{"id":1462,"date":"2025-10-29T01:48:03","date_gmt":"2025-10-28T16:48:03","guid":{"rendered":"https:\/\/mylifeisbeautiful555.net\/?page_id=1462"},"modified":"2025-10-29T01:48:03","modified_gmt":"2025-10-28T16:48:03","slug":"ospf%e3%81%ae%e8%a8%ad%e5%ae%9a","status":"publish","type":"page","link":"https:\/\/mylifeisbeautiful555.net\/?page_id=1462","title":{"rendered":"OSPF\u306e\u8a2d\u5b9a"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">1. OSPF\u30d7\u30ed\u30bb\u30b9\u306e\u6709\u52b9\u5316<\/h2>\n\n\n\n<p>OSPF\u30d7\u30ed\u30bb\u30b9\u3092\u958b\u59cb\u3057\u307e\u3059\u3002<br>\u756a\u53f7\uff08\u3053\u3053\u3067\u306f\u300c1\u300d\uff09\u306f<strong>\u30d7\u30ed\u30bb\u30b9ID<\/strong>\u3067\u3001\u30eb\u30fc\u30bf\u5185\u90e8\u3067\u306e\u8b58\u5225\u7528\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>router ospf 1<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">2. \u30eb\u30fc\u30bfID\u306e\u78ba\u8a8d\u30fb\u8a2d\u5b9a<\/h2>\n\n\n\n<p>OSPF\u3067\u306f\u300c\u30eb\u30fc\u30bfID\uff08Router-ID\uff09\u300d\u304c\u8b58\u5225\u5b50\u3068\u3057\u3066\u91cd\u8981\u3067\u3059\u3002<br>\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u300c\u6700\u3082\u5927\u304d\u3044\u30eb\u30fc\u30d7\u30d0\u30c3\u30af\u30a2\u30c9\u30ec\u30b9\u300d\u307e\u305f\u306f\u300c\u6700\u3082\u5927\u304d\u3044\u7269\u7406\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9IP\u300d\u304c\u4f7f\u308f\u308c\u307e\u3059\u304c\u3001\u660e\u793a\u7684\u306b\u8a2d\u5b9a\u3059\u308b\u306e\u304c\u4e00\u822c\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>router ospf 1\n router-id 1.1.1.1<\/code><\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u203b router-id \u306f OSPF\u30d7\u30ed\u30bb\u30b9\u3092\u518d\u8d77\u52d5\u3057\u306a\u3044\u3068\u53cd\u6620\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">3. \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u6307\u5b9a\u3068\u30a8\u30ea\u30a2\u8a2d\u5b9a<\/h2>\n\n\n\n<p>OSPF\u306b\u53c2\u52a0\u3055\u305b\u305f\u3044\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3092<code>network<\/code>\u30b3\u30de\u30f3\u30c9\u3067\u6307\u5b9a\u3057\u307e\u3059\u3002<br>\u30a8\u30ea\u30a2\u756a\u53f7\uff08\u901a\u5e38\u306f<code>area 0<\/code>\u304c\u30d0\u30c3\u30af\u30dc\u30fc\u30f3\uff09\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>router ospf 1\n network 192.168.1.0 0.0.0.255 area 0\n network 10.0.0.0 0.0.0.255 area 0\n<\/code><\/pre>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u203b \u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9\u30de\u30b9\u30af\u306f\u300c\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306e\u9006\u6570\u300d\u3067\u3059\u3002<br>\u4f8b\uff1a255.255.255.0 \u2192 0.0.0.255<\/p>\n<\/blockquote>\n\n\n\n<p>\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d<strong>\u8a2d\u5b9a\u3068\u3057\u3066\u306f\u3053\u3053\u307e\u3067\u3067\u3059\u3002<\/strong>\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d\uff1d<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">4. \u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u5358\u4f4d\u3067\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5\uff08\u4efb\u610f\u3067\u8a2d\u5b9a\uff09<\/h2>\n\n\n\n<p>\u8fd1\u5e74\u306e\u8a2d\u8a08\u3067\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u5358\u4f4d\u3067OSPF\u3092\u6709\u52b9\u5316\u3059\u308b\u65b9\u6cd5\u3082\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>interface GigabitEthernet0\/0\n ip address 192.168.1.1 255.255.255.0\n ip ospf 1 area 0\n<\/code><\/pre>\n\n\n\n<p>\u3053\u306e\u65b9\u6cd5\u306f\u30b7\u30f3\u30d7\u30eb\u3067\u3001\u5bfe\u8c61\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u3092\u660e\u78ba\u306b\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">5. \u30b3\u30b9\u30c8\u306e\u8abf\u6574\uff08\u4efb\u610f\u3067\u8a2d\u5b9a\uff09<\/h2>\n\n\n\n<p>\u7d4c\u8def\u9078\u629e\u3092\u5236\u5fa1\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306e<strong>\u30b3\u30b9\u30c8<\/strong>\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>interface GigabitEthernet0\/0\n ip ospf cost 10\n<\/code><\/pre>\n\n\n\n<p>\u307e\u305f\u306f\u5168\u4f53\u57fa\u6e96\u3092\u5909\u66f4\u3059\u308b\u5834\u5408\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>router ospf 1\n auto-cost reference-bandwidth 10000   \u2190 10Gbps\u5bfe\u5fdc<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">6. DR\/BDR \u9078\u51fa\u306e\u5236\u5fa1\uff08\u4efb\u610f\u3067\u8a2d\u5b9a\uff09<\/h2>\n\n\n\n<p>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u74b0\u5883\uff08\u4f8b\uff1aLAN\uff09\u3067\u3001DR\/BDR\u3092\u5236\u5fa1\u3059\u308b\u5834\u5408\u306f\u512a\u5148\u5ea6\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>interface GigabitEthernet0\/1\n ip ospf priority 0     \u2190 DR\u9078\u51fa\u5bfe\u8c61\u5916<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">7. \u30cd\u30a4\u30d0\u30fc\u306e\u78ba\u8a8d\u30b3\u30de\u30f3\u30c9<\/h2>\n\n\n\n<p>\u8a2d\u5b9a\u5f8c\u3001\u96a3\u63a5\u95a2\u4fc2\u304c\u78ba\u7acb\u3057\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>show ip ospf neighbor<\/code><\/pre>\n\n\n\n<p>\u8868\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>Neighbor ID     Pri   State           Dead Time   Address         Interface\n2.2.2.2           1   FULL\/DR         00:00:33    192.168.1.2     Gig0\/0<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u9805\u76ee<\/th><th>\u8a2d\u5b9a\u5185\u5bb9<\/th><th>\u4f8b<\/th><\/tr><\/thead><tbody><tr><td>OSPF\u958b\u59cb<\/td><td>\u30d7\u30ed\u30bb\u30b9ID\u6307\u5b9a<\/td><td><code>router ospf 1<\/code><\/td><\/tr><tr><td>\u30eb\u30fc\u30bfID<\/td><td>\u56fa\u5b9a\u8b58\u5225\u5b50<\/td><td><code>router-id 1.1.1.1<\/code><\/td><\/tr><tr><td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6307\u5b9a<\/td><td>\u53c2\u52a0\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9<\/td><td><code>network 192.168.1.0 0.0.0.255 area 0<\/code><\/td><\/tr><tr><td>\u30b3\u30b9\u30c8\u8a2d\u5b9a<\/td><td>\u7d4c\u8def\u512a\u5148\u5ea6\u8abf\u6574<\/td><td><code>ip ospf cost 10<\/code><\/td><\/tr><tr><td>\u78ba\u8a8d\u30b3\u30de\u30f3\u30c9<\/td><td>\u30cd\u30a4\u30d0\u30fc\u30fb\u30eb\u30fc\u30c8\u78ba\u8a8d<\/td><td><code>show ip ospf neighbor<\/code>, <code>show ip route ospf<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>1. OSPF\u30d7\u30ed\u30bb\u30b9\u306e\u6709\u52b9\u5316 OSPF\u30d7\u30ed\u30bb\u30b9\u3092\u958b\u59cb\u3057\u307e\u3059\u3002\u756a\u53f7\uff08\u3053\u3053\u3067\u306f\u300c1\u300d\uff09\u306f\u30d7\u30ed\u30bb\u30b9ID\u3067\u3001\u30eb\u30fc\u30bf\u5185\u90e8\u3067\u306e\u8b58\u5225\u7528\u3067\u3059\u3002 2. \u30eb\u30fc\u30bfID\u306e\u78ba\u8a8d\u30fb\u8a2d\u5b9a OSPF\u3067\u306f\u300c\u30eb\u30fc\u30bfID\uff08Router-ID\uff09\u300d\u304c\u8b58\u5225\u5b50\u3068\u3057 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1462","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/pages\/1462","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1462"}],"version-history":[{"count":2,"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/pages\/1462\/revisions"}],"predecessor-version":[{"id":1464,"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/pages\/1462\/revisions\/1464"}],"wp:attachment":[{"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1462"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}