{"id":1437,"date":"2023-12-15T00:22:49","date_gmt":"2023-12-14T15:22:49","guid":{"rendered":"http:\/\/daimaru-tech-blog.com\/?p=1437"},"modified":"2025-07-05T12:15:23","modified_gmt":"2025-07-05T03:15:23","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%91gre%ef%bc%88generic-routing-encapsulation%ef%bc%89%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6","status":"publish","type":"post","link":"https:\/\/daimaru-tech-blog.com\/?p=1437","title":{"rendered":"\u3010\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5165\u9580\u3011GRE\uff08Generic Routing Encapsulation\uff09\u306b\u3064\u3044\u3066"},"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-fz u-fz-l\"><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><\/span><\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u306f\u3001<strong><span class=\"swl-fz u-fz-l\"><span style=\"color:#0000ff\" class=\"swl-inline-color\"><span class=\"swl-marker mark_blue\">GRE\uff08Generic Routing Encapsulation\uff09\u306b\u3064\u3044\u3066\u5fa9\u7fd2\u304b\u3064\u5b9f\u6a5f\u78ba\u8a8d\u3057\u3066\u307f\u305f\u306e\u3067\u307e\u3068\u3081\u3066\u3044\u304d\u305f\u3044<\/span><\/span><\/span><\/strong>\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\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\">GRE\u3068\u306f<\/h2>\n\n\n\n<p><strong><span class=\"swl-fz u-fz-l\"><span style=\"color:#0000ff\" class=\"swl-inline-color\"><span class=\"swl-marker mark_blue\">GRE\uff08Generic Routing Encapsulation\uff09<\/span><\/span><\/span><\/strong>\u3068\u306f<strong><span class=\"swl-fz u-fz-l\"><span style=\"color:#0000ff\" class=\"swl-inline-color\"><span class=\"swl-marker mark_blue\">\u30c8\u30f3\u30cd\u30eb\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\uff11\u3064<\/span><\/span><\/span><\/strong>\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30c8\u30f3\u30cd\u30eb\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u306f\u3001L2\u306eL2F\u3084PPTP\u3001L2TP\u306a\u3069\u304c\u3042\u308a\u3001L3\u3067\u306fGRE\u3001IPsec\u7b49\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>GRE\u306f\u3001<strong><span class=\"swl-fz u-fz-l\"><span class=\"swl-marker mark_orange\"><span style=\"color:#ff0000\" class=\"swl-inline-color\">\u6697\u53f7\u5316\u6a5f\u80fd\u3092\u5099\u3048\u3066\u3044\u306a\u3044\u305f\u3081\u3001\u30c7\u30fc\u30bf\u305d\u306e\u3082\u306e\u306e\u5b89\u5168\u6027\u306f\u62c5\u4fdd\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002<\/span><\/span><\/span><\/strong><\/p>\n\n\n\n<p>\u3057\u304b\u3057\u3001<strong><span class=\"swl-fz u-fz-l\"><span style=\"color:#0000ff\" class=\"swl-inline-color\"><span class=\"swl-marker mark_blue\">\u305d\u306e\u6027\u8cea\u3092\u4f7f\u3063\u305f\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u5fc5\u8981\u306a\u5834\u5408\u3084\u69d8\u3005\u306a\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30c8\u30b3\u30eb\u3084\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u3092\u5229\u7528\u3057\u305f\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u5229\u7528\u53ef\u80fd\u306a\u305f\u3081\u3001\u4f7f\u308f\u308c\u3066\u3044\u308b\u30d7\u30ed\u30c8\u30b3\u30eb<\/span><\/span><\/span><\/strong>\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>GRE\u306e\u30d8\u30c3\u30c0\u306f\u3001<strong><span class=\"swl-fz u-fz-l\"><span style=\"color:#0000ff\" class=\"swl-inline-color\"><span class=\"swl-marker mark_blue\">\u57fa\u672c\u7684\u306aIP\u30d8\u30c3\u30c0\u306b\u5bfe\u3057\u3066GRE\u306b\u95a2\u3059\u308b\u30d8\u30c3\u30c0\u3092\u8ffd\u52a0<\/span><\/span><\/span><\/strong>\u3057\u3066\u3044\u308b\u3082\u306e\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<center><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" version=\"1.1\" width=\"842px\" viewBox=\"-0.5 -0.5 842 82\" content=\"&lt;mxfile host=&quot;Electron&quot; modified=&quot;2023-11-16T02:42:00.303Z&quot; agent=&quot;Mozilla\/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit\/537.36 (KHTML, like Gecko) draw.io\/21.6.5 Chrome\/114.0.5735.243 Electron\/25.3.1 Safari\/537.36&quot; etag=&quot;BY6GZwFB60pOt7Po9fqM&quot; version=&quot;21.6.5&quot; type=&quot;device&quot;&gt;&#10;  &lt;diagram name=&quot;Page-1&quot; id=&quot;DDIv5Q0vaAOWfUyLfEZQ&quot;&gt;&#10;    &lt;mxGraphModel dx=&quot;954&quot; dy=&quot;674&quot; grid=&quot;1&quot; gridSize=&quot;10&quot; guides=&quot;1&quot; tooltips=&quot;1&quot; connect=&quot;1&quot; arrows=&quot;1&quot; fold=&quot;1&quot; page=&quot;1&quot; pageScale=&quot;1&quot; pageWidth=&quot;1654&quot; pageHeight=&quot;1169&quot; math=&quot;0&quot; shadow=&quot;0&quot;&gt;&#10;      &lt;root&gt;&#10;        &lt;mxCell id=&quot;0&quot; \/&gt;&#10;        &lt;mxCell id=&quot;1&quot; parent=&quot;0&quot; \/&gt;&#10;        &lt;mxCell id=&quot;ZD1sTLYar_qAmBnJSmI2-1&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;80&quot; y=&quot;240&quot; width=&quot;840&quot; height=&quot;80&quot; as=&quot;geometry&quot; \/&gt;&#10;        &lt;\/mxCell&gt;&#10;        &lt;mxCell id=&quot;ZD1sTLYar_qAmBnJSmI2-2&quot; value=&quot;&amp;lt;font color=&amp;quot;#ffffff&amp;quot; style=&amp;quot;font-size: 28px;&amp;quot;&amp;gt;PayLoad&amp;lt;\/font&amp;gt;&quot; style=&quot;rounded=0;whiteSpace=wrap;html=1;strokeWidth=2;fillColor=#009900;strokeColor=#000000;&quot; vertex=&quot;1&quot; parent=&quot;1&quot;&gt;&#10;          &lt;mxGeometry x=&quot;600&quot; y=&quot;240&quot; width=&quot;320&quot; height=&quot;80&quot; as=&quot;geometry&quot; \/&gt;&#10;        &lt;\/mxCell&gt;&#10;        &lt;mxCell id=&quot;ZD1sTLYar_qAmBnJSmI2-3&quot; value=&quot;&amp;lt;font color=&amp;quot;#ffffff&amp;quot; style=&amp;quot;font-size: 28px;&amp;quot;&amp;gt;Original IP&amp;lt;\/font&amp;gt;&quot; style=&quot;rounded=0;whiteSpace=wrap;html=1;strokeWidth=2;fillColor=#FF8000;strokeColor=#000000;&quot; vertex=&quot;1&quot; parent=&quot;1&quot;&gt;&#10;          &lt;mxGeometry x=&quot;400&quot; y=&quot;240&quot; width=&quot;200&quot; height=&quot;80&quot; as=&quot;geometry&quot; \/&gt;&#10;        &lt;\/mxCell&gt;&#10;        &lt;mxCell id=&quot;ZD1sTLYar_qAmBnJSmI2-4&quot; value=&quot;&amp;lt;font color=&amp;quot;#ffffff&amp;quot; style=&amp;quot;font-size: 28px;&amp;quot;&amp;gt;GRE Flags&amp;lt;\/font&amp;gt;&quot; style=&quot;rounded=0;whiteSpace=wrap;html=1;strokeWidth=2;fillColor=#FF0000;strokeColor=#000000;&quot; vertex=&quot;1&quot; parent=&quot;1&quot;&gt;&#10;          &lt;mxGeometry x=&quot;230&quot; y=&quot;240&quot; width=&quot;170&quot; height=&quot;80&quot; as=&quot;geometry&quot; \/&gt;&#10;        &lt;\/mxCell&gt;&#10;        &lt;mxCell id=&quot;ZD1sTLYar_qAmBnJSmI2-5&quot; value=&quot;&amp;lt;font color=&amp;quot;#ffffff&amp;quot; style=&amp;quot;font-size: 28px;&amp;quot;&amp;gt;GRE IP&amp;lt;\/font&amp;gt;&quot; style=&quot;rounded=0;whiteSpace=wrap;html=1;strokeWidth=2;fillColor=#3333FF;strokeColor=#000000;&quot; vertex=&quot;1&quot; parent=&quot;1&quot;&gt;&#10;          &lt;mxGeometry x=&quot;80&quot; y=&quot;240&quot; width=&quot;150&quot; height=&quot;80&quot; as=&quot;geometry&quot; \/&gt;&#10;        &lt;\/mxCell&gt;&#10;      &lt;\/root&gt;&#10;    &lt;\/mxGraphModel&gt;&#10;  &lt;\/diagram&gt;&#10;&lt;\/mxfile&gt;&#10;\" onclick=\"(function(svg){var src=window.event.target||window.event.srcElement;while (src!=null&amp;&amp;src.nodeName.toLowerCase()!='a'){src=src.parentNode;}if(src==null){if(svg.wnd!=null&amp;&amp;!svg.wnd.closed){svg.wnd.focus();}else{var r=function(evt){if(evt.data=='ready'&amp;&amp;evt.source==svg.wnd){svg.wnd.postMessage(decodeURIComponent(svg.getAttribute('content')),'*');window.removeEventListener('message',r);}};window.addEventListener('message',r);svg.wnd=window.open('https:\/\/viewer.diagrams.net\/?client=1&amp;page=0');}}})(this);\" style=\"cursor:pointer;max-width:100%;max-height:82px;\"><defs\/><g><rect x=\"1\" y=\"1\" width=\"840\" height=\"80\" fill=\"rgb(255, 255, 255)\" stroke=\"rgb(0, 0, 0)\" stroke-width=\"2\" pointer-events=\"all\"\/><rect x=\"521\" y=\"1\" width=\"320\" height=\"80\" fill=\"#009900\" stroke=\"#000000\" 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: 318px; height: 1px; padding-top: 41px; margin-left: 522px;\"><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: 28px;\" color=\"#ffffff\">PayLoad<\/font><\/div><\/div><\/div><\/foreignObject><text x=\"681\" y=\"45\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"12px\" text-anchor=\"middle\">PayLoad<\/text><\/switch><\/g><rect x=\"321\" y=\"1\" width=\"200\" height=\"80\" fill=\"#ff8000\" stroke=\"#000000\" 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: 198px; height: 1px; padding-top: 41px; margin-left: 322px;\"><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: 28px;\" color=\"#ffffff\">Original IP<\/font><\/div><\/div><\/div><\/foreignObject><text x=\"421\" y=\"45\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"12px\" text-anchor=\"middle\">Original IP<\/text><\/switch><\/g><rect x=\"151\" y=\"1\" width=\"170\" height=\"80\" fill=\"#ff0000\" stroke=\"#000000\" 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: 168px; height: 1px; padding-top: 41px; margin-left: 152px;\"><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: 28px;\" color=\"#ffffff\">GRE Flags<\/font><\/div><\/div><\/div><\/foreignObject><text x=\"236\" y=\"45\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"12px\" text-anchor=\"middle\">GRE Flags<\/text><\/switch><\/g><rect x=\"1\" y=\"1\" width=\"150\" height=\"80\" fill=\"#3333ff\" stroke=\"#000000\" 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: 148px; height: 1px; padding-top: 41px; margin-left: 2px;\"><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: 28px;\" color=\"#ffffff\">GRE IP<\/font><\/div><\/div><\/div><\/foreignObject><text x=\"76\" y=\"45\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"12px\" text-anchor=\"middle\">GRE IP<\/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\n\n\n<center><a href=\"https:\/\/px.a8.net\/svt\/ejp?a8mat=3THM1R+BYGF5E+50+4Z49CH\" rel=\"nofollow\">\n<img decoding=\"async\" border=\"0\" width=\"728\" height=\"90\" alt=\"\" src=\"https:\/\/www22.a8.net\/svt\/bgt?aid=230929119723&#038;wid=001&#038;eno=01&#038;mid=s00000000018030085000&#038;mc=1\"><\/a>\n<img decoding=\"async\" border=\"0\" width=\"1\" height=\"1\" src=\"https:\/\/www16.a8.net\/0.gif?a8mat=3THM1R+BYGF5E+50+4Z49CH\" alt=\"\"><\/center>\n\n\n\n<h2 class=\"wp-block-heading\">GRE\u306e\u8a2d\u5b9a\u65b9\u6cd5<\/h2>\n\n\n\n<p>IOS\u306eGRE\u8a2d\u5b9a\u65b9\u6cd5\u306e\u4e00\u822c\u7684\u306a\u6d41\u308c\u306f\u3001\u4e3b\u306b\uff14\u30b9\u30c6\u30c3\u30d7\u3042\u308a\u307e\u3059\u3002\uff08\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u542b\u3081\u308b\u3068\uff17\u30b9\u30c6\u30c3\u30d7\uff09<\/p>\n\n\n\n<div class=\"swell-block-step\" data-num-style=\"circle\">\n<div class=\"swell-block-step__item\"><div class=\"swell-block-step__number u-bg-main\"><span class=\"__label\">STEP<\/span><\/div><div class=\"swell-block-step__title u-fz-l\">\u30c8\u30f3\u30cd\u30ebIF\u306e\u4f5c\u6210<\/div><div class=\"swell-block-step__body\">\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>(config)# interface tunnel &lt;\u30c8\u30f3\u30cd\u30eb\u756a\u53f7&gt;<\/code><\/pre>\n<\/div><\/div>\n\n\n\n<div class=\"swell-block-step__item\"><div class=\"swell-block-step__number u-bg-main\"><span class=\"__label\">STEP<\/span><\/div><div class=\"swell-block-step__title u-fz-l\">Source\u306e\u6307\u5b9a<\/div><div class=\"swell-block-step__body\">\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>(config-if)# tunnel source &lt;IP\u30a2\u30c9\u30ec\u30b9|IF\u540d&gt;<\/code><\/pre>\n\n\n\n<p>\u3053\u306e\u8a2d\u5b9a\u306f<strong><span class=\"swl-fz u-fz-l\"><span style=\"color:#008000\" class=\"swl-inline-color\"><span class=\"swl-marker mark_green\">GRE\u3067Encapsulation\u3084Decapsulation\u3092\u5b9f\u65bd\u3057\u305f\u3044IF\uff08\u7269\u7406IF\u3084Loopback\uff09\u306eIP\u30a2\u30c9\u30ec\u30b9\u3084IF\u3092\u76f4\u63a5\u6307\u5b9a<\/span><\/span><\/span><\/strong>\u3057\u307e\u3059\u3002<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"swell-block-step__item\"><div class=\"swell-block-step__number u-bg-main\"><span class=\"__label\">STEP<\/span><\/div><div class=\"swell-block-step__title u-fz-l\">Destination\u306e\u6307\u5b9a<\/div><div class=\"swell-block-step__body\">\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>(config-if)# tunnel destination &lt;IP\u30a2\u30c9\u30ec\u30b9&gt;<\/code><\/pre>\n\n\n\n<p>\u3053\u3053\u3067\u306f<span class=\"swl-fz u-fz-l\"><strong><span style=\"color:#ff8c00\" class=\"swl-inline-color\">Source\u306e\u6307\u5b9a\u540c\u69d8\u306bEncap\/Decap\u3057\u305f\u3044IF\u306b\u95a2\u3057\u3066\u8a2d\u5b9a\u3059\u308b\u306e\u3067\u3059\u304c\u3001IP\u30a2\u30c9\u30ec\u30b9\u306e\u8a2d\u5b9a\u306e\u307f\u53ef\u80fd<\/span><\/strong><\/span>\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"swell-block-step__item\"><div class=\"swell-block-step__number u-bg-main\"><span class=\"__label\">STEP<\/span><\/div><div class=\"swell-block-step__title u-fz-l\">IP\u30a2\u30c9\u30ec\u30b9\u30a2\u30b5\u30a4\u30f3<\/div><div class=\"swell-block-step__body\">\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>(config-if)# ip address &lt;\u30a2\u30c9\u30ec\u30b9&gt; &lt;\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af&gt;<\/code><\/pre>\n\n\n\n<p>\u3053\u306e\u8a2d\u5b9a\u306f\u3001\u30c8\u30f3\u30cd\u30ebIF\u3067\u5b9f\u969b\u306b\u5229\u7528\u3059\u308b\u30a2\u30c9\u30ec\u30b9\u3092\u30a2\u30b5\u30a4\u30f3\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u901a\u5e38\u306eIF\u306b\u30a2\u30c9\u30ec\u30b9\u3092\u30a2\u30b5\u30a4\u30f3\u3059\u308b\u306e\u3068\u540c\u3058\u3067\u3059\u3002<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"swell-block-step__item\"><div class=\"swell-block-step__number u-bg-main\"><span class=\"__label\">STEP<\/span><\/div><div class=\"swell-block-step__title u-fz-l\">\u5e2f\u57df\u306e\u5b9a\u7fa9<\/div><div class=\"swell-block-step__body\">\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>(config-if)# bandwidth &lt;\u901a\u4fe1\u5e2f\u57df&gt;<\/code><\/pre>\n<\/div><\/div>\n\n\n\n<div class=\"swell-block-step__item\"><div class=\"swell-block-step__number u-bg-main\"><span class=\"__label\">STEP<\/span><\/div><div class=\"swell-block-step__title u-fz-l\">KEEPALIVE\u306e\u5b9a\u7fa9<\/div><div class=\"swell-block-step__body\">\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>(config-if)# keepalive &lt;\u6642\u9593(sec)&gt;<\/code><\/pre>\n<\/div><\/div>\n\n\n\n<div class=\"swell-block-step__item\"><div class=\"swell-block-step__number u-bg-main\"><span class=\"__label\">STEP<\/span><\/div><div class=\"swell-block-step__title u-fz-l\">MTU\u306e\u5b9a\u7fa9<\/div><div class=\"swell-block-step__body\">\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>(config-if) ip mtu &lt;mtu\u5024&gt;<\/code><\/pre>\n<\/div><\/div>\n<\/div>\n\n\n\n<p><strong><span class=\"swl-fz u-fz-l\"><span class=\"swl-marker mark_blue\"><span style=\"color:#0000ff\" class=\"swl-inline-color\">\u4e0a\u8a18\u306e\u8a2d\u5b9a\u3092\u5404\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u3068\u306a\u308b\u30eb\u30fc\u30bf\u3067\u5b9f\u65bd\u3059\u308b\u3053\u3068\u3067GRE\u30c8\u30f3\u30cd\u30eb\u3092\u5f35\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/span><\/span><\/span><\/strong><\/p>\n\n\n\n<p>\u500b\u4eba\u7684\u306bMTU\u3092\u9664\u3044\u3066\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u8a2d\u5b9a\u3092\u3057\u3066\u3044\u308b\u30eb\u30fc\u30bf\u3092\u3042\u307e\u308a\u307f\u305f\u3053\u3068\u304c\u306a\u3044\u306e\u3067\u3001\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u30eb\u30fc\u30bf\u3084\u305d\u306e\u7d4c\u7def\u3092\u77e5\u3063\u3066\u307f\u305f\u3044\u306a\u3068\u601d\u3044\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<p>\u3067\u306f\u3001\u5b9f\u969b\u306b\u5b9f\u6a5f\u3067\u78ba\u8a8d\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<center><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-2776062481390161\"\n     crossorigin=\"anonymous\"><\/script>\n<!-- \u30ec\u30b9\u30dd\u30f3\u30b7\u30d6 -->\n<ins class=\"adsbygoogle\"\n     style=\"display:block\"\n     data-ad-client=\"ca-pub-2776062481390161\"\n     data-ad-slot=\"2830301217\"\n     data-ad-format=\"auto\"\n     data-full-width-responsive=\"true\"><\/ins>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><\/center>\n\n\n\n<h2 class=\"wp-block-heading\">CML\u306b\u3088\u308b\u5b9f\u6a5f\u78ba\u8a8d<\/h2>\n\n\n\n<p>\u4eca\u56de\u3001GRE\u3092\u69cb\u7bc9\u3057\u305f\u69cb\u6210\u306f\u3001\u4ee5\u4e0b\u306e\u901a\u308a\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<center><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" version=\"1.1\" width=\"1245px\" viewBox=\"-0.5 -0.5 1245 192\" content=\"&lt;mxfile host=&quot;Electron&quot; 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text-align: left;\"><div xmlns=\"http:\/\/www.w3.org\/1999\/xhtml\" style=\"display: flex; align-items: unsafe center; justify-content: unsafe center; width: 38px; height: 1px; padding-top: 136px; margin-left: 1086px;\"><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: 16px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;\">Gi0\/1<\/div><\/div><\/div><\/foreignObject><text x=\"1105\" y=\"141\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"16px\" text-anchor=\"middle\">Gi0\/1<\/text><\/switch><\/g><rect x=\"895\" y=\"54\" width=\"220\" 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: 218px; height: 1px; padding-top: 69px; margin-left: 896px;\"><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: 16px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;\">100.64.2.0\/30<\/div><\/div><\/div><\/foreignObject><text x=\"1005\" y=\"74\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"16px\" text-anchor=\"middle\">100.64.2.0\/30<\/text><\/switch><\/g><path d=\"M 614 -396 C 614 -404.28 618.03 -411 623 -411 C 625.39 -411 627.68 -409.42 629.36 -406.61 C 631.05 -403.79 632 -399.98 632 -396 L 632 574 C 632 582.28 627.97 589 623 589 C 618.03 589 614 582.28 614 574 Z\" fill-opacity=\"0.7\" fill=\"#ff0000\" stroke=\"#000000\" stroke-opacity=\"0.7\" stroke-width=\"2\" stroke-miterlimit=\"10\" transform=\"rotate(90,623,89)\" pointer-events=\"all\"\/><path d=\"M 632 -396 C 632 -387.72 627.97 -381 623 -381 C 618.03 -381 614 -387.72 614 -396\" fill=\"none\" stroke=\"#000000\" stroke-opacity=\"0.7\" stroke-width=\"2\" stroke-miterlimit=\"10\" transform=\"rotate(90,623,89)\" pointer-events=\"all\"\/><rect x=\"535\" y=\"160\" width=\"220\" height=\"30\" fill=\"none\" stroke=\"#ff0000\" 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: 218px; height: 1px; padding-top: 175px; margin-left: 536px;\"><div data-drawio-colors=\"color: #FF0000; \" style=\"box-sizing: border-box; font-size: 0px; text-align: center;\"><div style=\"display: inline-block; font-size: 16px; font-family: Helvetica; color: rgb(255, 0, 0); line-height: 1.2; pointer-events: all; font-weight: bold; white-space: normal; overflow-wrap: normal;\">GRE\u30c8\u30f3\u30cd\u30eb<\/div><\/div><\/div><\/foreignObject><text x=\"645\" y=\"180\" fill=\"#FF0000\" font-family=\"Helvetica\" font-size=\"16px\" text-anchor=\"middle\" font-weight=\"bold\">GRE\u30c8\u30f3\u30cd\u30eb<\/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\n\n\n<p>\u4eca\u56de\u306fRouter1\u3068Router2\u306e\u9593\u306b\u30c8\u30f3\u30cd\u30ebIF 100\u3092\u4f5c\u6210\u3057\u3001GRE\u30c8\u30f3\u30cd\u30eb\u3092\u69cb\u7bc9\u3059\u308b\u5f62\u3067\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u4e8b\u524d\u78ba\u8a8d\u306f\u7279\u306b\u8a2d\u5b9a\u304c\u5165\u3063\u3066\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u306e\u307f\u306a\u306e\u3067\u5272\u611b\u3068\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>Router1\u306b\u8a2d\u5b9a\u3092\u5165\u308c\u305f\u969b\u306e\u30ed\u30b0\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>\nRouter1#conf t\nEnter configuration commands, one per line.  End with CNTL\/Z.\nRouter1(config)#ip route 0.0.0.0 0.0.0.0 100.64.1.2\n\nRouter1(config)#interface tunnel 100\n\nRouter1(config-if)#ip address 192.168.100.1 255.255.255.0\n\nRouter1(config-if)#tunnel source 100.64.1.1\n\nRouter1(config-if)#tunnel destination 100.64.2.2\nRouter1(config-if)#exit\nRouter1(config)#router ospf 100\nRouter1(config-router)#network\nRouter1(config-router)#network 192.168.100.0 0.0.0.255 area 0\nRouter1(config-router)#network 10.1.1.0 0.0.0.255 area 0\nRouter1(config-router)#end\nRouter1#wr\nBuilding configuration...\n&#91;OK]\n\n\n*Nov 16 00:06:21.689: %SYS-5-CONFIG_I: Configured from console by cisco on vty0 (192.168.11.19)\n*Nov 16 00:06:41.178: %SYS-5-CONFIG_I: Configured from console by cisco on vty0 (192.168.11.19)\n*Nov 16 00:06:42.474: %GRUB-5-CONFIG_WRITING: GRUB configuration is being updated on disk. Please wait...\n*Nov 16 00:06:43.137: %GRUB-5-CONFIG_WRITTEN: GRUB configuration was written to disk successfully.\n*Nov 16 00:09:05.166: %LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel100, changed state to down\n*Nov 16 00:09:58.733: %LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel100, changed state to up\n*Nov 16 00:10:28.357: %SYS-5-CONFIG_I: Configured from console by cisco on vty0 (192.168.11.19)\n*Nov 16 00:10:30.185: %GRUB-5-CONFIG_WRITING: GRUB configuration is being updated on disk. Please wait...\n*Nov 16 00:10:30.850: %GRUB-5-CONFIG_WRITTEN: GRUB configuration was written to disk successfully.<\/code><\/pre>\n\n\n\n<p>\u4e0a\u8a18\u306e\u8a2d\u5b9a\u3092\u5165\u308c\u308b\u3053\u3068\u3067Tunnel 100\u306fUP\u3057\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u305f\u3060\u3001Router2\u5074\u3067\u8a2d\u5b9a\u3092\u307e\u3060\u5165\u308c\u3066\u3044\u306a\u3044\u306e\u3067OSPF\u30cd\u30a4\u30d0\u30fc\u306f\u3042\u304c\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>\u3067\u306f\u3001Router2\u306b\u8a2d\u5b9a\u3092\u8ffd\u52a0\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>Router2#conf t\nEnter configuration commands, one per line.  End with CNTL\/Z.\nRouter2(config)#ip route 0.0.0.0 0.0.0.0 100.64.2.1\n\nRouter2(config)#interface tunnel 100\n\nRouter2(config-if)#ip address 192.168.100.2 255.255.255.0\n\nRouter2(config-if)#tunnel source 100.64.2.2\n\nRouter2(config-if)#tunnel destination 100.64.1.1\nRouter2(config-if)#exit\nRouter2(config)#router ospf 100\nRouter2(config-router)#network 192.168.100.0 0.0.0.255 area 0\nRouter2(config-router)#network 10.2.2.0 0.0.0.255 area 0\n\nRouter2(config-router)#end\n\n*Nov 16 00:06:54.620: %SYS-5-CONFIG_I: Configured from console by cisco on vty0 (192.168.11.19)\n*Nov 16 00:07:02.649: %SYS-5-CONFIG_I: Configured from console by cisco on vty0 (192.168.11.19)\n*Nov 16 00:07:03.916: %GRUB-5-CONFIG_WRITING: GRUB configuration is being updated on disk. Please wait...\n*Nov 16 00:07:04.583: %GRUB-5-CONFIG_WRITTEN: GRUB configuration was written to disk successfully.\n*Nov 16 00:11:17.300: %LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel100, changed state to down\n*Nov 16 00:11:35.879: %LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel100, changed state to up\n*Nov 16 00:11:53.820: %OSPF-5-ADJCHG: Process 100, Nbr 10.1.1.1 on Tunnel100 from LOADING to FULL, Loading Done\n*Nov 16 00:12:05.879: %SYS-5-CONFIG_I: Configured from console by cisco on vty0 (192.168.11.19)\n*Nov 16 00:12:07.035: %GRUB-5-CONFIG_WRITING: GRUB configuration is being updated on disk. Please wait...\n*Nov 16 00:12:07.697: %GRUB-5-CONFIG_WRITTEN: GRUB configuration was written to disk successfully.<\/code><\/pre>\n\n\n\n<p>\u8a2d\u5b9a\u6295\u5165\u5f8c\u3001Syslog\u304b\u3089\u3082OSPF\u30cd\u30a4\u30d0\u30fc\u304c\u78ba\u7acb\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u4e8b\u5f8c\u78ba\u8a8d\u3068\u3057\u3066\u3044\u304f\u3064\u304b\u30ed\u30b0\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>Router1#show ip ospf neighbor\n\nNeighbor ID     Pri   State           Dead Time   Address         Interface\n10.2.2.1          0   FULL\/  -        00:00:37    192.168.100.2   Tunnel100\n\nRouter1#show interfaces tunnel 100\nTunnel100 is up, line protocol is up\n  Hardware is Tunnel\n  Internet address is 192.168.100.1\/24\n  MTU 17916 bytes, BW 100 Kbit\/sec, DLY 50000 usec,\n     reliability 255\/255, txload 1\/255, rxload 1\/255\n  Encapsulation TUNNEL, loopback not set\n  Keepalive not set\n  Tunnel linestate evaluation up\n  Tunnel source 100.64.1.1, destination 100.64.2.2\n  Tunnel protocol\/transport GRE\/IP\n    Key disabled, sequencing disabled\n    Checksumming of packets disabled\n  Tunnel TTL 255, Fast tunneling enabled\n  Tunnel transport MTU 1476 bytes\n  Tunnel transmit bandwidth 8000 (kbps)\n  Tunnel receive bandwidth 8000 (kbps)\n  Last input 00:00:06, output 00:00:03, output hang never\n  Last clearing of \"show interface\" counters 00:04:15\n  Input queue: 0\/75\/0\/0 (size\/max\/drops\/flushes); Total output drops: 0\n  Queueing strategy: fifo\n  Output queue: 0\/0 (size\/max)\n  5 minute input rate 0 bits\/sec, 0 packets\/sec\n  5 minute output rate 0 bits\/sec, 0 packets\/sec\n     17 packets input, 1756 bytes, 0 no buffer\n     Received 0 broadcasts (0 IP multicasts)\n     0 runts, 0 giants, 0 throttles\n     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort\n     28 packets output, 2856 bytes, 0 underruns\n     0 output errors, 0 collisions, 0 interface resets\n     0 unknown protocol drops\n     0 output buffer failures, 0 output buffers swapped out\nRouter1#<\/code><\/pre>\n\n\n\n<p>\u3053\u306e\u30ed\u30b0\u304b\u3089\u3082\u308f\u304b\u308b\u3088\u3046\u306bGRE\u3067\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3067\u306f\u3001GRE\u306e\u30d1\u30b1\u30c3\u30c8\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u753b\u50cf\u3067\u306fGRE\u306eIP\u30d8\u30c3\u30c0\uff08\u5b9b\u5148\u304c100.64.1.1\u30fb\u9001\u4fe1\u5143\u304c100.64.2.2\uff09\u3068GRE Flag\u304c\u8ffd\u52a0\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308b\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" width=\"2726\" height=\"1296\" src=\"http:\/\/daimaru-tech-blog.com\/wp-content\/uploads\/2023\/11\/image.png\" alt=\"\" class=\"wp-image-1442\"\/><figcaption class=\"wp-element-caption\">GRE\u30d1\u30b1\u30c3\u30c8<\/figcaption><\/figure>\n<\/div>\n\n\n<p>\u3053\u308c\u3067GRE\u306e\u52d5\u4f5c\u3084\u8a2d\u5b9a\u65b9\u6cd5\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u305f\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<center><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-2776062481390161\"\n     crossorigin=\"anonymous\"><\/script>\n<!-- \u30ec\u30b9\u30dd\u30f3\u30b7\u30d6 -->\n<ins class=\"adsbygoogle\"\n     style=\"display:block\"\n     data-ad-client=\"ca-pub-2776062481390161\"\n     data-ad-slot=\"2830301217\"\n     data-ad-format=\"auto\"\n     data-full-width-responsive=\"true\"><\/ins>\n<script>\n     (adsbygoogle = window.adsbygoogle || []).push({});\n<\/script><\/center>\n\n\n\n<h2 class=\"wp-block-heading\">\u6700\u5f8c\u306b<\/h2>\n\n\n\n<p>\u3053\u3053\u6700\u8fd1\u306fCCNP\u306e\u52c9\u5f37\u3092\u3057\u3066\u3044\u308b\u95a2\u4fc2\u3082\u3042\u308a\u3001\u57fa\u672c\u7684\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u653b\u3081\u3066\u3044\u308b\u72b6\u6cc1\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>CCNP\u5408\u683c\u5f8c\u3001SR\u95a2\u9023\u306b\u624b\u3092\u51fa\u3057\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>\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","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\u3001GRE\uff08Generic Routing Encapsulation\uff09\u306b\u3064\u3044\u3066\u5fa9\u7fd2\u304b\u3064\u5b9f\u6a5f\u78ba\u8a8d\u3057\u3066\u307f\u305f\u306e\u3067\u307e\u3068\u3081\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002 GRE\u3068\u306f  [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1444,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[607,622],"tags":[41,191,190,64,68,192,39],"class_list":["post-1437","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-607","category--ccna-ccnp","tag-cisco","tag-generic-routing-encapsulation","tag-gre","tag-ios","tag-network","tag-192","tag-39"],"_links":{"self":[{"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=\/wp\/v2\/posts\/1437","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=1437"}],"version-history":[{"count":6,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=\/wp\/v2\/posts\/1437\/revisions"}],"predecessor-version":[{"id":1445,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=\/wp\/v2\/posts\/1437\/revisions\/1445"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=\/wp\/v2\/media\/1444"}],"wp:attachment":[{"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1437"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1437"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1437"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}