{"id":1422,"date":"2025-10-18T03:07:01","date_gmt":"2025-10-17T18:07:01","guid":{"rendered":"https:\/\/mylifeisbeautiful555.net\/?page_id=1422"},"modified":"2025-10-18T03:07:01","modified_gmt":"2025-10-17T18:07:01","slug":"bgp-neighbor%e3%81%8c%e8%b2%bc%e3%82%8c%e3%81%aa%e3%81%84%e5%8e%9f%e5%9b%a0","status":"publish","type":"page","link":"https:\/\/mylifeisbeautiful555.net\/?page_id=1422","title":{"rendered":"BGP neighbor\u304c\u8cbc\u308c\u306a\u3044\u539f\u56e0"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u2460 \u7269\u7406\u7684\uff0fIP\u758e\u901a\u306e\u78ba\u8a8d<\/h2>\n\n\n\n<p>\u307e\u305a\u306f<strong>TCP\u63a5\u7d9a\u304c\u6210\u7acb\u3057\u3066\u3044\u308b\u304b<\/strong>\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30c1\u30a7\u30c3\u30af\u9805\u76ee<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u78ba\u8a8d\u5185\u5bb9<\/th><th>\u30b3\u30de\u30f3\u30c9\u4f8b<\/th><th>OK\u72b6\u614b<\/th><\/tr><\/thead><tbody><tr><td>\u96a3\u63a5\u30eb\u30fc\u30bf\u306bping\u901a\u308b\u304b<\/td><td>ping &lt;neighbor-IP><\/td><td>\u5fdc\u7b54\u3042\u308a<\/td><\/tr><tr><td>TCP\/179\u304c\u958b\u3044\u3066\u3044\u308b\u304b<\/td><td>telnet &lt;neighbor-IP> 179<\/td><td>\u63a5\u7d9a\u6210\u529f<\/td><\/tr><tr><td>\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3067\u76f8\u624bIP\u306b\u5230\u9054\u3067\u304d\u308b\u304b<\/td><td>traceroute &lt;neighbor-IP><\/td><td>\u6b63\u5e38\u7d4c\u8def<\/td><\/tr><tr><td>ACL\/Firewall\u3067179\/TCP\u3092\u30d6\u30ed\u30c3\u30af\u3057\u3066\u3044\u306a\u3044\u304b<\/td><td>\u2013<\/td><td>\u901a\u904e\u8a31\u53ef<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>E-BGP\u3067\u306f\u901a\u5e38\u3001\u76f4\u63a5\u63a5\u7d9a\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9 \u3092\u4f7f\u3046\u305f\u3081\u3001\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u8a2d\u5b9a\u3084\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9shutdown\u306b\u3082\u6ce8\u610f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2461AS\u756a\u53f7\u306e\u8a2d\u5b9a\u30df\u30b9<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u81ea\u5206\u3068\u76f8\u624b\u306e <strong>remote-as<\/strong> \u8a2d\u5b9a\u304c\u4e00\u81f4\u3057\u3066\u3044\u308b\u304b\u3002<\/li>\n\n\n\n<li>I-BGP\uff08\u540c\u4e00AS\uff09\u306a\u306e\u304b E-BGP\uff08\u7570\u306a\u308bAS\uff09\u306a\u306e\u304b\u6574\u7406\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>router bgp 65001\n neighbor 192.0.2.2 remote-as 65002   \u2190 \u76f8\u624bAS\u756a\u53f7\u304c\u6b63\u3057\u3044\u304b<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u2462\u30cd\u30af\u30b9\u30c8\u30db\u30c3\u30d7IP\u306e\u6307\u5b9a\u65b9\u6cd5<\/h2>\n\n\n\n<p>E-BGP\u3067\u306f\u901a\u5e38\u3001<strong>\u76f4\u63a5\u63a5\u7d9a\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306eIP<\/strong>\u3067\u30d4\u30a2\u3092\u7d50\u3076\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<br>I-BGP\u3067\u306f <strong>Loopback\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9<\/strong>\u3092\u4f7f\u3046\u3053\u3068\u304c\u591a\u304f\u3001<br>\u305d\u306e\u5834\u5408\u306f <code>update-source<\/code> \u306e\u8a2d\u5b9a\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>router bgp 65001\n neighbor 10.1.1.1 remote-as 65001\n neighbor 10.1.1.1 update-source Loopback0<\/code><\/pre>\n\n\n\n<p>Loopback\u3067\u30d4\u30a2\u30ea\u30f3\u30b0\u3057\u3066\u3044\u308b\u306e\u306b <code>update-source<\/code> \u304c\u306a\u3044\u3068\u3001<br>TCP\u63a5\u7d9a\u3067\u304d\u305a\u306b <strong>Active<\/strong> \u72b6\u614b\u3067\u6b62\u307e\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2463 TTL \/ eBGP\u30de\u30eb\u30c1\u30db\u30c3\u30d7\u8a2d\u5b9a<\/h2>\n\n\n\n<p>E-BGP\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067 <strong>TTL=1<\/strong>\uff08\u76f4\u7d50\u306e\u307f\u8a31\u53ef\uff09\u3067\u3059\u3002<br>\u9593\u306b\u30eb\u30fc\u30bf\u304c\u3042\u308b\u5834\u5408\uff08\u4f8b\u3048\u3070\u9593\u63a5\u63a5\u7d9a\u3084VPN\u8d8a\u3048\uff09\u306f\u3001<br><code>ebgp-multihop<\/code> \u306e\u8a2d\u5b9a\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>router bgp 65001\n neighbor 203.0.113.2 remote-as 65002\n neighbor 203.0.113.2 ebgp-multihop 2<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u2464 \u30cd\u30a4\u30d0\u30fcIP\u306e\u5230\u9054\u6027\uff08Next Hop\uff09<\/h2>\n\n\n\n<p>\u76f8\u624b\u306eIP\u304c\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u306b\u5b58\u5728\u3057\u306a\u3044\u3068\u78ba\u7acb\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b9\u30bf\u30c6\u30a3\u30c3\u30af\u30eb\u30fc\u30c8 or IGP\u3067\u30cd\u30a4\u30d0\u30fcIP\u3092\u89e3\u6c7a\u3067\u304d\u308b\u304b\u78ba\u8a8d\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>show ip route &lt;neighbor-IP><\/code><\/pre>\n\n\n\n<p>\u2192 \u30cd\u30a4\u30d0\u30fc\u5b9b\u306e\u30eb\u30fc\u30c8\u304c\u5b58\u5728\u3059\u308c\u3070OK\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u2465 BGP\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u4e0d\u4e00\u81f4<\/h2>\n\n\n\n<p>\u901a\u5e38\u306fBGP-4\u540c\u58eb\u306a\u306e\u3067\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u304c\u3001<br>\u53e4\u3044\u6a5f\u5668\u540c\u58eb\u3060\u3068\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u4e0d\u4e00\u81f4\u3067 <code>Notification<\/code> \u304c\u8fd4\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u203b\u73fe\u884c\u3067\u306f\u307b\u307cBGP-4\u56fa\u5b9a\u306a\u306e\u3067\u3001\u307e\u308c\u306a\u30b1\u30fc\u30b9\u3067\u3059\u3002<\/p>\n<\/blockquote>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u2466 \u8a8d\u8a3c\uff08MD5\u306a\u3069\uff09\u306e\u4e0d\u4e00\u81f4<\/h2>\n\n\n\n<p>BGP\u30d4\u30a2\u9593\u3067MD5\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u5834\u5408\u3001<br><strong>\u4e21\u65b9\u3067\u540c\u3058\u30d1\u30b9\u30ef\u30fc\u30c9<\/strong>\u3092\u8a2d\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>neighbor 192.0.2.2 password cisco123\n<\/code><\/pre>\n\n\n\n<p>\u7247\u65b9\u3060\u3051\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b or \u30d1\u30b9\u30ef\u30fc\u30c9\u9055\u3044 \u2192 \u3059\u3050\u306b\u30bb\u30c3\u30b7\u30e7\u30f3\u5207\u65ad\u3055\u308c\u308b\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u2467 \u30eb\u30fc\u30bfID\u306e\u7af6\u5408<\/h2>\n\n\n\n<p>\u540c\u4e00AS\u5185\uff08I-BGP\uff09\u3067 <strong>Router-ID\u304c\u91cd\u8907<\/strong>\u3057\u3066\u3044\u308b\u3068\u78ba\u7acb\u3057\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>show ip bgp summary\n<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Router-ID \u304c\u4e00\u610f\u304b\u78ba\u8a8d\u3002<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u2468 AFI\/SAFI\uff08Address Family\uff09\u306e\u8a2d\u5b9a<\/h2>\n\n\n\n<p>IPv4\u3068IPv6\u3067BGP\u306f\u5225\u30bb\u30c3\u30b7\u30e7\u30f3\u6271\u3044\u3067\u3059\u3002<br><strong>IPv4\u7528\u306eneighbor\u8a2d\u5b9a\u3057\u304b\u306a\u3044<\/strong>\u306e\u306bIPv6\u3067\u63a5\u7d9a\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u78ba\u7acb\u3057\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>router bgp 65001\n address-family ipv4\n  neighbor 192.0.2.2 activate\n<\/code><\/pre>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">\u2469 \u30bb\u30c3\u30b7\u30e7\u30f3\u72b6\u614b\uff08\u30b9\u30c6\u30fc\u30c8\u30de\u30b7\u30f3\uff09\u306e\u78ba\u8a8d<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>show ip bgp summary\n<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u72b6\u614b<\/th><th>\u610f\u5473<\/th><th>\u5bfe\u51e6<\/th><\/tr><\/thead><tbody><tr><td><strong>Idle<\/strong><\/td><td>\u8a2d\u5b9a\u30df\u30b9\uff0f\u758e\u901a\u306a\u3057<\/td><td>IP\u30fbAS\u78ba\u8a8d<\/td><\/tr><tr><td><strong>Active<\/strong><\/td><td>TCP\u63a5\u7d9a\u518d\u8a66\u884c\u4e2d<\/td><td>\u76f8\u624bIP\u30fbACL\u78ba\u8a8d<\/td><\/tr><tr><td><strong>OpenSent \/ OpenConfirm<\/strong><\/td><td>OPEN\u4ea4\u63db\u4e2d<\/td><td>\u30d0\u30fc\u30b8\u30e7\u30f3\u30fbAS\u4e00\u81f4\u78ba\u8a8d<\/td><\/tr><tr><td><strong>Established<\/strong><\/td><td>\u6b63\u5e38<\/td><td>OK\uff01<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u30c8\u30e9\u30d6\u30eb\u6642\u306e\u8a3a\u65ad\u30b3\u30de\u30f3\u30c9\u96c6<\/h1>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u76ee\u7684<\/th><th>\u30b3\u30de\u30f3\u30c9<\/th><\/tr><\/thead><tbody><tr><td>BGP\u72b6\u614b\u78ba\u8a8d<\/td><td>show ip bgp summary<\/td><\/tr><tr><td>\u30d4\u30a2\u8a73\u7d30<\/td><td>show ip bgp neighbors &lt;IP><\/td><\/tr><tr><td>\u7d4c\u8def\u53d7\u4fe1\u78ba\u8a8d<\/td><td>show ip bgp neighbors &lt;IP> received-routes<\/td><\/tr><tr><td>\u7d4c\u8def\u9001\u4fe1\u78ba\u8a8d<\/td><td>show ip bgp neighbors &lt;IP> advertised-routes<\/td><\/tr><tr><td>TCP\u30bb\u30c3\u30b7\u30e7\u30f3\u78ba\u8a8d<\/td><td>show tcp brief<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h1 class=\"wp-block-heading\">\u5178\u578b\u7684\u306a\u300c\u8cbc\u308c\u306a\u3044\u300d\u539f\u56e0\u307e\u3068\u3081<\/h1>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u539f\u56e0<\/th><th>\u5185\u5bb9<\/th><th>\u5bfe\u7b56<\/th><\/tr><\/thead><tbody><tr><td>AS\u756a\u53f7\u4e0d\u4e00\u81f4<\/td><td>remote-as\u30df\u30b9<\/td><td>\u53cc\u65b9\u78ba\u8a8d<\/td><\/tr><tr><td>IP\u5230\u9054\u6027\u306a\u3057<\/td><td>ping\u901a\u3089\u306a\u3044<\/td><td>\u30eb\u30fc\u30c8\u8ffd\u52a0<\/td><\/tr><tr><td>TTL\u5236\u9650<\/td><td>ebgp-multihop\u672a\u8a2d\u5b9a<\/td><td>hop\u6570\u8abf\u6574<\/td><\/tr><tr><td>Loopback\u4f7f\u7528<\/td><td>update-source\u672a\u8a2d\u5b9a<\/td><td>\u8a2d\u5b9a\u8ffd\u52a0<\/td><\/tr><tr><td>ACL\/FW\u906e\u65ad<\/td><td>TCP179\u30d6\u30ed\u30c3\u30af<\/td><td>ACL\u958b\u653e<\/td><\/tr><tr><td>\u8a8d\u8a3c\u4e0d\u4e00\u81f4<\/td><td>MD5\u4e0d\u4e00\u81f4<\/td><td>\u540c\u4e00\u30d1\u30b9\u8a2d\u5b9a<\/td><\/tr><tr><td>Router-ID\u91cd\u8907<\/td><td>\u540c\u4e00ID\u3067\u7af6\u5408<\/td><td>ID\u5909\u66f4<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-dots\"\/>\n","protected":false},"excerpt":{"rendered":"<p>\u2460 \u7269\u7406\u7684\uff0fIP\u758e\u901a\u306e\u78ba\u8a8d \u307e\u305a\u306fTCP\u63a5\u7d9a\u304c\u6210\u7acb\u3057\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002 \u30c1\u30a7\u30c3\u30af\u9805\u76ee \u78ba\u8a8d\u5185\u5bb9 \u30b3\u30de\u30f3\u30c9\u4f8b OK\u72b6\u614b \u96a3\u63a5\u30eb\u30fc\u30bf\u306bping\u901a\u308b\u304b ping &lt;neighbor-IP> \u5fdc\u7b54\u3042\u308a TCP\/179\u304c [&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-1422","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/pages\/1422","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=1422"}],"version-history":[{"count":5,"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/pages\/1422\/revisions"}],"predecessor-version":[{"id":1427,"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/pages\/1422\/revisions\/1427"}],"wp:attachment":[{"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1422"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}