{"id":1446,"date":"2023-12-20T18:33:58","date_gmt":"2023-12-20T09:33:58","guid":{"rendered":"http:\/\/daimaru-tech-blog.com\/?p=1446"},"modified":"2025-07-05T12:15:08","modified_gmt":"2025-07-05T03:15:08","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%91nat%ef%bc%88static-dynamic-pat%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=1446","title":{"rendered":"\u3010\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5165\u9580\u3011NAT\uff08Static\/Dynamic\/PAT\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\">\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 class=\"swl-fz u-fz-l\"><span style=\"color:#0000ff\" class=\"swl-inline-color\"><span class=\"swl-marker mark_blue\">CCNP\u306e\u5b66\u7fd2\u306e\u4e00\u74b0\u3068\u3057\u3066NAT\uff08Network Address Translation\uff09\u306b\u3064\u3044\u3066\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<!-- \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\">NAT\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\">NAT\uff08Network Address Translation\uff09<\/span><\/span><\/span><\/strong>\u3068\u306f\u3001<strong><span class=\"swl-fz u-fz-l\"><span style=\"color:#0000ff\" class=\"swl-inline-color\"><span class=\"swl-marker mark_blue\">IP\u30a2\u30c9\u30ec\u30b9\u3092\u5909\u63db\u3059\u308b\u6280\u8853\u3067\u3042\u308a\u3001\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30a2\u30c9\u30ec\u30b9\u3068\u30b0\u30ed\u30fc\u30d0\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u5909\u63db<\/span><\/span><\/span><\/strong>\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u8aac\u660e\u306f\u5272\u611b\u3057\u307e\u3059\u304c\u3001\u500b\u4eba\u3084\u4f01\u696d\u304cLAN\u304b\u3089\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u63a5\u7d9a\u3059\u308b\u969b\u306b\u306f\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30a2\u30c9\u30ec\u30b9\u3068\u30b0\u30ed\u30fc\u30d0\u30eb\u30a2\u30c9\u30ec\u30b9\u3092\u5909\u63db\u3059\u308b\u3053\u3068\u3067\u901a\u4fe1\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>NAT\u306f<strong><span class=\"swl-fz u-fz-l\"><span style=\"color:#008000\" class=\"swl-inline-color\">\u4e00\u822c\u7684\u306b\u5185\u90e8\uff08LAN\uff09\u304b\u3089\u5916\u90e8\uff08\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\uff09\u306b\u901a\u4fe1\u3092\u958b\u59cb\u3059\u308b\u5834\u5408\u306b\u5909\u63db\u30fb\u7d10\u3065\u3051\u3089\u308c\u3001\u901a\u4fe1\u304c\u53ef\u80fd<\/span><\/span><\/strong>\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305f\u3001<strong><span class=\"swl-fz u-fz-l\">Cisco\u3067\u306fNAT\u306e\u7528\u8a9e\u3068\u3057\u3066\u4ee5\u4e0b\u3092\u5b9a\u7fa9<\/span><\/strong>\u3057\u3066\u3044\u308b\u306e\u3067\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002\uff08CCNP\u306e\u6559\u6750\u3092\u5f15\u7528\uff09<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-regular\"><table class=\"has-background\" style=\"background-color:#ffffe0\"><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>No<\/td><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>\u7528\u8a9e<\/td><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>\u5185\u5bb9<\/td><\/tr><tr><td>1<\/td><td>\u5185\u90e8\u30ed\u30fc\u30ab\u30eb\u30a2\u30c9\u30ec\u30b9<\/td><td>\u5185\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30db\u30b9\u30c8\u306eIP\u30a2\u30c9\u30ec\u30b9\uff08\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\uff09<\/td><\/tr><tr><td>2<\/td><td>\u5185\u90e8\u30b0\u30ed\u30fc\u30d0\u30eb\u30a2\u30c9\u30ec\u30b9<\/td><td>\u5916\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089\u898b\u305f\u30db\u30b9\u30c8\u306eIP\u30a2\u30c9\u30ec\u30b9\uff08\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\uff09<\/td><\/tr><tr><td>3<\/td><td>\u5916\u90e8\u30ed\u30fc\u30ab\u30eb\u30a2\u30c9\u30ec\u30b9<\/td><td>\u5185\u90e8\u304b\u3089\u307f\u305f\u5916\u90e8\u306e\u30db\u30b9\u30c8\u306eIP\u30a2\u30c9\u30ec\u30b9\uff08\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\uff09<\/td><\/tr><tr><td>4<\/td><td>\u5916\u90e8\u30b0\u30ed\u30fc\u30d0\u30eb\u30a2\u30c9\u30ec\u30b9<\/td><td>\u5916\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30db\u30b9\u30c8\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u308bIP\u30a2\u30c9\u30ec\u30b9\uff08\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u57fa\u672c\u7684\u306b\u306f\u4e0a\u8a18\u306e\u901a\u308a\u3067\u3059\u304c\u3001\u5916\u90e8\u30a2\u30c9\u30ec\u30b9\u306b\u95a2\u3057\u3066\u306f\u5916\u90e8\u30b0\u30ed\u30fc\u30d0\u30eb\u30a2\u30c9\u30ec\u30b9\u306f\u3001\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30a2\u30c9\u30ec\u30b9\u306b\u306a\u308b\u53ef\u80fd\u6027\u3082\u3042\u308a\u307e\u3059\u3002\uff08\u5916\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3082\u540c\u69d8\u306bNAT\u3092\u5229\u7528\u3057\u3066\u3044\u305f\u5834\u5408\u7b49\uff09<\/p>\n\n\n\n<center><svg 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font-family=\"Helvetica\" font-size=\"16px\" text-anchor=\"middle\" font-weight=\"bold\">\u5916\u90e8\u30a2\u30c9\u30ec\u30b9<\/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><!-- 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\":\"CCNP and CCIE Enterprise Core Encor 350-401 Official Cert Guide CCNP \\u0026 CCIE ENTERPRISE CORE EN \uff08Official Cert Guide\uff09 [ Brad Edgeworth ]\",\"b\":\"\",\"t\":\"\",\"d\":\"https:\\\/\\\/thumbnail.image.rakuten.co.jp\",\"c_p\":\"\",\"p\":[\"\\\/@0_mall\\\/book\\\/cabinet\\\/5230\\\/9781587145230.jpg\"],\"u\":{\"u\":\"https:\\\/\\\/item.rakuten.co.jp\\\/book\\\/16362220\\\/\",\"t\":\"rakuten\",\"r_v\":\"\"},\"v\":\"2.1\",\"b_l\":[{\"id\":2,\"u_tx\":\"Amazon\u3067\u307f\u308b\",\"u_bc\":\"#f79256\",\"u_url\":\"https:\\\/\\\/amzn.to\\\/46eDrN3\",\"a_id\":0,\"p_id\":0,\"pl_id\":0,\"pc_id\":0,\"s_n\":\"custom_2\",\"u_so\":1},{\"id\":3,\"u_tx\":\"\u697d\u5929\u5e02\u5834\u3067\u898b\u308b\",\"u_bc\":\"#f76956\",\"u_url\":\"https:\\\/\\\/item.rakuten.co.jp\\\/book\\\/16362220\\\/\",\"a_id\":3735106,\"p_id\":54,\"pl_id\":27059,\"pc_id\":54,\"s_n\":\"rakuten\",\"u_so\":2}],\"eid\":\"RikFI\",\"s\":\"l\"});\n<\/script>\n<div id=\"msmaflink-RikFI\">\u30ea\u30f3\u30af<\/div>\n<!-- MoshimoAffiliateEasyLink END --><\/center>\n\n\n\n<h2 class=\"wp-block-heading\">Static NAT\u3068\u306f<\/h2>\n\n\n\n<p>NAT\u306e\u6982\u8981\u304c\u308f\u304b\u3063\u305f\u3068\u3053\u308d\u3067\u3082\u3046\u5c11\u3057\u7d30\u304b\u3044\u90e8\u5206\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u307e\u305a\u306f\u3058\u3081\u306b<strong><span class=\"swl-fz u-fz-l\"><span style=\"color:#008000\" class=\"swl-inline-color\"><span class=\"swl-marker mark_green\">\u300cStatic NAT\u300d<\/span><\/span><\/span><\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<p>Static NAT\u306f\u540d\u524d\u306e\u901a\u308a\u3001<strong><span style=\"color:#008000\" class=\"swl-inline-color\"><span class=\"swl-fz u-fz-l\"><span class=\"swl-marker mark_green\">\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30a2\u30c9\u30ec\u30b9\u3068\u30b0\u30ed\u30fc\u30d0\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u7d10\u4ed8\u3051\u3092\u624b\u52d5\u3067\u6c7a\u3081\u308bNAT<\/span><\/span><\/span><\/strong>\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8a2d\u5b9a\u65b9\u6cd5<\/h3>\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\">\u5185\u90e8\u30ed\u30fc\u30ab\u30eb\u3068\u5185\u90e8\u30b0\u30ed\u30fc\u30d0\u30eb\u306e\u7d10\u4ed8\u3051\u5b9a\u7fa9<\/div><div class=\"swell-block-step__body\">\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>(config)# ip nat inside source static &lt;Local Address&gt; &lt;Global Address&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\">\u5185\u90e8NW\u3068\u5916\u90e8NW\u306e\u5b9a\u7fa9<\/div><div class=\"swell-block-step__body\">\n<pre class=\"wp-block-code has-black-background-color 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data-drawio-colors=\"color: rgb(0, 0, 0); \" style=\"box-sizing: border-box; font-size: 0px; text-align: right;\"><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: 20px;\"><b>\u5916\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff0810.1.0.0\/30\uff09<\/b><\/font><\/div><\/div><\/div><\/foreignObject><text x=\"1059\" y=\"20\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"12px\" text-anchor=\"end\">\u5916\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff0810.1.0.0\/30\uff09<\/text><\/switch><\/g><rect x=\"1\" y=\"1\" width=\"630\" height=\"410\" fill=\"#ccccff\" stroke=\"#6c8ebf\" stroke-width=\"2\" stroke-dasharray=\"2 4\" 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 flex-start; justify-content: unsafe flex-start; width: 628px; height: 1px; padding-top: 8px; margin-left: 3px;\"><div data-drawio-colors=\"color: rgb(0, 0, 0); \" style=\"box-sizing: border-box; font-size: 0px; text-align: left;\"><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: 20px;\"><b>\u5185\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08192.168.1.0\/24\uff09<\/b><\/font><\/div><\/div><\/div><\/foreignObject><text x=\"3\" y=\"20\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"12px\">\u5185\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08192.168.1.0\/24\uff09<\/text><\/switch><\/g><path d=\"M 141 151 L 271 151\" fill=\"none\" stroke=\"rgb(0, 0, 0)\" stroke-width=\"3\" stroke-miterlimit=\"10\" pointer-events=\"stroke\"\/><rect x=\"21\" y=\"121\" width=\"120\" height=\"60\" fill=\"#3333ff\" stroke=\"rgb(0, 0, 0)\" 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: 118px; height: 1px; padding-top: 151px; margin-left: 22px;\"><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: 20px;\" color=\"#ffffff\">Router1<\/font><\/div><\/div><\/div><\/foreignObject><text x=\"81\" y=\"155\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"12px\" text-anchor=\"middle\">Router1<\/text><\/switch><\/g><path d=\"M 331 181 L 331 301\" fill=\"none\" stroke=\"rgb(0, 0, 0)\" stroke-width=\"3\" stroke-miterlimit=\"10\" pointer-events=\"stroke\"\/><path d=\"M 391 151 L 571 151\" fill=\"none\" stroke=\"rgb(0, 0, 0)\" stroke-width=\"3\" stroke-miterlimit=\"10\" pointer-events=\"stroke\"\/><rect x=\"271\" y=\"121\" width=\"120\" height=\"60\" fill=\"#3333ff\" stroke=\"rgb(0, 0, 0)\" 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: 118px; height: 1px; padding-top: 151px; margin-left: 272px;\"><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: 20px;\" color=\"#ffffff\">L2SW<\/font><\/div><\/div><\/div><\/foreignObject><text x=\"331\" y=\"155\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"12px\" text-anchor=\"middle\">L2SW<\/text><\/switch><\/g><rect x=\"271\" y=\"301\" width=\"120\" height=\"60\" fill=\"#3333ff\" stroke=\"rgb(0, 0, 0)\" 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: 118px; height: 1px; padding-top: 331px; margin-left: 272px;\"><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: 20px;\" color=\"#ffffff\">Router2<\/font><\/div><\/div><\/div><\/foreignObject><text x=\"331\" y=\"335\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"12px\" text-anchor=\"middle\">Router2<\/text><\/switch><\/g><rect x=\"571\" y=\"121\" width=\"120\" height=\"60\" fill=\"#3333ff\" stroke=\"rgb(0, 0, 0)\" 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: 118px; height: 1px; padding-top: 151px; margin-left: 572px;\"><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: 20px;\" color=\"#ffffff\">Router3<\/font><\/div><\/div><\/div><\/foreignObject><text x=\"631\" y=\"155\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"12px\" text-anchor=\"middle\">Router3<\/text><\/switch><\/g><path d=\"M 691 151 L 901 151\" fill=\"none\" stroke=\"rgb(0, 0, 0)\" stroke-width=\"3\" stroke-miterlimit=\"10\" pointer-events=\"stroke\"\/><rect x=\"631\" y=\"121\" width=\"60\" height=\"60\" fill=\"#ff0000\" 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 flex-start; width: 58px; height: 1px; padding-top: 151px; margin-left: 633px;\"><div data-drawio-colors=\"color: rgb(0, 0, 0); \" style=\"box-sizing: border-box; font-size: 0px; text-align: left;\"><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: 20px;\" color=\"#ffffff\">ter3<\/font><\/div><\/div><\/div><\/foreignObject><text x=\"633\" y=\"155\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"12px\">ter3<\/text><\/switch><\/g><rect x=\"901\" y=\"121\" width=\"120\" height=\"60\" fill=\"#ff0000\" stroke=\"rgb(0, 0, 0)\" 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: 118px; height: 1px; padding-top: 151px; margin-left: 902px;\"><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: 20px;\" color=\"#ffffff\">Router4<\/font><\/div><\/div><\/div><\/foreignObject><text x=\"961\" y=\"155\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"12px\" text-anchor=\"middle\">Router4<\/text><\/switch><\/g><rect x=\"141\" y=\"121\" width=\"30\" 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: 28px; height: 1px; padding-top: 136px; margin-left: 142px;\"><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; font-weight: bold; white-space: normal; overflow-wrap: normal;\">.1<\/div><\/div><\/div><\/foreignObject><text x=\"156\" y=\"141\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"16px\" text-anchor=\"middle\" font-weight=\"bold\">.1<\/text><\/switch><\/g><rect x=\"331\" y=\"271\" width=\"30\" 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: 28px; height: 1px; padding-top: 286px; margin-left: 332px;\"><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; font-weight: bold; white-space: normal; overflow-wrap: normal;\">.2<\/div><\/div><\/div><\/foreignObject><text x=\"346\" y=\"291\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"16px\" text-anchor=\"middle\" font-weight=\"bold\">.2<\/text><\/switch><\/g><rect x=\"531\" y=\"121\" width=\"40\" 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: 38px; height: 1px; padding-top: 136px; margin-left: 532px;\"><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; font-weight: bold; white-space: normal; overflow-wrap: normal;\">.254<\/div><\/div><\/div><\/foreignObject><text x=\"551\" y=\"141\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"16px\" text-anchor=\"middle\" font-weight=\"bold\">.254<\/text><\/switch><\/g><rect x=\"691\" y=\"121\" width=\"40\" 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: 38px; height: 1px; padding-top: 136px; margin-left: 692px;\"><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; font-weight: bold; white-space: normal; overflow-wrap: normal;\">.1<\/div><\/div><\/div><\/foreignObject><text x=\"711\" y=\"141\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"16px\" text-anchor=\"middle\" font-weight=\"bold\">.1<\/text><\/switch><\/g><rect x=\"861\" y=\"121\" width=\"40\" 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: 38px; height: 1px; padding-top: 136px; margin-left: 862px;\"><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; font-weight: bold; white-space: normal; overflow-wrap: normal;\">.2<\/div><\/div><\/div><\/foreignObject><text x=\"881\" y=\"141\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"16px\" text-anchor=\"middle\" font-weight=\"bold\">.2<\/text><\/switch><\/g><rect x=\"68.5\" y=\"81\" width=\"175\" 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: 173px; height: 1px; padding-top: 96px; margin-left: 70px;\"><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; font-weight: bold; white-space: normal; overflow-wrap: normal;\">\u5185\u90e8\u30ed\u30fc\u30ab\u30eb\u30a2\u30c9\u30ec\u30b9<\/div><\/div><\/div><\/foreignObject><text x=\"156\" y=\"101\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"16px\" text-anchor=\"middle\" font-weight=\"bold\">\u5185\u90e8\u30ed\u30fc\u30ab\u30eb\u30a2\u30c9\u30ec\u30b9<\/text><\/switch><\/g><rect x=\"631\" y=\"91\" width=\"180\" 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: 178px; height: 1px; padding-top: 106px; margin-left: 632px;\"><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; font-weight: bold; white-space: normal; overflow-wrap: normal;\">\u5185\u90e8\u30b0\u30ed\u30fc\u30d0\u30eb\u30a2\u30c9\u30ec\u30b9<\/div><\/div><\/div><\/foreignObject><text x=\"721\" y=\"111\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"16px\" text-anchor=\"middle\" font-weight=\"bold\">\u5185\u90e8\u30b0\u30ed\u30fc\u30d0\u30eb\u30a2\u30c9\u30ec\u30b9<\/text><\/switch><\/g><rect x=\"801\" y=\"191\" width=\"180\" 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: 178px; height: 1px; padding-top: 206px; margin-left: 802px;\"><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; font-weight: bold; white-space: normal; overflow-wrap: normal;\">\u5916\u90e8\u30a2\u30c9\u30ec\u30b9<\/div><\/div><\/div><\/foreignObject><text x=\"891\" y=\"211\" fill=\"rgb(0, 0, 0)\" font-family=\"Helvetica\" font-size=\"16px\" text-anchor=\"middle\" font-weight=\"bold\">\u5916\u90e8\u30a2\u30c9\u30ec\u30b9<\/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>\u4e8b\u524d\u78ba\u8a8d\u3067\u306f\u7279\u306b\u8a2d\u5b9a\u304c\u5165\u3063\u3066\u306a\u3044\u3053\u3068\u304c\u81ea\u660e\u306a\u306e\u3067\u8aac\u660e\u306f\u5272\u611b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>Router3\u306bNAT\u306e\u8a2d\u5b9a\u3092\u8ffd\u52a0\u3057\u305f\u30ed\u30b0\u3092\u4ee5\u4e0b\u306b\u8a18\u8f09\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>Router3#conf t\nEnter configuration commands, one per line.  End with CNTL\/Z.\nRouter3(config)#interface gigabitEthernet 0\/1\nRouter3(config-if)#ip nat outside\nRouter3(config-if)#exit\nRouter3(config)#interface gigabitEthernet 0\/3\nRouter3(config-if)#ip nat inside\nRouter3(config-if)#exit\nRouter3(config)#ip nat inside source static 192.168.1.2 10.2.0.1\nRouter3(config)#end<\/code><\/pre>\n\n\n\n<p>\u4e0a\u8a18\u8a2d\u5b9a\u3092\u8ffd\u52a0\u3059\u308b\u3068\u3059\u3050\u306bNAT\u306e\u7d10\u4ed8\u3051\u304c\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>Router3#show ip nat translations\nPro Inside global         Inside local          Outside local         Outside global\n--- 10.2.0.1              192.168.1.2           ---                   ---\nRouter3#<\/code><\/pre>\n\n\n\n<p>\u7d10\u4ed8\u3051\u304c\u884c\u308f\u308c\u3066\u3044\u308b\u306e\u3067\u5185\u90e8\u304b\u3089\u306e\u901a\u4fe1\u306f\u3082\u3061\u308d\u3093\u3001\u5916\u90e8\u304b\u3089\u758e\u901a\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>Router4#ping 10.2.0.1 repeat 100\nType escape sequence to abort.\nSending 100, 100-byte ICMP Echos to 10.2.0.1, timeout is 2 seconds:\n!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\nSuccess rate is 100 percent (100\/100), round-trip min\/avg\/max = 1\/2\/4 ms\nRouter4#<\/code><\/pre>\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\">Dynamic NAT\u3068\u306f<\/h2>\n\n\n\n<p>\u6b21\u306b<strong><span style=\"color:#008000\" class=\"swl-inline-color\"><span class=\"swl-marker mark_green\"><span class=\"swl-fz u-fz-l\">\u300cDynamic NAT\u300d<\/span><\/span><\/span><\/strong>\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong><span class=\"swl-fz u-fz-l\"><span style=\"color:#008000\" class=\"swl-inline-color\">Dynamic NAT<\/span><\/span><\/strong>\u306f\u6307<strong><span class=\"swl-fz u-fz-l\"><span style=\"color:#008000\" class=\"swl-inline-color\">\u5b9a\u3057\u305f\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30a2\u30c9\u30ec\u30b9\u30ec\u30f3\u30b8\u3068\u6307\u5b9a\u3057\u305f\u30b0\u30ed\u30fc\u30d0\u30eb\u30a2\u30c9\u30ec\u30b9\u30ec\u30f3\u30b8\u3092\u52d5\u7684\u306b\u7d10\u3065\u3051\u308bNAT<\/span><\/span><\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<p><strong><span class=\"swl-fz u-fz-l\"><span style=\"color:#ff0000\" class=\"swl-inline-color\"><span class=\"swl-marker mark_orange\">\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\uff08\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30a2\u30c9\u30ec\u30b9\uff09\u304c\u591a\u6570\u306e\u5834\u5408\u3001\u624b\u52d5\u3067\uff11\u3064\uff11\u3064\u7d10\u3065\u3051\u308b\u3053\u3068\u306f\u624b\u9593\u3082\u304b\u304b\u308a\u56f0\u96e3<\/span><\/span><\/span><\/strong>\u3060\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u3093\u306a\u6642\u306b\u5229\u7528\u3055\u308c\u308b\u306e\u304c\u3053\u306eNAT\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8a2d\u5b9a\u65b9\u6cd5\uff08\u4e00\u90e8\u9806\u4e0d\u540c\uff09<\/h3>\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\">\u5185\u90e8\u30b0\u30ed\u30fc\u30d0\u30eb\u306e\u30d7\u30fc\u30eb\u3092\u5b9a\u7fa9<\/div><div class=\"swell-block-step__body\">\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>(config)# ip nat pool &lt;\u30d7\u30fc\u30eb\u540d&gt; &lt;\u958b\u59cbIP&gt; &lt;\u7d42\u4e86IP&gt; &#91;netmask &lt;\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af&gt; | prefix-length &lt;length&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\">\u5909\u63db\u5143\u3068\u306a\u308b\u5185\u90e8\u30ed\u30fc\u30ab\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u7bc4\u56f2\u3092ACL\u3067\u5b9a\u7fa9<\/div><div class=\"swell-block-step__body\">\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>(config)# access-list &lt;ACL\u756a\u53f7&gt; permit &lt;NW\u30a2\u30c9\u30ec\u30b9&gt; &lt;\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9&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\">ACL\u3068\u30a2\u30c9\u30ec\u30b9\u30d7\u30fc\u30eb\u306e\u7d10\u4ed8\u3051<\/div><div class=\"swell-block-step__body\">\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>(config)# ip nat inside source list &lt;ACL\u756a\u53f7&gt; pool &lt;\u30d7\u30fc\u30eb\u540d&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\">\u5185\u90e8NW\/\u5916\u90e8NW\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 nat &#91;inside | outside]<\/code><\/pre>\n<\/div><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u5b9f\u6a5f\u78ba\u8a8d<\/h3>\n\n\n\n<p><strong><span class=\"swl-fz u-fz-l\">Dynamic NAT\u306e\u5b9f\u6a5f\u78ba\u8a8d<\/span><\/strong>\u3092\u884c\u3044\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5148\u7a0b\u3068\u540c\u69d8\u306bRouter3\u306b\u8a2d\u5b9a\u3092\u8ffd\u52a0\u3057\u305f\u306e\u3067\u305d\u306e\u969b\u306e\u30ed\u30b0\u3092\u4ee5\u4e0b\u306b\u8a18\u8f09\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>Router3#conf t\nEnter configuration commands, one per line.  End with CNTL\/Z.\n\nRouter3(config)#ip nat pool test 10.2.0.1 10.2.0.2 netmask 255.255.255.0\n\nRouter3(config)#access-list 1 permit 192.168.1.0 0.0.0.255\n\n\nRouter3(config)#ip nat inside source list 1 pool test\nRouter3(config)#end<\/code><\/pre>\n\n\n\n<p>\u4e0a\u8a18\u306e\u8a2d\u5b9a\u3060\u3051\u3067\u306f\u3001<strong><span class=\"swl-fz u-fz-l\"><span style=\"color:#ff0000\" class=\"swl-inline-color\">NAT\u306e\u7d10\u4ed8\u3051\u306f\u884c\u308f\u308c\u3066\u3044\u307e\u305b\u3093\u3002<\/span><\/span><\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>Router3#show ip nat translations\nRouter3#\nRouter3#<\/code><\/pre>\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\">\u5909\u63db\u5143\u306e\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\u304c\u5916\u90e8\u5411\u3051\u306b\u901a\u4fe1\u3092\u884c\u3063\u3066\u521d\u3081\u3066\u5909\u63db\u30fb\u7d10\u4ed8\u3051\u304c\u884c\u308f\u308c\u308b\u306e<\/span><\/span><\/span><\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>Router1#ping 10.1.0.2\nType escape sequence to abort.\nSending 5, 100-byte ICMP Echos to 10.1.0.2, timeout is 2 seconds:\n!!!!!\nSuccess rate is 100 percent (5\/5), round-trip min\/avg\/max = 2\/2\/4 ms\n\nRouter3#show ip nat translations\nPro Inside global         Inside local          Outside local         Outside global\nicmp 10.2.0.1:9           192.168.1.2:9         10.1.0.2:9            10.1.0.2:9\n--- 10.2.0.1              192.168.1.2           ---                   ---\nRouter3#<\/code><\/pre>\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\">PAT\uff08NAPT\uff09\u3068\u306f<\/h2>\n\n\n\n<p>\u6700\u5f8c\u306bPAT\uff08NAPT\uff09\u306b\u3064\u3044\u3066\u3067\u3059\u304c\u3001<strong><span class=\"swl-fz u-fz-l\"><span style=\"color:#008000\" class=\"swl-inline-color\"><span class=\"swl-marker mark_green\">\u3053\u308c\u306f\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30a2\u30c9\u30ec\u30b9\u3088\u308a\u3082\u30b0\u30ed\u30fc\u30d0\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u6570\u304c\u5c11\u306a\u3044\u5834\u5408\u306b\u540c\u6642\u63a5\u7d9a\u3092\u884c\u3046\u305f\u3081\u306b\u5229\u7528<\/span><\/span><\/span><\/strong>\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong><span class=\"swl-fz u-fz-l\"><span style=\"color:#ff8c00\" class=\"swl-inline-color\"><span class=\"swl-marker mark_orange\">\u4eca\u307e\u3067\u306eNAT\u306f\u30a2\u30c9\u30ec\u30b9\u3068\u30a2\u30c9\u30ec\u30b9\u306e\u7d10\u4ed8\u3051<\/span><\/span><\/span><\/strong>\u3067\u3057\u305f\u304c\u3001<strong><span class=\"swl-fz u-fz-l\"><span class=\"swl-marker mark_green\"><span style=\"color:#008000\" class=\"swl-inline-color\">PAT\uff08NAPT\uff09\u306f\u30a2\u30c9\u30ec\u30b9\u306b\u52a0\u3048\u3066\u30dd\u30fc\u30c8\u756a\u53f7\u306e\u5909\u63db<\/span><\/span><\/span><\/strong>\u3082\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u3046\u3059\u308b\u3053\u3068\u3067\u30a2\u30c9\u30ec\u30b9\u6570\u304c\u4e00\u81f4\u3057\u306a\u304f\u3066\u3082\u540c\u6642\u63a5\u7d9a\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8a2d\u5b9a\u65b9\u6cd5<\/h3>\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\">\u5185\u90e8\u30b0\u30ed\u30fc\u30d0\u30eb\u306e\u30d7\u30fc\u30eb\u3092\u5b9a\u7fa9<\/div><div class=\"swell-block-step__body\">\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>(config)# ip nat pool &lt;\u30d7\u30fc\u30eb\u540d&gt; &lt;\u958b\u59cbIP&gt; &lt;\u7d42\u4e86IP&gt; &#91;netmask &lt;\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af&gt; | prefix-length &lt;length&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\">\u5909\u63db\u5143\u3068\u306a\u308b\u5185\u90e8\u30ed\u30fc\u30ab\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u7bc4\u56f2\u3092ACL\u3067\u5b9a\u7fa9<\/div><div class=\"swell-block-step__body\">\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>(config)# access-list &lt;ACL\u756a\u53f7&gt; permit &lt;NW\u30a2\u30c9\u30ec\u30b9&gt; &lt;\u30ef\u30a4\u30eb\u30c9\u30ab\u30fc\u30c9&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\">ACL\u3068\u30a2\u30c9\u30ec\u30b9\u30d7\u30fc\u30eb\u306e\u7d10\u4ed8\u3051<\/div><div class=\"swell-block-step__body\">\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>(config)# ip nat inside source list &lt;ACL\u756a\u53f7&gt; pool &lt;\u30d7\u30fc\u30eb\u540d&gt; overload<\/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\">\u5185\u90e8NW\/\u5916\u90e8NW\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 nat &#91;inside | outside]<\/code><\/pre>\n<\/div><\/div>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u5b9f\u6a5f\u78ba\u8a8d<\/h3>\n\n\n\n<p>PAT\u306e\u8a2d\u5b9a\u306f\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3067\u884c\u306a\u3063\u3066\u304a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>Router3#conf t\nEnter configuration commands, one per line.  End with CNTL\/Z.\nRouter3(config)#ip nat pool test 10.2.0.1 10.2.0.1 netmask 255.255.255.0\nRouter3(config)#access-list 1 permit 192.168.1.0 0.0.0.255\nRouter3(config)#ip nat inside source list 1 pool test overload\nRouter3(config)#end\nRouter3#<\/code><\/pre>\n\n\n\n<p>\u305d\u3057\u3066\u3001Router1\u3068Router2\u304b\u3089\u305d\u308c\u305e\u308c\u5916\u90e8\u5b9b\u306bPing\u3092\u884c\u306a\u3063\u305f\u5f8c\u306bNAT\u306e\u5909\u63db\u72b6\u6cc1\u3092\u78ba\u8a8d\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code has-black-background-color has-background\"><code>Router3#show ip nat translations\nPro Inside global         Inside local          Outside local         Outside global\nicmp 10.2.0.1:3           192.168.1.1:3         10.1.0.2:3            10.1.0.2:3\nicmp 10.2.0.1:10          192.168.1.2:10        10.1.0.2:10           10.1.0.2:10\nRouter3#<\/code><\/pre>\n\n\n\n<p>\u4e0a\u8a18\u306e\u51fa\u529b\u7d50\u679c\u3088\u308a\u3082\u540c\u3058\u30a2\u30c9\u30ec\u30b9\u306b\u5bfe\u3057\u3066\u7570\u306a\u308b\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30a2\u30c9\u30ec\u30b9\u304c\u30a2\u30b5\u30a4\u30f3\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u5bfe\u5fdc\u3059\u308b\u3053\u3068\u3067PAT\u304c\u53ef\u80fd\u3068\u306a\u308a\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> \u4eca\u56de\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u306e\u5909\u63db\u6280\u8853\u3067\u3042\u308bNAT\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>CCNP\u306e\u8a66\u9a13\u3082\u9593\u8fd1\u3068\u306a\u3063\u3066\u3044\u308b\u306e\u3067\u6df1\u6398\u308a\u306e\u30b9\u30d4\u30fc\u30c9\u3092\u4e0a\u3052\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>\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\u3001CCNP\u306e\u5b66\u7fd2\u306e\u4e00\u74b0\u3068\u3057\u3066NAT\uff08Network Address Translation\uff09\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002 NAT\u3068\u306f NAT [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1456,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[607,622],"tags":[66,41,64,193,68,39],"class_list":["post-1446","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-607","category--ccna-ccnp","tag-ccnp","tag-cisco","tag-ios","tag-nat","tag-network","tag-39"],"_links":{"self":[{"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=\/wp\/v2\/posts\/1446","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=1446"}],"version-history":[{"count":11,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=\/wp\/v2\/posts\/1446\/revisions"}],"predecessor-version":[{"id":1611,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=\/wp\/v2\/posts\/1446\/revisions\/1611"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=\/wp\/v2\/media\/1456"}],"wp:attachment":[{"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1446"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1446"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/daimaru-tech-blog.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1446"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}