{"id":1683,"date":"2025-11-29T04:06:54","date_gmt":"2025-11-28T19:06:54","guid":{"rendered":"https:\/\/mylifeisbeautiful555.net\/?page_id=1683"},"modified":"2025-11-29T04:06:54","modified_gmt":"2025-11-28T19:06:54","slug":"%e3%82%a2%e3%83%88%e3%83%aa%e3%83%93%e3%83%a5%e3%83%bc%e3%83%88-local-preference","status":"publish","type":"page","link":"https:\/\/mylifeisbeautiful555.net\/?page_id=1683","title":{"rendered":"\u30a2\u30c8\u30ea\u30d3\u30e5\u30fc\u30c8 Local Preference"},"content":{"rendered":"\n<p>BGP\u306e <strong>Local Preference\uff08\u30ed\u30fc\u30ab\u30eb\u30d7\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9 \/ LOCAL_PREF\uff09<\/strong> \u3068\u306f\u3001<br><strong>AS \u5185\u90e8\u3067\u300c\u3069\u306e\u7d4c\u8def\u3092\u512a\u5148\u3057\u3066\u4f7f\u3046\u304b\u300d\u3092\u6c7a\u3081\u308b\u305f\u3081\u306e\u5024<\/strong> \u3067\u3059\u3002<br><strong>\u6570\u5024\u304c\u5927\u304d\u3044\u307b\u3069\u512a\u5148\u3055\u308c\u307e\u3059\u3002<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>iBGP\u5185\u3067\u7d4c\u8def\u9078\u629e\u306b\u4f7f\u308f\u308c\u308b\u6307\u6a19<\/strong><\/li>\n\n\n\n<li>AS\u5916\u306b\u306f\u9001\u3089\u308c\u305a\u3001<strong>\u540c\u4e00AS\u5185\u3060\u3051\u3067\u6709\u52b9<\/strong><\/li>\n\n\n\n<li>\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u306f <strong>Cisco\uff1d100<\/strong><\/li>\n\n\n\n<li><strong>\u6570\u5024\u304c\u5927\u304d\u3044\u7d4c\u8def\u304c\u512a\u5148\u3055\u308c\u308b<\/strong><\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"638\" height=\"590\" src=\"https:\/\/mylifeisbeautiful555.net\/wp-content\/uploads\/2025\/11\/image-9.png\" alt=\"\" class=\"wp-image-1684\" style=\"width:408px;height:auto\" srcset=\"https:\/\/mylifeisbeautiful555.net\/wp-content\/uploads\/2025\/11\/image-9.png 638w, https:\/\/mylifeisbeautiful555.net\/wp-content\/uploads\/2025\/11\/image-9-300x277.png 300w\" sizes=\"auto, (max-width: 638px) 100vw, 638px\" \/><\/figure>\n\n\n\n<h1 class=\"wp-block-heading\">LOCAL_PREF \u306e\u7528\u9014\uff08\u4ee3\u8868\u4f8b\uff09<\/h1>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u51fa\u53e3\u30eb\u30fc\u30bf\u3092\u6307\u5b9a\u3057\u305f\u3044\uff08\u30e1\u30a4\u30f3\u56de\u7dda\uff0f\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u56de\u7dda\uff09<\/strong><\/h3>\n\n\n\n<p>\u4f8b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u56de\u7ddaA\uff08\u9ad8\u54c1\u8cea\uff09\uff1aLOCAL_PREF 200<\/li>\n\n\n\n<li>\u56de\u7ddaB\uff08\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\uff09\uff1aLOCAL_PREF 50<br>\u2192 AS\u5185\u306e\u30eb\u30fc\u30bf\u306f\u5fc5\u305a\u300cLOCAL_PREF 200\u300d\u306e\u56de\u7ddaA\u3092\u9078\u3076\u3002<\/li>\n<\/ul>\n\n\n\n<h1 class=\"wp-block-heading\">\u7d4c\u8def\u9078\u629e\u306b\u304a\u3051\u308b LOCAL_PREF \u306e\u4f4d\u7f6e<\/h1>\n\n\n\n<p>BGP\u306e\u7d4c\u8def\u9078\u629e\u30eb\u30fc\u30eb\uff08\u4e0a\u4f4d\u304b\u3089\u9806\u756a\uff09<br>1&#xfe0f;&#x20e3; \u91cd\u307f\uff08Cisco\u72ec\u81ea\uff09<br>2&#xfe0f;&#x20e3; <strong>LOCAL_PREF\uff08\u9ad8\u3044\u65b9\uff09 \u2190 \u30b3\u30b3\uff01<\/strong><br>3&#xfe0f;&#x20e3; \u81ea\u8eab\u304c\u767a\u4fe1\u3057\u305f\u7d4c\u8def<br>4&#xfe0f;&#x20e3; AS-PATH\uff08\u77ed\u3044\u65b9\uff09<br>5&#xfe0f;&#x20e3; ORIGIN<br>6&#xfe0f;&#x20e3; MED<br>\u2026\u4ee5\u4e0b\u7565<\/p>\n\n\n\n<h1 class=\"wp-block-heading\">Cisco IOS \u8a2d\u5b9a\u4f8b<\/h1>\n\n\n\n<h3 class=\"wp-block-heading\">\u25a0 \u7279\u5b9a\u306e\u7d4c\u8def\u306b LOCAL_PREF \u3092\u8a2d\u5b9a\u3059\u308b\uff08route-map\uff09<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>route-map SET-LP permit 10\n  set local-preference 200\n\nrouter bgp 65000\n  neighbor 192.0.2.1 route-map SET-LP in\n<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u25a0 \u7279\u5b9a\u306e\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u306e\u307f\u306b\u9069\u7528\u3057\u305f\u3044\u5834\u5408<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>ip prefix-list PREF permit 203.0.113.0\/24\n\nroute-map SET-LP permit 10\n  match ip address prefix-list PREF\n  set local-preference 300\n\nrouter bgp 65000\n  neighbor 192.0.2.1 route-map SET-LP in<\/code><\/pre>\n\n\n\n<h1 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h1>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u5185\u5bb9<\/th><th>\u8aac\u660e<\/th><\/tr><\/thead><tbody><tr><td>LOCAL_PREF<\/td><td>AS\u5185\u3067\u306e\u51fa\u53e3\u9078\u629e\u7528\u306e\u6307\u6a19<\/td><\/tr><tr><td>\u5927\u304d\u3044\u307b\u3069\u512a\u5148<\/td><td>100 \u2192 200 \u306e\u307b\u3046\u304c\u512a\u5148<\/td><\/tr><tr><td>iBGP\u5185\u90e8\u306e\u307f\u6709\u52b9<\/td><td>eBGP \u306b\u306f\u9001\u3089\u308c\u306a\u3044<\/td><\/tr><tr><td>\u4e3b\u306a\u7528\u9014<\/td><td>\u30de\u30eb\u30c1\u30db\u30fc\u30e0\u3067\u306e\u512a\u5148\u56de\u7dda\u8a2d\u5b9a<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>BGP\u306e Local Preference\uff08\u30ed\u30fc\u30ab\u30eb\u30d7\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9 \/ LOCAL_PREF\uff09 \u3068\u306f\u3001AS \u5185\u90e8\u3067\u300c\u3069\u306e\u7d4c\u8def\u3092\u512a\u5148\u3057\u3066\u4f7f\u3046\u304b\u300d\u3092\u6c7a\u3081\u308b\u305f\u3081\u306e\u5024 \u3067\u3059\u3002\u6570\u5024\u304c\u5927\u304d\u3044\u307b\u3069\u512a\u5148\u3055\u308c\u307e\u3059\u3002 LOCAL_PREF  [&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-1683","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/pages\/1683","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=1683"}],"version-history":[{"count":1,"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/pages\/1683\/revisions"}],"predecessor-version":[{"id":1685,"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=\/wp\/v2\/pages\/1683\/revisions\/1685"}],"wp:attachment":[{"href":"https:\/\/mylifeisbeautiful555.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1683"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}