{"id":2772,"date":"2024-08-22T16:59:37","date_gmt":"2024-08-22T07:59:37","guid":{"rendered":"http:\/\/daimaru-tech-blog.com\/?p=2767"},"modified":"2025-07-05T12:05:28","modified_gmt":"2025-07-05T03:05:28","slug":"%e3%80%90%e3%83%8d%e3%83%83%e3%83%88%e3%83%af%e3%83%bc%e3%82%af%e5%85%a5%e9%96%80%e3%80%91bgp%e6%8b%a1%e5%bc%b5%e3%82%b3%e3%83%9f%e3%83%a5%e3%83%8b%e3%83%86%e3%82%a3%ef%bc%88rfc4360%ef%bc%89","status":"publish","type":"post","link":"https:\/\/daimaru-tech-blog.com\/?p=2772","title":{"rendered":"\u3010\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5165\u9580\u3011BGP\u62e1\u5f35\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\uff08RFC4360\uff09"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u306f\u3058\u3081\u306b<\/h2>\n\n\n\n<p>\u3053\u3093\u306b\u3061\u306f\u3002<strong><span class=\"swl-inline-color has-swl-deep-02-color\"><span class=\"swl-marker mark_blue\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u300c\u3060\u3044\u307e\u308b\u300d<\/span><\/span><\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u306f\u3001<strong><span style=\"color:#008000\" class=\"swl-inline-color\"><span class=\"swl-marker mark_green\">\u6700\u8fd1\u8aad\u3093\u3060RFC4360\uff08BGP \u62e1\u5f35\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\uff09\u306b\u3064\u3044\u3066\u3001\u307e\u3068\u3081\u3066\u3044\u304d\u305f\u3044<\/span><\/span><\/strong>\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e<strong><span style=\"color:#ff0000\" class=\"swl-inline-color\"><span class=\"swl-marker mark_orange\">RFC\u3092\u8aad\u3093\u3060\u3060\u3051\u3067\u306f\u7406\u89e3\u3067\u304d\u306a\u3044\u90e8\u5206\u304c\u591a\u304b\u3063\u305f\u306e\u3067\u3001\u4eca\u5f8c\u7406\u89e3\u304c\u6df1\u307e\u308b\u5ea6\u306b\u3053\u306e\u8a18\u4e8b\u3092\u66f4\u65b0\u3057\u3066\u3044\u304d\u305f\u3044<\/span><\/span><\/strong>\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"red\"><div class=\"c-balloon__icon -circle\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/daimaru-tech-blog.com\/wp-content\/uploads\/2022\/12\/cropped-\u3060\u3044\u307e\u308b.webp\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong><span style=\"color:#ff0000\" class=\"swl-inline-color\">\u7406\u89e3\u529b\u304c\u4e4f\u3057\u3044\u306e\u3067\u304a\u8a31\u3057\u3092\u30fb\u30fb\u30fb\u30fb\u30fb<\/span><\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<center><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-2776062481390161\"\n     crossorigin=\"anonymous\"><\/script>\n<ins class=\"adsbygoogle\"\n     style=\"display:block\"\n     data-ad-format=\"autorelaxed\"\n     data-ad-client=\"ca-pub-2776062481390161\"\n     data-ad-slot=\"3964253637\"><\/ins>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><\/center>\n\n\n\n<h2 class=\"wp-block-heading\">RFC4360\u3092\u8aad\u3093\u3067\u307f\u305f\u3051\u3069\u308f\u304b\u3089\u3093\u306e\u3067\u305f\u3060\u307e\u3068\u3081\u3066\u307f\u305f<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u62e1\u5f35\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306e\u6982\u8981<\/h3>\n\n\n\n<p>BGP\u306e\u62e1\u5f35\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306f\u3001<strong><span style=\"color:#008000\" class=\"swl-inline-color\"><span class=\"swl-marker mark_green\">Type16\u306eTransitive\u30aa\u30d7\u30b7\u30e7\u30f3<\/span><\/span><\/strong>\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"blue\"><div class=\"c-balloon__icon -circle\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/daimaru-tech-blog.com\/wp-content\/uploads\/2022\/12\/cropped-\u3060\u3044\u307e\u308b.webp\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong><span style=\"color:#0000ff\" class=\"swl-inline-color\">Transitive\u3068\u306f\u3001BGP\u30eb\u30fc\u30bf\u304c\u7406\u89e3\u3067\u304d\u306a\u3044\u53ef\u80fd\u6027\u3082\u3042\u308b\u304c\u3001\u30cd\u30a4\u30d0\u30fc\u306b\u305d\u306e\u307e\u307e\u901a\u77e5\u3059\u308b\u5c5e\u6027\u306e\u3053\u3068<\/span><\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<p>\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306f<strong><span style=\"color:#008000\" class=\"swl-inline-color\"><span class=\"swl-marker mark_green\">\u57fa\u672c\u7684\u306b8\u30aa\u30af\u30c6\u30c3\u30c8\u3067\u69cb\u6210\u3055\u308c\u3001Type\u30d5\u30a3\u30fc\u30eb\u30c9\u304c\u300c1 or 2\u30aa\u30af\u30c6\u30c3\u30c8\u300d<\/span><\/span><\/strong>\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u300c1 or 2\u300d\u3068\u3044\u3046\u306e\u306f\u3001<strong><span style=\"color:#ff0000\" class=\"swl-inline-color\"><span class=\"swl-marker mark_orange\">\u901a\u5e38\u306e\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\uff08IANA\u3067\u5b9a\u7fa9\u3055\u308c\u305f\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\uff09\u304c\u300c1\u30aa\u30af\u30c6\u30c3\u30c8\u300d<\/span><\/span><\/strong>\u3001<strong><span style=\"color:#0000ff\" class=\"swl-inline-color\"><span class=\"swl-marker mark_blue\">\u62e1\u5f35\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u304c\u300c2\u30aa\u30af\u30c6\u30c3\u30c8\u300d<\/span><\/span><\/strong>\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong><span style=\"color:#008000\" class=\"swl-inline-color\"><span class=\"swl-marker mark_green\">\u6b8b\u308a\u306e\u30aa\u30af\u30c6\u30c3\u30c8\u6570\u304cValue\u30d5\u30a3\u30fc\u30eb\u30c9<\/span><\/span><\/strong>\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3067\u306f\u3001\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u8a73\u7d30\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Type Field<\/h4>\n\n\n\n<p>\u4eca\u56de\u307e\u3068\u3081\u3066\u3044\u308b\u306e\u306f\u62e1\u5f35\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306e\u305f\u3081\u30012\u30aa\u30af\u30c6\u30c3\u30c8\u6642\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306eRFC\u3067\u306f\u3001\u6700\u521d\u306e1\u30aa\u30af\u30c6\u30c3\u30c8\u3092\u300cHigh-Order Octet\u300d\u3001\u5f8c\u534a\u306e1\u30aa\u30af\u30c6\u30c3\u30c8\u3092\u300cLower-Order Octet\u300d\u3068\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u300cHigh-Order Octet\u300d\u306f\u3001IANA\u30d3\u30c3\u30c8\u3068Transitive\u30d3\u30c3\u30c8\u306e\uff12\u3064\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-group has-border -border02\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\">\n<center><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" 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as=&quot;geometry&quot; \/&gt;&#10;        &lt;\/mxCell&gt;&#10;        &lt;mxCell id=&quot;sk3xwDn5rNM3DXPgnPTf-6&quot; value=&quot;&quot; style=&quot;rounded=0;whiteSpace=wrap;html=1;strokeWidth=2;&quot; vertex=&quot;1&quot; parent=&quot;1&quot;&gt;&#10;          &lt;mxGeometry x=&quot;440&quot; y=&quot;280&quot; width=&quot;80&quot; height=&quot;80&quot; as=&quot;geometry&quot; \/&gt;&#10;        &lt;\/mxCell&gt;&#10;        &lt;mxCell id=&quot;sk3xwDn5rNM3DXPgnPTf-7&quot; value=&quot;&quot; style=&quot;rounded=0;whiteSpace=wrap;html=1;strokeWidth=2;&quot; vertex=&quot;1&quot; parent=&quot;1&quot;&gt;&#10;          &lt;mxGeometry x=&quot;520&quot; y=&quot;280&quot; width=&quot;80&quot; height=&quot;80&quot; as=&quot;geometry&quot; \/&gt;&#10;        &lt;\/mxCell&gt;&#10;        &lt;mxCell id=&quot;sk3xwDn5rNM3DXPgnPTf-8&quot; value=&quot;&quot; style=&quot;rounded=0;whiteSpace=wrap;html=1;strokeWidth=2;&quot; vertex=&quot;1&quot; parent=&quot;1&quot;&gt;&#10;          &lt;mxGeometry 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center; justify-content: unsafe center; width: 78px; height: 1px; padding-top: 113px; margin-left: 10px;\"><div data-drawio-colors=\"color: rgb(0, 0, 0); \" style=\"box-sizing: border-box; font-size: 0px; text-align: center;\"><div style=\"display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;\"><font style=\"font-size: 32px;\">I<\/font><\/div><\/div><\/div><\/foreignObject><text x=\"49\" y=\"117\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"12px\" text-anchor=\"middle\">I<\/text><\/switch><\/g><rect x=\"89\" y=\"73\" width=\"80\" height=\"80\" fill=\"rgb(255, 255, 255)\" stroke=\"rgb(0, 0, 0)\" stroke-width=\"2\" pointer-events=\"all\"\/><g transform=\"translate(-0.5 -0.5)\"><switch><foreignObject pointer-events=\"none\" width=\"100%\" height=\"100%\" requiredFeatures=\"http:\/\/www.w3.org\/TR\/SVG11\/feature#Extensibility\" style=\"overflow: visible; text-align: left;\"><div xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\" style=\"display: flex; align-items: unsafe center; justify-content: unsafe center; width: 78px; height: 1px; padding-top: 113px; margin-left: 90px;\"><div data-drawio-colors=\"color: rgb(0, 0, 0); \" style=\"box-sizing: border-box; font-size: 0px; text-align: center;\"><div style=\"display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;\"><font style=\"font-size: 32px;\">T<\/font><\/div><\/div><\/div><\/foreignObject><text x=\"129\" y=\"117\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"12px\" text-anchor=\"middle\">T<\/text><\/switch><\/g><rect x=\"169\" y=\"73\" width=\"80\" height=\"80\" fill=\"rgb(255, 255, 255)\" stroke=\"rgb(0, 0, 0)\" stroke-width=\"2\" pointer-events=\"all\"\/><rect x=\"249\" y=\"73\" width=\"80\" height=\"80\" fill=\"rgb(255, 255, 255)\" stroke=\"rgb(0, 0, 0)\" stroke-width=\"2\" pointer-events=\"all\"\/><rect x=\"329\" y=\"73\" width=\"80\" height=\"80\" fill=\"rgb(255, 255, 255)\" stroke=\"rgb(0, 0, 0)\" stroke-width=\"2\" pointer-events=\"all\"\/><rect x=\"409\" y=\"73\" width=\"80\" height=\"80\" fill=\"rgb(255, 255, 255)\" stroke=\"rgb(0, 0, 0)\" stroke-width=\"2\" pointer-events=\"all\"\/><rect x=\"489\" y=\"73\" width=\"80\" height=\"80\" fill=\"rgb(255, 255, 255)\" stroke=\"rgb(0, 0, 0)\" stroke-width=\"2\" pointer-events=\"all\"\/><path d=\"M 19.1 33 L 614.9 33\" fill=\"none\" stroke=\"#009900\" stroke-width=\"3\" stroke-miterlimit=\"10\" stroke-dasharray=\"3 3\" pointer-events=\"stroke\"\/><path d=\"M 12.35 33 L 21.35 28.5 L 19.1 33 L 21.35 37.5 Z\" fill=\"#009900\" stroke=\"#009900\" stroke-width=\"3\" stroke-miterlimit=\"10\" pointer-events=\"all\"\/><path d=\"M 621.65 33 L 612.65 37.5 L 614.9 33 L 612.65 28.5 Z\" fill=\"#009900\" stroke=\"#009900\" stroke-width=\"3\" stroke-miterlimit=\"10\" pointer-events=\"all\"\/><rect x=\"149\" y=\"0\" width=\"350\" height=\"30\" fill=\"none\" stroke=\"none\" pointer-events=\"all\"\/><g transform=\"translate(-0.5 -0.5)\"><switch><foreignObject pointer-events=\"none\" width=\"100%\" height=\"100%\" requiredFeatures=\"http:\/\/www.w3.org\/TR\/SVG11\/feature#Extensibility\" style=\"overflow: visible; text-align: left;\"><div xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\" style=\"display: flex; align-items: unsafe center; justify-content: unsafe center; width: 348px; height: 1px; padding-top: 15px; margin-left: 150px;\"><div data-drawio-colors=\"color: #009900; \" style=\"box-sizing: border-box; font-size: 0px; text-align: center;\"><div style=\"display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 153, 0); line-height: 1.2; pointer-events: all; font-weight: bold; white-space: normal; overflow-wrap: normal;\"><font style=\"font-size: 21px;\">Type Field\u306e\u6700\u521d\u306e1\u30aa\u30af\u30c6\u30c3\u30c8<\/font><\/div><\/div><\/div><\/foreignObject><text x=\"324\" y=\"19\" fill=\"#009900\" font-family=\"Helvetica\" font-size=\"12px\" text-anchor=\"middle\" font-weight=\"bold\">Type Field\u306e\u6700\u521d\u306e1\u30aa\u30af\u30c6\u30c3\u30c8<\/text><\/switch><\/g><\/g><switch><g requiredFeatures=\"http:\/\/www.w3.org\/TR\/SVG11\/feature#Extensibility\"\/><a transform=\"translate(0,-5)\" xlink:href=\"https:\/\/www.drawio.com\/doc\/faq\/svg-export-text-problems\" target=\"_blank\" rel=\"noopener\"><text text-anchor=\"middle\" font-size=\"10px\" x=\"50%\" y=\"100%\">Text is not SVG &#8211; cannot display<\/text><\/a><\/switch><\/svg><\/center>\n<\/div><\/div>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-swl-pale-04-background-color has-background\"><tbody><tr><td data-has-cell-bg=\"1\" data-text-color=\"white\"><span style=\"--the-cell-bg: #0000ff\" data-text-color=\"white\" aria-hidden=\"true\" class=\"swl-cell-bg\">&nbsp;<\/span><strong><span class=\"swl-inline-color has-white-color\">\u9805\u76ee<\/span><\/strong><\/td><td data-has-cell-bg=\"1\" data-text-color=\"white\"><strong><span class=\"swl-inline-color has-white-color\"><span style=\"--the-cell-bg: #0000ff\" data-text-color=\"white\" aria-hidden=\"true\" class=\"swl-cell-bg\">&nbsp;<\/span>\u8a73\u7d30<\/span><\/strong><\/td><\/tr><tr><td>IANA\u30d3\u30c3\u30c8\uff08I\uff09<\/td><td>&#8211; Value 0\uff1aFirst Come First Serve\u30dd\u30ea\u30b7\u30fc\u3092\u9069\u7528\u3000<br>\u3000\u203bFirst Come First Serve\uff1aBGP\u7d4c\u8def\u5b66\u7fd2\u6642\u3001\u4e00\u756a\u6700\u521d\u306b\u6765\u305f\u7d4c\u8def\u3092\u512a\u5148\u3068\u3059\u308b\u30dd\u30ea\u30b7\u30fc<br>&#8211; Value 1\uff1aStandard Action or Ealry IANA\u30dd\u30ea\u30b7\u30fc<br>\u3000\u203b\u5b9a\u7fa9\u3055\u308c\u305f\u30dd\u30ea\u30b7\u30fc<\/td><\/tr><tr><td>Transitive\u30d3\u30c3\u30c8\uff08T\uff09<\/td><td>&#8211; Value 0\uff1aTransitive<br>&#8211; Value 1\uff1anon-Transitive<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><strong><span style=\"color:#0000ff\" class=\"swl-inline-color\"><span class=\"swl-marker mark_blue\">\u5f8c\u534a\u306e\u30aa\u30af\u30c6\u30c3\u30c8<\/span><\/span><\/strong>\u306f\u3001<strong><span style=\"color:#0000ff\" class=\"swl-inline-color\"><span class=\"swl-marker mark_blue\">\u62e1\u5f35\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306e\u3088\u308a\u8a73\u7d30\u306a\u30bf\u30a4\u30d7\u3092\u5b9a\u7fa9\u3059\u308b\u305f\u3081\u306b\u5229\u7528<\/span><\/span><\/strong>\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>Value Field\u306f\u3001\u4e0a\u8a18\u306eType Field\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u305f\u3081\u3001\u3053\u306e\u5f8c\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u307e\u3068\u3081\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<center><!-- START MoshimoAffiliateEasyLink -->\n<script type=\"text\/javascript\">\n(function(b,c,f,g,a,d,e){b.MoshimoAffiliateObject=a;\nb[a]=b[a]||function(){arguments.currentScript=c.currentScript\n||c.scripts[c.scripts.length-2];(b[a].q=b[a].q||[]).push(arguments)};\nc.getElementById(a)||(d=c.createElement(f),d.src=g,\nd.id=a,e=c.getElementsByTagName(\"body\")[0],e.appendChild(d))})\n(window,document,\"script\",\"\/\/dn.msmstatic.com\/site\/cardlink\/bundle.js?20220329\",\"msmaflink\");\nmsmaflink({\"n\":\"BGP Building Reliable Networks with the Border Gateway Protocol\u3010\u96fb\u5b50\u66f8\u7c4d\u3011[ Iljitsch van Beijnum 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class=\"wp-block-heading\">BGP\u62e1\u5f35\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306e\u30bf\u30a4\u30d7\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u5b9a\u7fa9<\/h3>\n\n\n\n<p>\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001<strong><span style=\"color:#008000\" class=\"swl-inline-color\"><span class=\"swl-marker mark_green\">\u62e1\u5f35\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u3067\u5229\u7528\u3055\u308c\u308bType\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8<\/span><\/span><\/strong>\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4e3b\u306b<strong>AS\u756a\u53f7\u3092\u7528\u3044\u305f\u62e1\u5f35\u30b3\u30df\u30e5\u30cb\u30c6\u30a3<\/strong>\u3068<strong>IP\u30a2\u30c9\u30ec\u30b9\u3092\u7528\u3044\u305f\u62e1\u5f35\u30b3\u30df\u30e5\u30cb\u30c6\u30a3<\/strong>\u306e<strong>2\u7a2e\u985e\u304c\u5b58\u5728<\/strong>\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">AS\u7279\u5b9a\u62e1\u5f35\u30b3\u30df\u30e5\u30cb\u30c6\u30a3<\/h4>\n\n\n\n<p>\u3053\u306e\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306f\u3001<strong><span style=\"color:#0000ff\" class=\"swl-inline-color\"><span class=\"swl-marker mark_blue\">2\u30aa\u30af\u30c6\u30c3\u30c8\u306eType\u30d5\u30a3\u30fc\u30eb\u30c9<\/span><\/span><\/strong>\u3068<strong><span style=\"color:#ff0000\" class=\"swl-inline-color\"><span class=\"swl-marker mark_orange\">6\u30aa\u30af\u30c6\u30c3\u30c8\u306eValue\u30d5\u30a3\u30fc\u30eb\u30c9<\/span><\/span><\/strong>\u3067\u69cb\u6210\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>Type\u30d5\u30a3\u30fc\u30eb\u30c9\u306e<strong><span style=\"color:#0000ff\" class=\"swl-inline-color\"><span class=\"swl-marker mark_blue\">\u524d\u534a1\u30aa\u30af\u30c6\u30c3\u30c8\uff08High-Order Octet\uff09\u306f\u300c0x00 or 0x40\u300d<\/span><\/span><\/strong>\u3067\u3042\u308a\u3001<strong><span style=\"color:#0000ff\" class=\"swl-inline-color\"><span class=\"swl-marker mark_blue\">\u5f8c\u534a1\u30aa\u30af\u30c6\u30c3\u30c8\uff08Lower-Order Octet\uff09\u306f\u300cSub-Type\u300d\u3092\u793a\u3059<\/span><\/span><\/strong>\u305f\u3081\u306b\u5229\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>Value\u30d5\u30a3\u30fc\u30eb\u30c9\u306f<strong><span style=\"color:#008000\" class=\"swl-inline-color\"><span class=\"swl-marker mark_green\">\u300cGlobal Administrator\uff082\u30aa\u30af\u30c6\u30c3\u30c8\uff09\u300d<\/span><\/span><\/strong>\u3068<strong><span style=\"color:#ff7f50\" class=\"swl-inline-color\"><span class=\"swl-marker mark_orange\">\u300cLocal Administrator\uff084\u30aa\u30af\u30c6\u30c3\u30c8\uff09\u300d<\/span><\/span><\/strong>\u306e\uff12\u3064\u304b\u3089\u69cb\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong><span style=\"color:#008000\" class=\"swl-inline-color\"><span class=\"swl-marker mark_green\">\u300cGlobal Administrator\u300d\u306fIANA\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u3066\u3044\u308bAS\u756a\u53f7\u304c\u8a2d\u5b9a<\/span><\/span><\/strong>\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4e00\u65b9\u3001<strong><span style=\"color:#ff7f50\" class=\"swl-inline-color\"><span class=\"swl-marker mark_orange\">\u300cLocal Administrator\u300d\u306f\u4efb\u610f\u306e\u5024\u3092\u8a2d\u5b9a\u3067\u304d\u3001\u8a2d\u5b9a\u3055\u308c\u305f\u5024\u306e\u610f\u5473\u306f\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306e\u30b5\u30d6\u30bf\u30a4\u30d7\u3067\u5b9a\u7fa9<\/span><\/span><\/strong>\u3055\u308c\u308b\u3068\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-group has-border -border04\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"221\" src=\"http:\/\/daimaru-tech-blog.com\/wp-content\/uploads\/2024\/06\/AS_NUMBER_EXTENDED_COMMUNITY-1024x221.png\" alt=\"\" class=\"wp-image-2775\" style=\"width:676px;height:auto\" srcset=\"https:\/\/daimaru-tech-blog.com\/wp-content\/uploads\/2024\/06\/AS_NUMBER_EXTENDED_COMMUNITY-1024x221.png 1024w, https:\/\/daimaru-tech-blog.com\/wp-content\/uploads\/2024\/06\/AS_NUMBER_EXTENDED_COMMUNITY-300x65.png 300w, https:\/\/daimaru-tech-blog.com\/wp-content\/uploads\/2024\/06\/AS_NUMBER_EXTENDED_COMMUNITY-768x166.png 768w, https:\/\/daimaru-tech-blog.com\/wp-content\/uploads\/2024\/06\/AS_NUMBER_EXTENDED_COMMUNITY.png 1464w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">RFC4360\u3088\u308a\u629c\u7c8b<\/figcaption><\/figure>\n<\/div><\/div><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">IPv4\u7279\u5b9a\u30b3\u30df\u30e5\u30cb\u30c6\u30a3<\/h4>\n\n\n\n<p>\u3053\u306e\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u3082\u540c\u69d8\u306b<strong>Type\u30d5\u30a3\u30fc\u30eb\u30c9\u304c2\u30aa\u30af\u30c6\u30c3\u30c8<\/strong>\u3001<strong>Value\u30d5\u30a3\u30fc\u30eb\u30c9\u304c6\u30aa\u30af\u30c6\u30c3\u30c8<\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u3061\u3089\u306eType\u30d5\u30a3\u30fc\u30eb\u30c9\u306e<strong><span style=\"color:#0000ff\" class=\"swl-inline-color\"><span class=\"swl-marker mark_blue\">\u524d\u534a1\u30aa\u30af\u30c6\u30c3\u30c8\uff08High-Order Octet\uff09\u306f\u300c0x01 or 0x41\u300d<\/span><\/span><\/strong>\u3067\u3042\u308a\u3001<strong><span style=\"color:#ff0000\" class=\"swl-inline-color\"><span class=\"swl-marker mark_orange\">\u5f8c\u534a1\u30aa\u30af\u30c6\u30c3\u30c8\uff08Low-Order Octet\uff09\u306f\u300cSub Type\u300d<\/span><\/span><\/strong>\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>Value\u30d5\u30a3\u30fc\u30eb\u30c9\u3082\u540c\u69d8\u306b\u3001<span style=\"\" class=\"swl-inline-color\"><span style=\"\" class=\"swl-marker mark_green\"><b style=\"color: rgb(0, 128, 0);\">\u300cGlobal Administrator\uff084\u30aa\u30af\u30c6\u30c3\u30c8\uff09\u300d<\/b><\/span><\/span>\u3068<strong><span style=\"color:#ff7f50\" class=\"swl-inline-color\"><span class=\"swl-marker mark_orange\">\u300cLocal Administrator\uff082\u30aa\u30af\u30c6\u30c3\u30c8\uff09\u300d<\/span><\/span><\/strong>\u304b\u3089\u69cb\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong><span style=\"color:#008000\" class=\"swl-inline-color\"><span class=\"swl-marker mark_green\">\u300cGlobal Administrator\u300d\u306f\u3001Internet Registries\uff08IR\uff09\u306b\u767b\u9332\u3055\u308c\u305fIPv4 Unicast\u3092\u8a2d\u5b9a<\/span><\/span><\/strong>\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001<strong><span style=\"color:#ff7f50\" class=\"swl-inline-color\"><span class=\"swl-marker mark_orange\">\u300cLocal Administrator\u300d\u306f\u3001\u81ea\u7531\u306b\u8a2d\u5b9a\u304c\u3067\u304d\u3001\u610f\u5473\u306f\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u5024\u3067\u5b9a\u7fa9<\/span><\/span><\/strong>\u3055\u308c\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-group has-border -border04\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"206\" src=\"http:\/\/daimaru-tech-blog.com\/wp-content\/uploads\/2024\/06\/IPV4_EXTEND_COMMUNITY-1024x206.png\" alt=\"\" class=\"wp-image-2778\" style=\"width:815px;height:auto\" srcset=\"https:\/\/daimaru-tech-blog.com\/wp-content\/uploads\/2024\/06\/IPV4_EXTEND_COMMUNITY-1024x206.png 1024w, https:\/\/daimaru-tech-blog.com\/wp-content\/uploads\/2024\/06\/IPV4_EXTEND_COMMUNITY-300x60.png 300w, https:\/\/daimaru-tech-blog.com\/wp-content\/uploads\/2024\/06\/IPV4_EXTEND_COMMUNITY-768x155.png 768w, https:\/\/daimaru-tech-blog.com\/wp-content\/uploads\/2024\/06\/IPV4_EXTEND_COMMUNITY.png 1510w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">RFC4360\u3088\u308a\u629c\u7c8b<\/figcaption><\/figure>\n<\/div><\/div><\/div>\n\n\n\n<center><a href=\"https:\/\/px.a8.net\/svt\/ejp?a8mat=3Z2HG9+66O50Y+5BJK+609HT\" rel=\"nofollow\">\n<img decoding=\"async\" border=\"0\" width=\"250\" height=\"250\" alt=\"\" src=\"https:\/\/www27.a8.net\/svt\/bgt?aid=240301017374&#038;wid=001&#038;eno=01&#038;mid=s00000024824001009000&#038;mc=1\"><\/a>\n<img decoding=\"async\" border=\"0\" width=\"1\" height=\"1\" src=\"https:\/\/www18.a8.net\/0.gif?a8mat=3Z2HG9+66O50Y+5BJK+609HT\" alt=\"\"><\/center>\n\n\n\n<div class=\"swell-block-button green_ is-style-btn_shiny\" data-id=\"6f5ec485\"><a href=\"https:\/\/px.a8.net\/svt\/ejp?a8mat=3Z2HG9+66O50Y+5BJK+609HT\" target=\"_blank\" rel=\"noopener noreferrer\" class=\"swell-block-button__link\"><span>\u8ee2\u8077\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u30ca\u30d3\u3092\u898b\u308b<\/span><\/a><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Opaque\u62e1\u5f35\u30b3\u30df\u30e5\u30cb\u30c6\u30a3<\/h3>\n\n\n\n<p>\u3053\u306e\u62e1\u5f35\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306f\u3001\u5148\u7a0b\u306e\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u3068\u540c\u69d8\u306b<strong>Type\u30d5\u30a3\u30fc\u30eb\u30c9\u304c2\u30aa\u30af\u30c6\u30c3\u30c8\u3001Value\u30d5\u30a3\u30fc\u30eb\u30c9\u304c6\u30aa\u30af\u30c6\u30c3\u30c8\u3067\u69cb\u6210<\/strong>\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"blue\"><div class=\"c-balloon__icon -circle\"><img decoding=\"async\" loading=\"lazy\" src=\"http:\/\/daimaru-tech-blog.com\/wp-content\/uploads\/2022\/12\/cropped-\u3060\u3044\u307e\u308b.webp\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><\/div><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p><strong><span style=\"color:#ff0000\" class=\"swl-inline-color\">\u4eca\u56de\u52c9\u5f37\u3057\u305f\u304b\u3063\u305f\u306e\u306f\u3053\u308c\u306a\u3093\u3060\u3051\u3069\u3001\u60c5\u5831\u304c\u3042\u307e\u308a\u306a\u304b\u3063\u305f\u30fb\u30fb\u30fb<\/span><\/strong><\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<p>Type\u30d5\u30a3\u30fc\u30eb\u30c9\u306e<strong><span style=\"color:#0000ff\" class=\"swl-inline-color\"><span class=\"swl-marker mark_blue\">\u524d\u534a1\u30aa\u30af\u30c6\u30c3\u30c8\uff08High-Order Octet\uff09\u306f\u300c0x03 or 0x43\u300d<\/span><\/span><\/strong>\u3067\u3042\u308a\u3001<strong><span style=\"color:#ff0000\" class=\"swl-inline-color\"><span class=\"swl-marker mark_orange\">\u5f8c\u534a1\u30aa\u30af\u30c6\u30c3\u30c8\uff08Low-Order Octet\uff09\u306f\u300cSub-Type\u300d<\/span><\/span><\/strong>\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong><span style=\"color:#008000\" class=\"swl-inline-color\"><span class=\"swl-marker mark_green\">Value\u30d5\u30a3\u30fc\u30eb\u30c9\u306fIANA\u306b\u5b9a\u7fa9\u3055\u308c\u305f\u5024\u304c\u8a2d\u5b9a<\/span><\/span><\/strong>\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-group has-border -border04\"><div class=\"wp-block-group__inner-container is-layout-constrained wp-block-group-is-layout-constrained\"><div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"239\" src=\"http:\/\/daimaru-tech-blog.com\/wp-content\/uploads\/2024\/06\/OPAQUE_EXTENDED_COMMUNITY-1024x239.png\" alt=\"\" class=\"wp-image-2779\" srcset=\"https:\/\/daimaru-tech-blog.com\/wp-content\/uploads\/2024\/06\/OPAQUE_EXTENDED_COMMUNITY-1024x239.png 1024w, https:\/\/daimaru-tech-blog.com\/wp-content\/uploads\/2024\/06\/OPAQUE_EXTENDED_COMMUNITY-300x70.png 300w, https:\/\/daimaru-tech-blog.com\/wp-content\/uploads\/2024\/06\/OPAQUE_EXTENDED_COMMUNITY-768x179.png 768w, https:\/\/daimaru-tech-blog.com\/wp-content\/uploads\/2024\/06\/OPAQUE_EXTENDED_COMMUNITY.png 1450w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div><\/div><\/div>\n\n\n\n<center><a href=\"https:\/\/h.accesstrade.net\/sp\/cc?rk=0100p6qo00nrrf\" rel=\"nofollow\" referrerpolicy=\"no-referrer-when-downgrade\"><img decoding=\"async\" src=\"https:\/\/h.accesstrade.net\/sp\/rr?rk=0100p6qo00nrrf\" alt=\"220822_abema_VAUNDY\" border=\"0\" \/><\/a><\/center>\n\n\n\n<div class=\"swell-block-button red_ is-style-btn_solid\" data-id=\"e002fbde\"><a href=\"https:\/\/h.accesstrade.net\/sp\/cc?rk=0100p6qo00nrrf\" target=\"_blank\" rel=\"noopener noreferrer\" class=\"swell-block-button__link\"><span>ABEMA\u898b\u308b\u306a\u3089\u30af\u30ea\u30c3\u30af<\/span><\/a><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Route Target\uff08RT\uff09\u30fbRoute Origin\u30b3\u30df\u30e5\u30cb\u30c6\u30a3<\/h3>\n\n\n\n<p>\u3053\u306e\uff12\u3064\u306e\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306f\u3001\u9055\u3046RFC\u3067\u3042\u308b\u300cRFC4364\u300d\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u306e\u305f\u3081\u3001\u7406\u89e3\u3092\u6df1\u3081\u3066\u3044\u304f\u4e0a\u3067\u307e\u3068\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u3042\u308c\u3070\u3001\u66f4\u65b0\u3057\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<center><a href=\"https:\/\/h.accesstrade.net\/sp\/cc?rk=0100pjlb00nrrf\" rel=\"nofollow\" referrerpolicy=\"no-referrer-when-downgrade\"><img decoding=\"async\" src=\"https:\/\/h.accesstrade.net\/sp\/rr?rk=0100pjlb00nrrf\" alt=\"20\u4ee3\u7406\u7cfb\u5c31\u8077\u30fb\u8ee2\u8077\u3010UZUZ\u3011\" border=\"0\" \/><\/a><\/center>\n\n\n\n<div class=\"swell-block-button green_ is-style-btn_solid\" data-id=\"0d2e423d\"><a href=\"https:\/\/h.accesstrade.net\/sp\/cc?rk=0100pjlb00nrrf\" target=\"_blank\" rel=\"noopener noreferrer\" class=\"swell-block-button__link\"><span>\u7406\u7cfb\u51fa\u8eab\u8005\u306e\u8ee2\u8077\u30b5\u30a4\u30c8\u300cUZUZ\u300d<\/span><\/a><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u6700\u5f8c\u306b<\/h2>\n\n\n\n<p>\u4eca\u56de\u306f\u3001RFC4360\u306e\u5185\u5bb9\u306e\u4e00\u90e8\u3092\u3056\u3063\u304f\u308a\u307e\u3068\u3081\u3066\u307f\u307e\u3057\u305f\uff082024\/05\/31\u6642\u70b9\uff09<\/p>\n\n\n\n<p>\u3053\u308c\u304b\u3089\u3053\u306e\u90e8\u5206\u306e\u7406\u89e3\u304c\u6df1\u307e\u308c\u3070\u3001\u90fd\u5ea6\u90fd\u5ea6\u66f4\u65b0\u3057\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n<div class=\"p-postListWrap\"><p>\u8a18\u4e8b\u304c\u898b\u3064\u304b\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002<\/p><\/div>","protected":false},"excerpt":{"rendered":"<p>\u306f\u3058\u3081\u306b \u3053\u3093\u306b\u3061\u306f\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u300c\u3060\u3044\u307e\u308b\u300d\u3067\u3059\u3002 \u4eca\u56de\u306f\u3001\u6700\u8fd1\u8aad\u3093\u3060RFC4360\uff08BGP \u62e1\u5f35\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\uff09\u306b\u3064\u3044\u3066\u3001\u307e\u3068\u3081\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002 \u3053\u306eRFC\u3092\u8aad\u3093\u3060\u3060\u3051\u3067\u306f\u7406\u89e3\u3067\u304d\u306a\u3044\u90e8\u5206\u304c\u591a\u304b\u3063\u305f\u306e [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2782,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"{\"6f5ec485\":{\"pv\":297,\"imp\":184},\"e002fbde\":{\"pv\":297,\"imp\":175},\"0d2e423d\":{\"pv\":297,\"imp\":110}}","footnotes":""},"categories":[616,607],"tags":[125,66,403,406,68,407,404,39,126,405],"class_list":["post-2772","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bgp","category-607","tag-attribute","tag-ccnp","tag-community","tag-extended-community","tag-network","tag-rfc4360","tag-404","tag-39","tag-126","tag-405"],"_links":{"self":[{"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=\/wp\/v2\/posts\/2772","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2772"}],"version-history":[{"count":3,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=\/wp\/v2\/posts\/2772\/revisions"}],"predecessor-version":[{"id":2783,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=\/wp\/v2\/posts\/2772\/revisions\/2783"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=\/wp\/v2\/media\/2782"}],"wp:attachment":[{"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2772"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2772"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2772"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}