{"id":1298,"date":"2023-09-08T14:51:44","date_gmt":"2023-09-08T05:51:44","guid":{"rendered":"https:\/\/baremetal.jp\/blog\/?p=1298"},"modified":"2023-09-08T15:02:21","modified_gmt":"2023-09-08T06:02:21","slug":"nat%e3%81%a8%e3%81%af%ef%bc%9f-%e3%82%a2%e3%83%89%e3%83%ac%e3%82%b9%e5%a4%89%e6%8f%9b%e3%81%ae%e4%bb%95%e7%b5%84%e3%81%bf%e3%82%84%e5%bf%85%e8%a6%81%e6%80%a7%e3%80%81napt%e3%81%a8%e3%81%ae%e9%81%95","status":"publish","type":"post","link":"https:\/\/baremetal.jp\/blog\/2023\/09\/08\/1298\/","title":{"rendered":"NAT\u3068\u306f\uff1f\u30a2\u30c9\u30ec\u30b9\u5909\u63db\u306e\u4ed5\u7d44\u307f\u3084\u5fc5\u8981\u6027\u3001NAPT\u3068\u306e\u9055\u3044\u3092\u89e3\u8aac"},"content":{"rendered":"\n<p>NAT\u3068\u306f\u3001\u300cNetwork Address Translation\u300d\u306e\u7565\u79f0\u3067\u3001IP\u30a2\u30c9\u30ec\u30b9\u3092\u4ed6\u306eIP\u30a2\u30c9\u30ec\u30b9\u306b\u5909\u63db\u3059\u308b\u6280\u8853\u306e\u3053\u3068\u3067\u3059\u3002NAT\u306f\u4e3b\u306b\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u3092\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u306b\u5909\u63db\u3001\u3082\u3057\u304f\u306f\u305d\u306e\u9006\u3092\u884c\u3044\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3078\u63a5\u7d9a\u3059\u308b\u305f\u3081\u306b\u5229\u7528\u3055\u308c\u307e\u3059\u3002\u672c\u8a18\u4e8b\u3067\u306fNAT\u306e\u6982\u8981\u3084\u4ed5\u7d44\u307f\u3001\u5fc5\u8981\u6027\u3001NAPT\u3068\u306e\u9055\u3044\u306a\u3069\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_45 counter-hierarchy ez-toc-counter ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">\u76ee\u6b21<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/baremetal.jp\/blog\/2023\/09\/08\/1298\/#NAT%E3%81%A8%E3%81%AF\" title=\"NAT\u3068\u306f\">NAT\u3068\u306f<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/baremetal.jp\/blog\/2023\/09\/08\/1298\/#%E3%82%B0%E3%83%AD%E3%83%BC%E3%83%90%E3%83%ABIP%E3%82%A2%E3%83%89%E3%83%AC%E3%82%B9%E3%81%A8%E3%81%AF\" title=\"\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u3068\u306f\">\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u3068\u306f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/baremetal.jp\/blog\/2023\/09\/08\/1298\/#%E3%83%97%E3%83%A9%E3%82%A4%E3%83%99%E3%83%BC%E3%83%88IP%E3%82%A2%E3%83%89%E3%83%AC%E3%82%B9%E3%81%A8%E3%81%AF\" title=\"\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u3068\u306f\">\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u3068\u306f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/baremetal.jp\/blog\/2023\/09\/08\/1298\/#NAT%E3%81%AE%E5%BF%85%E8%A6%81%E6%80%A7\" title=\"NAT\u306e\u5fc5\u8981\u6027\">NAT\u306e\u5fc5\u8981\u6027<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/baremetal.jp\/blog\/2023\/09\/08\/1298\/#NAT%E3%81%AE%E4%BB%95%E7%B5%84%E3%81%BF\" title=\"NAT\u306e\u4ed5\u7d44\u307f\">NAT\u306e\u4ed5\u7d44\u307f<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/baremetal.jp\/blog\/2023\/09\/08\/1298\/#NAT%E3%81%AE%E4%BB%95%E7%B5%84%E3%81%BF-2\" title=\"NAT\u306e\u4ed5\u7d44\u307f\">NAT\u306e\u4ed5\u7d44\u307f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/baremetal.jp\/blog\/2023\/09\/08\/1298\/#NAT%E3%81%AE%E7%A8%AE%E9%A1%9E\" title=\"NAT\u306e\u7a2e\u985e\">NAT\u306e\u7a2e\u985e<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/baremetal.jp\/blog\/2023\/09\/08\/1298\/#NAT%E3%81%AE%E5%BC%B1%E7%82%B9\" title=\"NAT\u306e\u5f31\u70b9\">NAT\u306e\u5f31\u70b9<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/baremetal.jp\/blog\/2023\/09\/08\/1298\/#NAPT%E3%81%A8%E3%81%AF\" title=\"NAPT\u3068\u306f\">NAPT\u3068\u306f<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/baremetal.jp\/blog\/2023\/09\/08\/1298\/#NAT%E3%81%A8NAPT%E3%81%AE%E9%81%95%E3%81%84\" title=\"NAT\u3068NAPT\u306e\u9055\u3044\">NAT\u3068NAPT\u306e\u9055\u3044<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/baremetal.jp\/blog\/2023\/09\/08\/1298\/#%E3%81%BE%E3%81%A8%E3%82%81\" title=\"\u307e\u3068\u3081\">\u307e\u3068\u3081<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"NAT%E3%81%A8%E3%81%AF\"><\/span><strong>NAT<\/strong><strong>\u3068\u306f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>NAT\uff08Network Address Translation\uff09\u3068\u306f\u3001\u9001\u4fe1\u5143\u3001\u3082\u3057\u304f\u306f\u5b9b\u5148\u3068\u306a\u308bIP\u30a2\u30c9\u30ec\u30b9\u3092\u5225\u306eIP\u30a2\u30c9\u30ec\u30b9\u3078\u5909\u63db\u3059\u308b\u6280\u8853\u306e\u3053\u3068\u3092\u6307\u3057\u307e\u3059\u3002\u4e00\u822c\u7684\u306b\u306f\u3001\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u3092\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u306b\u5909\u63db\u3001\u3082\u3057\u304f\u306f\u305d\u306e\u9006\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3><span class=\"ez-toc-section\" id=\"%E3%82%B0%E3%83%AD%E3%83%BC%E3%83%90%E3%83%ABIP%E3%82%A2%E3%83%89%E3%83%AC%E3%82%B9%E3%81%A8%E3%81%AF\"><\/span><strong>\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u3068\u306f<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u3068\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u63a5\u7d9a\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308bIP\u30a2\u30c9\u30ec\u30b9\u3067\u3059\u3002\u30d1\u30d6\u30ea\u30c3\u30afIP\u30a2\u30c9\u30ec\u30b9\u3068\u3044\u3046\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u7aef\u672b\u3092\u500b\u3005\u306b\u7279\u5b9a\u3059\u308b\u305f\u3081\u306e\u4f4f\u6240\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3001\u4e16\u754c\u4e2d\u3067\u4e00\u610f\u306e\u5024\u304c\u5272\u308a\u5f53\u3066\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3><span class=\"ez-toc-section\" id=\"%E3%83%97%E3%83%A9%E3%82%A4%E3%83%99%E3%83%BC%E3%83%88IP%E3%82%A2%E3%83%89%E3%83%AC%E3%82%B9%E3%81%A8%E3%81%AF\"><\/span><strong>\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u3068\u306f<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u3068\u306f\u3001\u7d44\u7e54\u5185\u306e\u30ed\u30fc\u30ab\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u3067\u306e\u307f\u4f7f\u7528\u3055\u308c\u308bIP\u30a2\u30c9\u30ec\u30b9\u3067\u3059\u3002\u30ed\u30fc\u30ab\u30ebIP\u30a2\u30c9\u30ec\u30b9\u3068\u3082\u3044\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u30ed\u30fc\u30ab\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u306f\u3001\u793e\u5185\u3084\u5bb6\u5ead\u306a\u3069\u306e\u9650\u3089\u308c\u305f\u30a8\u30ea\u30a2\u306b\u3042\u308b\u7aef\u672b\u540c\u58eb\u3067\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u3092\u7528\u3044\u3066\u901a\u4fe1\u3092\u884c\u3046\u74b0\u5883\u306e\u3053\u3068\u3067\u3059\u3002\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u306f\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u3067\u3042\u308c\u3070\u901a\u4fe1\u3067\u304d\u307e\u3059\u304c\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u306f\u901a\u4fe1\u304c\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u304c\u767b\u5834\u3057\u305f\u80cc\u666f\u306f\u30011980\u5e74\u4ee3\u4ee5\u964d\u306b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u304c\u6025\u6210\u9577\u3057\u305f\u7d50\u679c\u3001IP\u30a2\u30c9\u30ec\u30b9\u306e\u6570\u304c\u67af\u6e07\u3057\u8db3\u308a\u306a\u304f\u306a\u308b\u30ea\u30b9\u30af\u304c\u751f\u3058\u307e\u3057\u305f\u3002\u305d\u3053\u3067\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3068\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u3064\u306a\u3050\u6a5f\u5668\u306b\u306e\u307f\u3001\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u3092\u5272\u308a\u5f53\u3066\u3001\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u7aef\u672b\u306b\u306f\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u3092\u5272\u308a\u5f53\u3066\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u305d\u306e\u305f\u3081\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u306f\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u3067\u306e\u307f\u91cd\u8907\u3057\u306a\u3051\u308c\u3070\u826f\u304f\u3001\u5225\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u3067\u540c\u3058IP\u30a2\u30c9\u30ec\u30b9\u304c\u4ed8\u4e0e\u3055\u308c\u3066\u3044\u3066\u3082\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h3><span class=\"ez-toc-section\" id=\"NAT%E3%81%AE%E5%BF%85%E8%A6%81%E6%80%A7\"><\/span><strong>NAT<\/strong><strong>\u306e\u5fc5\u8981\u6027<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>\u4eee\u306b\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u3067\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3078\u306e\u63a5\u7d9a\u3092\u8a66\u307f\u3088\u3046\u3068\u3057\u3066\u3082\u3001\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306b\u30eb\u30fc\u30c8\u60c5\u5831\u304c\u5b58\u5728\u3057\u306a\u3044\u305f\u3081\u901a\u4fe1\u3067\u304d\u307e\u305b\u3093\u3002\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u63a5\u7d9a\u3057\u3088\u3046\u3068\u3059\u308b\u5834\u5408\u306f\u3001\u5fc5\u305a\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u306bNAT\u3059\u308b\u3053\u3068\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>NAT\u306f\u3001\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u9593\u306b\u3042\u308b\u30eb\u30fc\u30bf\u30fc\u3084\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3001\u8ca0\u8377\u5206\u6563\u88c5\u7f6e\uff08\u30ed\u30fc\u30c9\u30d0\u30e9\u30f3\u30b5\u30fc\uff09\u306a\u3069\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6a5f\u5668\u306b\u6a5f\u80fd\u3068\u3057\u3066\u5099\u308f\u3063\u3066\u304a\u308a\u3001\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u3068\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u306e\u5909\u63db\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2><span class=\"ez-toc-section\" id=\"NAT%E3%81%AE%E4%BB%95%E7%B5%84%E3%81%BF\"><\/span><strong>NAT<\/strong><strong>\u306e\u4ed5\u7d44\u307f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u6b21\u306b\u3001NAT\u306e\u30a2\u30c9\u30ec\u30b9\u5909\u63db\u306e\u4ed5\u7d44\u307f\u3084\u7a2e\u985e\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3><span class=\"ez-toc-section\" id=\"NAT%E3%81%AE%E4%BB%95%E7%B5%84%E3%81%BF-2\"><\/span><strong>NAT<\/strong><strong>\u306e\u4ed5\u7d44\u307f<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>NAT\u306f\u3069\u306e\u3088\u3046\u306a\u30d7\u30ed\u30bb\u30b9\u3067IP\u30a2\u30c9\u30ec\u30b9\u306e\u5909\u63db\u3092\u884c\u3046\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u9593\u306bNAT\u306e\u6a5f\u80fd\u3092\u6301\u3064\u30eb\u30fc\u30bf\u30fc\u304c\u3042\u308b\u3053\u3068\u3092\u60f3\u5b9a\u3057\u3066\u3001NAT\u306e\u4ed5\u7d44\u307f\u3068\u63a5\u7d9a\u307e\u3067\u306e\u6d41\u308c\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ol type=\"1\" start=\"1\">\n<li>\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u3067\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u3092\u5272\u308a\u5f53\u3066\u3089\u308c\u305f\u7aef\u672b\uff08\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\uff09\u304c\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306eWeb\u30b5\u30a4\u30c8\u3092\u95b2\u89a7\u3059\u308b\u305f\u3081\u306bWeb\u30b5\u30fc\u30d0\u30fc\u3078\u30a2\u30af\u30bb\u30b9\u3092\u8a66\u307f\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<ol type=\"1\" start=\"2\">\n<li>\u7aef\u672b\u306e\u6301\u3064\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u3067\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3078\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u305f\u3081\u3001\u30eb\u30fc\u30bf\u30fc\u304c\u4fdd\u6301\u3059\u308b\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u306b\u5909\u63db\u3092\u884c\u3063\u305f\u4e0a\u3067\u3001Web\u30b5\u30fc\u30d0\u30fc\u3078\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u308a\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<ol type=\"1\" start=\"3\">\n<li>Web\u30b5\u30fc\u30d0\u30fc\u306f\u30eb\u30fc\u30bf\u30fc\u306b\u3088\u3063\u3066\u5909\u63db\u3055\u308c\u305f\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u306b\u5bfe\u3057\u3066\u5fdc\u7b54\uff08\u30ec\u30b9\u30dd\u30f3\u30b9\uff09\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<ol type=\"1\" start=\"4\">\n<li>\u5fdc\u7b54\uff08\u30ec\u30b9\u30dd\u30f3\u30b9\uff09\u3092\u53d7\u3051\u53d6\u3063\u305f\u30eb\u30fc\u30bf\u30fc\u306f\u3001\u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u5b9b\u5148\uff08\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\uff09\u3092\u7aef\u672b\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u3078\u5909\u63db\u3092\u884c\u3044\u3001\u7aef\u672b\u3078\u9001\u4fe1\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<ol type=\"1\" start=\"5\">\n<li>\u3053\u308c\u306b\u3088\u308a\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u7aef\u672b\u3068\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306eWeb\u30b5\u30fc\u30d0\u30fc\u3068\u306e\u901a\u4fe1\u304c\u6210\u7acb\u3057\u3001Web\u30b5\u30a4\u30c8\u3092\u95b2\u89a7\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"1400\" height=\"780\" src=\"https:\/\/baremetal.jp\/blog\/wp-content\/uploads\/2023\/09\/NAT.png\" alt=\"\" class=\"wp-image-1300\" srcset=\"https:\/\/baremetal.jp\/blog\/wp-content\/uploads\/2023\/09\/NAT.png 1400w, https:\/\/baremetal.jp\/blog\/wp-content\/uploads\/2023\/09\/NAT-768x428.png 768w\" sizes=\"(max-width: 1400px) 100vw, 1400px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h3><span class=\"ez-toc-section\" id=\"NAT%E3%81%AE%E7%A8%AE%E9%A1%9E\"><\/span><strong>NAT<\/strong><strong>\u306e\u7a2e\u985e<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>NAT\u306f\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30a2\u30c9\u30ec\u30b9\u3068\u30b0\u30ed\u30fc\u30d0\u30eb\u30a2\u30c9\u30ec\u30b9\u30921\u5bfe1\u3067\u5909\u63db\u3092\u884c\u3046\u6280\u8853\u3067\u3059\u304c\u3001\u5909\u63db\u65b9\u6cd5\u306b\u306f\u4ee5\u4e0b\u306e2\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u30fb\u30b9\u30bf\u30c6\u30a3\u30c3\u30afNAT\uff08\u9759\u7684NAT\uff09<\/strong><br>\u7ba1\u7406\u8005\u304c\u3042\u3089\u304b\u3058\u3081\u8a2d\u5b9a\u3057\u305f\u30eb\u30fc\u30eb\u306b\u5f93\u3044\u30011\u5bfe1\u3067\u56fa\u5b9a\u7684\u306b\u5909\u63db\u3059\u308b\u65b9\u6cd5\u3067\u3059\u3002\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u8907\u6570\u306e\u6a5f\u5668\u304c\u5916\u90e8\u3068\u901a\u4fe1\u3057\u305f\u3044\u5834\u5408\u3001\u540c\u3058\u6570\u3060\u3051\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u304c\u5fc5\u8981\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong>\u30fb\u30c0\u30a4\u30ca\u30df\u30c3\u30afNAT\uff08\u52d5\u7684NAT\uff09<\/strong><br>IP\u30a2\u30c9\u30ec\u30b9\u306e\u30d7\u30fc\u30eb\u3092\u8a2d\u5b9a\u3057\u3066\u304a\u304d\u3001\u5916\u90e8\u3078\u306e\u901a\u4fe1\u304c\u767a\u751f\u3057\u305f\u969b\u306b\u305d\u306e\u30d7\u30fc\u30eb\u5185\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u4e00\u6642\u7684\u306b\u4f7f\u7528\u3057\u3066\u5909\u63db\u3092\u884c\u3046\u65b9\u6cd5\u3067\u3059\u3002\u9759\u7684NAT\u3068\u7570\u306a\u308a\u3001\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u3092\u8907\u6570\u3067\u5171\u6709\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u304c\u3001\u30a2\u30c9\u30ec\u30b9\u30d7\u30fc\u30eb\u3092\u4f7f\u3044\u5207\u308b\u3068\u4ee5\u964d\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u63a5\u7d9a\u3067\u304d\u305a\u30a2\u30c9\u30ec\u30b9\u304c\u8fd4\u5374\u3055\u308c\u308b\u307e\u3067\u5f85\u3064\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3><span class=\"ez-toc-section\" id=\"NAT%E3%81%AE%E5%BC%B1%E7%82%B9\"><\/span><strong>NAT<\/strong><strong>\u306e\u5f31\u70b9<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>NAT\u306f\u57fa\u672c\u7684\u306b\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u3068\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u30921\u5bfe1\u3067\u5909\u63db\u3059\u308b\u6280\u8853\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30eb\u30fc\u30bf\u30fc\u304c\u4fdd\u6301\u3059\u308b\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u306e\u6570\u3057\u304b\u8907\u6570\u7aef\u672b\u304c\u540c\u6642\u306b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3078\u63a5\u7d9a\u3067\u304d\u306a\u3044\u3068\u3044\u3046\u554f\u984c\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306b\u767b\u5834\u3057\u305f\u306e\u304c\u6b21\u7ae0\u3067\u89e3\u8aac\u3059\u308bNAPT\u3067\u3059\u3002<\/p>\n\n\n\n<h2><span class=\"ez-toc-section\" id=\"NAPT%E3%81%A8%E3%81%AF\"><\/span><strong>NAPT<\/strong><strong>\u3068\u306f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>NAPT\uff08Network Address Port Translation\uff09\u3068\u306f\u3001NAT\u306e\u554f\u984c\u70b9\u3092\u89e3\u6d88\u3059\u308b\u305f\u3081\u306b\u767b\u5834\u3057\u305f\u6280\u8853\u3067\u3001\u30dd\u30fc\u30c8\u756a\u53f7\u3092\u6d3b\u7528\u3059\u308b\u3053\u3068\u30671\u3064\u306e\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u3092\u540c\u6642\u306b\u8907\u6570\u306e\u7aef\u672b\u3067NAT\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u305f\u3082\u306e\u3067\u3059\u3002PAT\uff08Port Address Translation\uff09\u3084 IP\u30de\u30b9\u30ab\u30ec\u30fc\u30c9\u3068\u3082\u8a00\u308f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>NAPT\u3067\u306f\u30a2\u30c9\u30ec\u30b9\u5909\u63db\u3092\u884c\u3046\u969b\u3001\u9001\u4fe1\u5143\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30a2\u30c9\u30ec\u30b9\u7aef\u672b\u306eTCP\/UDP\u30dd\u30fc\u30c8\u756a\u53f7\u3092\u3001\u30e6\u30cb\u30fc\u30af\u306a\u30dd\u30fc\u30c8\u756a\u53f7\u306b\u66f8\u304d\u63db\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4f8b\u3048\u3070\u3001\u7aef\u672bA\u306b\u5bfe\u3057\u3066\u30dd\u30fc\u30c8\u756a\u53f76001\u3001\u7aef\u672bB\u306b\u5bfe\u3057\u3066\u30dd\u30fc\u30c8\u756a\u53f76002\u3092\u5272\u308a\u5f53\u3066\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u3082\u3057\u7aef\u672bA\u3068\u7aef\u672bB\u304c\u540c\u3058\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u7528\u3057\u3066\u3044\u305f\u3068\u3057\u3066\u3082\u3001\u30eb\u30fc\u30bf\u30fc\u306f\u623b\u308a\u306e\u30d1\u30b1\u30c3\u30c8\u3092A\u30fbB\u3069\u3061\u3089\u5b9b\u304b\u30dd\u30fc\u30c8\u756a\u53f7\u3092\u983c\u308a\u306b\u5224\u65ad\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u308c\u306b\u3088\u308a\u30011\u3064\u306e\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u3067\u8907\u6570\u306e\u7aef\u672b\u304c\u540c\u6642\u306b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3078\u63a5\u7d9a\u3067\u304d\u308b1\u5bfe\u591a\u306e\u5909\u63db\u304c\u53ef\u80fd\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"1400\" height=\"803\" src=\"https:\/\/baremetal.jp\/blog\/wp-content\/uploads\/2023\/09\/NAPT.png\" alt=\"\" class=\"wp-image-1301\" srcset=\"https:\/\/baremetal.jp\/blog\/wp-content\/uploads\/2023\/09\/NAPT.png 1400w, https:\/\/baremetal.jp\/blog\/wp-content\/uploads\/2023\/09\/NAPT-768x441.png 768w\" sizes=\"(max-width: 1400px) 100vw, 1400px\" \/><\/figure>\n\n\n\n<h3><span class=\"ez-toc-section\" id=\"NAT%E3%81%A8NAPT%E3%81%AE%E9%81%95%E3%81%84\"><\/span><strong>NAT<\/strong><strong>\u3068NAPT\u306e\u9055\u3044<\/strong><strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>NAT\u3068NAPT\u306e\u9055\u3044\u3092\u307e\u3068\u3081\u308b\u3068\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<p>NAT\uff1a\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u3068\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u30921\u5bfe1\u3067\u5909\u63db\u3059\u308b\u6280\u8853<\/p>\n\n\n\n<p>NAPT\uff1a\u30dd\u30fc\u30c8\u756a\u53f7\u3092\u4f7f\u7528\u3057\u30661\u3064\u306e\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u3092\u8907\u6570\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u306b1\u5bfe\u591a\u3067\u540c\u6642\u306b\u5909\u63db\u3059\u308b\u6280\u8853<\/p>\n\n\n\n<p>\u3064\u307e\u308a\u3001\u4fdd\u6301\u3059\u308b\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u4ee5\u4e0a\u306e\u8907\u6570\u7aef\u672b\u3067\u540c\u6642\u306b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3057\u305f\u3044\u5834\u5408\u306f\u3001NAT\u3067\u306f\u306a\u304fNAPT\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2><span class=\"ez-toc-section\" id=\"%E3%81%BE%E3%81%A8%E3%82%81\"><\/span><strong>\u307e\u3068\u3081<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>NAT\u3068\u306f\u3001\u9001\u4fe1\u5143\u3001\u3082\u3057\u304f\u306f\u5b9b\u5148\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u5225\u306eIP\u30a2\u30c9\u30ec\u30b9\u306b\u5909\u63db\u3059\u308b\u6280\u8853\u306e\u3053\u3068\u3067\u3059\u3002\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u63a5\u7d9a\u3059\u308b\u306b\u306f\u3001\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u3092\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u306b\u5909\u63db\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u3001\u305d\u306e\u969b\u306bNAT\u306f\u5fc5\u9808\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305f\u3060\u3057\u3001NAT\u306f1\u5bfe1\u306e\u5909\u63db\u3057\u304b\u3067\u304d\u305a\u3001\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u306e\u6570\u4ee5\u4e0a\u306e\u8907\u6570\u7aef\u672b\u3067\u540c\u6642\u306b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u3053\u308c\u3092\u89e3\u6c7a\u3059\u308b\u6280\u8853\u304cNAPT\u3067\u3059\u3002NAT\u3068NAPT\u306e\u9055\u3044\u3092\u7406\u89e3\u3057\u305f\u4e0a\u3067\u3001\u8981\u4ef6\u306b\u5408\u308f\u305b\u3066\u4f7f\u3044\u5206\u3051\u307e\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>NAT\u3068\u306f\u3001\u300cNetwork Address Translation\u300d\u306e\u7565\u79f0\u3067\u3001IP\u30a2\u30c9\u30ec\u30b9\u3092\u4ed6\u306eIP\u30a2\u30c9\u30ec\u30b9\u306b\u5909\u63db\u3059\u308b\u6280\u8853\u306e\u3053\u3068\u3067\u3059\u3002NAT\u306f\u4e3b\u306b\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u3092\u30b0\u30ed\u30fc\u30d0\u30ebIP\u30a2\u30c9\u30ec\u30b9\u306b\u5909\u63db\u3001\u3082\u3057\u304f\u306f\u305d\u306e\u9006\u3092 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/baremetal.jp\/blog\/wp-json\/wp\/v2\/posts\/1298"}],"collection":[{"href":"https:\/\/baremetal.jp\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/baremetal.jp\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/baremetal.jp\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/baremetal.jp\/blog\/wp-json\/wp\/v2\/comments?post=1298"}],"version-history":[{"count":8,"href":"https:\/\/baremetal.jp\/blog\/wp-json\/wp\/v2\/posts\/1298\/revisions"}],"predecessor-version":[{"id":1311,"href":"https:\/\/baremetal.jp\/blog\/wp-json\/wp\/v2\/posts\/1298\/revisions\/1311"}],"wp:attachment":[{"href":"https:\/\/baremetal.jp\/blog\/wp-json\/wp\/v2\/media?parent=1298"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/baremetal.jp\/blog\/wp-json\/wp\/v2\/categories?post=1298"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/baremetal.jp\/blog\/wp-json\/wp\/v2\/tags?post=1298"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}