ENETUNREACH \u3092\u6b63\u3057\u304f\u6271\u3046\u306b\u306f\u3001\u300c\u3069\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u300d\u300c\u3069\u306e\u6761\u4ef6\u3092\u6e80\u305f\u3057\u305f\u3068\u304d\u306b\u300d\u3053\u306e errno \u304c\u30bb\u30c3\u30c8\u3055\u308c\u308b\u306e\u304b\u3092\u62bc\u3055\u3048\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u7a7a\u9593\u304b\u3089\u898b\u308b\u3068\u3001<code>connect()<\/code> \u3084 <code>sendto()<\/code> \u3092\u547c\u3093\u3060\u7d50\u679c\u3068\u3057\u3066 -1 \u304c\u8fd4\u308a\u3001<code>errno == ENETUNREACH<\/code> \u306b\u306a\u308b\u3060\u3051\u3067\u3059\u304c\u3001\u305d\u306e\u88cf\u5074\u3067\u306f\u3001\u30ab\u30fc\u30cd\u30eb\u304c\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u3084\u30cd\u30a4\u30d0\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u53c2\u7167\u3057\u3001\u6761\u4ef6\u5206\u5c90\u3092\u7d4c\u3066\u30a8\u30e9\u30fc\u3092\u9078\u629e\u3057\u3066\u3044\u307e\u3059\u3002<\/p> <p>Linux \u30ab\u30fc\u30cd\u30eb\u3067\u306f\u3001\u30bd\u30b1\u30c3\u30c8 API \u306e\u591a\u304f\u306f\u5171\u901a\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u30bf\u30c3\u30af\u3092\u7d4c\u7531\u3057\u3001\u5b9b\u5148 IP \u30a2\u30c9\u30ec\u30b9\u306b\u5bfe\u3057\u3066\u300c\u3069\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u304b\u3089\u3001\u3069\u306e\u30cd\u30af\u30b9\u30c8\u30db\u30c3\u30d7\u306b\u9001\u308b\u304b\u300d\u3092\u6c7a\u5b9a\u3059\u308b\u305f\u3081\u306b\u30eb\u30fc\u30c8\u691c\u7d22\u3092\u884c\u3044\u307e\u3059\u3002\u5177\u4f53\u7684\u306a\u5b9f\u88c5\u306f\u30ab\u30fc\u30cd\u30eb\u30d0\u30fc\u30b8\u30e7\u30f3\u3084\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u304c\u3001\u6982\u5ff5\u7684\u306b\u306f\u6b21\u306e\u3088\u3046\u306a\u6d41\u308c\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <ol> <li>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304b\u3089\u6e21\u3055\u308c\u305f\u5b9b\u5148\u30a2\u30c9\u30ec\u30b9\u30fb\u30dd\u30fc\u30c8\u306b\u57fa\u3065\u304d\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30d6\u30ed\u30c3\u30af\uff08TCP\/UDP\uff09\u3092\u521d\u671f\u5316\u3059\u308b<\/li> <li>FIB\uff08Forwarding Information Base\uff09\u306b\u5bfe\u3057\u3066\u30eb\u30fc\u30c8\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u3092\u884c\u3044\u3001\u6700\u9577\u4e00\u81f4\u3059\u308b\u7d4c\u8def\u3092\u63a2\u7d22\u3059\u308b<\/li> <li>\u9069\u5207\u306a\u7d4c\u8def\u30a8\u30f3\u30c8\u30ea\u304c\u898b\u3064\u304b\u308c\u3070\u3001\u305d\u306e\u7d4c\u8def\u306b\u7d10\u3065\u304f\u51fa\u529b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3068\u30cd\u30af\u30b9\u30c8\u30db\u30c3\u30d7\u3092\u6c7a\u5b9a\u3059\u308b<\/li> <li>\u7d4c\u8def\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u5834\u5408\u3001\u3082\u3057\u304f\u306f\u300c\u3053\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f\u5229\u7528\u4e0d\u53ef\u300d\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3059\u30a8\u30f3\u30c8\u30ea\u304c\u3042\u308b\u5834\u5408\u306b ENETUNREACH \u304c\u9078\u629e\u3055\u308c\u308b<\/li> <\/ol> <p>\u3053\u3053\u3067\u91cd\u8981\u306a\u306e\u306f\u3001ENETUNREACH \u304c\u300c\u30eb\u30fc\u30c8\u691c\u7d22\u306e\u7d50\u679c\u300d\u3068\u3057\u3066\u6c7a\u5b9a\u3055\u308c\u308b\u3068\u3044\u3046\u70b9\u3067\u3059\u3002\u3064\u307e\u308a\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b3\u30fc\u30c9\u304c\u3069\u308c\u3060\u3051\u6b63\u3057\u304f\u30bd\u30b1\u30c3\u30c8 API \u3092\u547c\u3093\u3067\u3044\u3066\u3082\u3001FIB \u306b\u9069\u5207\u306a\u60c5\u5831\u304c\u306a\u3051\u308c\u3070 ENETUNREACH \u306f\u907f\u3051\u3089\u308c\u307e\u305b\u3093\u3002\u9006\u306b\u8a00\u3048\u3070\u3001ENETUNREACH \u304c\u8fd4\u308b\u3068\u3044\u3046\u3053\u3068\u306f\u3001\u300c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5074\u306b\u554f\u984c\u304c\u3042\u308b\u3068\u3044\u3046\u3088\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u69cb\u6210\u60c5\u5831\u306b\u30ae\u30e3\u30c3\u30d7\u304c\u3042\u308b\u300d\u3068\u89e3\u91c8\u3059\u3079\u304d\u30b5\u30a4\u30f3\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <p>\u307e\u305f\u3001\u5b9b\u5148\u304c IPv4 \u304b IPv6 \u304b\u306b\u3088\u3063\u3066\u3082\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u3084\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u306e\u6271\u3044\u304c\u5909\u308f\u308a\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001IPv4 \u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8 (<code>0.0.0.0\/0<\/code>) \u306f\u8a2d\u5b9a\u6e08\u307f\u3067\u3082\u3001IPv6 \u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8 (<code>::\/0<\/code>) \u304c\u5b58\u5728\u3057\u306a\u3044\u5834\u5408\u3001IPv6 \u5b9b\u3066\u306e\u63a5\u7d9a\u3060\u3051 ENETUNREACH \u306b\u306a\u308b\u3001\u3068\u3044\u3063\u305f\u72b6\u6cc1\u304c\u8d77\u3053\u308a\u5f97\u307e\u3059\u3002\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u5074\u3067 <code>AF_INET<\/code> \u3068 <code>AF_INET6<\/code> \u3092\u660e\u793a\u7684\u306b\u4f7f\u3044\u5206\u3051\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u3069\u306e\u30a2\u30c9\u30ec\u30b9\u30d5\u30a1\u30df\u30ea\u3067\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u304b\u306b\u3082\u6ce8\u610f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p> <p>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304b\u3089\u898b\u308b\u3068\u3001\u300c\u540c\u3058\u30db\u30b9\u30c8\u4e0a\u3067\u52d5\u3044\u3066\u3044\u308b\u5225\u30d7\u30ed\u30bb\u30b9\u306f\u554f\u984c\u306a\u304f\u63a5\u7d9a\u3067\u304d\u308b\u306e\u306b\u3001\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u3060\u3051 ENETUNREACH \u306b\u306a\u308b\u300d\u3068\u3044\u3063\u305f\u6319\u52d5\u3092\u793a\u3059\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30bd\u30b1\u30c3\u30c8\u3054\u3068\u306b\u30d0\u30a4\u30f3\u30c9\u3055\u308c\u308b\u30ed\u30fc\u30ab\u30eb\u30a2\u30c9\u30ec\u30b9\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u540d\u524d\u89e3\u6c7a\u306e\u7d50\u679c\u304c\u7570\u306a\u308b\u3053\u3068\u304c\u539f\u56e0\u306e\u4e00\u3064\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001<\/p> <ul> <li><code>bind()<\/code> \u3067\u7279\u5b9a\u306e\u30ed\u30fc\u30ab\u30eb IP \u30a2\u30c9\u30ec\u30b9\u306b\u30d0\u30a4\u30f3\u30c9\u3057\u3066\u3044\u308b<\/li> <li>\u6307\u5b9a\u3057\u305f\u30ed\u30fc\u30ab\u30eb\u30a2\u30c9\u30ec\u30b9\u306b\u5bfe\u5fdc\u3059\u308b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u306f\u9069\u5207\u306a\u30eb\u30fc\u30c8\u304c\u306a\u3044<\/li> <li>\u5225\u30d7\u30ed\u30bb\u30b9\u306f <code>INADDR_ANY<\/code> \u3067\u30d0\u30a4\u30f3\u30c9\u3057\u3066\u304a\u308a\u3001\u5225\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u7d4c\u7531\u3067\u63a5\u7d9a\u3067\u304d\u3066\u3044\u308b<\/li> <\/ul> <p>\u3068\u3044\u3063\u305f\u30b1\u30fc\u30b9\u3067\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5074\u306e\u30ed\u30fc\u30ab\u30eb\u30a2\u30c9\u30ec\u30b9\u6307\u5b9a\u304c\u3001\u7d50\u679c\u3068\u3057\u3066 ENETUNREACH \u3092\u8a98\u767a\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <p>\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u304c\u30ed\u30b0\u8a2d\u8a08\u3092\u884c\u3046\u969b\u306b\u306f\u3001\u5358\u306b\u300cerrno=101\u300d\u3068\u3060\u3051\u8a18\u9332\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u5c11\u306a\u304f\u3068\u3082\u4ee5\u4e0b\u306e\u60c5\u5831\u3092\u30bb\u30c3\u30c8\u3067\u6b8b\u3057\u3066\u304a\u304f\u3068\u3001\u5f8c\u7d9a\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a8\u30f3\u30b8\u30cb\u30a2\u304c\u539f\u56e0\u5206\u6790\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p> <ul> <li>\u305d\u306e\u3068\u304d\u306b\u4f7f\u7528\u3057\u3066\u3044\u305f\u30ed\u30fc\u30ab\u30eb IP \/ \u30dd\u30fc\u30c8\uff08<code>getsockname()<\/code> \u306e\u7d50\u679c\uff09<\/li> <li>\u5b9b\u5148 IP \/ \u30dd\u30fc\u30c8<\/li> <li>\u30a2\u30c9\u30ec\u30b9\u30d5\u30a1\u30df\u30ea\uff08IPv4 \/ IPv6\uff09<\/li> <li>\u540d\u524d\u89e3\u6c7a\u306e\u7d50\u679c\uff08\u3069\u306e A \/ AAAA \u30ec\u30b3\u30fc\u30c9\u3092\u63a1\u7528\u3057\u305f\u304b\uff09<\/li> <\/ul> <p>\u3053\u3046\u3057\u305f\u60c5\u5831\u304c\u6b8b\u3063\u3066\u3044\u308c\u3070\u3001\u300c\u3053\u306e\u30db\u30b9\u30c8\u5168\u4f53\u3067\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u304a\u304b\u3057\u3044\u306e\u304b\u300d\u300c\u7279\u5b9a\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3060\u3051\u304c\u554f\u984c\u306a\u306e\u304b\u300d\u300c\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u56fa\u6709\u306e\u30d0\u30a4\u30f3\u30c9\u6307\u5b9a\u304c\u539f\u56e0\u306a\u306e\u304b\u300d\u3092\u5207\u308a\u5206\u3051\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u672c\u8a18\u4e8b\u306e\u5f8c\u534a\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u30ed\u30b0\u3092\u3082\u3068\u306b\u3001\u5b9f\u969b\u306b <code>ip route get<\/code> \u306a\u3069\u3092\u4f75\u7528\u3057\u3066\u539f\u56e0\u3092\u8ffd\u3046\u6d41\u308c\u3092\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u5f62\u5f0f\u3067\u6574\u7406\u3057\u307e\u3059\u3002<\/p> \r\n<a id=\"sec03\"><\/a>\r\n\r\n<p>\u3000<\/p> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">ip route show\u3067\u898b\u308b\u201c\u4eca\u3053\u306e\u77ac\u9593\u306e\u7d4c\u8def\u8868\u201d\u3068\u30c7\u30d5\u30a9\u30eb\u30c8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u306e\u843d\u3068\u3057\u7a74<\/h2> <p>ENETUNREACH \u3092\u76ee\u306b\u3057\u305f\u3068\u304d\u3001\u6700\u521d\u306b\u78ba\u8a8d\u3059\u3079\u304d\u60c5\u5831\u306e\u3072\u3068\u3064\u304c\u3001<code>ip route show<\/code> \u306e\u7d50\u679c\u3067\u3059\u3002Red Hat \u7cfb\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001NetworkManager \u3084 ifcfg \u8a2d\u5b9a\u3001\u3042\u308b\u3044\u306f systemd-networkd \u306a\u3069\u304c\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u7ba1\u7406\u3057\u3066\u3044\u3066\u3082\u3001\u6700\u7d42\u7684\u306b\u30ab\u30fc\u30cd\u30eb\u304c\u53c2\u7167\u3059\u308b\u306e\u306f <code>ip route show<\/code> \u306b\u53cd\u6620\u3055\u308c\u3066\u3044\u308b FIB \u306e\u72b6\u614b\u3067\u3059\u3002\u3064\u307e\u308a\u3001\u300cOS \u304c\u4eca\u3053\u306e\u77ac\u9593\u3069\u306e\u3088\u3046\u306b\u7d4c\u8def\u3092\u8a8d\u8b58\u3057\u3066\u3044\u308b\u304b\u300d\u306f\u3001<code>ip<\/code> \u30b3\u30de\u30f3\u30c9\u3067\u78ba\u8a8d\u3059\u308b\u306e\u304c\u6700\u3082\u78ba\u5b9f\u3067\u3059\u3002<\/p> <p>\u6700\u4f4e\u9650\u62bc\u3055\u3048\u3066\u304a\u304d\u305f\u3044\u306e\u306f\u3001\u6b21\u306e 3 \u3064\u3067\u3059\u3002<\/p> <ul> <li><code>default<\/code> \u884c\u304c\u5b58\u5728\u3059\u308b\u304b\u3069\u3046\u304b\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u306e\u6709\u7121\uff09<\/li> <li>\u30ed\u30fc\u30ab\u30eb\u30bb\u30b0\u30e1\u30f3\u30c8\uff08\u4f8b\uff1a192.168.10.0\/24\uff09\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30eb\u30fc\u30c8\u304c\u6b63\u3057\u3044\u304b<\/li> <li>\u8907\u6570\u306e <code>default<\/code> \u884c\u3084\u91cd\u8907\u3059\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30eb\u30fc\u30c8\u304c\u306a\u3044\u304b<\/li> <\/ul> <p>\u305f\u3068\u3048\u3070\u3001\u6b21\u306e\u3088\u3046\u306a\u51fa\u529b\u304c\u5f97\u3089\u308c\u305f\u3068\u3057\u307e\u3059\u3002<\/p> <pre><code>default via 192.168.10.1 dev eth0 proto static metric 100 192.168.10.0\/24 dev eth0 proto kernel scope link src 192.168.10.20 metric 100 <\/code><\/pre> <p>\u3053\u306e\u5834\u5408\u3001<code>192.168.10.0\/24<\/code> \u5b9b\u3066\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f\u76f4\u63a5 eth0 \u304b\u3089\u51fa\u3066\u3044\u304d\u3001\u305d\u308c\u4ee5\u5916\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306a\u3069\uff09\u5b9b\u3066\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f\u3001192.168.10.1 \u3092\u30cd\u30af\u30b9\u30c8\u30db\u30c3\u30d7\u3068\u3059\u308b\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u7d4c\u7531\u3067\u8ee2\u9001\u3055\u308c\u307e\u3059\u3002\u3082\u3057 ENETUNREACH \u304c\u767a\u751f\u3057\u3066\u3044\u308b\u306e\u304c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5b9b\u3066\u306e\u901a\u4fe1\u3067\u3042\u308c\u3070\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u304c\u6d88\u3048\u3066\u3044\u306a\u3044\u304b\u3001\u3042\u308b\u3044\u306f\u8aa4\u3063\u305f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u5074\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u304b\u3092\u7591\u3046\u3079\u304d\u3067\u3059\u3002<\/p> <p>\u4e00\u65b9\u3001\u30de\u30eb\u30c1\u30db\u30fc\u30e0\uff08\u8907\u6570 NIC\uff09\u74b0\u5883\u3067\u306f\u3001\u72b6\u6cc1\u304c\u3082\u3046\u5c11\u3057\u8907\u96d1\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <pre><code>default via 10.0.0.1 dev eth1 proto static metric 100 default via 192.168.10.1 dev eth0 proto static metric 200 10.0.0.0\/24 dev eth1 proto kernel scope link src 10.0.0.20 metric 100 192.168.10.0\/24 dev eth0 proto kernel scope link src 192.168.10.20 metric 100 <\/code><\/pre> <p>\u3053\u306e\u3088\u3046\u306b\u8907\u6570\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u3001\u30ab\u30fc\u30cd\u30eb\u306f\u30e1\u30c8\u30ea\u30c3\u30af\u3084\u512a\u5148\u5ea6\u306b\u57fa\u3065\u3044\u3066\u4f7f\u7528\u3059\u308b\u7d4c\u8def\u3092\u9078\u629e\u3057\u307e\u3059\u3002\u610f\u56f3\u3057\u3066\u3044\u306a\u3044\u5074\u306e\u56de\u7dda\uff08\u4f8b\uff1a\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u56de\u7dda\uff09\u306b\u4f4e\u30e1\u30c8\u30ea\u30c3\u30af\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3068\u3001\u969c\u5bb3\u6642\u306b\u671f\u5f85\u3057\u306a\u3044\u7d4c\u8def\u3067\u901a\u4fe1\u3057\u3088\u3046\u3068\u3057\u3066 ENETUNREACH \u3092\u5f15\u304d\u8d77\u3053\u3059\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p> <p>\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u306e\u6d88\u5931\u3082\u3088\u304f\u3042\u308b\u843d\u3068\u3057\u7a74\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u6b21\u306e\u3088\u3046\u306a\u64cd\u4f5c\u306e\u7d44\u307f\u5408\u308f\u305b\u3067\u554f\u984c\u304c\u8d77\u3053\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p> <ul> <li>NetworkManager \u3067\u4e00\u6642\u7684\u306b\u63a5\u7d9a\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3092\u5909\u66f4\u3057\u3001\u5225\u30bb\u30b0\u30e1\u30f3\u30c8\u306b\u5207\u308a\u66ff\u3048\u308b<\/li> <li>\u4f5c\u696d\u5f8c\u306b\u5143\u306e\u63a5\u7d9a\u306b\u623b\u3057\u305f\u304c\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u3060\u3051\u304c\u5fa9\u5143\u3055\u308c\u3066\u3044\u306a\u3044<\/li> <li>\u518d\u8d77\u52d5\u30fb\u518d\u63a5\u7d9a\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u3001ifcfg \u30d5\u30a1\u30a4\u30eb\u3068\u5b9f\u969b\u306e\u72b6\u614b\u304c\u4e0d\u6574\u5408\u3092\u8d77\u3053\u3059<\/li> <\/ul> <p>\u3053\u306e\u3088\u3046\u306a\u5834\u5408\u3001<code>ip route show<\/code> \u3092\u78ba\u8a8d\u3059\u308b\u3068 <code>default<\/code> \u884c\u305d\u306e\u3082\u306e\u304c\u5b58\u5728\u305b\u305a\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5b9b\u3066\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306b\u3064\u3044\u3066 FIB \u304b\u3089\u300c\u30eb\u30fc\u30c8\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u300d\u3068\u5224\u65ad\u3055\u308c ENETUNREACH \u304c\u8fd4\u3055\u308c\u307e\u3059\u3002<\/p> <p>\u3088\u308a\u8a73\u7d30\u306a\u5207\u308a\u5206\u3051\u306b\u306f\u3001\u7279\u5b9a\u306e\u5b9b\u5148\u306b\u5bfe\u3057\u3066\u30ab\u30fc\u30cd\u30eb\u304c\u3069\u306e\u30eb\u30fc\u30c8\u3092\u9078\u629e\u3059\u308b\u304b\u3092\u78ba\u8a8d\u3067\u304d\u308b <code>ip route get<\/code> \u304c\u6709\u52b9\u3067\u3059\u3002<\/p> <pre><code>ip route get 8.8.8.8 <\/code><\/pre> <p>\u3053\u308c\u306b\u3088\u308a\u3001\u5b9b\u5148 8.8.8.8 \u306b\u5bfe\u3057\u3066\u3001\u3069\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u30fb\u3069\u306e\u30cd\u30af\u30b9\u30c8\u30db\u30c3\u30d7\u3092\u7d4c\u7531\u3059\u308b\u3064\u3082\u308a\u306a\u306e\u304b\u3001\u3042\u308b\u3044\u306f\u300cRTNETLINK answers: Network is unreachable\u300d\u3068\u3044\u3046\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u308b\u306e\u304b\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ed\u30b0\u306b\u6b8b\u3063\u3066\u3044\u308b\u5b9b\u5148 IP \u3092\u3082\u3068\u306b <code>ip route get<\/code> \u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u3067\u3001ENETUNREACH \u306e\u518d\u73fe\u6027\u304c\u9ad8\u307e\u308a\u307e\u3059\u3002<\/p> <p>\u7b2c 3 \u7ae0\u3067\u306f\u3001\u3053\u3046\u3057\u305f <code>ip<\/code> \u30b3\u30de\u30f3\u30c9\u306b\u3088\u308b\u72b6\u614b\u78ba\u8a8d\u3092\u571f\u53f0\u306b\u3001\u6b21\u7ae0\u4ee5\u964d\u3067\u53d6\u308a\u4e0a\u3052\u308b\u300c\u8907\u6570 NIC\u30fb\u8907\u6570\u30bb\u30b0\u30e1\u30f3\u30c8\u74b0\u5883\u300d\u300cNetworkManager \u8a2d\u5b9a\u300d\u300cfirewalld\u300d\u300csystemd-networkd\u300d\u306e\u305d\u308c\u305e\u308c\u304c\u3001\u6700\u7d42\u7684\u306b\u3069\u306e\u3088\u3046\u306b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u3078\u5f71\u97ff\u3059\u308b\u306e\u304b\u3092\u6574\u7406\u3059\u308b\u305f\u3081\u306e\u57fa\u76e4\u3092\u4f5c\u308a\u307e\u3057\u305f\u3002\u6b21\u306e\u7ae0\u3067\u306f\u3001\u7279\u306b\u30c8\u30e9\u30d6\u30eb\u304c\u8d77\u3053\u308a\u3084\u3059\u3044\u8907\u6570 NIC \u69cb\u6210\u306b\u7126\u70b9\u3092\u5f53\u3066\u3001\u30e1\u30c8\u30ea\u30c3\u30af\u3068\u512a\u5148\u7d4c\u8def\u306e\u8003\u3048\u65b9\u3092\u30d7\u30ed\u30b0\u30e9\u30de\u30fc\u306b\u3082\u308f\u304b\u308a\u3084\u3059\u3044\u5f62\u3067\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p> \r\n<a id=\"sec04\"><\/a>\r\n\r\n<p>\u3000<\/p> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u8907\u6570NIC\u30fb\u8907\u6570\u30bb\u30b0\u30e1\u30f3\u30c8\u74b0\u5883\u3067\u306e\u512a\u5148\u7d4c\u8def\u3068\u30e1\u30c8\u30ea\u30c3\u30af\u8a2d\u8a08\u3092\u6574\u7406\u3059\u308b<\/h2> <p>Red Hat \u7cfb Linux \u306e\u904b\u7528\u73fe\u5834\u3067\u306f\u3001\u7269\u7406\u30fb\u4eee\u60f3\u3092\u554f\u308f\u305a\u8907\u6570 NIC\u30fb\u8907\u6570\u30bb\u30b0\u30e1\u30f3\u30c8\u69cb\u6210\u306f\u73cd\u3057\u304f\u3042\u308a\u307e\u305b\u3093\u3002\u793e\u5185 LAN \u3068\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u56de\u7dda\u3001\u76e3\u8996\u5c02\u7528\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u7528\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306a\u3069\u3001\u5f79\u5272\u3054\u3068\u306b\u30bb\u30b0\u30e1\u30f3\u30c8\u3092\u5206\u96e2\u3059\u308b\u306e\u306f\u4e00\u822c\u7684\u306a\u8a2d\u8a08\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u3053\u306e\u3088\u3046\u306a\u69cb\u6210\u3067\u306f\u3001\u3069\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u300c\u512a\u5148\u7d4c\u8def\u300d\u3068\u3057\u3066\u6271\u3046\u304b\u3001\u3069\u306e\u56de\u7dda\u3092\u300c\u969c\u5bb3\u6642\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u300d\u306b\u3059\u308b\u304b\u3092\u660e\u793a\u7684\u306b\u8a2d\u8a08\u3057\u306a\u3044\u3068\u3001\u601d\u308f\u306c\u30bf\u30a4\u30df\u30f3\u30b0\u3067 ENETUNREACH \u3092\u542b\u3080\u5230\u9054\u4e0d\u53ef\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p> <p>Linux \u30ab\u30fc\u30cd\u30eb\u306f\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u5185\u306e\u30a8\u30f3\u30c8\u30ea\u3092\u30e1\u30c8\u30ea\u30c3\u30af\uff08metric\uff09\u3084\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u9577\u3067\u8a55\u4fa1\u3057\u3001\u6700\u3082\u300c\u597d\u307e\u3057\u3044\u300d\u7d4c\u8def\u3092\u9078\u629e\u3057\u307e\u3059\u3002\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u9577\u304c\u540c\u3058\u5834\u5408\u3001\u30e1\u30c8\u30ea\u30c3\u30af\u306e\u5c0f\u3055\u3044\u65b9\u304c\u512a\u5148\u3055\u308c\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u6b21\u306e\u3088\u3046\u306a\u72b6\u614b\u3092\u8003\u3048\u307e\u3059\u3002<\/p> <pre><code>default via 10.0.0.1 dev eth1 proto static metric 50 default via 192.168.10.1 dev eth0 proto static metric 100 <\/code><\/pre> <p>\u3053\u306e\u5834\u5408\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5b9b\u3066\u306e\u901a\u4fe1\u306f\u3001\u539f\u5247\u3068\u3057\u3066 eth1 \u5074\u306e 10.0.0.1 \u7d4c\u7531\u3067\u9001\u4fe1\u3055\u308c\u307e\u3059\u3002\u610f\u56f3\u3068\u3057\u3066\u306f\u300ceth1=\u4e3b\u56de\u7dda\u3001eth0=\u4e88\u5099\u56de\u7dda\u300d\u3067\u3042\u308c\u3070\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u8a2d\u5b9a\u8005\u304c\u30e1\u30c8\u30ea\u30c3\u30af\u306e\u610f\u5473\u3092\u610f\u8b58\u3057\u3066\u304a\u3089\u305a\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u306e\u307e\u307e\u8907\u6570\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u3092\u8ffd\u52a0\u3057\u305f\u7d50\u679c\u3001\u512a\u5148\u7d4c\u8def\u304c\u60f3\u5b9a\u3068\u9006\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p> <p>\u30de\u30eb\u30c1\u30db\u30fc\u30e0\u69cb\u6210\u3067\u306f\u3001\u6b21\u306e\u89b3\u70b9\u3067\u6574\u7406\u3057\u3066\u304a\u304f\u3068\u6df7\u4e71\u304c\u6e1b\u308a\u307e\u3059\u3002<\/p> <ul> <li>\u7528\u9014\u3054\u3068\u306b\u300c\u3053\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\u306f\u4f55\u306e\u305f\u3081\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u300d\u3092\u660e\u6587\u5316\u3059\u308b<\/li> <li>\u7528\u9014\u3054\u3068\u306b\u300c\u901a\u5e38\u6642\u306e\u512a\u5148\u5ea6\u300d\u3068\u300c\u969c\u5bb3\u6642\u306e\u5207\u308a\u66ff\u3048\u6761\u4ef6\u300d\u3092\u6c7a\u3081\u308b<\/li> <li>\u305d\u306e\u65b9\u91dd\u306b\u5408\u308f\u305b\u3066\u30e1\u30c8\u30ea\u30c3\u30af\u3084\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u30eb\u30fc\u30eb\u3092\u8a2d\u8a08\u3059\u308b<\/li> <\/ul> <p>\u7279\u306b\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b5\u30fc\u30d0\u30fc\u304c\u76e3\u8996\u30b5\u30fc\u30d0\u30fc\u3084\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u30b5\u30fc\u30d0\u30fc\u3068\u7570\u306a\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u8a08\u30dd\u30ea\u30b7\u30fc\u3092\u6301\u3063\u3066\u3044\u308b\u5834\u5408\u3001\u300c\u76e3\u8996\u306f\u5c02\u7528 NIC \u7d4c\u7531\u3001\u696d\u52d9\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f\u5225 NIC \u7d4c\u7531\u300d\u3068\u3044\u3063\u305f\u7c92\u5ea6\u3067\u7d4c\u8def\u3092\u5206\u3051\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3092\u66d6\u6627\u306b\u3057\u305f\u307e\u307e\u8907\u6570\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u3092\u8a2d\u5b9a\u3059\u308b\u3068\u3001\u7279\u5b9a\u306e\u5b9b\u5148\u306b\u5bfe\u3057\u3066\u3060\u3051 ENETUNREACH \u304c\u767a\u751f\u3057\u305f\u308a\u3001\u969c\u5bb3\u6642\u306b\u671f\u5f85\u3068\u7570\u306a\u308b\u7d4c\u8def\u3092\u901a\u3063\u3066\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u5916\u306b\u51fa\u3066\u3044\u3063\u305f\u308a\u3057\u307e\u3059\u3002<\/p> <hr> <p>\u307e\u305f\u3001\u8907\u6570 NIC \u74b0\u5883\u3067\u306f\u3001\u9001\u4fe1\u5143 IP \u30a2\u30c9\u30ec\u30b9\uff08src\uff09\u3082\u91cd\u8981\u3067\u3059\u3002\u540c\u3058\u30db\u30b9\u30c8\u3067\u3082\u3001eth0 \u304b\u3089\u51fa\u308b\u5834\u5408\u3068 eth1 \u304b\u3089\u51fa\u308b\u5834\u5408\u3067\u9001\u4fe1\u5143 IP \u304c\u7570\u306a\u308a\u3001\u76f8\u624b\u5074\u306e\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3084\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b0\u30eb\u30fc\u30d7\u306b\u3088\u3063\u3066\u8a31\u53ef\u3055\u308c\u308b\u30fb\u3055\u308c\u306a\u3044\u304c\u5206\u304b\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002Linux \u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3067\u306f\u3001\u30eb\u30fc\u30c8\u30a8\u30f3\u30c8\u30ea\u306b <code>src<\/code> \u304c\u660e\u793a\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u3067\u3082\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u305f\u30a2\u30c9\u30ec\u30b9\u3084\u9006\u5f15\u304d\u30eb\u30fc\u30eb\u3092\u3082\u3068\u306b\u9001\u4fe1\u5143 IP \u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u3053\u306e\u6c7a\u5b9a\u904e\u7a0b\u304c\u8a2d\u8a08\u8005\u306e\u60f3\u5b9a\u3068\u305a\u308c\u3066\u3044\u308b\u3068\u3001\u300c\u3042\u308b\u30bb\u30b0\u30e1\u30f3\u30c8\u304b\u3089\u306f\u758e\u901a\u3059\u308b\u304c\u3001\u5225\u30bb\u30b0\u30e1\u30f3\u30c8\u7d4c\u7531\u3067\u306f ENETUNREACH \u306b\u306a\u308b\u300d\u3068\u3044\u3063\u305f\u72b6\u614b\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p> <p>\u3053\u3046\u3057\u305f\u554f\u984c\u3092\u9632\u3050\u305f\u3081\u306b\u306f\u3001\u5358\u306b\u300cIP \u3092\u632f\u308b\u300d\u300c\u30c7\u30d5\u30a9\u30eb\u30c8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3092\u8a2d\u5b9a\u3059\u308b\u300d\u3060\u3051\u3067\u306a\u304f\u3001\u300c\u3053\u306e\u30db\u30b9\u30c8\u304c\u3069\u306e\u5b9b\u5148\u306b\u5bfe\u3057\u3066\u3001\u3069\u306e NIC\u30fb\u3069\u306e\u9001\u4fe1\u5143 IP \u3092\u4f7f\u3046\u3079\u304d\u304b\u300d\u3092\u56f3\u793a\u3057\u3001\u305d\u308c\u306b\u6cbf\u3063\u3066\u30e1\u30c8\u30ea\u30c3\u30af\u3084\u9759\u7684\u30eb\u30fc\u30c8\u3001\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\uff08ip rule\uff09\u3092\u8a2d\u8a08\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u6b21\u7ae0\u3067\u306f\u3001\u305d\u308c\u3089\u306e\u8a2d\u8a08\u3092 OS \u306e\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306b\u3069\u306e\u3088\u3046\u306b\u843d\u3068\u3057\u8fbc\u3080\u304b\u3001\u7279\u306b NetworkManager \u3092\u5229\u7528\u3057\u305f\u5834\u5408\u306e\u4e00\u6642\u7684\u306a\u30c6\u30b9\u30c8\u30eb\u30fc\u30c8\u3068\u6052\u4e45\u8a2d\u5b9a\u306e\u9055\u3044\u306b\u7126\u70b9\u3092\u5f53\u3066\u307e\u3059\u3002<\/p> \r\n<a id=\"sec05\"><\/a>\r\n\r\n<p>\u3000<\/p> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u4e00\u6642\u7684\u306a\u30c6\u30b9\u30c8\u30eb\u30fc\u30c8\u3068\u6052\u4e45\u8a2d\u5b9a\u2015\u2015nmcli\u3068NetworkManager\u3067\u306e\u6b63\u3057\u3044\u66f8\u304d\u65b9<\/h2> <p>ENETUNREACH \u3092\u89e3\u6d88\u3059\u308b\u305f\u3081\u306b\u73fe\u5834\u3067\u3088\u304f\u884c\u308f\u308c\u308b\u64cd\u4f5c\u304c\u3001\u300c\u3068\u308a\u3042\u3048\u305a ip route add \u3067\u30c6\u30b9\u30c8\u30eb\u30fc\u30c8\u3092\u8ffd\u52a0\u3059\u308b\u300d\u3053\u3068\u3067\u3059\u3002\u554f\u984c\u306e\u5207\u308a\u5206\u3051\u306e\u305f\u3081\u306b\u4e00\u6642\u7684\u306a\u30eb\u30fc\u30c8\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u81ea\u4f53\u306f\u6709\u52b9\u3067\u3059\u304c\u3001\u305d\u306e\u307e\u307e\u6052\u4e45\u8a2d\u5b9a\u3092\u884c\u308f\u305a\u306b\u904b\u7528\u3092\u7d9a\u3051\u308b\u3068\u3001\u518d\u8d77\u52d5\u3084 NetworkManager \u306e\u518d\u8aad\u307f\u8fbc\u307f\u3067\u30eb\u30fc\u30c8\u304c\u5931\u308f\u308c\u3001\u518d\u3073 ENETUNREACH \u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p> <p>Red Hat \u7cfb\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001NetworkManager \u304c\u6a19\u6e96\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7ba1\u7406\u30c7\u30fc\u30e2\u30f3\u3068\u3057\u3066\u5229\u7528\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u591a\u304f\u3001systemd \u8d77\u52d5\u6642\u306b\u306f NetworkManager \u304c\u63a5\u7d9a\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u306b\u57fa\u3065\u3044\u3066\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3068\u30eb\u30fc\u30c8\u3092\u518d\u69cb\u6210\u3057\u307e\u3059\u3002\u3053\u306e\u3068\u304d\u3001\u624b\u52d5\u3067\u8ffd\u52a0\u3057\u305f\u30eb\u30fc\u30c8\uff08<code>ip route add<\/code> \u306e\u307f\u3067\u767b\u9332\u3057\u305f\u3082\u306e\uff09\u306f\u3001NetworkManager \u306e\u7ba1\u7406\u5916\u3067\u3042\u308b\u305f\u3081\u3001\u518d\u8d77\u52d5\u5f8c\u306b\u518d\u73fe\u3055\u308c\u307e\u305b\u3093\u3002<\/p> <p>\u4e00\u6642\u7684\u306a\u30c6\u30b9\u30c8\u3068\u6052\u4e45\u8a2d\u5b9a\u3092\u304d\u3061\u3093\u3068\u5206\u3051\u308b\u305f\u3081\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u904b\u7528\u304c\u6709\u52b9\u3067\u3059\u3002<\/p> <ul> <li>\u539f\u56e0\u5207\u308a\u5206\u3051\u306e\u305f\u3081\u306e\u30c6\u30b9\u30c8\u3067\u306f <code>ip route add<\/code> \u3092\u4f7f\u3063\u3066\u3082\u3088\u3044\u304c\u3001\u554f\u984c\u89e3\u6c7a\u306e\u6bb5\u968e\u3067\u306f\u5fc5\u305a\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u304b nmcli \u3067\u6052\u4e45\u8a2d\u5b9a\u3092\u6b8b\u3059<\/li> <li>NetworkManager \u7ba1\u7406\u4e0b\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3067\u306f\u3001\u57fa\u672c\u7684\u306b <code>nmcli connection modify<\/code> \u3092\u901a\u3058\u3066\u30eb\u30fc\u30c8\u3092\u8ffd\u52a0\u3059\u308b<\/li> <li>\u624b\u4f5c\u696d\u3067 ifcfg \u30d5\u30a1\u30a4\u30eb\u3092\u66f8\u304d\u63db\u3048\u308b\u5834\u5408\u306f\u3001\u8a2d\u5b9a\u53cd\u6620\u624b\u9806\uff08connection down\/up \u306a\u3069\uff09\u3092\u6a19\u6e96\u5316\u3059\u308b<\/li> <\/ul> <hr> <p>\u4f8b\u3048\u3070\u3001\u7279\u5b9a\u306e\u5b9b\u5148 10.20.30.0\/24 \u3092 eth1 \u7d4c\u7531\u306e\u30eb\u30fc\u30c8\u3067\u8ffd\u52a0\u3057\u305f\u3044\u5834\u5408\u3001nmcli \u3067\u306f\u6b21\u306e\u3088\u3046\u306a\u64cd\u4f5c\u304c\u5178\u578b\u4f8b\u3067\u3059\uff08\u5b9f\u969b\u306e\u30b3\u30de\u30f3\u30c9\u306f\u74b0\u5883\u306b\u5408\u308f\u305b\u3066\u8abf\u6574\u304c\u5fc5\u8981\u3067\u3059\uff09\u3002<\/p> <pre><code>nmcli connection modify &lt;connection-name&gt; \\ +ipv4.routes \"10.20.30.0\/24 10.0.0.1\" nmcli connection up &lt;connection-name&gt; <\/code><\/pre> <p>\u3053\u308c\u306b\u3088\u308a\u3001\u5f53\u8a72\u63a5\u7d9a\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u306e\u8a2d\u5b9a\u3068\u3057\u3066\u9759\u7684\u30eb\u30fc\u30c8\u304c\u4fdd\u5b58\u3055\u308c\u3001NetworkManager \u306e\u518d\u8d77\u52d5\u3084\u30db\u30b9\u30c8\u518d\u8d77\u52d5\u5f8c\u3082\u540c\u3058\u30eb\u30fc\u30c8\u304c\u518d\u73fe\u3055\u308c\u307e\u3059\u3002ifcfg \u30b9\u30bf\u30a4\u30eb\u306e\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\uff08\u4f8b\uff1a<code>\/etc\/sysconfig\/network-scripts\/ifcfg-eth0<\/code>\uff09\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u74b0\u5883\u3067\u306f\u3001<code>IPV4_ROUTE_*<\/code> \u306a\u3069\u306e\u5f62\u5f0f\u3067\u30eb\u30fc\u30c8\u3092\u8a18\u8ff0\u3057\u307e\u3059\u304c\u3001\u73fe\u5728\u306e Red Hat \u7cfb\u3067\u306f NetworkManager \u306e\u30ad\u30fc\u30d5\u30a1\u30a4\u30eb\u5f62\u5f0f\u3084 nmcli \u3067\u306e\u7ba1\u7406\u304c\u63a8\u5968\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p> <p>\u30c6\u30b9\u30c8\u76ee\u7684\u3067 <code>ip route add<\/code> \u3092\u4f7f\u3063\u305f\u5834\u5408\u306f\u3001\u5fc5\u305a\u4f5c\u696d\u8a18\u9332\u306b\u300c\u4e00\u6642\u30eb\u30fc\u30c8\u300d\u3068\u660e\u8a18\u3057\u3001\u6052\u4e45\u5bfe\u5fdc\u3068\u3057\u3066\u300cNetworkManager \u8a2d\u5b9a\u3078\u306e\u53cd\u6620\u300d\u300c\u8a2d\u5b9a\u53cd\u6620\u306e\u78ba\u8a8d\u300d\u300c\u518d\u8d77\u52d5\u5f8c\u306e\u758e\u901a\u78ba\u8a8d\u300d\u307e\u3067\u3092\u4e00\u9023\u306e\u4f5c\u696d\u3068\u3059\u308b\u3079\u304d\u3067\u3059\u3002\u3053\u308c\u3092\u6020\u308b\u3068\u3001\u6570\u9031\u9593\u5f8c\u3084 OS \u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u5f8c\u306b ENETUNREACH \u304c\u518d\u767a\u3057\u3001\u300c\u4ee5\u524d\u306f\u3064\u306a\u304c\u3063\u3066\u3044\u305f\u306e\u306b\u3001\u3044\u3064\u304b\u3089\u304b\u3064\u306a\u304c\u3089\u306a\u304f\u306a\u3063\u305f\u300d\u3068\u3044\u3046\u66d6\u6627\u306a\u969c\u5bb3\u3068\u3057\u3066\u518d\u71c3\u3057\u307e\u3059\u3002<\/p> <p>\u6b21\u7ae0\u3067\u306f\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u3088\u304f\u6df7\u540c\u3055\u308c\u308b firewalld \u306e\u8a2d\u5b9a\u306b\u3064\u3044\u3066\u3001\u300c\u3069\u3053\u307e\u3067\u304c\u7d4c\u8def\u306e\u554f\u984c\u3067\u3001\u3069\u3053\u304b\u3089\u304c\u30d5\u30a3\u30eb\u30bf\u306e\u554f\u984c\u304b\u300d\u3092\u6574\u7406\u3057\u3001ENETUNREACH \u3068\u305d\u306e\u4ed6\u306e\u5230\u9054\u4e0d\u53ef\u30a8\u30e9\u30fc\u3092\u5207\u308a\u5206\u3051\u308b\u89b3\u70b9\u3092\u307e\u3068\u3081\u307e\u3059\u3002<\/p> \r\n<a id=\"sec06\"><\/a>\r\n\r\n<p>\u3000<\/p> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">firewalld\u3068\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u5883\u754c\u2015\u2015\u30d5\u30a3\u30eb\u30bf\u306a\u306e\u304b\u7d4c\u8def\u306a\u306e\u304b\u3092\u5207\u308a\u5206\u3051\u308b<\/h2> <p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u969c\u5bb3\u306e\u73fe\u5834\u3067\u306f\u3001\u300c\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u304c\u539f\u56e0\u304b\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u539f\u56e0\u304b\u300d\u304c\u3057\u3070\u3057\u3070\u6df7\u540c\u3055\u308c\u307e\u3059\u3002Red Hat \u7cfb\u3067\u306f\u3001\u30db\u30b9\u30c8\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3068\u3057\u3066 firewalld\uff08iptables\/nftables \u306e\u30e9\u30c3\u30d1\uff09\u304c\u5229\u7528\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u304f\u3001\u3055\u3089\u306b\u305d\u306e\u5916\u5074\u306b\u7269\u7406\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3084\u30af\u30e9\u30a6\u30c9\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b0\u30eb\u30fc\u30d7\u304c\u5b58\u5728\u3059\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u3068\u304d\u3001ENETUNREACH \u306e\u3088\u3046\u306a\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u7531\u6765\u306e\u30a8\u30e9\u30fc\u3068\u3001\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u7531\u6765\u306e\u30d1\u30b1\u30c3\u30c8\u30c9\u30ed\u30c3\u30d7\u3092\u533a\u5225\u3057\u3066\u8003\u3048\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p> <p>\u4e00\u822c\u7684\u306b\u3001ENETUNREACH \u306f\u30eb\u30fc\u30c8\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\u306e\u7d50\u679c\u3068\u3057\u3066\u8fd4\u3055\u308c\u308b\u30a8\u30e9\u30fc\u3067\u3042\u308a\u3001firewalld \u306e\u30eb\u30fc\u30eb\u304c\u539f\u56e0\u3067\u76f4\u63a5 ENETUNREACH \u306b\u306a\u308b\u3053\u3068\u306f\u901a\u5e38\u3042\u308a\u307e\u305b\u3093\u3002firewalld \u306b\u3088\u308b\u30d1\u30b1\u30c3\u30c8\u30c9\u30ed\u30c3\u30d7\u306f\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u901a\u904e\u3057\u305f\u5f8c\u3001\u30d5\u30a3\u30eb\u30bf\u30c1\u30a7\u30a4\u30f3\u4e0a\u3067 DROP\/REJECT \u3055\u308c\u308b\u3082\u306e\u3067\u3059\u3002\u305d\u306e\u7d50\u679c\u3068\u3057\u3066\u306f\u3001\u901a\u4fe1\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3084 ICMP \u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\uff08host unreachable \u306a\u3069\uff09\u3068\u3057\u3066\u89b3\u6e2c\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5074\u306e errno \u3068\u3057\u3066 ENETUNREACH \u304c\u8fd4\u308b\u304b\u3069\u3046\u304b\u306f\u5225\u306e\u554f\u984c\u3067\u3059\u3002<\/p> <p>\u969c\u5bb3\u5207\u308a\u5206\u3051\u306e\u969b\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u30b9\u30c6\u30c3\u30d7\u3067\u300c\u7d4c\u8def\u304b\u30d5\u30a3\u30eb\u30bf\u304b\u300d\u3092\u5224\u5b9a\u3059\u308b\u3068\u6574\u7406\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p> <ul> <li><code>ip route get \u5b9b\u5148IP<\/code> \u304c\u300cNetwork is unreachable\u300d\u3068\u8fd4\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\uff08\u8fd4\u308b\u306a\u3089\u7d4c\u8def\u554f\u984c\u304c\u6fc3\u539a\uff09<\/li> <li>\u30ed\u30fc\u30ab\u30eb\u30db\u30b9\u30c8\u304b\u3089\u306e ping \u3067\u306f\u306a\u304f\u3001\u540c\u4e00\u30bb\u30b0\u30e1\u30f3\u30c8\u4e0a\u306e\u5225\u30db\u30b9\u30c8\u304b\u3089\u306e ping \u306e\u7d50\u679c\u3092\u6bd4\u8f03\u3059\u308b<\/li> <li>firewalld \u3092\u4e00\u6642\u7684\u306b\u7de9\u3081\u305f\u72b6\u614b\uff08\u30be\u30fc\u30f3\u3092 trusted \u306b\u3059\u308b\u306a\u3069\uff09\u3067\u3082 ENETUNREACH \u304c\u7d9a\u304f\u304b\u3092\u691c\u8a3c\u3059\u308b<\/li> <\/ul> <hr> <p>firewalld \u5074\u306e\u8a2d\u5b9a\u30df\u30b9\u3067\u8d77\u3053\u308a\u3084\u3059\u3044\u306e\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002<\/p> <ul> <li>\u30be\u30fc\u30f3\u3078\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u5272\u308a\u5f53\u3066\u304c\u8aa4\u3063\u3066\u304a\u308a\u3001\u671f\u5f85\u3059\u308b\u30bb\u30b0\u30e1\u30f3\u30c8\u304c public \u3068\u3057\u3066\u6271\u308f\u308c\u3066\u3044\u308b<\/li> <li>\u30b5\u30fc\u30d3\u30b9\u3084\u30dd\u30fc\u30c8\u306f\u8a31\u53ef\u3055\u308c\u3066\u3044\u308b\u304c\u3001\u30d5\u30a9\u30ef\u30fc\u30c9\u8a2d\u5b9a\uff08masquerade \/ forward \u30dd\u30ea\u30b7\u30fc\uff09\u304c\u4e0d\u8db3\u3057\u3066\u3044\u308b<\/li> <li>\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u30dd\u30ea\u30b7\u30fc\u304c DROP \u3067\u3001\u4f8b\u5916\u30eb\u30fc\u30eb\u306e\u66f8\u304d\u5fd8\u308c\u304c\u3042\u308b<\/li> <\/ul> <p>\u3053\u308c\u3089\u306f ENETUNREACH \u3067\u306f\u306a\u304f\u3001\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u3084\u5225\u7a2e\u306e\u5230\u9054\u4e0d\u53ef\u3068\u3057\u3066\u73fe\u308c\u308b\u30b1\u30fc\u30b9\u304c\u591a\u3044\u3082\u306e\u306e\u3001\u73fe\u5834\u306e\u4f53\u611f\u3068\u3057\u3066\u306f\u300c\u3064\u306a\u304c\u3089\u306a\u3044\u300d\u3068\u3044\u3046\u4e00\u70b9\u3067\u6df7\u540c\u3055\u308c\u304c\u3061\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30ed\u30b0\u3084\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9\u3092\u78ba\u8a8d\u3057\u306a\u3044\u307e\u307e\u300c\u307e\u305a firewalld \u3092\u7591\u3046\u300d\u904b\u7528\u304c\u5b9a\u7740\u3059\u308b\u3068\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u8a2d\u8a08\u4e0d\u5099\u304c\u5f8c\u56de\u3057\u306b\u306a\u308a\u3001\u7d50\u679c\u3068\u3057\u3066 ENETUNREACH \u3092\u7e70\u308a\u8fd4\u3059\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <p>\u672c\u8a18\u4e8b\u306e\u30c6\u30fc\u30de\u3067\u3042\u308b ENETUNREACH \u3092\u6271\u3046\u969b\u306b\u306f\u3001\u300cfirewalld \u306f\u3042\u304f\u307e\u3067 L3\/L4 \u306e\u30d5\u30a3\u30eb\u30bf\u3067\u3042\u308a\u3001\u30eb\u30fc\u30c8\u304c\u5b58\u5728\u3057\u306a\u3044\u554f\u984c\u306f\u89e3\u6c7a\u3067\u304d\u306a\u3044\u300d\u3068\u3044\u3046\u524d\u63d0\u3092\u660e\u78ba\u306b\u3057\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u3046\u3048\u3067\u3001\u300c\u30eb\u30fc\u30c8\u304c\u6b63\u3057\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u305f\u3046\u3048\u3067\u3001\u30d5\u30a3\u30eb\u30bf\u8a2d\u5b9a\u3092\u898b\u76f4\u3059\u300d\u3068\u3044\u3046\u9806\u756a\u3092\u5fb9\u5e95\u3059\u308b\u3053\u3068\u3067\u3001\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u52b9\u7387\u3092\u5927\u304d\u304f\u9ad8\u3081\u3089\u308c\u307e\u3059\u3002<\/p> <p>\u6b21\u7ae0\u3067\u306f\u3001NetworkManager \u4ee5\u5916\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7ba1\u7406\u3068\u3057\u3066\u5229\u7528\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308b systemd-networkd \u306b\u3082\u89e6\u308c\u3001\u9759\u7684\u30eb\u30fc\u30c8\u3084\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u30d9\u30fc\u30b9\u3067\u518d\u73fe\u6027\u9ad8\u304f\u7dad\u6301\u3059\u308b\u65b9\u6cd5\u3092\u6982\u89b3\u3057\u307e\u3059\u3002<\/p> \r\n<a id=\"sec07\"><\/a>\r\n\r\n<p>\u3000<\/p> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">systemd-networkd\u3068\u9759\u7684\u30eb\u30fc\u30c8\u30fb\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3067\u518d\u73fe\u6027\u306e\u3042\u308b\u69cb\u6210\u306b\u3059\u308b<\/h2> <p>Red Hat \u7cfb\u30c7\u30a3\u30b9\u30c8\u30ea\u30d3\u30e5\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u6a19\u6e96\u7684\u306b\u306f NetworkManager \u304c\u5229\u7528\u3055\u308c\u307e\u3059\u304c\u3001\u7279\u5b9a\u306e\u7528\u9014\u3084\u30b3\u30f3\u30c6\u30ca\u30db\u30b9\u30c8\u3001\u30a2\u30d7\u30e9\u30a4\u30a2\u30f3\u30b9\u7528\u9014\u306a\u3069\u3067 systemd-networkd \u3092\u63a1\u7528\u3059\u308b\u30b1\u30fc\u30b9\u3082\u3042\u308a\u307e\u3059\u3002\u3069\u306e\u30c7\u30fc\u30e2\u30f3\u3092\u5229\u7528\u3059\u308b\u306b\u3057\u3066\u3082\u91cd\u8981\u306a\u306e\u306f\u3001\u300c\u518d\u8d77\u52d5\u3084\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u5f8c\u3082\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u69cb\u6210\u304c\u518d\u73fe\u53ef\u80fd\u3067\u3042\u308b\u3053\u3068\u300d\u3067\u3059\u3002\u624b\u4f5c\u696d\u3067\u8ffd\u52a0\u3057\u305f\u30eb\u30fc\u30c8\u3084 ip rule \u304c\u3001\u6642\u9593\u306e\u7d4c\u904e\u3068\u3068\u3082\u306b\u5931\u308f\u308c\u308b\u69cb\u6210\u306f\u3001ENETUNREACH \u3092\u8a98\u767a\u3057\u3084\u3059\u3044\u4e0d\u5b89\u5b9a\u306a\u72b6\u614b\u3068\u8a00\u3048\u307e\u3059\u3002<\/p> <p>systemd-networkd \u3092\u7528\u3044\u308b\u5834\u5408\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3054\u3068\u306b <code>.network<\/code> \u30d5\u30a1\u30a4\u30eb\u3092\u7528\u610f\u3057\u3001\u305d\u306e\u4e2d\u3067 [Route] \u30bb\u30af\u30b7\u30e7\u30f3\u3084 [RoutingPolicyRule] \u30bb\u30af\u30b7\u30e7\u30f3\u3092\u4f7f\u3063\u3066\u30eb\u30fc\u30c8\u3084\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002\u6982\u5ff5\u7684\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u5f62\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <pre><code>[Route] Destination=10.20.30.0\/24 Gateway=10.0.0.1\r\n\r\n[RoutingPolicyRule]\r\nFrom=10.0.0.0\/24\r\nTable=100\r\n<\/code><\/pre>\r\n\r\n<p>\u3053\u306e\u3088\u3046\u306b\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u3068\u3057\u3066\u6b8b\u3057\u3066\u304a\u3051\u3070\u3001systemd-networkd \u304c\u8d77\u52d5\u3059\u308b\u305f\u3073\u306b\u540c\u3058\u30eb\u30fc\u30c8\u30fb\u30eb\u30fc\u30eb\u304c\u518d\u751f\u6210\u3055\u308c\u3001\u624b\u4f5c\u696d\u306b\u3088\u308b\u8a2d\u5b9a\u6f0f\u308c\u3084\u30b3\u30de\u30f3\u30c9 typo \u306b\u3088\u308b\u4e0d\u6574\u5408\u3092\u6e1b\u3089\u305b\u307e\u3059\u3002NetworkManager \u74b0\u5883\u3067\u3082\u540c\u69d8\u3067\u3001\u300c\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb or \u63a5\u7d9a\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u300d\u3092\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u69cb\u6210\u306e\u552f\u4e00\u306e\u30bd\u30fc\u30b9\u30fb\u30aa\u30d6\u30fb\u30c8\u30a5\u30eb\u30fc\u30b9\u3068\u3057\u3001\u305d\u308c\u4ee5\u5916\u306e\u4e00\u6642\u7684\u306a\u30eb\u30fc\u30c8\u8ffd\u52a0\u306f\u3042\u304f\u307e\u3067\u969c\u5bb3\u5bfe\u5fdc\u306e\u30c6\u30b9\u30c8\u306b\u7559\u3081\u308b\u904b\u7528\u304c\u671b\u307e\u3057\u3044\u3068\u8a00\u3048\u307e\u3059\u3002<\/p> <hr> <p>\u8907\u96d1\u306a\u30de\u30eb\u30c1\u30db\u30fc\u30e0\u69cb\u6210\u3084\u3001\u7528\u9014\u5225\u306b\u30c6\u30fc\u30d6\u30eb\u3092\u5206\u3051\u308b\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u5229\u7528\u3059\u308b\u5834\u5408\u306f\u3001systemd-networkd \u3084 NetworkManager \u306e\u6a5f\u80fd\u3060\u3051\u3067\u5b8c\u7d50\u3057\u306a\u3044\u30b1\u30fc\u30b9\u3082\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u5834\u5408\u3067\u3082\u3001\u6700\u4f4e\u9650\u6b21\u306e\u30eb\u30fc\u30eb\u3092\u5b88\u308b\u3068\u3001ENETUNREACH \u3092\u542b\u3080\u5230\u9054\u4e0d\u53ef\u554f\u984c\u306e\u518d\u767a\u30ea\u30b9\u30af\u3092\u6291\u3048\u3089\u308c\u307e\u3059\u3002<\/p> <ul> <li>\u624b\u4f5c\u696d\u3067\u5b9f\u884c\u3057\u305f <code>ip route<\/code> \/ <code>ip rule<\/code> \u30b3\u30de\u30f3\u30c9\u306f\u3001\u5fc5\u305a\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306b\u53cd\u6620\u3057\u3001\u9069\u7528\u624b\u9806\u3092\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u5316\u3059\u308b<\/li> <li>\u672c\u756a\u53cd\u6620\u524d\u306b\u30c6\u30b9\u30c8\u74b0\u5883\u3067\u540c\u3058\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u3092\u9069\u7528\u3057\u3001\u518d\u8d77\u52d5\u5f8c\u3082\u69cb\u6210\u304c\u7dad\u6301\u3055\u308c\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b<\/li> <li>\u8a2d\u5b9a\u306e\u5909\u66f4\u5c65\u6b74\u3092\u30d0\u30fc\u30b8\u30e7\u30f3\u7ba1\u7406\uff08Git \u7b49\uff09\u3067\u8a18\u9332\u3057\u3001\u904e\u53bb\u306e\u72b6\u614b\u306b\u623b\u305b\u308b\u3088\u3046\u306b\u3059\u308b<\/li> <\/ul> <p>\u3053\u3053\u307e\u3067\u3067\u3001ENETUNREACH \u3092\u907f\u3051\u308b\u305f\u3081\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u8a2d\u8a08\u30fb\u8a2d\u5b9a\u306e\u57fa\u790e\u3092\u6982\u89b3\u3057\u307e\u3057\u305f\u3002\u6b21\u7ae0\u304b\u3089\u306f\u3001\u5b9f\u969b\u306e\u969c\u5bb3\u306e\u6d41\u308c\u3092\u300c\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u300d\u3068\u3057\u3066\u6574\u7406\u3057\u3001\u3069\u306e\u6642\u70b9\u3067\u4f55\u3092\u78ba\u8a8d\u30fb\u8a18\u9332\u3057\u3066\u304a\u304f\u3068\u3001\u518d\u767a\u9632\u6b62\u306b\u5f79\u7acb\u3064\u306e\u304b\u3092\u5177\u4f53\u7684\u306b\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p> \r\n<a id=\"sec08\"><\/a>\r\n\r\n<p>\u3000<\/p> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u969c\u5bb3\u767a\u751f\u30ed\u30b0\u304b\u3089\u5fa9\u65e7\u307e\u3067\u3092\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u5316\u3057\u3066\u201c\u518d\u767a\u9632\u6b62\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u201d\u3092\u4f5c\u308b<\/h2> <p>ENETUNREACH \u3092\u306f\u3058\u3081\u3068\u3059\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5230\u9054\u4e0d\u53ef\u30a8\u30e9\u30fc\u306f\u3001\u4e00\u5ea6\u89e3\u6d88\u3057\u3066\u3057\u307e\u3046\u3068\u300c\u539f\u56e0\u304c\u66d6\u6627\u306a\u307e\u307e\u5fd8\u308c\u3089\u308c\u3066\u3057\u307e\u3046\u300d\u3053\u3068\u304c\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u306e\u7d50\u679c\u3001\u6570\u30ab\u6708\u5f8c\u306b\u540c\u69d8\u306e\u69cb\u6210\u5909\u66f4\u3084\u518d\u8d77\u52d5\u304c\u884c\u308f\u308c\u3001\u540c\u3058 ENETUNREACH \u304c\u518d\u767a\u3059\u308b\u3001\u3068\u3044\u3046\u30d1\u30bf\u30fc\u30f3\u304c\u7e70\u308a\u8fd4\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u3092\u9632\u3050\u306b\u306f\u3001\u969c\u5bb3\u306e\u6d41\u308c\u3092\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u3068\u3057\u3066\u8a18\u9332\u3057\u3001\u300c\u518d\u767a\u9632\u6b62\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u300d\u306b\u843d\u3068\u3057\u8fbc\u3080\u3053\u3068\u304c\u6709\u52b9\u3067\u3059\u3002<\/p> <p>\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u306f\u3001\u5c11\u306a\u304f\u3068\u3082\u6b21\u306e\u3088\u3046\u306a\u9805\u76ee\u3067\u6574\u7406\u3059\u308b\u3068\u3001\u5f8c\u304b\u3089\u8aad\u307f\u8fd4\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p> <table border=\"1\" cellspacing=\"0\" cellpadding=\"4\"> <tr> <th style=\"background-color:#eeeeee;\">\u6642\u523b<\/th> <th style=\"background-color:#eeeeee;\">\u51fa\u6765\u4e8b<\/th> <th style=\"background-color:#eeeeee;\">\u30ed\u30b0\u30fb\u30b3\u30de\u30f3\u30c9<\/th> <th style=\"background-color:#eeeeee;\">\u6240\u898b<\/th> <\/tr> <tr> <td>10:05<\/td> <td>\u76e3\u8996\u3067\u30a2\u30d7\u30ea\u758e\u901a\u30a8\u30e9\u30fc\u691c\u77e5<\/td> <td>\u76e3\u8996\u30c4\u30fc\u30eb\u306e\u30a2\u30e9\u30fc\u30c8\u30ed\u30b0<\/td> <td>HTTP \u306e\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u5897\u52a0<\/td> <\/tr> <tr> <td>10:10<\/td> <td>\u30a2\u30d7\u30ea\u30ed\u30b0\u3067 ENETUNREACH \u3092\u78ba\u8a8d<\/td> <td>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ed\u30b0<\/td> <td>\u7279\u5b9a\u306e\u5916\u90e8 API \u5b9b\u3066\u306e\u307f\u30a8\u30e9\u30fc<\/td> <\/tr> <tr> <td>10:15<\/td> <td><code>ip route get<\/code> \u5b9f\u884c<\/td> <td><code>ip route get \u5b9b\u5148IP<\/code><\/td> <td>\u300cNetwork is unreachable\u300d\u3068\u8868\u793a<\/td> <\/tr> <\/table> <p>\u3053\u306e\u3088\u3046\u306b\u3001\u6642\u523b\u30fb\u4e8b\u8c61\u30fb\u5b9f\u884c\u3057\u305f\u30b3\u30de\u30f3\u30c9\u30fb\u305d\u3053\u304b\u3089\u5f97\u3089\u308c\u305f\u6240\u898b\u3092 1 \u3064\u306e\u8868\u306b\u307e\u3068\u3081\u308b\u3053\u3068\u3067\u3001\u300c\u3069\u306e\u6bb5\u968e\u3067 ENETUNREACH \u304c\u5224\u660e\u3057\u305f\u306e\u304b\u300d\u300c\u3069\u306e\u6bb5\u968e\u3067\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u306e\u6b20\u843d\u304c\u78ba\u8a8d\u3067\u304d\u305f\u306e\u304b\u300d\u304c\u660e\u78ba\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <hr> <p>\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u304b\u3089\u518d\u767a\u9632\u6b62\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u3092\u4f5c\u308b\u969b\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u9805\u76ee\u304c\u3088\u304f\u76db\u308a\u8fbc\u307e\u308c\u307e\u3059\u3002<\/p> <ul> <li>\u69cb\u6210\u5909\u66f4\u306e\u624b\u9806\u66f8\u306b\u300c<code>ip route show<\/code> \u306e\u4e8b\u524d\u30fb\u4e8b\u5f8c\u6bd4\u8f03\u300d\u3092\u542b\u3081\u308b<\/li> <li>NetworkManager \/ systemd-networkd \u306e\u8a2d\u5b9a\u5909\u66f4\u3067\u306f\u3001\u300c\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306e\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u300d\u300c\u5909\u66f4\u5185\u5bb9\u306e\u30ec\u30d3\u30e5\u30fc\u300d\u300c\u518d\u8d77\u52d5\u5f8c\u306e\u758e\u901a\u78ba\u8a8d\u300d\u3092\u5fc5\u9808\u30b9\u30c6\u30c3\u30d7\u306b\u3059\u308b<\/li> <li>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ed\u30b0\u306b\u3001\u5b9b\u5148 IP \u3068 errno \u3092\u5e38\u306b\u8a18\u9332\u3059\u308b\u3088\u3046\u4fee\u6b63\u3059\u308b<\/li> <li>\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u306e\u76e3\u8996\uff08\u60f3\u5b9a\u3055\u308c\u308b\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u304c\u6d88\u3048\u305f\u3089\u30a2\u30e9\u30fc\u30c8\uff09\u3092\u5c0e\u5165\u3059\u308b<\/li> <\/ul> <p>\u3053\u306e\u3088\u3046\u306a\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u3092\u904b\u7528\u624b\u9806\u66f8\u306b\u7d44\u307f\u8fbc\u307f\u3001\u30ec\u30d3\u30e5\u30fc\u3084\u8a13\u7df4\u306e\u969b\u306b\u7e70\u308a\u8fd4\u3057\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3067\u3001\u300c\u30eb\u30fc\u30c8\u306e\u6d88\u5931\u304b\u3089 ENETUNREACH \u767a\u751f\u307e\u3067\u300d\u306e\u30d1\u30bf\u30fc\u30f3\u3092\u7d44\u7e54\u3068\u3057\u3066\u5b66\u7fd2\u3057\u3066\u3044\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6b21\u7ae0\u3067\u306f\u3001\u3055\u3089\u306b\u4e00\u6b69\u9032\u3081\u3066\u3001DR\uff08\u707d\u5bb3\u5fa9\u65e7\uff09\u3084\u30d5\u30a7\u30a4\u30eb\u30aa\u30fc\u30d0\u30fc\u69cb\u6210\u306e\u4e2d\u3067 ENETUNREACH \u3092\u3069\u3046\u4f4d\u7f6e\u3065\u3051\u308b\u304b\u3092\u6574\u7406\u3057\u307e\u3059\u3002<\/p> \r\n<a id=\"sec09\"><\/a>\r\n\r\n<p>\u3000<\/p> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">DR\u3068\u30d5\u30a7\u30a4\u30eb\u30aa\u30fc\u30d0\u30fc\u69cb\u6210\u3067ENETUNREACH\u3092\u201c\u60f3\u5b9a\u5185\u30a4\u30d9\u30f3\u30c8\u201d\u306b\u5909\u3048\u308b<\/h2> <p>\u672c\u756a\u74b0\u5883\u3067\u306f\u3001\u5358\u4e00\u30db\u30b9\u30c8\u30fb\u5358\u4e00\u56de\u7dda\u306e\u69cb\u6210\u306f\u5c11\u306a\u304f\u3001DR \u30b5\u30a4\u30c8\u3084\u30d5\u30a7\u30a4\u30eb\u30aa\u30fc\u30d0\u30fc\u69cb\u6210\u304c\u7d44\u307e\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u4e00\u822c\u7684\u3067\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u74b0\u5883\u3067\u306f\u3001\u300c\u3042\u308b\u7d4c\u8def\u304c\u5229\u7528\u4e0d\u80fd\u306b\u306a\u308b\u3053\u3068\u81ea\u4f53\u300d\u306f\u5b8c\u5168\u306b\u306f\u907f\u3051\u3089\u308c\u307e\u305b\u3093\u3002\u91cd\u8981\u306a\u306e\u306f\u3001\u300c\u5229\u7528\u4e0d\u80fd\u306b\u306a\u3063\u305f\u7d4c\u8def\u306b\u4f9d\u5b58\u3057\u3066\u3044\u308b\u901a\u4fe1\u304c\u3001\u3069\u308c\u304f\u3089\u3044\u306e\u6642\u9593 ENETUNREACH \u306e\u3088\u3046\u306a\u30a8\u30e9\u30fc\u3092\u8fd4\u3057\u7d9a\u3051\u308b\u304b\u300d\u3092\u5236\u5fa1\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p> <p>\u4f8b\u3048\u3070\u3001\u30d7\u30e9\u30a4\u30de\u30ea\u56de\u7dda\u3068\u30bb\u30ab\u30f3\u30c0\u30ea\u56de\u7dda\u3092\u6301\u3064\u69cb\u6210\u3067\u3001\u30d7\u30e9\u30a4\u30de\u30ea\u5074\u306e\u30eb\u30fc\u30bf\u969c\u5bb3\u304c\u767a\u751f\u3059\u308b\u3068\u3001\u4e00\u6642\u7684\u306b\u30d7\u30e9\u30a4\u30de\u30ea\u56de\u7dda\u5b9b\u3066\u306e\u30eb\u30fc\u30c8\u304c\u5931\u308f\u308c\u3001ENETUNREACH \u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u3068\u304d\u3001\u52d5\u7684\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30c8\u30b3\u30eb\u3084 VRRP \u76f8\u5f53\u306e\u4ed5\u7d44\u307f\u3067\u7d4c\u8def\u304c\u66f8\u304d\u63db\u3048\u3089\u308c\u308b\u307e\u3067\u306e\u9593\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u30a8\u30e9\u30fc\u3092\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002\u8a2d\u8a08\u306e\u89b3\u70b9\u3067\u306f\u3001\u3053\u306e\u6642\u9593\u3092\u3067\u304d\u308b\u3060\u3051\u77ed\u304f\u3057\u3001\u304b\u3064\u300c\u5207\u308a\u66ff\u3048\u4e2d\u306e\u30a8\u30e9\u30fc\u306f\u8a31\u5bb9\u3055\u308c\u308b\u300d\u3068\u3044\u3046\u524d\u63d0\u3092\u904b\u7528\u8a2d\u8a08\u306b\u7d44\u307f\u8fbc\u3080\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p> <p>DR\u30fb\u30d5\u30a7\u30a4\u30eb\u30aa\u30fc\u30d0\u30fc\u69cb\u6210\u306b\u304a\u3044\u3066\u306f\u3001\u6b21\u306e\u89b3\u70b9\u3067 ENETUNREACH \u3092\u6271\u3044\u307e\u3059\u3002<\/p> <ul> <li>\u30d5\u30a7\u30a4\u30eb\u30aa\u30fc\u30d0\u30fc\u6642\u306b\u3001\u3069\u306e\u7d4c\u8def\u304c\u4e00\u6642\u7684\u306b\u5931\u308f\u308c\u308b\u304b\u3092\u4e8b\u524d\u306b\u6d17\u3044\u51fa\u3059<\/li> <li>\u305d\u306e\u7d4c\u8def\u306b\u4f9d\u5b58\u3059\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u3001\u3069\u308c\u304f\u3089\u3044\u306e\u6642\u9593 ENETUNREACH \u3092\u8a31\u5bb9\u3067\u304d\u308b\u304b\u3092\u5408\u610f\u3057\u3066\u304a\u304f<\/li> <li>\u5207\u308a\u66ff\u3048\u8a66\u9a13\u6642\u306b\u3001\u5b9f\u969b\u306e ENETUNREACH \u767a\u751f\u6642\u9593\u3068\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30ea\u30c8\u30e9\u30a4\u6319\u52d5\u3092\u78ba\u8a8d\u3059\u308b<\/li> <\/ul> <hr> <p>\u5b9f\u969b\u306e\u8a2d\u8a08\u3067\u306f\u3001Red Hat \u7cfb Linux \u81ea\u4f53\u3088\u308a\u3082\u3001\u5468\u8fba\u306e\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u30fc\u3084\u30eb\u30fc\u30bf\u3001\u30af\u30e9\u30a6\u30c9\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u6319\u52d5\u304c\u652f\u914d\u7684\u306b\u306a\u308b\u3053\u3068\u3082\u591a\u304f\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u500b\u5225\u6848\u4ef6\u3067\u306f\u3001\u300cLinux \u5074\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u3001\u5468\u8fba\u6a5f\u5668\u30fb\u30af\u30e9\u30a6\u30c9\u30b5\u30fc\u30d3\u30b9\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\uff0f\u30d8\u30eb\u30b9\u30c1\u30a7\u30c3\u30af\u8a2d\u5b9a\u300d\u3092\u4e00\u4f53\u3068\u3057\u3066\u691c\u8a3c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u4e00\u822c\u7684\u306a\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3060\u3051\u3067\u306f\u30ab\u30d0\u30fc\u3057\u304d\u308c\u306a\u3044\u9818\u57df\u3067\u3042\u308a\u3001\u5b9f\u74b0\u5883\u306e\u69cb\u6210\u60c5\u5831\u3068\u30ed\u30b0\u3092\u3082\u3068\u306b\u3057\u305f\u500b\u5225\u691c\u8a3c\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p> <p>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240\u306e\u3088\u3046\u306a\u5c02\u9580\u5bb6\u306b\u4f9d\u983c\u3059\u308b\u3053\u3068\u3067\u3001\u5358\u306b ENETUNREACH \u3092\u89e3\u6d88\u3059\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u300c\u30d5\u30a7\u30a4\u30eb\u30aa\u30fc\u30d0\u30fc\u6642\u306b\u3069\u306e\u3088\u3046\u306a\u30a8\u30e9\u30fc\u304c\u3069\u306e\u7a0b\u5ea6\u767a\u751f\u3059\u308b\u304b\u300d\u300c\u305d\u306e\u9593\u306b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5074\u3067\u3069\u306e\u3088\u3046\u306a\u6319\u52d5\u3092\u53d6\u308b\u3079\u304d\u304b\u300d\u3092\u542b\u3081\u305f\u5168\u4f53\u8a2d\u8a08\u306e\u652f\u63f4\u3092\u53d7\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6b21\u7ae0\u3067\u306f\u3001\u3053\u3053\u307e\u3067\u306e\u5185\u5bb9\u3092\u8e0f\u307e\u3048\u3001\u300c\u3064\u306a\u304c\u3089\u306a\u3044\u300d\u3092\u9650\u308a\u306a\u304f\u30bc\u30ed\u306b\u8fd1\u3065\u3051\u308b\u305f\u3081\u306b\u3001\u8a2d\u8a08\u30fb\u76e3\u8996\u30fb\u624b\u9806\u66f8\u3092\u3069\u306e\u3088\u3046\u306b\u898b\u76f4\u3059\u3079\u304d\u304b\u3092\u307e\u3068\u3081\u307e\u3059\u3002<\/p> \r\n<a id=\"sec10\"><\/a>\r\n\r\n<p>\u3000<\/p> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u300c\u3064\u306a\u304c\u3089\u306a\u3044\u300d\u3092\u9650\u308a\u306a\u304f\u30bc\u30ed\u306b\u8fd1\u3065\u3051\u308b\u305f\u3081\u306b\u2015\u2015\u8a2d\u8a08\u30fb\u76e3\u8996\u30fb\u624b\u9806\u66f8\u3092\u3069\u3046\u898b\u76f4\u3059\u304b<\/h2> <p>\u3053\u3053\u307e\u3067\u3001ENETUNREACH \u304c\u793a\u3059\u610f\u5473\u304b\u3089\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u8a2d\u8a08\u30fbNetworkManager \u3084 systemd-networkd \u306e\u8a2d\u5b9a\u3001firewalld \u3068\u306e\u5883\u754c\u3001DR\uff0f\u30d5\u30a7\u30a4\u30eb\u30aa\u30fc\u30d0\u30fc\u69cb\u6210\u306b\u304a\u3051\u308b\u4f4d\u7f6e\u3065\u3051\u307e\u3067\u3001\u6bb5\u968e\u7684\u306b\u6574\u7406\u3057\u3066\u304d\u307e\u3057\u305f\u3002\u6700\u7d42\u7ae0\u3067\u306f\u3001\u305d\u308c\u3089\u3092\u307e\u3068\u3081\u3066\u300c\u8a2d\u8a08\u300d\u300c\u76e3\u8996\u300d\u300c\u624b\u9806\u66f8\u300d\u3068\u3044\u3046 3 \u3064\u306e\u89b3\u70b9\u304b\u3089\u3001\u5177\u4f53\u7684\u306b\u3069\u306e\u3088\u3046\u306a\u6539\u5584\u3092\u884c\u3046\u3068\u300cNetwork is unreachable\u300d\u30a8\u30e9\u30fc\u3092\u6e1b\u3089\u305b\u308b\u306e\u304b\u3092\u6574\u7406\u3057\u307e\u3059\u3002<\/p> <p>\u8a2d\u8a08\u306e\u89b3\u70b9\u3067\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u30dd\u30a4\u30f3\u30c8\u304c\u91cd\u8981\u3067\u3059\u3002<\/p> <ul> <li>\u30db\u30b9\u30c8\u5358\u4f4d\u3067\u306f\u306a\u304f\u3001\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u3068\u3057\u3066\u3069\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\u304c\u3069\u306e\u7528\u9014\u304b\u3092\u660e\u78ba\u306b\u3059\u308b<\/li> <li>\u7528\u9014\u3054\u3068\u306b\u300c\u901a\u5e38\u6642\u306e\u512a\u5148\u7d4c\u8def\u300d\u3068\u300c\u969c\u5bb3\u6642\u306e\u4ee3\u66ff\u7d4c\u8def\u300d\u3092\u6c7a\u3081\u3001\u30e1\u30c8\u30ea\u30c3\u30af\u3084\u30dd\u30ea\u30b7\u30fc\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306b\u53cd\u6620\u3059\u308b<\/li> <li>\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u69cb\u6210\u306e\u30bd\u30fc\u30b9\u30fb\u30aa\u30d6\u30fb\u30c8\u30a5\u30eb\u30fc\u30b9\u3092\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\uff0f\u63a5\u7d9a\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u306b\u4e00\u5143\u5316\u3059\u308b<\/li> <\/ul> <p>\u76e3\u8996\u306e\u89b3\u70b9\u3067\u306f\u3001\u5358\u306b\u30dd\u30fc\u30c8\u76e3\u8996\u3084 ping \u76e3\u8996\u3060\u3051\u3067\u306a\u304f\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u306e\u7570\u5e38\u3092\u691c\u77e5\u3059\u308b\u4ed5\u7d44\u307f\u304c\u6709\u52b9\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u300c\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u304c\u6d88\u3048\u305f\u3089\u30a2\u30e9\u30fc\u30c8\u3092\u51fa\u3059\u300d\u300c\u7279\u5b9a\u306e\u5b9b\u5148\u3078\u306e <code>ip route get<\/code> \u306e\u7d50\u679c\u304c\u5909\u5316\u3057\u305f\u3089\u691c\u77e5\u3059\u308b\u300d\u3068\u3044\u3063\u305f\u76e3\u8996\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304b\u3089 ENETUNREACH \u304c\u591a\u767a\u3059\u308b\u524d\u306b\u5146\u5019\u3092\u6349\u3048\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p> <hr> <p>\u624b\u9806\u66f8\u306e\u89b3\u70b9\u3067\u306f\u3001\u69cb\u6210\u5909\u66f4\u3084\u969c\u5bb3\u5bfe\u5fdc\u306e\u305f\u3073\u306b\u6b21\u306e\u3088\u3046\u306a\u30b9\u30c6\u30c3\u30d7\u3092\u8e0f\u3080\u3053\u3068\u3092\u6a19\u6e96\u5316\u3059\u308b\u306e\u304c\u671b\u307e\u3057\u3044\u3067\u3057\u3087\u3046\u3002<\/p> <ul> <li>\u4e8b\u524d\u306b\u73fe\u72b6\u306e <code>ip route show<\/code> \u3092\u63a1\u53d6\u3057\u3001\u4f5c\u696d\u5f8c\u306e\u7d50\u679c\u3068\u6bd4\u8f03\u3059\u308b<\/li> <li>NetworkManager \/ systemd-networkd \u306e\u8a2d\u5b9a\u5909\u66f4\u306f\u3001\u5fc5\u305a\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u3068\u3057\u3066\u6b8b\u3057\u3001\u518d\u8d77\u52d5\u8a66\u9a13\u3092\u542b\u3081\u3066\u78ba\u8a8d\u3059\u308b<\/li> <li>\u969c\u5bb3\u6642\u306b\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30ed\u30b0\u306e errno \u3068\u5b9b\u5148 IP \u3092\u78ba\u8a8d\u3057\u3001ENETUNREACH \u306e\u6709\u7121\u3092\u5207\u308a\u5206\u3051\u306e\u8d77\u70b9\u3068\u3059\u308b<\/li> <li>\u5bfe\u5fdc\u5f8c\u306f\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\u3068\u518d\u767a\u9632\u6b62\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u3092\u66f4\u65b0\u3057\u3001\u30ec\u30d3\u30e5\u30fc\u306e\u5834\u3067\u5171\u6709\u3059\u308b<\/li> <\/ul> <p>\u3053\u3053\u3067\u6271\u3063\u305f\u5185\u5bb9\u306f\u3001\u3042\u304f\u307e\u3067\u4e00\u822c\u7684\u306a\u8a2d\u8a08\u30fb\u904b\u7528\u306e\u6307\u91dd\u3067\u3059\u3002\u5b9f\u969b\u306e\u6848\u4ef6\u3067\u306f\u3001\u30aa\u30f3\u30d7\u30ec\u3068\u30af\u30e9\u30a6\u30c9\u306e\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u69cb\u6210\u3001\u30bc\u30ed\u30c8\u30e9\u30b9\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3001\u30de\u30eb\u30c1\u30ea\u30fc\u30b8\u30e7\u30f3 DR\u3001\u30b3\u30f3\u30c6\u30ca\u57fa\u76e4\u3084\u30b5\u30fc\u30d3\u30b9\u30e1\u30c3\u30b7\u30e5\u306a\u3069\u3001\u591a\u6570\u306e\u8981\u7d20\u304c\u7d61\u307f\u307e\u3059\u3002\u305d\u306e\u3088\u3046\u306a\u74b0\u5883\u3067\u306f\u3001\u5358\u7d14\u306a\u300c\u30c7\u30d5\u30a9\u30eb\u30c8\u30eb\u30fc\u30c8\u306e\u6709\u7121\u300d\u3060\u3051\u3067\u306f\u8aac\u660e\u3067\u304d\u306a\u3044 ENETUNREACH \u3082\u767a\u751f\u3057\u5f97\u307e\u3059\u3002<\/p> <p>\u305d\u306e\u305f\u3081\u3001\u300c\u4e00\u822c\u8ad6\u3068\u3057\u3066\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u300d\u3092\u62bc\u3055\u3048\u305f\u3046\u3048\u3067\u3001\u5177\u4f53\u7684\u306a\u30b7\u30b9\u30c6\u30e0\u69cb\u6210\u30fb\u5951\u7d04\u6761\u4ef6\u30fb\u904b\u7528\u4f53\u5236\u306b\u5fdc\u3058\u305f\u500b\u5225\u691c\u8a3c\u3092\u884c\u3046\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u7279\u306b\u3001\u30df\u30c3\u30b7\u30e7\u30f3\u30af\u30ea\u30c6\u30a3\u30ab\u30eb\u306a\u30b7\u30b9\u30c6\u30e0\u3084\u3001\u969c\u5bb3\u6642\u306e\u5f71\u97ff\u7bc4\u56f2\u304c\u5927\u304d\u3044\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u8a2d\u8a08\u6bb5\u968e\u304b\u3089\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30fb\u30d5\u30a7\u30a4\u30eb\u30aa\u30fc\u30d0\u30fc\u30fb\u30ed\u30b0\u8a2d\u8a08\u30fb\u76e3\u8996\u8a2d\u8a08\u3092\u4e00\u4f53\u3068\u3057\u3066\u691c\u8a0e\u3059\u308b\u3053\u3068\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002<\/p> <p>\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240\u3067\u306f\u3001\u3053\u3046\u3057\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u30b5\u30fc\u30d0\u30fc\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u307e\u305f\u3044\u3060\u8a2d\u8a08\u30fb\u691c\u8a3c\u30fb\u969c\u5bb3\u5bfe\u5fdc\u652f\u63f4\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002\u3082\u3057\u3001\u73fe\u5728\u904b\u7528\u4e2d\u306e Red Hat \u7cfb Linux \u74b0\u5883\u3067 ENETUNREACH \u3092\u542b\u3080\u5230\u9054\u4e0d\u53ef\u30a8\u30e9\u30fc\u304c\u7e70\u308a\u8fd4\u3057\u767a\u751f\u3057\u3066\u3044\u308b\u3001\u3042\u308b\u3044\u306f\u4eca\u5f8c\u306e DR\u30fb\u30d5\u30a7\u30a4\u30eb\u30aa\u30fc\u30d0\u30fc\u8a2d\u8a08\u306b\u4e0d\u5b89\u304c\u3042\u308b\u3068\u3044\u3063\u305f\u5834\u5408\u306b\u306f\u3001\u4e00\u822c\u8ad6\u3060\u3051\u3067\u5224\u65ad\u305b\u305a\u3001\u4e00\u5ea6\u5c02\u9580\u5bb6\u306b\u76f8\u8ac7\u3059\u308b\u3053\u3068\u3092\u691c\u8a0e\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p> \r\n\r\n<p>\u3000<\/p> <h2 style=\"font-size:1.2em; font-weight:bold; text-decoration:underline;\">\u4e3b\u8981\u30d7\u30ed\u30b0\u30e9\u30e0\u8a00\u8a9e\u3054\u3068\u306b\u898b\u843d\u3068\u3057\u304c\u3061\u306aENETUNREACH\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u306e\u6ce8\u610f\u70b9<\/h2> <p>\u6700\u5f8c\u306b\u3001\u73fe\u5728\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u308b\u4ee3\u8868\u7684\u306a\u30d7\u30ed\u30b0\u30e9\u30e0\u8a00\u8a9e\u3054\u3068\u306b\u3001ENETUNREACH \u3092\u542b\u3080\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a8\u30e9\u30fc\u306e\u6271\u3044\u3067\u6ce8\u610f\u3057\u3066\u304a\u304d\u305f\u3044\u30dd\u30a4\u30f3\u30c8\u3092\u7c21\u6f54\u306b\u6574\u7406\u3057\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u8a00\u8a9e\u4ed5\u69d8\u3084\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u304c\u3069\u306e\u3088\u3046\u306a\u5f62\u3067\u30a8\u30e9\u30fc\u3092\u8868\u73fe\u3059\u308b\u304b\u306b\u7740\u76ee\u3057\u3001\u300c\u30ed\u30b0\u306e\u6b8b\u3057\u65b9\u300d\u3068\u300c\u30ea\u30c8\u30e9\u30a4\u6226\u7565\u300d\u306e\u89b3\u70b9\u304b\u3089\u307e\u3068\u3081\u307e\u3059\u3002<\/p> <p>\u307e\u305a C \/ C++ \u3067\u306f\u3001\u30bd\u30b1\u30c3\u30c8 API \u3092\u76f4\u63a5\u5229\u7528\u3059\u308b\u5834\u9762\u304c\u591a\u304f\u3001<code>connect()<\/code> \/ <code>send()<\/code> \/ <code>recv()<\/code> \u306e\u623b\u308a\u5024\u3068 <code>errno<\/code> \u3092\u81ea\u524d\u3067\u5224\u5b9a\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002ENETUNREACH \u304c\u8fd4\u3063\u3066\u3044\u308b\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5074\u3067\u300c\u4e00\u6642\u7684\u30a8\u30e9\u30fc\u300d\u3068\u3057\u3066\u7121\u5236\u9650\u306b\u30ea\u30c8\u30e9\u30a4\u3057\u3066\u3057\u307e\u3046\u3068\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u69cb\u6210\u304c\u76f4\u3089\u306a\u3044\u9650\u308a\u6c38\u9060\u306b\u30a8\u30e9\u30fc\u3092\u7e70\u308a\u8fd4\u3059\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001errno \u306e\u5024\u306b\u5fdc\u3058\u3066\u300c\u518d\u8a66\u884c\u3059\u3079\u304d\u30a8\u30e9\u30fc\u300d\uff08\u4e00\u6642\u7684\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u969c\u5bb3\u3084\u6df7\u96d1\u306a\u3069\uff09\u3068\u300c\u69cb\u6210\u554f\u984c\u304c\u7591\u308f\u308c\u308b\u30a8\u30e9\u30fc\u300d\uff08ENETUNREACH \u3084 EINVAL \u306a\u3069\uff09\u3092\u5206\u3051\u3066\u6271\u3046\u8a2d\u8a08\u304c\u91cd\u8981\u3067\u3059\u3002<\/p> <p>Java \u3067\u306f\u3001\u30bd\u30b1\u30c3\u30c8\u3084 HTTP \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u30a8\u30e9\u30fc\u306f <code>IOException<\/code> \u306e\u30b5\u30d6\u30af\u30e9\u30b9\u3068\u3057\u3066\u8868\u73fe\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u304f\u3001<code>NoRouteToHostException<\/code> \u3084 <code>ConnectException<\/code> \u3068\u3044\u3063\u305f\u4f8b\u5916\u540d\u3068\u3057\u3066\u73fe\u308c\u307e\u3059\u3002\u30b9\u30bf\u30c3\u30af\u30c8\u30ec\u30fc\u30b9\u3060\u3051\u3092\u30ed\u30b0\u306b\u6b8b\u3057\u3001\u4f8b\u5916\u7a2e\u5225\u3084\u30e1\u30c3\u30bb\u30fc\u30b8\uff08\u300cNetwork is unreachable\u300d\u306a\u3069\uff09\u3092\u96c6\u7d04\u30fb\u5206\u6790\u3057\u3066\u3044\u306a\u3044\u3068\u3001ENETUNREACH \u3068\u4ed6\u306e\u30a8\u30e9\u30fc\u3092\u7d71\u8a08\u7684\u306b\u533a\u5225\u3059\u308b\u3053\u3068\u304c\u96e3\u3057\u304f\u306a\u308a\u307e\u3059\u3002Spring \u306a\u3069\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3092\u5229\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u4f8b\u5916\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u5c64\u3067\u4f8b\u5916\u7a2e\u5225\u3092\u5206\u985e\u3057\u3001\u76e3\u8996\u3068\u306e\u9023\u643a\uff08\u7279\u5b9a\u306e\u4f8b\u5916\u304c\u4e00\u5b9a\u56de\u6570\u4ee5\u4e0a\u767a\u751f\u3057\u305f\u5834\u5408\u306b\u30a2\u30e9\u30fc\u30c8\u3092\u4e0a\u3052\u308b\u306a\u3069\uff09\u3092\u691c\u8a0e\u3059\u308b\u3068\u3088\u3044\u3067\u3057\u3087\u3046\u3002<\/p> <p>Python \u3067\u306f\u3001<code>socket<\/code> \u30e2\u30b8\u30e5\u30fc\u30eb\u3084 <code>requests<\/code> \u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u901a\u3058\u3066\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u901a\u4fe1\u3092\u884c\u3046\u3053\u3068\u304c\u591a\u304f\u3001\u30a8\u30e9\u30fc\u306f <code>OSError<\/code> \u3084 <code>requests.exceptions.*<\/code> \u306e\u5f62\u3067\u73fe\u308c\u307e\u3059\u3002Linux \u4e0a\u3067 ENETUNREACH \u304c\u767a\u751f\u3057\u305f\u5834\u5408\u3001<code>OSError<\/code> \u306e <code>errno<\/code> \u5c5e\u6027\u306b 101 \u304c\u30bb\u30c3\u30c8\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5074\u306e\u30b3\u30fc\u30c9\u3067\u305d\u308c\u3092\u660e\u793a\u7684\u306b\u78ba\u8a8d\u3057\u3066\u3044\u306a\u3044\u3068\u3001\u300c\u30bf\u30a4\u30e0\u30a2\u30a6\u30c8\u300d\u3084\u300c\u63a5\u7d9a\u62d2\u5426\u300d\u3068\u540c\u5217\u306b\u6271\u308f\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u30ea\u30c8\u30e9\u30a4\u51e6\u7406\u3092\u5b9f\u88c5\u3059\u308b\u969b\u306b\u306f\u3001\u300cOS \u30ec\u30d9\u30eb\u306e errno \u306b\u57fa\u3065\u304f\u5206\u5c90\u300d\u300cHTTP \u30b9\u30c6\u30fc\u30bf\u30b9\u30b3\u30fc\u30c9\u306b\u57fa\u3065\u304f\u5206\u5c90\u300d\u306a\u3069\u3092\u6574\u7406\u3057\u3001ENETUNREACH \u3092\u7121\u5236\u9650\u306a\u30ea\u30c8\u30e9\u30a4\u306e\u5bfe\u8c61\u304b\u3089\u5916\u3059\u8a2d\u8a08\u304c\u671b\u307e\u3057\u3044\u3068\u8a00\u3048\u307e\u3059\u3002<\/p> <p>Go \u8a00\u8a9e\u3067\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a8\u30e9\u30fc\u306f <code>net.Error<\/code> \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5b9f\u88c5\u3057\u305f\u30a8\u30e9\u30fc\u3068\u3057\u3066\u8fd4\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u304f\u3001<code>Timeout()<\/code> \u3084 <code>Temporary()<\/code> \u30e1\u30bd\u30c3\u30c9\u306e\u7d50\u679c\u3067\u300c\u518d\u8a66\u884c\u3059\u3079\u304d\u304b\u3069\u3046\u304b\u300d\u3092\u5224\u65ad\u3059\u308b\u30d1\u30bf\u30fc\u30f3\u304c\u4e00\u822c\u7684\u3067\u3059\u3002\u305f\u3060\u3057\u3001ENETUNREACH \u306e\u3088\u3046\u306b\u69cb\u6210\u554f\u984c\u3092\u793a\u5506\u3059\u308b\u30a8\u30e9\u30fc\u3092\u300cTemporary\u300d\u3068\u8aa4\u3063\u3066\u6271\u3046\u3068\u3001goroutine \u304c\u7121\u5236\u9650\u306b\u30ea\u30c8\u30e9\u30a4\u3092\u7e70\u308a\u8fd4\u3057\u3001\u30b7\u30b9\u30c6\u30e0\u5168\u4f53\u306e\u8ca0\u8377\u5897\u5927\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30a8\u30e9\u30fc\u6587\u5b57\u5217\u306e\u4e2d\u306b\u300cno route to host\u300d\u3084\u300cnetwork is unreachable\u300d\u3068\u3044\u3063\u305f\u6587\u8a00\u304c\u542b\u307e\u308c\u3066\u3044\u306a\u3044\u304b\u3092\u78ba\u8a8d\u3057\u3001\u30ed\u30b0\u306b\u660e\u793a\u7684\u306b\u6b8b\u3059\u5b9f\u88c5\u3092\u691c\u8a0e\u3059\u308b\u3068\u3001\u904b\u7528\u5074\u3067\u306e\u5206\u6790\u304c\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059\u3002<\/p> <p>Node.js \/ JavaScript \u3067\u306f\u3001HTTP \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3084 TCP \u30bd\u30b1\u30c3\u30c8\u306e\u30a8\u30e9\u30fc\u304c <code>ECONNREFUSED<\/code> \u3084 <code>ENETUNREACH<\/code> \u3068\u3044\u3063\u305f\u30b3\u30fc\u30c9\u3092\u6301\u3064 <code>Error<\/code> \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u3057\u3066\u6e21\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u975e\u540c\u671f\u51e6\u7406\u306e\u30c1\u30a7\u30fc\u30f3\u306e\u4e2d\u3067\u30a8\u30e9\u30fc\u3092\u63e1\u308a\u3064\u3076\u3057\u3066\u3057\u307e\u3046\u3068\u3001\u6700\u7d42\u7684\u306b\u3069\u306e\u7a2e\u985e\u306e\u30a8\u30e9\u30fc\u304c\u3069\u308c\u3060\u3051\u8d77\u3053\u3063\u3066\u3044\u308b\u306e\u304b\u3092\u628a\u63e1\u3067\u304d\u306a\u304f\u306a\u308a\u307e\u3059\u3002Promise \u3084 async\/await \u3092\u5229\u7528\u3059\u308b\u5834\u5408\u3067\u3082\u3001\u30a8\u30e9\u30fc\u30b3\u30fc\u30c9\u306b\u5fdc\u3058\u305f\u5206\u985e\u30ed\u30b0\uff08\u30e1\u30c8\u30ea\u30af\u30b9\uff09\u3092\u6b8b\u3057\u3001\u300c\u3069\u306e\u30b5\u30fc\u30d3\u30b9\u9593\u901a\u4fe1\u3067 ENETUNREACH \u304c\u591a\u767a\u3057\u3066\u3044\u308b\u304b\u300d\u3092\u53ef\u8996\u5316\u3059\u308b\u3053\u3068\u304c\u3001\u69cb\u6210\u554f\u984c\u306e\u65e9\u671f\u767a\u898b\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002<\/p> <p>\u3044\u305a\u308c\u306e\u8a00\u8a9e\u3067\u3082\u5171\u901a\u3059\u308b\u306e\u306f\u3001ENETUNREACH \u3092\u300c\u901a\u5e38\u306e\u4e00\u6642\u7684\u30a8\u30e9\u30fc\u300d\u3068\u540c\u5217\u306b\u6271\u3063\u3066\u7121\u6761\u4ef6\u306b\u30ea\u30c8\u30e9\u30a4\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u300c\u69cb\u6210\u30fb\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30fb\u904b\u7528\u624b\u9806\u3092\u898b\u76f4\u3059\u3079\u304d\u30b7\u30b0\u30ca\u30eb\u300d\u3068\u3057\u3066\u6271\u3046\u3053\u3068\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u306b\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b3\u30fc\u30c9\u5074\u3067 errno \u3084\u4f8b\u5916\u7a2e\u5225\u3092\u304d\u3061\u3093\u3068\u30ed\u30b0\u306b\u6b8b\u3057\u3001\u76e3\u8996\u3084\u30a2\u30e9\u30fc\u30c8\u8a2d\u8a08\u3068\u9023\u643a\u3055\u305b\u308b\u3053\u3068\u304c\u6b20\u304b\u305b\u307e\u305b\u3093\u3002\u500b\u5225\u306e\u8a00\u8a9e\u30fb\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3054\u3068\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u306f\u3001\u672c\u8a18\u4e8b\u306e\u7bc4\u56f2\u3092\u8d85\u3048\u308b\u90e8\u5206\u3082\u591a\u304f\u542b\u307e\u308c\u307e\u3059\u304c\u3001\u5b9f\u969b\u306e\u30b7\u30b9\u30c6\u30e0\u69cb\u6210\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u691c\u8a0e\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u5805\u7262\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a8\u30e9\u30fc\u51e6\u7406\u304c\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p> <p>\u3082\u3057\u3001\u7279\u5b9a\u306e\u8a00\u8a9e\u3084\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3067 ENETUNREACH \u3092\u542b\u3080\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a8\u30e9\u30fc\u51e6\u7406\u306e\u8a2d\u8a08\u306b\u60a9\u3093\u3067\u3044\u308b\u5834\u5408\u306f\u3001\u30a4\u30f3\u30d5\u30e9\u69cb\u6210\u3068\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30b3\u30fc\u30c9\u306e\u4e21\u9762\u304b\u3089\u8a55\u4fa1\u30fb\u63d0\u6848\u304c\u3067\u304d\u308b\u5c02\u9580\u5bb6\u306b\u76f8\u8ac7\u3059\u308b\u3053\u3068\u304c\u6709\u52b9\u3067\u3059\u3002\u682a\u5f0f\u4f1a\u793e\u60c5\u5831\u5de5\u5b66\u7814\u7a76\u6240\u3067\u306f\u3001Linux \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5b9f\u88c5\u306e\u4e21\u65b9\u3092\u8e0f\u307e\u3048\u305f\u89b3\u70b9\u304b\u3089\u3001\u30ed\u30b0\u8a2d\u8a08\u3084\u30a8\u30e9\u30fc\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0\u65b9\u91dd\u306e\u898b\u76f4\u3057\u3092\u542b\u3080\u652f\u63f4\u3082\u884c\u3063\u3066\u3044\u307e\u3059\u3002<\/p> \r\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e68e195 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e68e195\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-dcd8bb4\" data-id=\"dcd8bb4\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a382773 elementor-widget elementor-widget-spacer\" data-id=\"a382773\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1424eb2d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1424eb2d\" data-element_type=\"section\" data-settings=\"{&quot;_ha_eqh_enable&quot;:false}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-67ccd676\" data-id=\"67ccd676\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f8e1b93 elementor-widget elementor-widget-text-editor\" data-id=\"f8e1b93\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<style>h1.dai {    display: inline-block;    font-weight: bold;    border-left: solid 5px #38b3f2;    border-bottom: solid 1px #38b3f2;    margin-top: 25px; \/* \u4e0a\u306e\u7a7a\u767d\u30922\u500d *\/    margin-bottom: 5px;    padding: 5px 5px 5px 5px;    font-size: 18px; \/* \u6587\u5b57\u306e\u5927\u304d\u3055\u309218px\u306b\u8a2d\u5b9a *\/}h2.fukudai {    display: inline-block;    font-weight: bold;    border-left: solid 5px #38b3f2;    border-bottom: solid 1px #38b3f2;    margin-top: 25px; \/* \u4e0a\u306e\u7a7a\u767d\u30922\u500d *\/    margin-bottom: 5px;    padding: 5px 5px 5px 5px;    font-size: 18px; \/* \u6587\u5b57\u306e\u5927\u304d\u3055\u309218px\u306b\u8a2d\u5b9a *\/}.fukudai {    display: inline-block;    font-weight: bold;    border-left: solid 5px #38b3f2;    border-bottom: solid 1px #38b3f2;    margin: 0 auto 50px;    padding: 5px 5px 5px 5px;    font-size: 18px; \/* \u6587\u5b57\u306e\u5927\u304d\u3055\u309218px\u306b\u8a2d\u5b9a *\/}.fukudai {    display: inline-block;    font-weight: bold;    border-left: solid 5px #38b3f2;    border-bottom: solid 1px #38b3f2;    margin: 0 auto 50px;    padding: 5px 5px 5px 5px;    font-size: 18px; \/* \u6587\u5b57\u306e\u5927\u304d\u3055\u309218px\u306b\u8a2d\u5b9a *\/}<\/style><h2 class='fukudai'>\u306f\u3058\u3081\u306b<\/h2><br><p>     Red 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