{"id":233,"date":"2025-04-12T18:13:00","date_gmt":"2025-04-12T09:13:00","guid":{"rendered":"https:\/\/ccna-curriculum.tech-village.co.jp\/?p=233"},"modified":"2025-10-12T13:49:14","modified_gmt":"2025-10-12T04:49:14","slug":"osfp%ef%bc%88%e8%a8%ad%e5%ae%9a%e3%83%bb%e6%93%8d%e4%bd%9c%ef%bc%89","status":"publish","type":"post","link":"https:\/\/ccna-curriculum.tech-village.co.jp\/?p=233","title":{"rendered":"OSFP\uff08\u8a2d\u5b9a\u30fb\u64cd\u4f5c\uff09"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">OSPF\u306e\u30d7\u30ed\u30bb\u30b9\u8d77\u52d5\u3068\u57fa\u672c\u8a2d\u5b9a<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">OSPF\u3092\u30eb\u30fc\u30bf\u3067\u4f7f\u3048\u308b\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u307e\u305a\u30eb\u30fc\u30bf\u4e0a\u3067\u300cOSPF\u30d7\u30ed\u30bb\u30b9\u300d\u3092\u7acb\u3061\u4e0a\u3052\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002Cisco\u30eb\u30fc\u30bf\u3067\u306f\u30011\u53f0\u306e\u6a5f\u5668\u306e\u4e2d\u3067\u8907\u6570\u306eOSPF\u30d7\u30ed\u30bb\u30b9\u3092\u4e26\u884c\u3057\u3066\u52d5\u304b\u3059\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002\u3053\u306e\u3068\u304d\u3001\u305d\u308c\u305e\u308c\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u533a\u5225\u3059\u308b\u305f\u3081\u306b\u300c\u30d7\u30ed\u30bb\u30b9ID\u300d\u3068\u3044\u3046\u756a\u53f7\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d7\u30ed\u30bb\u30b9ID\u306f1\u304b\u308965535\u307e\u3067\u306e\u7bc4\u56f2\u3067\u81ea\u7531\u306b\u6c7a\u3081\u3089\u308c\u307e\u3059\u304c\u3001\u91cd\u8981\u306a\u306e\u306f<strong><span class=\"swl-marker mark_yellow\">\u3053\u306e\u756a\u53f7\u306f\u81ea\u5206\u306e\u30eb\u30fc\u30bf\u5185\u90e8\u3060\u3051\u3067\u610f\u5473\u3092\u6301\u3064<\/span><\/strong>\u3068\u3044\u3046\u70b9\u3067\u3059\u3002\u3064\u307e\u308a\u3001\u96a3\u306e\u30eb\u30fc\u30bf\u3068\u30d7\u30ed\u30bb\u30b9ID\u3092\u63c3\u3048\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305f\u3060\u3057\u3001\u904b\u7528\u3084\u7ba1\u7406\u3092\u3057\u3084\u3059\u304f\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u5468\u56f2\u306e\u30eb\u30fc\u30bf\u3068\u7d71\u4e00\u3057\u3066\u304a\u304f\u306e\u304c\u4e00\u822c\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">OSPF\u30d7\u30ed\u30bb\u30b9\u3092\u7acb\u3061\u4e0a\u3052\u308b\u30b3\u30de\u30f3\u30c9<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>(config)# router ospf process-id<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u3048\u3070\u3001\u30d7\u30ed\u30bb\u30b9ID\u3092\u300c1\u300d\u3068\u3057\u3066\u8d77\u52d5\u3059\u308b\u5834\u5408\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(config)# router ospf 1<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3082\u3057\u30d7\u30ed\u30bb\u30b9\u3092\u505c\u6b62\u3055\u305b\u305f\u3044\u5834\u5408\u306b\u306f\u300cno\u300d\u3092\u4ed8\u3051\u3066\u6b21\u306e\u3088\u3046\u306b\u5165\u529b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(config)# no router ospf 1<\/code><\/pre>\n\n\n\n<p class=\"is-style-icon_pen wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\uff1a\u300c\u30d7\u30ed\u30bb\u30b9ID\u306f\u30ed\u30fc\u30ab\u30eb\u3067\u306e\u307f\u610f\u5473\u3092\u6301\u3061\u3001\u30cd\u30a4\u30d0\u30fc\u3068\u4e00\u81f4\u3055\u305b\u308b\u5fc5\u8981\u306f\u306a\u3044\u300d\u3068\u3044\u3046\u70b9\u304c\u3088\u304f\u554f\u308f\u308c\u308b\u306e\u3067\u5fc5\u305a\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">OSPF\u3092\u6709\u52b9\u5316\u3059\u308b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3068\u30a8\u30ea\u30a2\u6307\u5b9a<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d7\u30ed\u30bb\u30b9\u3092\u8d77\u52d5\u3057\u305f\u3060\u3051\u3067\u306fOSPF\u306f\u307e\u3060\u52d5\u4f5c\u3057\u307e\u305b\u3093\u3002\u5b9f\u969b\u306b\u3069\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3067OSPF\u3092\u4f7f\u3046\u306e\u304b\u3001\u3055\u3089\u306b\u305d\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u304c\u3069\u306e\u30a8\u30ea\u30a2\u306b\u5c5e\u3059\u308b\u306e\u304b\u3092\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3092\u8a2d\u5b9a\u3059\u308b\u305f\u3081\u306b\u4f7f\u3046\u306e\u304c <span class=\"swl-marker mark_yellow\"><strong>network\u30b3\u30de\u30f3\u30c9<\/strong> <\/span>\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8a2d\u5b9a\u30b3\u30de\u30f3\u30c9\u306e\u5f62\u5f0f<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>(config-router)# network address wildcard-mask area area-id<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u3067\u306e\u5f15\u6570\u306e\u610f\u5473\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>address<\/strong><br>OSPF\u3092\u6709\u52b9\u5316\u3057\u305f\u3044\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u307e\u305f\u306f\u305d\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u8a2d\u5b9a\u3055\u308c\u305fIP\u30a2\u30c9\u30ec\u30b9\u3067\u6307\u5b9a\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>wildcard-mask<\/strong><br>\u3069\u306e\u90e8\u5206\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u306e\u304b\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306e\u300c\u9006\u300d\u306e\u3088\u3046\u306a\u8003\u3048\u65b9\u3067\u30010\u306a\u3089\u30c1\u30a7\u30c3\u30af\u3059\u308b\u30011\u306a\u3089\u7121\u8996\u3059\u308b\u3068\u3044\u3046\u30eb\u30fc\u30eb\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>area-id<\/strong><br>\u305d\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5c5e\u3055\u305b\u305f\u3044\u30a8\u30ea\u30a2\u756a\u53f7\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u7279\u306b\u57fa\u672c\u3068\u306a\u308b\u300c\u30a8\u30ea\u30a20\uff08\u30d0\u30c3\u30af\u30dc\u30fc\u30f3\u30a8\u30ea\u30a2\uff09\u300d\u306f\u5fc5\u305a\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">\u8a2d\u5b9a\u4f8b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30eb\u30fc\u30bf\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b <code>172.16.1.1\/24<\/code> \u304c\u5272\u308a\u5f53\u3066\u3089\u308c\u3066\u304a\u308a\u3001\u305d\u308c\u3092\u30a8\u30ea\u30a20\u3067\u6709\u52b9\u5316\u3059\u308b\u5834\u5408\u306e\u4f8b\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(config-router)# network 172.16.1.0 0.0.0.255 area 0<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305f\u306f\u3001IP\u30a2\u30c9\u30ec\u30b9\u305d\u306e\u3082\u306e\u3092\u6307\u5b9a\u3057\u3066\u3082\u304b\u307e\u3044\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(config-router)# network 172.16.1.1 0.0.0.0 area 0<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9\u30de\u30b9\u30af\u306e\u8003\u3048\u65b9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9\u30de\u30b9\u30af\u306fOSPF\u8a2d\u5b9a\u3067\u5fc5\u305a\u51fa\u3066\u304f\u308b\u91cd\u8981\u306a\u6982\u5ff5\u3067\u3059\u300232\u30d3\u30c3\u30c8\u306e\u6570\u5024\u3092\u30c9\u30c3\u30c8\u3067\u533a\u5207\u3063\u305f\u5f62\u3067\u66f8\u304d\u3001\u6b21\u306e\u30eb\u30fc\u30eb\u3067\u52d5\u4f5c\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>0 \u306e\u30d3\u30c3\u30c8<\/strong> \u2192 \u6307\u5b9a\u3057\u305fIP\u30a2\u30c9\u30ec\u30b9\u306e\u30d3\u30c3\u30c8\u3092\u300c\u78ba\u8a8d\u3059\u308b\u300d<\/li>\n\n\n\n<li><strong>1 \u306e\u30d3\u30c3\u30c8<\/strong> \u2192 \u6307\u5b9a\u3057\u305fIP\u30a2\u30c9\u30ec\u30b9\u306e\u30d3\u30c3\u30c8\u3092\u300c\u7121\u8996\u3059\u308b\u300d<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u305f\u3068\u3048\u3070\u3001<code>0.0.0.255<\/code> \u306f\u300c\u6700\u521d\u306e3\u30aa\u30af\u30c6\u30c3\u30c8\u306f\u53b3\u5bc6\u306b\u78ba\u8a8d\u3057\u3001\u6700\u5f8c\u306e\u30aa\u30af\u30c6\u30c3\u30c8\u306f\u7121\u8996\u3059\u308b\u300d\u3068\u3044\u3046\u610f\u5473\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af <code>\/24<\/code> \u3068\u540c\u3058\u7bc4\u56f2\u3092\u8868\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-icon_pen wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\uff1a\u300c\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3068\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9\u30de\u30b9\u30af\u306e\u9055\u3044\u300d\u3084\u300c0\u30681\u306e\u610f\u5473\u300d\u3092\u554f\u3046\u554f\u984c\u304c\u591a\u304f\u51fa\u984c\u3055\u308c\u308b\u306e\u3067\u3001\u3057\u3063\u304b\u308a\u7406\u89e3\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">OSPF\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u78ba\u8a8d\u65b9\u6cd5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">OSPF\u306e\u8a2d\u5b9a\u3092\u884c\u3063\u305f\u3089\u3001\u304d\u3061\u3093\u3068\u52d5\u4f5c\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002Cisco IOS\u3067\u306f\u3001\u8907\u6570\u306e\u300cshow\u300d\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u30d7\u30ed\u30bb\u30b9\u5168\u4f53\u306e\u72b6\u6cc1\u304b\u3089\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3054\u3068\u306e\u8a73\u7d30\u307e\u3067\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u8a66\u9a13\u3067\u3082\u3088\u304f\u554f\u308f\u308c\u308b\u4ee3\u8868\u7684\u306a\u30b3\u30de\u30f3\u30c9\u3092\u6574\u7406\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">show ip protocols \u3067\u78ba\u8a8d\u3067\u304d\u308b\u5185\u5bb9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u30b3\u30de\u30f3\u30c9\u306f\u3001\u30eb\u30fc\u30bf\u3067\u73fe\u5728\u52d5\u4f5c\u3057\u3066\u3044\u308b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u6982\u8981\u3092\u8868\u793a\u3057\u307e\u3059\u3002OSPF\u3060\u3051\u3067\u306a\u304f\u3001RIP\u3084EIGRP\u306a\u3069\u3082\u542b\u3081\u3066\u4e00\u89a7\u3067\u304d\u308b\u306e\u304c\u7279\u5fb4\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u51fa\u529b\u4f8b\u304b\u3089\u78ba\u8a8d\u3067\u304d\u308b\u4ee3\u8868\u7684\u306a\u30dd\u30a4\u30f3\u30c8\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2460\u3000\u8d77\u52d5\u3057\u3066\u3044\u308b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30c8\u30b3\u30eb\u304c OSPF \u306e\u30d7\u30ed\u30bb\u30b91\u3067\u3042\u308b\u3053\u3068\u304c\u5206\u304b\u308b<br>\u2461\u3000\u3053\u306e\u30eb\u30fc\u30bf\u306e\u30eb\u30fc\u30bfID\uff08\u4f8b\uff1a1.1.1.1\uff09\u304c\u8868\u793a\u3055\u308c\u308b<br>\u2462\u3000\u6240\u5c5e\u3057\u3066\u3044\u308b\u30a8\u30ea\u30a2\u306e\u60c5\u5831\u3002\u6a19\u6e96\u30a8\u30ea\u30a2\u306b\u5c5e\u3057\u3066\u304a\u308a\u3001\u30b9\u30bf\u30d6\u3084NSSA\u306b\u306f\u542b\u307e\u308c\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3067\u304d\u308b<br>\u2463\u3000\u540c\u4e00\u30b3\u30b9\u30c8\u306e\u7d4c\u8def\u3092\u4fdd\u6301\u3067\u304d\u308b\u6570\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\u306f4\uff09\u3002\u3053\u308c\u304c\u300c\u7b49\u30b3\u30b9\u30c8\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u300d\u306e\u4e0a\u9650\u6570<br>\u2464\u3000OSPF\u8a2d\u5b9a\u3067\u5165\u529b\u3057\u305f network \u30b3\u30de\u30f3\u30c9\u306e\u5185\u5bb9\u3092\u8868\u793a<br>\u2465\u3000OSPF\u306e\u30b3\u30b9\u30c8\u8a08\u7b97\u5f0f\u3067\u4f7f\u308f\u308c\u308b\u5206\u5b50\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\u306f100Mbps\uff09<br>\u2466\u3000\u30a8\u30ea\u30a2\u5185\u3067LSA\u3092\u4ea4\u63db\u3057\u3066\u3044\u308b\u30eb\u30fc\u30bf\u306e\u4e00\u89a7\u3002IOS\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u3088\u3063\u3066\u306f\u81ea\u5206\u81ea\u8eab\u3082\u8868\u793a\u3055\u308c\u308b<br>\u2467\u3000OSPF\u306e\u30a2\u30c9\u30df\u30cb\u30b9\u30c8\u30ec\u30fc\u30c6\u30a3\u30d6\u30c7\u30a3\u30b9\u30bf\u30f3\u30b9\uff08AD\u5024\u3001\u30c7\u30d5\u30a9\u30eb\u30c8110\uff09<\/p>\n\n\n\n<p class=\"is-style-icon_pen wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\uff1a\u300cOSPF\u306eAD\u5024\u306f110\u300d\u3068\u6697\u8a18\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u5fc5\u9808\u3067\u3059\u3002\u3053\u3053\u306f\u843d\u3068\u3057\u7a74\u306b\u306a\u308a\u3084\u3059\u3044\u306e\u3067\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">show ip ospf \u3067\u78ba\u8a8d\u3067\u304d\u308b\u5185\u5bb9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u30b3\u30de\u30f3\u30c9\u306f\u3001OSPF\u30d7\u30ed\u30bb\u30b9\u5168\u4f53\u306b\u95a2\u3059\u308b\u60c5\u5831\u3092\u307e\u3068\u3081\u3066\u8868\u793a\u3057\u307e\u3059\u3002\u30d7\u30ed\u30bb\u30b9ID\u3084\u30eb\u30fc\u30bfID\u3001\u30a8\u30ea\u30a2\u60c5\u5831\u306a\u3069\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u5168\u822c\u306e\u52d5\u4f5c\u72b6\u614b\u3092\u628a\u63e1\u3059\u308b\u306e\u306b\u4fbf\u5229\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3b\u306a\u78ba\u8a8d\u30dd\u30a4\u30f3\u30c8\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2460\u3000\u52d5\u4f5c\u3057\u3066\u3044\u308b OSPF \u30d7\u30ed\u30bb\u30b9ID\u304c\u8868\u793a\u3055\u308c\u308b<br>\u2461\u3000\u6240\u5c5e\u3057\u3066\u3044\u308b\u30a8\u30ea\u30a2\u60c5\u5831\u304c\u8868\u793a\u3055\u308c\u308b\uff08\u6a19\u6e96\u30a8\u30ea\u30a2\u304b\u3001\u30b9\u30bf\u30d6\/NSSA\u304b\u3082\u5206\u304b\u308b\uff09<br>\u2462\u3000\u30a8\u30ea\u30a20\u306b\u95a2\u3059\u308b\u60c5\u5831\u306e\u898b\u51fa\u3057<br>\u2463\u3000\u30a8\u30ea\u30a20\u306b\u5c5e\u3059\u308b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u6570<br>\u2464\u3000\u30a8\u30ea\u30a2\u8a8d\u8a3c\u306e\u6709\u7121\uff08no authentication\uff1d\u8a8d\u8a3c\u306a\u3057\uff09<br>\u2465\u3000SPF\uff08\u6700\u77ed\u7d4c\u8def\u63a2\u7d22\uff09\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u5b9f\u884c\u56de\u6570<\/p>\n\n\n\n<p class=\"is-style-icon_pen wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\uff1a\u300cSPF\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u5b9f\u884c\u56de\u6570\u300d\u3084\u300c\u8a8d\u8a3c\u306e\u6709\u7121\u300d\u306a\u3069\u304c\u78ba\u8a8d\u9805\u76ee\u3068\u3057\u3066\u51fa\u984c\u3055\u308c\u3084\u3059\u3044\u305f\u3081\u3001\u3053\u306e\u30b3\u30de\u30f3\u30c9\u3067\u4f55\u304c\u5206\u304b\u308b\u306e\u304b\u3092\u6574\u7406\u3057\u3066\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">show ip ospf interface \u3067\u78ba\u8a8d\u3067\u304d\u308b\u5185\u5bb9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">OSPF\u3092\u52d5\u304b\u3057\u3066\u3044\u308b\u5404\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u52d5\u4f5c\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f\u3001\u3053\u306e\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3044\u307e\u3059\u3002\u3069\u306e\u30a8\u30ea\u30a2\u306b\u5c5e\u3057\u3066\u3044\u308b\u306e\u304b\u3001DR\/BDR\u306e\u9078\u51fa\u72b6\u6cc1\u3001Hello\/Dead\u30bf\u30a4\u30de\u30fc\u306a\u3069\u304c\u78ba\u8a8d\u3067\u304d\u308b\u305f\u3081\u3001\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306b\u3082\u6b20\u304b\u305b\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3b\u306a\u8868\u793a\u5185\u5bb9\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2460\u3000\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306eIP\u30a2\u30c9\u30ec\u30b9\u3068\u6240\u5c5e\u30a8\u30ea\u30a2<br>\u2461\u3000\u30d7\u30ed\u30bb\u30b9ID\u3001\u30eb\u30fc\u30bfID\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bf\u30a4\u30d7\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u30b3\u30b9\u30c8\u5024<br>\u3000\u3000\uff08\u4f8b\uff1aEthernet\u306f\u300cBROADCAST\u300d\u3001\u30b7\u30ea\u30a2\u30eb\u306e\u30dd\u30a4\u30f3\u30c8\u30c4\u30fc\u30dd\u30a4\u30f3\u30c8\u306f\u300cPOINT_TO_POINT\u300d\uff09<br>\u2462\u3000\u3053\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306eOSPF\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3\u5024\u3001\u304a\u3088\u3073\u81ea\u5206\u304cDR\/BDR\/DROTHER\u306e\u3069\u308c\u306b\u8a72\u5f53\u3059\u308b\u304b<br>\u2463\u3000\u3053\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\u3067\u9078\u51fa\u3055\u308c\u305fDR\u306e\u30eb\u30fc\u30bfID\u3068IP\u30a2\u30c9\u30ec\u30b9<br>\u2464\u3000\u3053\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\u3067\u9078\u51fa\u3055\u308c\u305fBDR\u306e\u30eb\u30fc\u30bfID\u3068IP\u30a2\u30c9\u30ec\u30b9<br>\u2465\u3000Hello\u30bf\u30a4\u30de\u30fc\u3001Dead\u30bf\u30a4\u30de\u30fc\u3001Wait\u30bf\u30a4\u30de\u30fc\u3001Retransmit\u30bf\u30a4\u30de\u30fc\u306e\u5024<br>\u2466\u3000\u30cd\u30a4\u30d0\u30fc\u95a2\u4fc2\u3092\u6301\u3064\u30eb\u30fc\u30bf\u306e\u6570\u3068\u3001\u30a2\u30b8\u30e3\u30bb\u30f3\u30b7\u30fc\u304c\u78ba\u7acb\u3057\u3066\u3044\u308b\u30eb\u30fc\u30bf\u306e\u6570<br>\u2467\u3000\u78ba\u7acb\u3057\u305f\u30a2\u30b8\u30e3\u30bb\u30f3\u30b7\u30fc\u306e\u8a73\u7d30\uff08\u76f8\u624b\u30eb\u30fc\u30bfID\u3084\u3001\u76f8\u624b\u304cDR\u3067\u3042\u308b\u3053\u3068\u306a\u3069\uff09<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7279\u306b\u300cHello\/Dead\u30bf\u30a4\u30de\u30fc\u300d\u300cDR\/BDR\u306e\u9078\u51fa\u72b6\u6cc1\u300d\u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bf\u30a4\u30d7\u300d\u306f\u8a66\u9a13\u3067\u3082\u7e70\u308a\u8fd4\u3057\u51fa\u984c\u3055\u308c\u308b\u91cd\u8981\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002\u3053\u3053\u3092\u898b\u3066OSPF\u304c\u6b63\u5e38\u306b\u52d5\u3044\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">OSPF\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u78ba\u8a8d\u30b3\u30de\u30f3\u30c9<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">OSPF\u306e\u52d5\u4f5c\u304c\u6b63\u3057\u304f\u884c\u308f\u308c\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u306f\u3001\u300cshow\u300d\u30b3\u30de\u30f3\u30c9\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u30cd\u30a4\u30d0\u30fc\u95a2\u4fc2\u3084LSDB\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u306e\u78ba\u8a8d\u65b9\u6cd5\u3092\u6574\u7406\u3057\u3066\u3044\u304d\u307e\u3059\u3002\u8a66\u9a13\u3067\u3082\u51fa\u984c\u983b\u5ea6\u304c\u9ad8\u3044\u90e8\u5206\u306a\u306e\u3067\u3001\u30b3\u30de\u30f3\u30c9\u306e\u5f79\u5272\u3068\u51fa\u529b\u5185\u5bb9\u3092\u3057\u3063\u304b\u308a\u62bc\u3055\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">show ip ospf neighbor<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u30b3\u30de\u30f3\u30c9\u306f\u3001\u30eb\u30fc\u30bf\u304c\u8a8d\u8b58\u3057\u3066\u3044\u308bOSPF\u30cd\u30a4\u30d0\u30fc\u306e\u4e00\u89a7\u3092\u8868\u793a\u3057\u307e\u3059\u3002\u96a3\u63a5\u95a2\u4fc2\uff08\u30cd\u30a4\u30d0\u30fc\u30b7\u30c3\u30d7\uff09\u306e\u72b6\u614b\u3084\u3001DR\/BDR\u306e\u9078\u51fa\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b\u4f7f\u308f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8868\u793a\u5185\u5bb9\u306e\u30dd\u30a4\u30f3\u30c8\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2460\u3000\u30cd\u30a4\u30d0\u30fc\u30eb\u30fc\u30bf\u306e\u30eb\u30fc\u30bfID<br>\u2461\u3000\u30cd\u30a4\u30d0\u30fc\u30eb\u30fc\u30bf\u306eOSPF\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3\u5024<br>\u2462\u3000\u30cd\u30a4\u30d0\u30fc\u72b6\u614b\uff08FULL\u306a\u3089LSDB\u3092\u4ea4\u63db\u6e08\u307f\u3001DROTHER\u540c\u58eb\u306a\u30892Way\u3067\u6b62\u307e\u308b\uff09<br>\u3000\u3000\u540c\u6642\u306b\u3001\u30cd\u30a4\u30d0\u30fc\u30eb\u30fc\u30bf\u304cDR\u30fbBDR\u30fbDROTHER\u306e\u3069\u308c\u3067\u3042\u308b\u304b\u3082\u8868\u793a\u3055\u308c\u308b<br>\u2463\u3000Dead\u30bf\u30a4\u30de\u30fc\uff08Hello\u30d1\u30b1\u30c3\u30c8\u304c\u9014\u7d76\u3048\u308b\u3068\u3053\u306e\u6642\u9593\u3067\u30cd\u30a4\u30d0\u30fcDown\u3068\u5224\u5b9a\u3002LAN\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u306f40\u79d2\uff09<br>\u2464\u3000\u30cd\u30a4\u30d0\u30fc\u30eb\u30fc\u30bf\u306eIP\u30a2\u30c9\u30ec\u30b9<br>\u2465\u3000\u81ea\u5206\u5074\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\uff08\u4f8b\uff1aFastEthernet1\uff09<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a66\u9a13\u3067\u306f\u300c\u30cd\u30a4\u30d0\u30fc\u72b6\u614b\uff08Full\u30012Way\u306a\u3069\uff09\u300d\u300cDR\/BDR\u306e\u5f79\u5272\u300d\u304c\u554f\u308f\u308c\u3084\u3059\u3044\u305f\u3081\u3001\u51fa\u529b\u306e\u610f\u5473\u3092\u7406\u89e3\u3057\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305f\u3001\u7279\u5b9a\u306e\u30cd\u30a4\u30d0\u30fc\u306e\u8a73\u7d30\u3092\u77e5\u308a\u305f\u3044\u5834\u5408\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u30eb\u30fc\u30bfID\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>show ip ospf neighbor 2.2.2.2<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u5834\u5408\u3001\u6b21\u306e\u3088\u3046\u306a\u60c5\u5831\u304c\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2460\u3000\u30cd\u30a4\u30d0\u30fc\u306e\u30eb\u30fc\u30bfID\u3068IP\u30a2\u30c9\u30ec\u30b9<br>\u2461\u3000\u30cd\u30a4\u30d0\u30fc\u3092\u8a8d\u8b58\u3057\u3066\u3044\u308b\u81ea\u5206\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3068\u30a8\u30ea\u30a2\u60c5\u5831<br>\u2462\u3000\u30cd\u30a4\u30d0\u30fc\u306e\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3\u5024\u3068\u72b6\u614b\uff08\u4f8b\uff1aFULL\/DROTHER\u306a\u3069\uff09<br>\u2463\u3000\u305d\u306e\u30bb\u30b0\u30e1\u30f3\u30c8\u306eDR\u3068BDR\u306eIP\u30a2\u30c9\u30ec\u30b9\uff08\u30dd\u30a4\u30f3\u30c8\u30c4\u30fc\u30dd\u30a4\u30f3\u30c8\u3067\u306f0.0.0.0\u3068\u8868\u793a\uff09<br>\u2464\u3000Dead\u30bf\u30a4\u30de\u30fc\u306e\u6b8b\u308a\u6642\u9593<br>\u2465\u3000\u30cd\u30a4\u30d0\u30fc\u78ba\u7acb\u304b\u3089\u306e\u7d4c\u904e\u6642\u9593<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">show ip ospf database<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30ea\u30f3\u30af\u30b9\u30c6\u30fc\u30c8\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\uff08LSDB\uff09\u306e\u8981\u7d04\u60c5\u5831\u3092\u78ba\u8a8d\u3059\u308b\u30b3\u30de\u30f3\u30c9\u3067\u3059\u3002OSPF\u306fLSA\u3092\u4f7f\u3063\u3066\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u60c5\u5831\u3092\u5171\u6709\u3057\u307e\u3059\u304c\u3001\u305d\u306e\u96c6\u307e\u308a\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8868\u793a\u5185\u5bb9\u306e\u4e3b\u306a\u9805\u76ee\u306f\u4ee5\u4e0b\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2460\u3000\u81ea\u5206\u306e\u30eb\u30fc\u30bfID\u3068\u30d7\u30ed\u30bb\u30b9\u756a\u53f7<br>\u2461\u3000LSA\u30bf\u30a4\u30d71\uff08\u30eb\u30fc\u30bfLSA\uff09\u306e\u898b\u51fa\u3057<br>\u2462\u3000\u30eb\u30fc\u30bfLSA\u3092\u751f\u6210\u3057\u305f\u30eb\u30fc\u30bf\u306e\u30eb\u30fc\u30bfID<br>\u2463\u3000\u30eb\u30fc\u30bfLSA\u3092\u901a\u77e5\u3057\u305f\u30eb\u30fc\u30bf\u306e\u30eb\u30fc\u30bfID<br>\u2464\u3000LSA\u3092\u53d7\u4fe1\u3057\u3066\u304b\u3089\u306e\u7d4c\u904e\u6642\u9593<br>\u2465\u3000\u30b7\u30fc\u30b1\u30f3\u30b9\u756a\u53f7\uff08\u66f4\u65b0\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u756a\u53f7\u306e\u3088\u3046\u306a\u3082\u306e\uff09<br>\u2466\u3000\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\uff08\u30a8\u30e9\u30fc\u30c1\u30a7\u30c3\u30af\u7528\uff09<br>\u2467\u3000\u30ea\u30f3\u30af\u6570<br>\u2468\u3000LSA\u30bf\u30a4\u30d72\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30afLSA\uff09\u306e\u898b\u51fa\u3057<br>\u2469\u3000\u30cd\u30c3\u30c8\u30ef\u30fc\u30afLSA\u3092\u751f\u6210\u3057\u305fDR\u306eIP\u30a2\u30c9\u30ec\u30b9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3088\u308a\u8a73\u7d30\u3092\u898b\u305f\u3044\u5834\u5408\u306f\u3001LSA\u30bf\u30a4\u30d7\u3054\u3068\u306b\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30eb\u30fc\u30bfLSA\u306e\u8a73\u7d30 \u2192 <code>show ip ospf database router<\/code><\/li>\n\n\n\n<li>\u30cd\u30c3\u30c8\u30ef\u30fc\u30afLSA\u306e\u8a73\u7d30 \u2192 <code>show ip ospf database network<\/code><\/li>\n<\/ul>\n\n\n\n<p class=\"is-style-icon_pen wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\uff1a\u300cOSPF\u3067\u4f7f\u308f\u308c\u308bLSA\u306e\u7a2e\u985e\u300d\u3084\u300cLSDB\u306e\u4e2d\u8eab\u300d\u304c\u554f\u308f\u308c\u3084\u3059\u3044\u305f\u3081\u3001\u3053\u306e\u30b3\u30de\u30f3\u30c9\u306e\u51fa\u529b\u306f\u7406\u89e3\u3057\u3066\u304a\u304f\u3079\u304d\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">show ip route<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u3092\u78ba\u8a8d\u3059\u308b\u30b3\u30de\u30f3\u30c9\u3067\u3059\u3002OSPF\u304c\u5b9f\u969b\u306b\u5b66\u7fd2\u3057\u305f\u7d4c\u8def\u304c\u3053\u3053\u306b\u53cd\u6620\u3055\u308c\u307e\u3059\u3002\u51fa\u529b\u3067\u306f\u3001\u5404\u30a8\u30f3\u30c8\u30ea\u306e\u5148\u982d\u306b\u300cO\u300d\u3068\u8868\u793a\u3055\u308c\u308b\u3053\u3068\u3067\u3001OSPF\u7531\u6765\u306e\u30eb\u30fc\u30c8\u3060\u3068\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8868\u793a\u5185\u5bb9\u306e\u78ba\u8a8d\u30dd\u30a4\u30f3\u30c8\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2460\u3000\u60c5\u5831\u6e90\uff08OSPF\u306e\u5834\u5408\u306f\u300cO\u300d\uff09<br>\u2461\u3000\u5b9b\u5148\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9<br>\u2462\u3000\u30a2\u30c9\u30df\u30cb\u30b9\u30c8\u30ec\u30fc\u30c6\u30a3\u30d6\u30c7\u30a3\u30b9\u30bf\u30f3\u30b9\uff08OSPF\u306f110\uff09<br>\u2463\u3000\u30e1\u30c8\u30ea\u30c3\u30af\u5024\uff08OSPF\u3067\u306f\u300c\u30b3\u30b9\u30c8\u5024\u300d\uff09<br>\u2464\u3000\u30cd\u30af\u30b9\u30c8\u30db\u30c3\u30d7\u30a2\u30c9\u30ec\u30b9<br>\u2465\u3000\u305d\u306e\u30eb\u30fc\u30c8\u3092\u53d7\u4fe1\u3057\u3066\u304b\u3089\u306e\u7d4c\u904e\u6642\u9593<br>\u2466\u3000\u30d1\u30b1\u30c3\u30c8\u3092\u8ee2\u9001\u3059\u308b\u305f\u3081\u306e\u51fa\u529b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u3048\u3070\u300c192.168.2.0\/24 \u306e\u7d4c\u8def\u3092 OSPF \u3067\u5b66\u7fd2\u3057\u3001\u30b3\u30b9\u30c8\u304c 2\u3001\u30cd\u30af\u30b9\u30c8\u30db\u30c3\u30d7\u304c 10.0.0.2\u300d\u3068\u3044\u3063\u305f\u60c5\u5831\u3092\u3053\u3053\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-icon_pen wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\uff1a\u300c\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u4e0a\u3067OSPF\u306e\u7d4c\u8def\u306f\u3069\u3046\u8868\u793a\u3055\u308c\u308b\u304b\u300d\u3084\u300cAD\u5024\u304c110\u3067\u3042\u308b\u3053\u3068\u300d\u304c\u5b9a\u756a\u306e\u51fa\u984c\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">OSPF\u306e\u30c7\u30d0\u30c3\u30b0\u78ba\u8a8d\u65b9\u6cd5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">OSPF\u306e\u52d5\u4f5c\u3092\u6df1\u304f\u78ba\u8a8d\u3057\u305f\u3044\u3068\u304d\u306b\u306f <strong><span class=\"swl-marker mark_yellow\">debug\u30b3\u30de\u30f3\u30c9<\/span><\/strong> \u3092\u5229\u7528\u3057\u307e\u3059\u3002\u901a\u5e38\u306e<code>show<\/code>\u30b3\u30de\u30f3\u30c9\u3067\u306f\u72b6\u614b\u3084\u7d50\u679c\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u3059\u304c\u3001\u901a\u4fe1\u305d\u306e\u3082\u306e\u306e\u6d41\u308c\u3092\u8ffd\u3046\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002debug\u306f\u305d\u306e\u8a73\u7d30\u3092\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u8868\u793a\u3067\u304d\u308b\u5f37\u529b\u306a\u624b\u6bb5\u3067\u3059\u3002\u305f\u3060\u3057\u3001CPU\u306b\u5927\u304d\u306a\u8ca0\u8377\u3092\u4e0e\u3048\u308b\u305f\u3081\u3001\u8a66\u9a13\u74b0\u5883\u3084\u691c\u8a3c\u74b0\u5883\u4ee5\u5916\u3067\u306f\u4f7f\u7528\u3057\u306a\u3044\u306e\u304c\u539f\u5247\u3067\u3059\u3002\u5229\u7528\u3057\u305f\u3089\u5fc5\u305a <code>undebug all<\/code> \u3067\u505c\u6b62\u3059\u308b\u3053\u3068\u3092\u5fd8\u308c\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">debug ip ospf events<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u30b3\u30de\u30f3\u30c9\u306f\u3001OSPF\u30eb\u30fc\u30bf\u304c\u9001\u4fe1\u30fb\u53d7\u4fe1\u3057\u3066\u3044\u308bOSPF\u30d1\u30b1\u30c3\u30c8\u306e\u6982\u8981\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u30cd\u30a4\u30d0\u30fc\u304c\u78ba\u7acb\u3057\u306a\u3044\u3068\u304d\u306b\u300c\u305d\u3082\u305d\u3082\u30d1\u30b1\u30c3\u30c8\u304c\u5c4a\u3044\u3066\u3044\u308b\u306e\u304b\u300d\u3092\u78ba\u8a8d\u3059\u308b\u306e\u306b\u6709\u52b9\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8868\u793a\u3055\u308c\u308b\u4f8b\u3068\u3057\u3066\u306f\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2460\u3000\u81ea\u30eb\u30fc\u30bf\u306eFastEthernet 1\u304b\u3089\u3001\u30a8\u30ea\u30a20\u306e192.168.1.1\u3068\u3057\u3066Hello\u30d1\u30b1\u30c3\u30c8\u3092224.0.0.5\u3078\u9001\u4fe1\u3057\u3066\u3044\u308b<br>\u2461\u3000\u30eb\u30fc\u30bfID 2.2.2.2 \u304b\u3089Hello\u30d1\u30b1\u30c3\u30c8\u3092\u53d7\u4fe1\u3057\u3066\u3044\u308b<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3064\u307e\u308a\u3001\u9001\u53d7\u4fe1\u306e\u6709\u7121\u3092\u5927\u307e\u304b\u306b\u78ba\u8a8d\u3059\u308b\u7528\u9014\u306b\u5411\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">debug ip ospf packet<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3061\u3089\u306fOSPF\u30d1\u30b1\u30c3\u30c8\u306e\u53d7\u4fe1\u8a73\u7d30\u3092\u8868\u793a\u3059\u308b\u30b3\u30de\u30f3\u30c9\u3067\u3059\u3002\u30a4\u30d9\u30f3\u30c8\u3088\u308a\u3082\u3055\u3089\u306b\u7d30\u304b\u3044\u5185\u5bb9\u3092\u89e3\u6790\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u610f\u5473\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>v<\/strong>\uff1aOSPF\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\uff08IPv4\u306f2\u3001IPv6\u306f3\uff09<\/li>\n\n\n\n<li><strong>t<\/strong>\uff1a\u30d1\u30b1\u30c3\u30c8\u30bf\u30a4\u30d7\uff081=Hello\u30012=DBD\u30013=LSR\u30014=LSU\u30015=LSAck\uff09<\/li>\n\n\n\n<li><strong>l<\/strong>\uff1a\u30d1\u30b1\u30c3\u30c8\u306e\u9577\u3055\uff08\u30d0\u30a4\u30c8\u6570\uff09<\/li>\n\n\n\n<li><strong>rid<\/strong>\uff1a\u9001\u4fe1\u5143\u30eb\u30fc\u30bf\u306e\u30eb\u30fc\u30bfID<\/li>\n\n\n\n<li><strong>aid<\/strong>\uff1a\u30a8\u30ea\u30a2ID\uff080.0.0.0 \u306f\u30a8\u30ea\u30a20\u3092\u610f\u5473\u3059\u308b\uff09<\/li>\n\n\n\n<li><strong>chk<\/strong>\uff1a\u30c1\u30a7\u30c3\u30af\u30b5\u30e0<\/li>\n\n\n\n<li><strong>aut<\/strong>\uff1a\u8a8d\u8a3c\u30bf\u30a4\u30d7\uff080=\u306a\u3057\u30011=\u30af\u30ea\u30a2\u30c6\u30ad\u30b9\u30c8\u30012=MD5\uff09<\/li>\n\n\n\n<li><strong>auk<\/strong>\uff1a\u8a8d\u8a3c\u30ad\u30fc<\/li>\n\n\n\n<li><strong>keyed<\/strong>\uff1aMD5\u8a8d\u8a3c\u6642\u306e\u30ad\u30fcID<\/li>\n<\/ul>\n\n\n\n<p class=\"is-style-icon_pen wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\uff1a\u300cOSPF\u30d1\u30b1\u30c3\u30c8\u30bf\u30a4\u30d7\u306e\u756a\u53f7\u3068\u540d\u524d\u300d\u3092\u554f\u3046\u554f\u984c\u304c\u3088\u304f\u51fa\u308b\u305f\u3081\u3001Hello=1\u3001DBD=2\u3001LSR=3\u3001LSU=4\u3001LSAck=5 \u3092\u5fc5\u305a\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">debug ip ospf adj<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u30b3\u30de\u30f3\u30c9\u306f\u3001\u30cd\u30a4\u30d0\u30fc\u95a2\u4fc2\u306e\u78ba\u7acb\u30d7\u30ed\u30bb\u30b9\u3092\u8a73\u7d30\u306b\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u30ea\u30f3\u30af\u30a2\u30c3\u30d7\u3055\u305b\u305f\u3068\u304d\u3001OSPF\u30eb\u30fc\u30bf\u540c\u58eb\u304c\u3069\u306e\u3088\u3046\u306b\u95a2\u4fc2\u3092\u7bc9\u3044\u3066\u3044\u304f\u306e\u304b\u3092\u8ffd\u8de1\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5178\u578b\u7684\u306a\u51fa\u529b\u306e\u6d41\u308c\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2460\u3000Hello\u30d1\u30b1\u30c3\u30c8\u306e\u9001\u53d7\u4fe1\u30672Way State\u3078<br>\u2461\u3000DR\u3068BDR\u304c\u9078\u51fa\u3055\u308c\u308b<br>\u2462\u3000Exstart State\u3078\u79fb\u884c<br>\u2463\u3000\u30de\u30b9\u30bf\u30fc\u30fb\u30b9\u30ec\u30fc\u30d6\u306e\u95a2\u4fc2\u3092\u6c7a\u5b9a<br>\u2464\u3000Exchange State\u3067DBD\u3001LSR\u3001LSU\u3092\u3084\u308a\u53d6\u308a\u3057LSDB\u3092\u540c\u671f<br>\u2465\u3000\u540c\u671f\u304c\u5b8c\u4e86\u3057Full State\u3078\u5230\u9054<\/p>\n\n\n\n<p class=\"is-style-icon_pen wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\uff1a\u300cOSPF\u30cd\u30a4\u30d0\u30fc\u95a2\u4fc2\u306e\u72b6\u614b\u9077\u79fb\uff08Down \u2192 Init \u2192 2Way \u2192 Exstart \u2192 Exchange \u2192 Loading \u2192 Full\uff09\u300d\u304c\u5b9a\u756a\u306e\u6697\u8a18\u30dd\u30a4\u30f3\u30c8\u306a\u306e\u3067\u3001\u30c7\u30d0\u30c3\u30b0\u51fa\u529b\u3068\u4f75\u305b\u3066\u7406\u89e3\u3057\u3066\u304a\u304f\u3068\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3088\u304f\u3042\u308bOSPF\u30c7\u30d0\u30c3\u30b0\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">OSPF\u30cd\u30a4\u30d0\u30fc\u304c\u78ba\u7acb\u3057\u306a\u3044\u3068\u304d\u306b\u8868\u793a\u3055\u308c\u308b\u5178\u578b\u7684\u306a\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3068\u539f\u56e0\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2460\u3000<code>OSPF: Mismatched hello parameters<\/code><br>\u3000Hello\u30bf\u30a4\u30de\u30fc\u306e\u5024\u304c\u4e00\u81f4\u3057\u3066\u3044\u306a\u3044<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2461\u3000<code>OSPF-4-ERRRCV: mismatch area ID<\/code><br>\u3000\u30a8\u30ea\u30a2ID\u304c\u4e00\u81f4\u3057\u3066\u3044\u306a\u3044<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2462\u3000<code>OSPF: Mismatch Authentication type<\/code><br>\u3000\u8a8d\u8a3c\u30bf\u30a4\u30d7\uff08none \/ clear \/ MD5\uff09\u304c\u4e00\u81f4\u3057\u3066\u3044\u306a\u3044<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u2463\u3000<code>OSPF: Mismatch Authentication Key<\/code><br>\u3000\u8a8d\u8a3c\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u4e00\u81f4\u3057\u3066\u3044\u306a\u3044<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306f\u8a66\u9a13\u554f\u984c\u3067\u3082\u305d\u306e\u307e\u307e\u51fa\u984c\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u304f\u3001\u7279\u306b <span class=\"swl-marker mark_yellow\"><strong>\u30a8\u30ea\u30a2ID\u306e\u4e0d\u4e00\u81f4<\/strong> \u3068 <strong>Hello\u30bf\u30a4\u30de\u30fc\u306e\u4e0d\u4e00\u81f4<\/strong><\/span> \u306f\u983b\u51fa\u3067\u3059\u3002\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u969b\u306e\u30c1\u30a7\u30c3\u30af\u30dd\u30a4\u30f3\u30c8\u3068\u3057\u3066\u5fc5\u305a\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">OSPF\u306e\u30eb\u30fc\u30bfID\u8a2d\u5b9a<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">OSPF\u3067\u306f\u3001\u5404\u30eb\u30fc\u30bf\u3092\u8b58\u5225\u3059\u308b\u305f\u3081\u306b\u300c\u30eb\u30fc\u30bfID\u300d\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u30eb\u30fc\u30bfID\u306f32\u30d3\u30c3\u30c8\u5024\u3067\u3001\u901a\u5e38\u306fIP\u30a2\u30c9\u30ec\u30b9\u306e\u3088\u3046\u306b4\u3064\u306e\u30aa\u30af\u30c6\u30c3\u30c8\u3067\u8868\u8a18\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u624b\u52d5\u3067\u6307\u5b9a\u3059\u308b\u5834\u5408\u306f\u6b21\u306e\u30b3\u30de\u30f3\u30c9\u3092\u5229\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(config-router)# router-id 1.1.1.1<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u305f\u3060\u3057\u3001\u3053\u306e\u8a2d\u5b9a\u3092\u7701\u7565\u3057\u3066\u3082\u81ea\u52d5\u7684\u306b\u4ee5\u4e0b\u306e\u512a\u5148\u9806\u4f4d\u3067\u30eb\u30fc\u30bfID\u304c\u6c7a\u307e\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>router-id \u30b3\u30de\u30f3\u30c9\u3067\u660e\u793a\u7684\u306b\u6307\u5b9a\u3055\u308c\u305f\u5024<\/li>\n\n\n\n<li>\u30eb\u30fc\u30d7\u30d0\u30c3\u30af\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306eIP\u30a2\u30c9\u30ec\u30b9\uff08\u6700\u3082\u5927\u304d\u3044\u3082\u306e\u304c\u9078\u3070\u308c\u308b\uff09<\/li>\n\n\n\n<li>\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u7269\u7406\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u4e2d\u3067\u6700\u3082\u5927\u304d\u3044IP\u30a2\u30c9\u30ec\u30b9<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u306e\u305f\u3081\u3001router-id \u30b3\u30de\u30f3\u30c9\u306f\u5fc5\u9808\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u8a2d\u8a08\u306e\u660e\u78ba\u5316\u3084\u30c8\u30e9\u30d6\u30eb\u6642\u306e\u7279\u5b9a\u3092\u5bb9\u6613\u306b\u3059\u308b\u305f\u3081\u306b\u624b\u52d5\u3067\u8a2d\u5b9a\u3059\u308b\u306e\u304c\u5b9f\u52d9\u7684\u306b\u306f\u671b\u307e\u3057\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6ce8\u610f\u70b9\u3068\u3057\u3066\u3001router-id \u3092\u5909\u66f4\u3057\u305f\u5834\u5408\u306fOSPF\u30d7\u30ed\u30bb\u30b9\u306e\u518d\u8d77\u52d5\u304c\u5fc5\u8981\u3067\u3059\u3002\u518d\u8d77\u52d5\u306f <code>clear ip ospf process<\/code> \u307e\u305f\u306f\u30eb\u30fc\u30bf\u306e\u518d\u8d77\u52d5\u306b\u3088\u3063\u3066\u884c\u3044\u307e\u3059\u304c\u3001\u305d\u306e\u969b\u306b\u901a\u4fe1\u304c\u5207\u65ad\u3055\u308c\u308b\u306e\u3067\u5b9f\u904b\u7528\u3067\u306f\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">OSPF\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3\u306e\u8a2d\u5b9a<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u578b\u3084\u30de\u30eb\u30c1\u30a2\u30af\u30bb\u30b9\u578b\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08\u4f8b\uff1aEthernet\uff09\u3067\u306f\u3001OSPF\u306fDR\uff08\u6307\u5b9a\u30eb\u30fc\u30bf\uff09\u3068BDR\uff08\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u6307\u5b9a\u30eb\u30fc\u30bf\uff09\u3092\u9078\u51fa\u3057\u307e\u3059\u3002\u9078\u51fa\u306f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u300c\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3\u5024\u300d\u306b\u57fa\u3065\u3044\u3066\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u306f\u300c1\u300d\u3067\u3001\u5024\u304c\u9ad8\u3044\u65b9\u304c\u512a\u5148\u3055\u308c\u307e\u3059\u30020\u306b\u8a2d\u5b9a\u3059\u308b\u3068\u3001\u305d\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306f\u5fc5\u305aDROTHER\u3068\u306a\u308a\u3001DR\u3084BDR\u306b\u306f\u9078\u3070\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(config-if)# ip ospf priority 255<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u4f8b\u3067\u306f\u3001GigabitEthernet 0\/1 \u306e\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3\u5024\u3092255\u306b\u8a2d\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-icon_pen wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\uff1a\u300c\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3=0\u306b\u3059\u308b\u3068DR\/BDR\u306b\u9078\u51fa\u3055\u308c\u306a\u3044\u300d\u3068\u3044\u3046\u70b9\u304c\u3088\u304f\u554f\u308f\u308c\u307e\u3059\u3002<br>\u306a\u304a\u3001\u8a2d\u5b9a\u5909\u66f4\u3057\u3066\u3082\u3059\u3067\u306b\u6c7a\u307e\u3063\u305fDR\/BDR\u306f\u5909\u308f\u3089\u306a\u3044\u305f\u3081\u3001\u5373\u5ea7\u306b\u53cd\u6620\u3055\u305b\u305f\u3044\u3068\u304d\u306f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e <code>shutdown\/no shutdown<\/code> \u3082\u3057\u304f\u306f <code>clear ip ospf process<\/code> \u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">OSPF\u30b3\u30b9\u30c8\u5024\u306e\u8a2d\u5b9a<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">OSPF\u306e\u7d4c\u8def\u9078\u629e\u306f\u300c\u30b3\u30b9\u30c8\u5024\u300d\u3092\u57fa\u6e96\u306b\u884c\u308f\u308c\u307e\u3059\u3002\u30b3\u30b9\u30c8\u5024\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u30ea\u30f3\u30af\u306e\u5e2f\u57df\u5e45\u304b\u3089\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a08\u7b97\u5f0f\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u30b3\u30b9\u30c8\u5024 \uff1d \u53c2\u7167\u5e2f\u57df\u5e45 \u00f7 \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u5e2f\u57df\u5e45<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u53c2\u7167\u5e2f\u57df\u5e45\u306f\u300c100Mbps\u300d\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4ee3\u8868\u7684\u306a\u8a08\u7b97\u7d50\u679c\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u5e2f\u57df\u5e45<\/th><th>\u30b3\u30b9\u30c8\u5024<\/th><\/tr><\/thead><tbody><tr><td>64Kbps<\/td><td>1562<\/td><\/tr><tr><td>128Kbps<\/td><td>781<\/td><\/tr><tr><td>1.544Mbps (T1)<\/td><td>64<\/td><\/tr><tr><td>10Mbps<\/td><td>10<\/td><\/tr><tr><td>100Mbps<\/td><td>1<\/td><\/tr><tr><td>1Gbps<\/td><td>1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">1Gbps\u30ea\u30f3\u30af\u3067\u306f\u8a08\u7b97\u4e0a\u300c0.1\u300d\u306b\u306a\u308a\u307e\u3059\u304c\u3001\u6574\u6570\u5024\u3057\u304b\u6271\u3048\u306a\u3044\u305f\u3081\u5b9f\u969b\u306b\u306f\u300c1\u300d\u3068\u3057\u3066\u6271\u308f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30b3\u30b9\u30c8\u3092\u624b\u52d5\u3067\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>(config-if)# ip ospf cost 10<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u4f8b\u3067\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u30b3\u30b9\u30c810\u3092\u624b\u52d5\u3067\u5272\u308a\u5f53\u3066\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u53c2\u7167\u5e2f\u57df\u5e45\u3092\u5909\u66f4\u3059\u308b\u65b9\u6cd5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u3067\u30b3\u30b9\u30c8\u306e\u57fa\u6e96\u3092\u898b\u76f4\u3057\u305f\u3044\u3068\u304d\u306f\u3001\u53c2\u7167\u5e2f\u57df\u5e45\u3092\u5909\u66f4\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(config-router)# auto-cost reference-bandwidth 1000<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u8a2d\u5b9a\u306b\u3088\u308a\u3001\u53c2\u7167\u5e2f\u57df\u5e45\u304c1000Mbps\uff081Gbps\uff09\u3068\u306a\u308a\u300110Mbps\u306e\u30ea\u30f3\u30af\u306f\u30b3\u30b9\u30c8100\u3001100Mbps\u306f\u30b3\u30b9\u30c810\u30011Gbps\u306f\u30b3\u30b9\u30c81\u3068\u3057\u3066\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002<br>\u305f\u3060\u3057\u3001\u3053\u306e\u8a2d\u5b9a\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u3067\u63c3\u3048\u306a\u3044\u3068\u4e0d\u6574\u5408\u304c\u767a\u751f\u3059\u308b\u305f\u3081\u3001\u5927\u898f\u6a21\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306f\u63a8\u5968\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5e2f\u57df\u5e45\u8a2d\u5b9a\u306b\u3088\u308b\u8abf\u6574<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">OSPF\u30b3\u30b9\u30c8\u306f <code>show interfaces<\/code> \u3067\u8868\u793a\u3055\u308c\u308b\u300cBW Kbit\/sec\u300d\u306e\u5024\u3092\u57fa\u6e96\u306b\u8a08\u7b97\u3055\u308c\u308b\u305f\u3081\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u5e2f\u57df\u3092 <code>bandwidth<\/code> \u30b3\u30de\u30f3\u30c9\u3067\u5909\u66f4\u3059\u308b\u3068\u30b3\u30b9\u30c8\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(config-if)# bandwidth 2048<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u5834\u5408\u3001\u5e2f\u57df\u30922048kbps\u3068\u3057\u3066\u6271\u3044\u3001\u305d\u3053\u304b\u3089\u30b3\u30b9\u30c8\u3092\u518d\u8a08\u7b97\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u3053\u306e\u65b9\u6cd5\u306f\u526f\u6b21\u7684\u306a\u8a2d\u5b9a\u5909\u66f4\u3068\u306a\u308b\u305f\u3081\u3001\u5b9f\u969b\u306e\u8a2d\u8a08\u3067\u306f\u3042\u307e\u308a\u4f7f\u308f\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"is-style-icon_pen wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\uff1a<br>\u30fb\u30eb\u30fc\u30bfID\u306e\u6c7a\u5b9a\u9806\u4f4d\uff08\u624b\u52d5\u8a2d\u5b9a \u2192 \u30eb\u30fc\u30d7\u30d0\u30c3\u30afIP \u2192 \u7269\u7406\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u6700\u5927IP\uff09\u306f\u5fc5\u305a\u6697\u8a18<br>\u30fbDR\/BDR\u306e\u9078\u51fa\u306f\u30d7\u30e9\u30a4\u30aa\u30ea\u30c6\u30a3\u5024\u304c\u6700\u512a\u5148\u3002\u5024\u304c0\u306a\u3089\u7d76\u5bfe\u306b\u9078\u3070\u308c\u306a\u3044<br>\u30fbOSPF\u306e\u30b3\u30b9\u30c8\u306f\u5e2f\u57df\u5e45\u304b\u3089\u8a08\u7b97\u3055\u308c\u3001\u6700\u7d42\u7684\u306b\u300c\u5024\u304c\u5c0f\u3055\u3044\u7d4c\u8def\u300d\u304c\u9078\u3070\u308c\u308b<br>\u30fbAD\u5024\uff08\u30a2\u30c9\u30df\u30cb\u30b9\u30c8\u30ec\u30fc\u30c6\u30a3\u30d6\u30c7\u30a3\u30b9\u30bf\u30f3\u30b9\uff09\u306f110\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d<br><br>\u3053\u3053\u307e\u3067\u3092\u62bc\u3055\u3048\u3066\u304a\u3051\u3070\u3001OSPF\u306e\u57fa\u672c\u7684\u306a\u7d4c\u8def\u9078\u629e\u306e\u4ed5\u7d44\u307f\u3092\u8a66\u9a13\u3067\u3082\u6b63\u3057\u304f\u7b54\u3048\u3089\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">OSPF\u306e\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">OSPF\u306f\u30ea\u30f3\u30af\u30b9\u30c6\u30fc\u30c8\u578b\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3001\u5b9b\u5148\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u307e\u3067\u306e\u7d4c\u8def\u3092\u300c\u30b3\u30b9\u30c8\u5024\u300d\u306b\u3088\u3063\u3066\u9078\u629e\u3057\u307e\u3059\u3002\u3082\u3057\u8907\u6570\u306e\u7d4c\u8def\u304c\u540c\u3058\u30b3\u30b9\u30c8\u3067\u5230\u9054\u3067\u304d\u308b\u5834\u5408\u3001\u305d\u308c\u3089\u3092\u540c\u6642\u306b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u306b\u683c\u7d0d\u3057\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u5206\u6563\u3057\u3066\u8ee2\u9001\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u3092 <strong><span class=\"swl-marker mark_yellow\">\u7b49\u30b3\u30b9\u30c8\u30de\u30eb\u30c1\u30d1\u30b9\uff08ECMP\uff1aEqual-Cost Multi-Path\uff09<\/span><\/strong> \u3068\u547c\u3073\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u3048\u3070\u3001\u5b9b\u5148 <code>172.16.4.0\/24<\/code> \u306b\u5bfe\u3057\u3066\u3001R2\u7d4c\u7531\u3068R3\u7d4c\u7531\u306e\u3069\u3061\u3089\u3082\u30b3\u30b9\u30c8\u5024\u304c\u300c2\u300d\u3067\u3042\u308b\u306a\u3089\u3070\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u306b\u306f2\u3064\u306e\u7d4c\u8def\u304c\u540c\u6642\u306b\u767b\u9332\u3055\u308c\u3001OSPF\u30eb\u30fc\u30bf\u306f\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u6319\u52d5<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">OSPF\u3067\u306f\u3001\u7b49\u30b3\u30b9\u30c8\u7d4c\u8def\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u6700\u59274\u3064\u306e\u7d4c\u8def\u3092\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u306b\u4fdd\u6301\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u8907\u6570\u306e\u30ea\u30f3\u30af\u3078\u5206\u6563\u3055\u308c\u3001\u56de\u7dda\u306e\u5229\u7528\u52b9\u7387\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305f\u3060\u3057\u3001\u3053\u306e\u300c\u6700\u5927\u6570\u300d\u306f\u8abf\u6574\u53ef\u80fd\u3067\u3001\u74b0\u5883\u306b\u3088\u3063\u3066\u5909\u66f4\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7b49\u30b3\u30b9\u30c8\u30d1\u30b9\u306e\u6700\u5927\u6570\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>(config-router)# maximum-paths value<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>value<\/strong>\uff1a1\uff5e16 \u306e\u7bc4\u56f2\u3067\u6307\u5b9a<\/li>\n\n\n\n<li>\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\uff1a4<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a2d\u5b9a\u4f8b\uff1a\u6700\u5927\u5024\u309210\u306b\u5909\u66f4\u3059\u308b\u5834\u5408<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(config)# router ospf 1\n(config-router)# maximum-paths 10<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u8a2d\u5b9a\u306b\u3088\u308a\u3001OSPF\u30eb\u30fc\u30bf\u306f\u6700\u5927\u306710\u672c\u307e\u3067\u306e\u7b49\u30b3\u30b9\u30c8\u7d4c\u8def\u3092\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u306b\u683c\u7d0d\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-icon_pen wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\uff1a<br>\u30fbOSPF\u306f <strong>\u7b49\u30b3\u30b9\u30c8\u7d4c\u8def\u306e\u307f<\/strong> \u3092\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u5bfe\u8c61\u306b\u3059\u308b\uff08\u30b3\u30b9\u30c8\u304c\u7570\u306a\u308b\u5834\u5408\u306f1\u672c\u3060\u3051\u9078\u629e\uff09<br>\u30fb\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u6700\u59274\u672c\u307e\u3067\u3060\u304c\u3001\u6700\u592716\u672c\u307e\u3067\u62e1\u5f35\u53ef\u80fd<br>\u30fb\u5b9f\u969b\u306e\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b7\u30f3\u30b0\u306f <strong>\u30d1\u30b1\u30c3\u30c8\u3054\u3068\u306e\u5206\u6563\u3067\u306f\u306a\u304f\u3001\u30d5\u30ed\u30fc\u5358\u4f4d\u3067\u5206\u6563\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u3044<\/strong>\uff08\u5b9f\u88c5\u4f9d\u5b58\uff09<br><br>\u3053\u3053\u306f\u8a66\u9a13\u3067\u3082\u300cOSPF\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u306f4\u7d4c\u8def\u300d\u300c\u6700\u592716\u7d4c\u8def\u307e\u3067\u53ef\u80fd\u300d\u3068\u3044\u3046\u5f62\u3067\u3088\u304f\u554f\u308f\u308c\u308b\u306e\u3067\u78ba\u5b9f\u306b\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">OSPF\u306e\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u9001\u4fe1\u5236\u5fa1<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">OSPF\u3067\u306f\u3001\u96a3\u63a5\u30eb\u30fc\u30bf\u304c\u3044\u308b\u304b\u3069\u3046\u304b\u306b\u95a2\u308f\u3089\u305a\u3001OSPF\u3092\u6709\u52b9\u5316\u3057\u305f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u304b\u3089\u306f\u5e38\u306bHello\u30d1\u30b1\u30c3\u30c8\u304c\u9001\u4fe1\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u96a3\u63a5\u95a2\u4fc2\u3092\u78ba\u7acb\u3059\u308b\u305f\u3081\u306e\u57fa\u672c\u52d5\u4f5c\u3067\u3059\u304c\u3001\u4f8b\u3048\u3070PC\u3057\u304b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u306a\u3044\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u5bfe\u3057\u3066\u306f\u7121\u99c4\u306aHello\u3092\u9001\u308a\u7d9a\u3051\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u3088\u3046\u306a\u5834\u5408\u306b\u4f7f\u7528\u3059\u308b\u306e\u304c <span class=\"swl-marker mark_yellow\"><strong>passive-interface\u30b3\u30de\u30f3\u30c9<\/strong> <\/span>\u3067\u3059\u3002\u3053\u308c\u3092\u8a2d\u5b9a\u3059\u308b\u3068\u3001\u6307\u5b9a\u3057\u305f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u304b\u3089\u306fOSPF\u306eHello\u30d1\u30b1\u30c3\u30c8\u3084\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u304c\u9001\u4fe1\u3055\u308c\u306a\u304f\u306a\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u305d\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u60c5\u5831\u81ea\u4f53\u306fOSPF\u306b\u5e83\u544a\u3055\u308c\u308b\u305f\u3081\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u306b\u306f\u6b63\u3057\u304f\u53cd\u6620\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8a2d\u5b9a\u4f8b\uff08\u7279\u5b9a\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3067\u9001\u4fe1\u3092\u6b62\u3081\u308b\u5834\u5408\uff09<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>(config)# router ospf 1\n(config-router)# passive-interface GigabitEthernet0\/0<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u8a2d\u5b9a\u3067\u306f\u3001GigabitEthernet0\/0 \u304b\u3089\u306fHello\u30d1\u30b1\u30c3\u30c8\u304c\u9001\u4fe1\u3055\u308c\u306a\u304f\u306a\u308a\u307e\u3059\u3002PC\u306a\u3069\u306e\u30a8\u30f3\u30c9\u30c7\u30d0\u30a4\u30b9\u304c\u63a5\u7d9a\u3055\u308c\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u9069\u7528\u3059\u308b\u306e\u304c\u5178\u578b\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">L3\u30b9\u30a4\u30c3\u30c1\u74b0\u5883\u3067\u306e\u904b\u7528<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">L3\u30b9\u30a4\u30c3\u30c1\u306e\u3088\u3046\u306b\u8907\u6570\u306eVLAN\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092OSPF\u306b\u53c2\u52a0\u3055\u305b\u308b\u5834\u5408\u3001\u96a3\u63a5\u30eb\u30fc\u30bf\u304c\u5b58\u5728\u3059\u308b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306f\u4e00\u90e8\u3060\u3051\u3067\u3001\u305d\u308c\u4ee5\u5916\u306f\u307b\u3068\u3093\u3069\u304c\u30a8\u30f3\u30c9\u30c7\u30d0\u30a4\u30b9\u7528\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u3044\u3046\u30b1\u30fc\u30b9\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u306e\u5834\u5408\u30011\u3064\u305a\u3064 <code>passive-interface<\/code> \u3092\u9069\u7528\u3057\u3066\u3044\u304f\u306e\u306f\u52b9\u7387\u304c\u60aa\u3044\u305f\u3081\u3001<strong><span class=\"swl-marker mark_yellow\">\u5168\u3066\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u4e00\u62ec\u3067\u30d1\u30c3\u30b7\u30d6\u5316\u3059\u308b <code>passive-interface default<\/code><\/span><\/strong> \u3092\u4f7f\u3046\u306e\u304c\u4e00\u822c\u7684\u3067\u3059\u3002\u305d\u306e\u4e0a\u3067\u3001OSPF\u30cd\u30a4\u30d0\u30fc\u95a2\u4fc2\u3092\u6301\u3064\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3060\u3051\u3092 <code>no passive-interface<\/code> \u3067\u9664\u5916\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8a2d\u5b9a\u4f8b\uff08VLAN10\u306e\u307f\u96a3\u63a5\u30eb\u30fc\u30bf\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\uff09<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>Catalyst(config)# router ospf 1\nCatalyst(config-router)# network 172.16.10.254 0.0.0.0 area 0\nCatalyst(config-router)# network 172.16.20.254 0.0.0.0 area 0\nCatalyst(config-router)# network 172.16.30.254 0.0.0.0 area 0\nCatalyst(config-router)# network 172.16.40.254 0.0.0.0 area 0\n\nCatalyst(config-router)# passive-interface default\nCatalyst(config-router)# no passive-interface vlan10<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u5834\u5408\u3001\u3059\u3079\u3066\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u304c\u30d1\u30c3\u30b7\u30d6\u5316\u3055\u308c\u3001<strong>VLAN10\u3060\u3051\u304cOSPF\u30cd\u30a4\u30d0\u30fc\u3092\u5f62\u6210\u3067\u304d\u308b\u3088\u3046\u306b\u8a2d\u5b9a<\/strong>\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-icon_pen wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\uff1a<br>\u30fbpassive-interface \u306f <strong>Hello\u306e\u9001\u4fe1\u3092\u6b62\u3081\u308b\u304c\u3001\u305d\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306fOSPF\u306b\u5e83\u544a\u3055\u308c\u308b<\/strong><br>\u30fb\u30c7\u30d5\u30a9\u30eb\u30c8\u306f\u3059\u3079\u3066\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u304b\u3089Hello\u3092\u9001\u4fe1\u3059\u308b<br>\u30fbL3\u30b9\u30a4\u30c3\u30c1\u306a\u3069\u3067\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u6570\u304c\u591a\u3044\u5834\u5408\u306f\u3001<code>passive-interface default<\/code> \u3092\u4f7f\u3046\u306e\u304c\u52b9\u7387\u7684<br>\u30fbOSPF\u306e\u30cd\u30a4\u30d0\u30fc\u95a2\u4fc2\u3092\u6301\u305f\u305b\u305f\u3044\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306f <code>no passive-interface<\/code> \u3067\u9664\u5916<br><br>\u3053\u306e\u90e8\u5206\u306f\u8a66\u9a13\u3067\u3082\u300cHello\u30d1\u30b1\u30c3\u30c8\u306e\u9001\u4fe1\u3092\u6b62\u3081\u308b\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u60c5\u5831\u306f\u5e83\u544a\u3055\u308c\u308b\u300d\u3068\u3044\u3046\u70b9\u304c\u3088\u304f\u554f\u308f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u25c6\u307e\u3068\u3081\u30b9\u30e9\u30a4\u30c9<\/h2>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/ccna-curriculum.tech-village.co.jp\/wp-content\/uploads\/2025\/04\/OSPF\uff08\u8a2d\u5b9a\u30fb\u64cd\u4f5c\uff09.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"OSPF\uff08\u8a2d\u5b9a\u30fb\u64cd\u4f5c\uff09\u306e\u57cb\u3081\u8fbc\u307f\u3002\"><\/object><a id=\"wp-block-file--media-56a576d0-0189-4210-acd2-9355d38a9e64\" href=\"https:\/\/ccna-curriculum.tech-village.co.jp\/wp-content\/uploads\/2025\/04\/OSPF\uff08\u8a2d\u5b9a\u30fb\u64cd\u4f5c\uff09.pdf\">OSPF\uff08\u8a2d\u5b9a\u30fb\u64cd\u4f5c\uff09<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>OSPF\u306e\u30d7\u30ed\u30bb\u30b9\u8d77\u52d5\u3068\u57fa\u672c\u8a2d\u5b9a OSPF\u3092\u30eb\u30fc\u30bf\u3067\u4f7f\u3048\u308b\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u307e\u305a\u30eb\u30fc\u30bf\u4e0a\u3067\u300cOSPF\u30d7\u30ed\u30bb\u30b9\u300d\u3092\u7acb\u3061\u4e0a\u3052\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002Cisco\u30eb\u30fc\u30bf\u3067\u306f\u30011\u53f0\u306e\u6a5f\u5668\u306e\u4e2d\u3067\u8907\u6570\u306eOSPF\u30d7\u30ed\u30bb\u30b9\u3092\u4e26\u884c\u3057\u3066\u52d5\u304b\u3059\u3053\u3068 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[13],"tags":[],"class_list":["post-233","post","type-post","status-publish","format-standard","hentry","category-ip-connect"],"_links":{"self":[{"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/posts\/233","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=233"}],"version-history":[{"count":2,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/posts\/233\/revisions"}],"predecessor-version":[{"id":690,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/posts\/233\/revisions\/690"}],"wp:attachment":[{"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=233"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=233"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=233"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}