{"id":17390,"date":"2023-08-10T03:37:06","date_gmt":"2023-08-10T03:37:06","guid":{"rendered":"https:\/\/www.rapidseedbox.com\/?p=17390"},"modified":"2026-06-22T10:55:57","modified_gmt":"2026-06-22T10:55:57","slug":"cgnat","status":"publish","type":"post","link":"https:\/\/www.rapidseedbox.com\/ja\/blog\/cgnat","title":{"rendered":"CGNAT: The Workaround to IPv4 Depletion [2026]"},"content":{"rendered":"<figure class=\"wp-block-audio\"><audio controls src=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/Ren-Reads-CGNAT-Guide.mp3\"><\/audio><figcaption class=\"wp-element-caption\"><em><strong>\u97f3\u58f0\u7248\uff08\u203b\u82f1\u8a9e\u3067\u3059\u3002\u518d\u751f\u30dc\u30bf\u30f3\u3092\u62bc\u3057\u3066\u8a18\u4e8b\u3092\u30b7\u30fc\u30e0\u30ec\u30b9\u306b\u30b9\u30af\u30ed\u30fc\u30eb \u25b6\ufe0f\ud83c\udfb6\uff09<\/strong><\/em><\/figcaption><\/figure>\n\n\n\n<p>\u30ad\u30e3\u30ea\u30a2\u30b0\u30ec\u30fc\u30c9NAT\uff08CGNAT\uff09\u306f\u3001ISP\u304c\u9650\u3089\u308c\u305f\u6570\u306e\u30d1\u30d6\u30ea\u30c3\u30afIP\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u7528\u3057\u3066\u3001\u591a\u6570\u306e\u9867\u5ba2\u306b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30a2\u30af\u30bb\u30b9\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u3092\u53ef\u80fd\u306b\u3059\u308b\u3002\u3053\u308c\u306f\u3001IPv4\u30a2\u30c9\u30ec\u30b9\u306e\u67af\u6e07\u554f\u984c\u306b\u5bfe\u3059\u308b\u300c\u4e00\u6642\u7684\u300d\u306a\u89e3\u6c7a\u7b56\u3067\u3042\u308a\u3001IPv4\u30a2\u30c9\u30ec\u30b9\u304c\u67af\u6e07\u3057\u305f\u6642\u70b9\u3067\u5b8c\u5168\u306b\u5ec3\u6b62\u3055\u308c\u308b\u4e88\u5b9a\u3067\u3042\u308b\u3002 <a href=\"https:\/\/www.rapidseedbox.com\/ja\/ipv4-rental\/?blog=cgnat\" target=\"_blank\" rel=\"noreferrer noopener\">IPv6\u306f\u5e83\u304f\u63a1\u7528\u3055\u308c\u3066\u3044\u308b<\/a>. <\/p>\n\n\n\n<p>CGNAT\u306fISP\u306b\u3068\u3063\u3066\u7d20\u6674\u3089\u3057\u3044\u5229\u70b9\u304c\u3042\u308a\u307e\u3059\u3002\u30d1\u30d6\u30ea\u30c3\u30afIPv4\u30a2\u30c9\u30ec\u30b9\u306e\u30b3\u30b9\u30c8\u3092\u524a\u6e1b\u3057\u3001IP\u30d7\u30fc\u30eb\u3092\u4fdd\u8b77\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6b8b\u5ff5\u306a\u304c\u3089\u3001CGNAT\u306b\u306f\u8003\u616e\u3059\u3079\u304d\u6b20\u70b9\u304c\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u3002&nbsp;<\/p>\n\n\n\n<p><em><strong>\u3053\u306e\u30d6\u30ed\u30b0\u8a18\u4e8b\u3067\u306f\u3001CGNAT\u306e\u57fa\u672c\u3001\u5229\u70b9\u3068\u6b20\u70b9\u3001CGNAT\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002\u307e\u305f\u3001CGNAT\u306e\u4ee3\u66ff\u6848\u3068\u56de\u907f\u7b56\u306b\u3064\u3044\u3066\u3082\u8aac\u660e\u3057\u307e\u3059\u3002<\/strong><\/em><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/cgnat-1.png\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"532\" src=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/cgnat-1-1024x532.png\" alt=\"\u30b7\u30b0\u30ca\u30c3\u30c8\" class=\"wp-image-26944\" srcset=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/cgnat-1-1024x532.png 1024w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/cgnat-1-300x156.png 300w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/cgnat-1-18x9.png 18w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/cgnat-1.png 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<p><strong><em>\u514d\u8cac\u4e8b\u9805\uff1a&nbsp;<\/em><\/strong><em>\u672c\u8cc7\u6599\u306f\u3001\u60c5\u5831\u63d0\u4f9b\u306e\u307f\u3092\u76ee\u7684\u3068\u3057\u3066\u4f5c\u6210\u3055\u308c\u305f\u3082\u306e\u3067\u3059\u3002\u3044\u304b\u306a\u308b\u6d3b\u52d5\uff08\u9055\u6cd5\u884c\u70ba\u3092\u542b\u3080\uff09\u3001\u88fd\u54c1\u3001\u30b5\u30fc\u30d3\u30b9\u3092\u63a8\u5968\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5f53\u793e\u306e\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3059\u308b\u5834\u5408\u3001\u307e\u305f\u306f\u3053\u3053\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u60c5\u5831\u306b\u4f9d\u62e0\u3059\u308b\u5834\u5408\u306f\u3001\u77e5\u7684\u8ca1\u7523\u6a29\u6cd5\u3092\u542b\u3080\u9069\u7528\u6cd5\u3092\u9075\u5b88\u3059\u308b\u8cac\u4efb\u3092\u8ca0\u3046\u3082\u306e\u3068\u3057\u307e\u3059\u3002\u5f53\u793e\u306f\u3001\u6cd5\u5f8b\u3067\u660e\u793a\u7684\u306b\u7fa9\u52d9\u4ed8\u3051\u3089\u308c\u3066\u3044\u308b\u5834\u5408\u3092\u9664\u304d\u3001\u3044\u304b\u306a\u308b\u65b9\u6cd5\u3067\u3042\u308c\u3001\u5f53\u793e\u306e\u30b5\u30fc\u30d3\u30b9\u307e\u305f\u306f\u3053\u3053\u306b\u542b\u307e\u308c\u308b\u60c5\u5831\u306e\u4f7f\u7528\u304b\u3089\u751f\u3058\u308b\u640d\u5bb3\u306b\u3064\u3044\u3066\u4e00\u5207\u306e\u8cac\u4efb\u3092\u8ca0\u3044\u307e\u305b\u3093\u3002<\/em><\/p>\n\n\n\n<div style=\"height:16px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u76ee\u6b21&nbsp;<\/h2>\n\n\n\n<ol>\n<li><a href=\"#01\">IPv4\u306e\u67af\u6e07\uff1a\u901a\u4fe1\u4e8b\u696d\u8005\u306e\u554f\u984c<\/a><\/li>\n\n\n\n<li><a href=\"#02\">CGNAT\u306e\u7d39\u4ecb\u3002<\/a>\n<ol>\n<li>NAT 101<\/li>\n\n\n\n<li>CGNAT 101&nbsp;<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li><a href=\"#03\">CGNAT\u306e\u30e1\u30ea\u30c3\u30c8\u3002<\/a><\/li>\n\n\n\n<li><a href=\"#04\">CGNAT\u306e\u6b20\u70b9\u3002 <\/a><\/li>\n\n\n\n<li><a href=\"#05\">CGNAT\u306e\u4ee3\u66ff\u6848\u3068\u56de\u907f\u7b56\u3002<\/a>\n<ol>\n<li>\u30ad\u30e3\u30ea\u30a2\uff08\u304a\u3088\u3073ISP\uff09\u306e\u305f\u3081\u306eCGNAT\u4ee3\u66ff\u6848\u3002&nbsp;<\/li>\n\n\n\n<li>\u30a8\u30f3\u30c9\u30e6\u30fc\u30b6\u30fc\u306e\u305f\u3081\u306eCGNAT\u300c\u56de\u907f\u7b56\u300d\u3002<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li><a href=\"#06\">\u3042\u306a\u305f\u304c\uff08\u30db\u30fc\u30e0\u30e6\u30fc\u30b6\u30fc\u3068\u3057\u3066\uff09CGNAT\u306e\u80cc\u5f8c\u306b\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3059\u308b\u3002&nbsp;<\/a><\/li>\n\n\n\n<li><a href=\"#07\">\u3088\u304f\u3042\u308b\u8cea\u554f\uff08FAQ\uff09<\/a><\/li>\n\n\n\n<li><a href=\"#08\">\u307e\u3068\u3081&nbsp;<\/a><\/li>\n<\/ol>\n\n\n\n<div style=\"height:17px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"01\">1.IPv4\u306e\u67af\u6e07\uff1a\u901a\u4fe1\u4e8b\u696d\u8005\u306e\u554f\u984c<\/h2>\n\n\n\n<p>IPv4\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u4e3b\u6d41\u306e\u63a5\u7d9a\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3042\u308b\u3002IPv4\u30a2\u30c9\u30ec\u30b9\u306f\u5168\u90e8\u30674,294,967,296\u500b\u3042\u308a\u30011980\u5e74\u4ee3\u306bIPv4\u304c\u8a95\u751f\u3057\u305f\u5f53\u521d\u306f\u5341\u5206\u306a\u6570\u306b\u601d\u3048\u305f\u3002\u3057\u304b\u3057\u3001\u305d\u306e\u5f8c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306f\u4e88\u60f3\u5916\u306b\u5de8\u5927\u5316\u3057\u305f\u3002 <\/p>\n\n\n\n<p><strong>\u3053\u306e\u3088\u3046\u306a\u6210\u9577\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001IPv4\u30a2\u30c9\u30ec\u30b9\u306e\u67af\u6e07\u3092\u9632\u3050\u305f\u3081\u306b\u3001CIDR\u3084\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30a2\u30c9\u30ec\u30b9(<a href=\"https:\/\/datatracker.ietf.org\/doc\/html\/rfc1918\" target=\"_blank\" rel=\"noreferrer noopener\">RFC1918<\/a>)\u3001NAT\u3001 <a href=\"https:\/\/www.rapidseedbox.com\/blog\/ipv6-adoption-trends\" target=\"_blank\" rel=\"noreferrer noopener\">IPv6\u306e\u63a1\u7528<\/a>\u306a\u3069\u306a\u3069\u3002&nbsp;<\/strong><\/p>\n\n\n\n<p>\u3053\u3046\u3057\u305f\u53d6\u308a\u7d44\u307f\u306f\u3057\u3070\u3089\u304f\u306e\u9593\u6a5f\u80fd\u3057\u305f\u304c\u3001\u6b63\u5f0f\u306aIPv4\u306f\u3059\u3067\u306b\u7d42\u4e86\u3057\u3066\u3044\u308b\u3002\u305d\u306e <a href=\"https:\/\/www.iana.org\/\" target=\"_blank\" rel=\"noreferrer noopener\">IANA<\/a> (IPv4\u30a2\u30c9\u30ec\u30b9\u3092\u7ba1\u7406\u3059\u308b\u4e16\u754c\u7684\u306a\u7d44\u7e54\uff09\u306f\u3059\u3067\u306bIPv4\u30d7\u30fc\u30eb\u3092\u4f7f\u3044\u679c\u305f\u3057\u305f\u305f\u3081\u3001RIR\uff08\u5730\u57df\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30ec\u30b8\u30b9\u30c8\u30ea\uff09\u3060\u3051\u304c\u65b0\u3057\u3044IPv4\u3092\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u305d\u3057\u3066\u73fe\u5728\u3001\u307e\u3060\u6570\u5c11\u306a\u3044RIR\u3060\u3051\u304cIPv4\u30a2\u30c9\u30ec\u30b9\u3092\u30d7\u30fc\u30eb\u3057\u3066\u3044\u308b\u304c\u3001\u3059\u3067\u306bIPv4\u306e\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u3092\u958b\u59cb\u3057\u3066\u3044\u308b\u3002\u3055\u3089\u306b\u3001\u30a4\u30f3\u30c9\u3084\u4e2d\u56fd\u306e\u3088\u3046\u306b\u3001\u3059\u3067\u306bIPv4\u30a2\u30c9\u30ec\u30b9\u4e0d\u8db3\u306b\u76f4\u9762\u3057\u3066\u3044\u308b\u56fd\u3082\u3042\u308b\u3002 <\/p>\n\n\n\n<p>To address these challenges, the long-term and only solution is a <a href=\"https:\/\/www.rapidseedbox.com\/blog\/ipv6-transition-mechanisms\" target=\"_blank\" rel=\"noreferrer noopener\">full migration to IPv6<\/a>. Although IPv6 is already being used in some countries, full-scale adoption is taking a long time for various reasons.<\/p>\n\n\n\n<p><strong>\u5168\u984d\u514d\u9664 <a href=\"https:\/\/www.rapidseedbox.com\/blog\/ipv6-migration-planning\" target=\"_blank\" rel=\"noreferrer noopener\">IPv6\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3<\/a> \u305d\u3057\u3066 <strong>\u53e4\u304d\u826f\u304dNAT\u304c\u63d0\u4f9b\u3059\u308b\u81a8\u5927\u306aIPv4\u7a7a\u304d\u9818\u57df<\/strong><\/strong>,<strong> \u901a\u4fe1\u30ad\u30e3\u30ea\u30a2\u3084\u30b5\u30fc\u30d3\u30b9\u30fb\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u3067\u3088\u308a\u5927\u898f\u6a21\u306a\u30c0\u30d6\u30ebNAT\u3092\u5c0e\u5165\u3057\u59cb\u3081\u3066\u3044\u308b\u3002 <\/strong><\/p>\n\n\n\n<p>\u3053\u306e\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u306f\u30ad\u30e3\u30ea\u30a2\u30b0\u30ec\u30fc\u30c9NAT\uff08CGNAT\uff09\u3068\u3057\u3066\u77e5\u3089\u308c\u3066\u3044\u308b\u3002&nbsp;<\/p>\n\n\n\n<div style=\"height:17px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"02\">2.CGNAT\u306e\u7d39\u4ecb\u3002&nbsp;<\/h2>\n\n\n\n<p>\u30ad\u30e3\u30ea\u30a2\u30b0\u30ec\u30fc\u30c9NAT\uff08CGN\u307e\u305f\u306fCG-NAT\uff09\u306f2014\u5e74\u9803\u304b\u3089\u30e2\u30d0\u30a4\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e8b\u696d\u8005\u306b\u3088\u3063\u3066\u591a\u7528\u3055\u308c\u59cb\u3081\u305f\u3002\u3053\u308c\u3089\u306e\u4e8b\u696d\u8005\u306f\u3001\u30e2\u30d0\u30a4\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u304a\u3051\u308bIPv4\u30a2\u30c9\u30ec\u30b9\u306e\u9700\u8981\u304c\u6025\u5897\u3059\u308b\u306e\u3092\u898b\u3066\u3001\u3059\u3050\u306b\u30c0\u30d6\u30ebNAT-CGNAT\u306b\u983c\u3063\u305f\u3002&nbsp;<\/p>\n\n\n\n<p>\u30ad\u30e3\u30ea\u30a2\u30b0\u30ec\u30fc\u30c9NAT\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u306f\u3001NAT\uff08\u306e\u4e0b\u4f4d\u30d0\u30fc\u30b8\u30e7\u30f3\uff09\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u4e0d\u53ef\u6b20\u3060\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">a.NAT 101<\/h3>\n\n\n\n<p><em><strong>\u6ce8<\/strong>:NAT\u306e\u57fa\u672c\u3092\u3059\u3067\u306b\u77e5\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u306b\u30b9\u30ad\u30c3\u30d7\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/em><\/p>\n\n\n\n<p><strong>NAT\u306f\u3001\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8LAN\u4e0a\u306e\u8907\u6570\u306e\u30c7\u30d0\u30a4\u30b9\u304c\u3001\u30d1\u30d6\u30ea\u30c3\u30af\u901a\u4fe1\u7528\u306e\u5358\u4e00\u306e\u30d1\u30d6\u30ea\u30c3\u30afIP\u30a2\u30c9\u30ec\u30b9\u3092\u5171\u6709\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c4\u30fc\u30eb\u3067\u3042\u308b\u3002<\/strong> \u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30c9\u30e1\u30a4\u30f3\u3068\u30d1\u30d6\u30ea\u30c3\u30af\u30c9\u30e1\u30a4\u30f3\u306e\u9593\u3067IP\u30a2\u30c9\u30ec\u30b9\u3068\u30dd\u30fc\u30c8\u3092\u5909\u63db\u3059\u308b\u4ef2\u4ecb\u306e\u5f79\u5272\u3092\u679c\u305f\u3059\u3002NAT\u306f\u3001IPv4\u306e\u53ef\u7528\u6027\u306b\u5236\u9650\u304c\u3042\u308b\u5834\u5408\u306b\u4e00\u6642\u7684\u306b\u5bfe\u51e6\u3059\u308b\u305f\u3081\u306e\u5b8c\u74a7\u306a\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3067\u3059\u3002 <\/p>\n\n\n\n<h4 class=\"wp-block-heading\">NAT\u306e\u4ed5\u7d44\u307f\u4e0b\u306e\u56f3\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002&nbsp;<\/h4>\n\n\n\n<ol>\n<li>\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\uff0810.0.0.1\uff09\u3092\u6301\u3064\u300c\u30db\u30b9\u30c8\u300d\u304c\u3001\u30d1\u30d6\u30ea\u30c3\u30afIP\u30a2\u30c9\u30ec\u30b9200.100.10.1\u3092\u6301\u3064\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u5916\u90e8\u300c\u30b5\u30fc\u30d0\u30fc\u300d\u3068\u901a\u4fe1\u3057\u305f\u3044\u3002&nbsp;<\/li>\n\n\n\n<li><strong>\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u958b\u59cb\u3059\u308b\u3002<\/strong> \u30db\u30b9\u30c8\u300d\u306f\u3001\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u3068\u30d1\u30d6\u30ea\u30c3\u30af\u306e\u4e21\u65b9\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\uff08\u30dd\u30fc\u30c8\uff09\u3092\u6301\u3064\u30eb\u30fc\u30bf\u30fc\uff0bNAT\u3092\u4ecb\u3057\u3066\u3001\u5916\u90e8\u306e\u300c\u30b5\u30fc\u30d0\u30fc\u300d\u3068\u901a\u4fe1\u3092\u958b\u59cb\u3059\u308b\u3002\u30eb\u30fc\u30bf\u30fc\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30fb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30fb\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306f\u540c\u305810.0.0.0 \/8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306b\u3042\u308a\u3001\u305d\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u306f\u30d1\u30d6\u30ea\u30c3\u30afIP\uff08150.150.0.1\uff09\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3002\u30eb\u30fc\u30bf\u30fc\uff0bNAT\u30b5\u30fc\u30d0\u30fc\u304c\u30d1\u30b1\u30c3\u30c8\u3092\u53d7\u4fe1\u3059\u308b\u3068\u3001NAT\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4f7f\u7528\u3057\u3066\u3001\u5b9b\u5148IP\u30a2\u30c9\u30ec\u30b9\u3092\u305d\u306e\u307e\u307e\u306b\u3001\u5185\u90e8\/\u30bd\u30fc\u30b9IP 10.0.0.1\u3092\u5916\u90e8\/\u30bd\u30fc\u30b9IP\uff08150.150.0.1\uff09\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3057\u307e\u3059\u3002&nbsp;<\/li>\n\n\n\n<li><strong>\u5fdc\u7b54\u3092\u53d7\u3051\u53d6\u308b\u3002<\/strong> \u5916\u90e8\u306e\u300c\u30b5\u30fc\u30d0\u30fc\u300d\u304c\u30d1\u30b1\u30c3\u30c8\u3092\u53d7\u4fe1\u3059\u308b\u3068\u3001\u5185\u90e8\u306e10.0.01\u3067\u306f\u306a\u304f\u3001\u30eb\u30fc\u30bf\u30fc\u306eIP\uff08150.150.0.1\uff09\u306b\u5fdc\u7b54\u3059\u308b\uff08\u300c\u30b5\u30fc\u30d0\u30fc\u300d\u306f\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u3064\u3044\u3066\u77e5\u3089\u306a\u3044\u305f\u3081\uff09\u3002\u30eb\u30fc\u30bf\u30fc\uff0bNAT\u30b5\u30fc\u30d0\u30fc\u304c\u5916\u90e8\/\u5b9b\u5148IP\uff08150.150.0.1\uff09\u3067\u30d1\u30b1\u30c3\u30c8\u3092\u53d7\u4fe1\u3059\u308b\u3068\u3001\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9\u306f\u305d\u306e\u307e\u307e\u306b\u3001\u5185\u90e8\/\u5b9b\u5148IP\u306e10.0.0.1\u306b\u518d\u5ea6\u30de\u30c3\u30d4\u30f3\u30b0\u3059\u308b\u3002&nbsp;<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_07.png\"><img decoding=\"async\" loading=\"lazy\" width=\"982\" height=\"532\" src=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_07.png\" alt=\"NAT\u306e\u4ed5\u7d44\u307f\" class=\"wp-image-17398\" srcset=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_07.png 982w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_07-300x163.png 300w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_07-18x10.png 18w\" sizes=\"(max-width: 982px) 100vw, 982px\" \/><\/a><figcaption class=\"wp-element-caption\"><em>\u5199\u771f\u63d0\u4f9b\uff1aWikipedia Public Domain<\/em><\/figcaption><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">NAT\u306e\u5229\u70b9\u3068\u6b20\u70b9\u3092\u3044\u304f\u3064\u304b\u6319\u3052\u308b\u3002<\/h4>\n\n\n\n<p>\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u306e\u5192\u982d\u3067\u8ff0\u3079\u305f\u3088\u3046\u306b\u3001NAT\u306f\uff08\u4f7f\u7528\u3059\u308bIP\u30a2\u30c9\u30ec\u30b9\u30af\u30e9\u30b9\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u304c\uff09\u6570\u5343\u304b\u3089\u6570\u767e\u4e07\u306eIPv4\u3092\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u3067\u4f7f\u7528\u3059\u308b\u3053\u3068\u3092\u53ef\u80fd\u306b\u3059\u308b\u3002NAT\u306f\u307e\u305f\u3001\u305d\u306e\u7d99\u627f\u3055\u308c\u305f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u305f\u3081\u306b\u3001\u5e38\u306b\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08\u5bb6\u5ead\u304b\u3089\u4e2d\u5c0f\u4f01\u696d\u307e\u3067\uff09\u3067\u4f7f\u7528\u3055\u308c\u3066\u304d\u307e\u3057\u305f\u3002\u3055\u3089\u306b\u3001NAT\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7ba1\u7406\u8005\u3084\u9867\u5ba2\u304c\u3001\u5185\u90e8\u30c7\u30d0\u30a4\u30b9\u304c\u5916\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u65b9\u6cd5\u3092\u3001\u3088\u308a\u5236\u5fa1\u3057\u3084\u3059\u304f\u30b7\u30f3\u30d7\u30eb\u306b\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002&nbsp;<\/p>\n\n\n\n<p><strong>\u901a\u4fe1\u30ad\u30e3\u30ea\u30a2\u3084\u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306b\u3068\u3063\u3066\u306eNAT\u306e\u6b20\u70b9\u306f\u3001IPv4\u3092\u7bc0\u7d04\u3067\u304d\u306a\u3044\u3068\u3044\u3046\u975e\u52b9\u7387\u6027\u3067\u3042\u308b\u3002<\/strong> \u3059\u3079\u3066\u306e\u9867\u5ba2\u306b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30fb\u30b5\u30fc\u30d3\u30b9\u3092\u63d0\u4f9b\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u5404\u9867\u5ba2\u8a2d\u5099\u6a5f\u5668\uff08CPE\uff09\u306e\u5916\u90e8\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u4e00\u610f\u306e\u30d1\u30d6\u30ea\u30c3\u30afIPv4\u30a2\u30c9\u30ec\u30b9\u3092\u5272\u308a\u5f53\u3066\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<\/p>\n\n\n\n<p><strong>IPv4\u306e\u67af\u6e07\u554f\u984c\u3092\u56de\u907f\u3057\u3001\u3088\u308a\u591a\u304f\u306e\u4eba\u53e3\u306b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3092\u63d0\u4f9b\u3059\u308b\u305f\u3081\u306b\u3001\u5f7c\u3089\u306fCGNAT\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u306b\u5fa9\u5143\u3057\u305f\u3002<\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">b.CGNAT 101&nbsp;<\/h3>\n\n\n\n<p>\u524d\u8ff0\u3057\u305f\u3088\u3046\u306b\u3001CGNAT\u306f\u5927\u898f\u6a21NAT\u3092\u63d0\u4f9b\u3059\u308bIPv4\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u306e\u4e00\u7a2e\u3067\u3042\u308b\u3002\u5b9f\u969b\u3001\u5927\u898f\u6a21\u30b9\u30b1\u30fc\u30e9\u30d6\u30ebNAT\u307e\u305f\u306f\u5927\u898f\u6a21NAT\uff08LSN\uff09\u3068\u3082\u547c\u3070\u308c\u308b\u3002\u30ad\u30e3\u30ea\u30a2\u306fCGNAT\u3092\u4f7f\u7528\u3057\u3066\u3001\u8907\u6570\u306e\u901a\u4fe1\u30a8\u30f3\u30c9\u30dd\u30a4\u30f3\u30c8\uff08CPE\uff09\u3092\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IPv4\u30a2\u30c9\u30ec\u30b9\u3067\u69cb\u6210\u3057\u30011\u3064\uff08\u307e\u305f\u306f\u3044\u304f\u3064\u304b\uff09\u306e\u5171\u6709\u30d1\u30d6\u30ea\u30c3\u30afIPv4\u306e\u4e0b\u3067\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u63a5\u7d9a\u3057\u307e\u3059\u3002 <\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>CGNAT\u306e\u4ed5\u7d44\u307f&nbsp;<\/strong><\/h4>\n\n\n\n<p>CGNAT\u306f\uff08\u3044\u304f\u3064\u304b\u306e\u4f8b\u5916\u3092\u9664\u3044\u3066\uff09\u5f93\u6765\u306eNAT\u306e\u3088\u3046\u306b\u52d5\u4f5c\u3059\u308b\u3002\u901a\u5e38\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u304b\u3089\u30d1\u30d6\u30ea\u30c3\u30af\u3078\u306e\u5909\u63db\uff08\u304a\u3088\u3073\u305d\u306e\u9006\uff09\u306b\u5f93\u3044\u307e\u3059\u304c\u3001\u6700\u5927\u306e\u9055\u3044\u306f\u3001CGNAT\u304c\u3088\u308a\u5927\u898f\u6a21\u306a\u6570\u306e\u30c7\u30d0\u30a4\u30b9\u306b\u5bfe\u3057\u3066\u30c0\u30d6\u30ebNAT\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u3067\u3059\u3002&nbsp;<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>\u3088\u308a\u660e\u78ba\u306b\u3059\u308b\u305f\u3081\u306b\u3001\u4e0b\u306e\u56f3\u3092\u53c2\u7167\u3057\u3066\u307f\u3088\u3046\u3002&nbsp;<\/strong><\/h4>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_02.png\"><img decoding=\"async\" loading=\"lazy\" width=\"982\" height=\"533\" src=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_02.png\" alt=\"CGNAT\u306e\u4ed5\u7d44\u307f\" class=\"wp-image-17393\" srcset=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_02.png 982w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_02-300x163.png 300w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_02-18x10.png 18w\" sizes=\"(max-width: 982px) 100vw, 982px\" \/><\/a><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>(1) \u304a\u5ba2\u69d8\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30fb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af <\/strong><\/h4>\n\n\n\n<p>\u9867\u5ba21\u3001\u9867\u5ba22\u3001\u9867\u5ba23\u306f\u3001\u305d\u308c\u305e\u308c\u72ec\u81ea\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IPv4\u30cd\u30c3\u30c8\u30ef\u30fc\u30af( <a href=\"https:\/\/datatracker.ietf.org\/doc\/html\/rfc1918\">RFC1918<\/a>).\u5404\u9867\u5ba2\u306f\u81ea\u5b85\u306b\u56fa\u6709\u306eCPE\uff08Customer Premises Equipment\uff09\u3092\u6301\u3063\u3066\u304a\u308a\u3001\u3053\u308c\u304c\u6700\u521d\u306eNAT\u3092\u5b9f\u884c\u3059\u308b\u3002\u3053\u306eNAT\u30d7\u30ed\u30bb\u30b9\u306f <a href=\"https:\/\/datatracker.ietf.org\/doc\/html\/rfc1918\">RFC1918<\/a> \u9867\u5ba2\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u306f\u3001\u30ad\u30e3\u30ea\u30a2\u30b0\u30ec\u30fc\u30c9NAT\uff08CGN\uff09\u7528\u306b\u6307\u5b9a\u3055\u308c\u305f\u4e88\u7d04IP\u30a2\u30c9\u30ec\u30b9\u7a7a\u9593\u3078\u3002\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u3067\u306f\u3001\u5404\u30e6\u30fc\u30b6\u30fc\u306eCPE\u306b\u30dd\u30fc\u30c8\u5272\u308a\u5f53\u3066\u3068\u3057\u3066\u77e5\u3089\u308c\u308b\u56fa\u6709\u306e\u30dd\u30fc\u30c8\u756a\u53f7\u304c\u5272\u308a\u5f53\u3066\u3089\u308c\u307e\u3059\u3002\u3053\u306e\u30dd\u30fc\u30c8\u5272\u308a\u5f53\u3066\u306f\u3001\u540c\u3058\u30d1\u30d6\u30ea\u30c3\u30afIP\u30a2\u30c9\u30ec\u30b9\u3092\u5171\u6709\u3059\u308b\u7570\u306a\u308b\u30e6\u30fc\u30b6\u30fc\u3092\u533a\u5225\u3057\u3001\u500b\u3005\u306e\u901a\u4fe1\u3092\u7ba1\u7406\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>(2) \u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff1a\u5b9f\u969b\u306eCGNAT<\/strong><\/h4>\n\n\n\n<p>CPE \u306f\u9001\u4fe1\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092 CGNAT \u30b5\u30fc\u30d0\u30fc\u306e\u3042\u308b ISP \u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u8ee2\u9001\u3059\u308b\u3002CGNAT \u306f\u4e88\u7d04\u3055\u308c\u305f IP \u30a2\u30c9\u30ec\u30b9\u7a7a\u9593 (<a href=\"https:\/\/www.rfc-editor.org\/rfc\/rfc6598.html\" target=\"_blank\" rel=\"noreferrer noopener\">RFC6598<\/a>) 100.64.0.0\/10.CGNAT \u306f\u3001\u767a\u4fe1\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30bd\u30fc\u30b9 IP \u3068\u30dd\u30fc\u30c8\u3092\u3001\u30d7\u30fc\u30eb\u304b\u3089\u306e\u30d1\u30d6\u30ea\u30c3\u30af IP \u3068\u30dd\u30fc\u30c8\u306b\u7f6e\u304d\u63db\u3048\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u540c\u3058\u30d1\u30d6\u30ea\u30c3\u30afIP\u30a2\u30c9\u30ec\u30b9\u3092\u5171\u6709\u3059\u308b\u8907\u6570\u306e\u30e6\u30fc\u30b6\u30fc\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u9069\u5207\u306b\u8b58\u5225\u3055\u308c\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3055\u308c\u308b\u3088\u3046\u306b\u3001CGNAT\u306f\u5404CPE\u306b\u4e00\u610f\u306e\u30dd\u30fc\u30c8\u756a\u53f7\u3092\u5272\u308a\u5f53\u3066\u307e\u3059\u3002<\/p>\n\n\n\n<p><strong><em>\u6ce8\u610f1\uff1a<\/em><\/strong><em> \u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f\u300c100.64.0.0\/10\u300d\u30d6\u30ed\u30c3\u30af\uff082012\u5e74\u306bIANA\u306b\u3088\u3063\u3066\u5272\u308a\u5f53\u3066\u3089\u308c\u305f\uff09\u3092\u4f7f\u7528\u3059\u308b\u3002\u3053\u306e\u30d6\u30ed\u30c3\u30af\u306fCGNAT\u30b7\u30ca\u30ea\u30aa\u306e\u305f\u3081\u306b\u660e\u793a\u7684\u306b\u4e88\u7d04\u3055\u308c\u3066\u304a\u308a\u3001\u30d1\u30d6\u30ea\u30c3\u30af\u30fb\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u30b0\u30ed\u30fc\u30d0\u30eb\u306b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u53ef\u80fd\u3067\u3042\u308b\u3053\u3068\u306f\u610f\u56f3\u3055\u308c\u3066\u304a\u3089\u305a\u3001\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30fb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7528\u3067\u3082\u3042\u308a\u307e\u305b\u3093\u3002\u4ee3\u308f\u308a\u306b\u3001\u7d14\u7c8b\u306b\u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306e\u30a4\u30f3\u30d5\u30e9\u5185\u3067\u306e\u4f7f\u7528\u3092\u76ee\u7684\u3068\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30d6\u30ed\u30c3\u30af\u306fIP\u30a2\u30c9\u30ec\u30b9\u306e\u7af6\u5408\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3001IPv6\u3078\u306e\u79fb\u884c\u3092\u652f\u63f4\u3057\u307e\u3059\u3002<\/em><\/p>\n\n\n\n<p><strong><em>\u6ce8\u610f2\uff1a<\/em><\/strong><em> CGNAT\u306f\u30b9\u30c6\u30fc\u30c8\u30d5\u30eb\u3067\u3042\u308b\u3053\u3068\u306b\u6ce8\u610f\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3042\u308b\u3002\u3064\u307e\u308a\u3001CGNAT\u30eb\u30fc\u30bf\u30fc\u306f\u3001\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u3068\u30d1\u30d6\u30ea\u30c3\u30afIP\u30a2\u30c9\u30ec\u30b9\u9593\u306e\u5909\u63db\u3068\u3068\u3082\u306b\u3001\u5404\u63a5\u7d9a\u306e\u72b6\u614b\u60c5\u5831\u3092\u6301\u3064\u30de\u30c3\u30d4\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u3092\u7dad\u6301\u3059\u308b\u3002 &nbsp;&nbsp;&nbsp;<\/em><\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>(3) \u30d1\u30d6\u30ea\u30c3\u30afIP\u30a2\u30c9\u30ec\u30b9\u3002<\/strong><\/h4>\n\n\n\n<p>\u30d7\u30ed\u30d0\u30a4\u30c0\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30fb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08RFC6598\u307e\u305f\u306f100.64.0.0\/10\uff09\u306f\u3001\u30d1\u30d6\u30ea\u30c3\u30af\u30fb\u30a2\u30c9\u30ec\u30b9203.0.113.1\u306b\u5909\u63db\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u3057\u3066\u3001\u8907\u6570\u306e\u9867\u5ba2\u304c\u3053\u306eIP\u307e\u305f\u306f\u9650\u3089\u308c\u305f\u6570\u306e\u30d1\u30d6\u30ea\u30c3\u30afIP\u30a2\u30c9\u30ec\u30b9\u3092\u5171\u6709\u3057\u307e\u3059\u3002\u3053\u306e\u4f8b\u3067\u306f\u3001\u30d1\u30d6\u30ea\u30c3\u30af\u30fb\u30a2\u30c9\u30ec\u30b9203.0.113.1\u306f\u3001\u8aac\u660e\u3068\u6587\u66f8\u5316\u306e\u76ee\u7684\u3067\u4f7f\u7528\u3055\u308c\u308b\u30a2\u30c9\u30ec\u30b9\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"03\">3.CGNAT\u306e\u30e1\u30ea\u30c3\u30c8&nbsp;<\/h2>\n\n\n\n<p>CGNAT\u306f\u3001IPv4\u306e\u67af\u6e07\u3068\u3044\u3046\u75db\u624b\u306b\u5bfe\u3059\u308b\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u767b\u5834\u3057\u305f\u3002CGNAT\u306f\u305d\u308c\u81ea\u4f53\u3001\u901a\u4fe1\u30ad\u30e3\u30ea\u30a2\u3084ISP\u306b\u3068\u3063\u3066\uff08IPv6\u3092\u53d7\u3051\u5165\u308c\u308b\u9593\u306f\uff09\u5927\u304d\u306a\u5229\u70b9\u3068\u306a\u308a\u5f97\u308b\u304c\u3001\u9577\u671f\u7684\u306a\u89e3\u6c7a\u7b56\u306b\u306f\u306a\u3089\u306a\u3044\u3002 <\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>a.IPv4\u4e0d\u8db3\u3078\u306e\u5bfe\u5fdc\u3002<\/strong><\/h4>\n\n\n\n<p>CGNAT\u306f\u3001IPv4\u30a2\u30c9\u30ec\u30b9\u306e\u4e0d\u8db3\u3068\u3044\u3046\u8ab2\u984c\u306b\u53d6\u308a\u7d44\u3080\u305f\u3081\u306e\u9769\u65b0\u7684\u306a\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3067\u3042\u308b\u3002\u3053\u306e\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u306e\u80cc\u5f8c\u306b\u3042\u308b\u30a2\u30a4\u30c7\u30a2\u306f\u3001\u8907\u6570\u306e\u30e6\u30fc\u30b6\u30fc\uff08\u5358\u4e00\u306e\u5c45\u4f4f\u5730\u3084\u5efa\u7269\u304b\u3089\u3067\u306f\u306a\u304f\u3001\u5730\u57df\u5168\u4f53\uff09\u304c\u3088\u308a\u5c11\u306a\u3044\u30d1\u30d6\u30ea\u30c3\u30af\u30a2\u30c9\u30ec\u30b9\u306e\u30bb\u30c3\u30c8\u3092\u5171\u6709\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u80fd\u529b\u306b\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u306b\u3088\u308a\u3001ISP\u3084\u901a\u4fe1\u4e8b\u696d\u8005\u306f\u3088\u308a\u591a\u304f\u306e\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u3088\u308a\u5c11\u306a\u3044\u30d1\u30d6\u30ea\u30c3\u30afIP\u3092\u4f7f\u7528\u3057\u3066\u3001\u3088\u308a\u591a\u304f\u306e\u9867\u5ba2\u3092\u53d7\u3051\u5165\u308c\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002CGNAT\u306f\u3001\u4e16\u754c\u304c\u5f90\u3005\u306bIPv6\u306b\u79fb\u884c\u3059\u308b\u9593\u306e\u4e00\u6642\u7684\u306a\u5bfe\u7b56\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>b.\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5f37\u5316<\/strong><\/h4>\n\n\n\n<p>NAT\u3068\u540c\u69d8\u306b\u3001CGNAT\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u306b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u8ffd\u52a0\u30ec\u30a4\u30e4\u30fc\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u3002\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u3092\u30d1\u30d6\u30ea\u30c3\u30afIP\u306b\u5909\u63db\u3059\u308b\u305f\u3081\u3001\u63a5\u7d9a\u3068\u30eb\u30fc\u30bf\u30fc\u306e\u4e21\u65b9\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u5f37\u5316\u3055\u308c\u307e\u3059\u3002\u5185\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c7\u30d0\u30a4\u30b9\u3092\u9694\u96e2\u3057\u3001\u5916\u90e8\u304b\u3089\u306e\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u306b\u5bfe\u3059\u308b\u6291\u6b62\u529b\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002\u7279\u5b9a\u306e\u30d1\u30d6\u30ea\u30c3\u30afIP\u30a2\u30c9\u30ec\u30b9\u3092\u72d9\u3063\u305f\u6f5c\u5728\u7684\u306a\u653b\u6483\u304b\u3089\u304a\u5ba2\u69d8\u306e\u30c7\u30d0\u30a4\u30b9\u3092\u5b88\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>c.\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7ba1\u7406\u3092\u5bb9\u6613\u306b\u3059\u308b\u3002&nbsp;<\/strong><\/h4>\n\n\n\n<p>CGNAT\u306f\u3001ISP\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u3068\u5272\u308a\u5f53\u3066\u306e\u7ba1\u7406\u3092\u7c21\u7d20\u5316\u3057\u307e\u3059\u3002\u5358\u4e00\u306eCGNAT\u306f\u3001\u9867\u5ba2\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30a2\u30c9\u30ec\u30b9\u304b\u3089\u30d1\u30d6\u30ea\u30c3\u30afIP\u306e\u5c0f\u3055\u306a\u30d7\u30fc\u30eb\u3078\u306e\u5909\u63db\u3092\u51e6\u7406\u3057\u307e\u3059\u3002\u3055\u3089\u306b\u3001CGNAT\u306f\u30a2\u30c9\u30ec\u30b9\u5272\u308a\u5f53\u3066\u306e\u7ba1\u7406\u3092\u4e00\u5143\u5316\u3057\u307e\u3059\u3002\u5404\u9867\u5ba2\u306e\u500b\u3005\u306e\u30d1\u30d6\u30ea\u30c3\u30afIP\u3092\u7ba1\u7406\u3059\u308b\u8907\u96d1\u3055\u3092\u8efd\u6e1b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:19px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"04\">4.CGNAT\u306e\u6b20\u70b9\u3002 <\/h2>\n\n\n\n<p>CGNAT\u306b\u306f\u3001\u7279\u306b\u30a8\u30f3\u30c9\u30e6\u30fc\u30b6\u30fc\u3067\u3042\u308b\u9867\u5ba2\u306b\u3068\u3063\u3066\u3001\u5927\u304d\u306a\u6b20\u70b9\u304c\u3042\u308b\u3002&nbsp;<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>a.\u9867\u5ba2\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30fb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u4fe1\u983c\u6027\u306b\u95a2\u3059\u308b\u61f8\u5ff5\u3002<\/strong><\/h4>\n\n\n\n<p>\u4ed6\u306e\u5f62\u614b\u306eNAT\u3068\u540c\u69d8\u306b\u3001CGNAT\u306f\u30a8\u30f3\u30c9\u30fb\u30c4\u30fc\u30fb\u30a8\u30f3\u30c9\u306e\u901a\u4fe1\u539f\u7406\u3092\u7834\u58ca\u3059\u308b\u3002\u3053\u306e\u8ab2\u984c\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u4fe1\u983c\u6027\u306b\u95a2\u3059\u308b\u554f\u984c\u306b\u53d6\u308a\u7d44\u3093\u3067\u3044\u308b\u3002CGNAT\u304c\u63d0\u4f9b\u3059\u308b\u5171\u6709\u74b0\u5883\u306f\u3001\u8907\u6570\u306e\u30e6\u30fc\u30b6\u30fc\u3084\u30c7\u30d0\u30a4\u30b9\u304c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u901a\u4fe1\u306b\u540c\u3058\u30d1\u30d6\u30ea\u30c3\u30afIP\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3092\u610f\u5473\u3059\u308b\u3002\u4e00\u65b9\u3067\u306f\u3001CGNAT\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u7279\u5b9a\u306e\u30c7\u30d0\u30a4\u30b9\u3092\u6a19\u7684\u3068\u3059\u308b\u653b\u6483\u8005\u306b\u5bfe\u3057\u3066\u4e00\u7a2e\u306e\u7159\u5e55\u3092\u4f5c\u308b\u304c\u3001\u305d\u306e\u53cd\u9762\u3001\u653b\u6483\u5bfe\u8c61\u304c\u62e1\u5927\u3059\u308b\u3002\u3064\u307e\u308a\u3001\u653b\u6483\u8005\u304c\u5185\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e1\u3064\u306e\u30c7\u30d0\u30a4\u30b9\u3092\u30bf\u30fc\u30b2\u30c3\u30c8\u306b\u3057\u305f\u5834\u5408\u3001\u305d\u306e\u653b\u6483\u306f\u540c\u3058IP\u3092\u5171\u6709\u3059\u308b\u4ed6\u306e\u3059\u3079\u3066\u306e\u30c7\u30d0\u30a4\u30b9\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002  \u3055\u3089\u306b\u3001\u5171\u6709IP\u30a2\u30c9\u30ec\u30b9\u306f\u3001\u305d\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u5171\u6709\u3059\u308b\u4ed6\u306e\u9867\u5ba2\u306e\u300c\u8a55\u5224\u3092\u843d\u3068\u3059\u300d\u3053\u3068\u306b\u3082\u3064\u306a\u304c\u308b\u3002\u540c\u3058IP\u3092\u5171\u6709\u3057\u3066\u3044\u308b\u4ed6\u306e\u30e6\u30fc\u30b6\u30fc\u304cBAN\u3055\u308c\u305f\u5834\u5408\u3001\u300c\u4e0d\u5f53\u306b\u300d\u30d6\u30ed\u30c3\u30af\u3055\u308c\u305f\u308a\u3001\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u304b\u3089\u306e\u30a2\u30af\u30bb\u30b9\u304c\u5236\u9650\u3055\u308c\u305f\u308a\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u4e0d\u5f53\u306b\u30a2\u30af\u30bb\u30b9\u7981\u6b62\u306b\u3055\u308c\u305f\u5834\u5408\u3001\"<a href=\"https:\/\/www.rapidseedbox.com\/ja\/blog\/your-ip-has-been-banned\">\u79c1\u306eIP\u306fBAN\u3055\u308c\u307e\u3057\u305f<\/a>\u300c\u30a8\u30e9\u30fc\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>b.\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3068\u306e\u76f4\u63a5\u901a\u4fe1\u306b\u4f9d\u5b58\u3059\u308b\u30c7\u30d0\u30a4\u30b9\u3001\u30a2\u30d7\u30ea\u3001\u30b5\u30fc\u30d3\u30b9\u306e\u8ab2\u984c\u3002<\/strong><\/h4>\n\n\n\n<p>\u7e70\u308a\u8fd4\u3057\u306b\u306a\u308b\u304c\u3001CGNAT\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30d9\u30fc\u30b9\u306e\u30b5\u30fc\u30d3\u30b9\u306b\u5bfe\u3059\u308b\u5bb6\u5ead\u7528\u6a5f\u5668\u306e\u30a8\u30f3\u30c9\u30fb\u30c4\u30fc\u30fb\u30a8\u30f3\u30c9\u306e\u901a\u4fe1\u3092\u906e\u65ad\u3059\u308b\u3002CGNAT\u306f\u3001\u9867\u5ba2\u304c\u5916\u90e8\u30bd\u30fc\u30b9\u304b\u3089\u30db\u30fc\u30e0\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u80fd\u529b\u3092\u5236\u9650\u3059\u308b\u3002CGNAT\u306f\u65b0\u305f\u306a\u4ef2\u4ecb\u30ec\u30a4\u30e4\u30fc\u3092\u8ffd\u52a0\u3059\u308b\u305f\u3081\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3078\u306e\u76f4\u63a5\u63a5\u7d9a\u306b\u3082\u5f71\u97ff\u3092\u53ca\u307c\u3059\u3002CGNAT\u63a5\u7d9a\u306e\u80cc\u5f8c\u306b\u3044\u308b\u9867\u5ba2\u306f\u3001\u76f4\u63a5\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u306b\u4f9d\u5b58\u3059\u308b\u30c7\u30d0\u30a4\u30b9\u3001\u30a2\u30d7\u30ea\u3001\u307e\u305f\u306f\u30b5\u30fc\u30d3\u30b9\u3067\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002&nbsp;<\/p>\n\n\n\n<p><strong>CGNAT\u3067\u306f\u3001\u901a\u5e38\u3001\u9867\u5ba2\u306f\u30dd\u30fc\u30c8\u8ee2\u9001\u3084\u30d4\u30a2\u30c4\u30fc\u30d4\u30a2\u63a5\u7d9a\u306e\u3088\u3046\u306a\u30bf\u30b9\u30af\u3092\u5b9f\u884c\u3059\u308b\u81ea\u4e3b\u6027\u3092\u6301\u3063\u3066\u3044\u306a\u3044\u3002<\/strong> CPE\u306f\u6587\u5b57\u901a\u308a\u3001\u4e8b\u696d\u8005\u306e\u7ba1\u7406\u4e0b\u306b\u3042\u308b\u4eee\u60f3\u30eb\u30fc\u30bf\u30fc\u3067\u3042\u308b\u3002\u30dd\u30fc\u30c8\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0\u3068\u30d4\u30a2\u30c4\u30fc\u30d4\u30a2\uff08\u30d1\u30d6\u30ea\u30c3\u30afIP\u3092\u4f7f\u7528\uff09\u304c\u306a\u3051\u308c\u3070\u3001\u9867\u5ba2\u306f\u30a6\u30a7\u30d6\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u3001\u30aa\u30f3\u30e9\u30a4\u30f3\u30b2\u30fc\u30e0\u3001\u30d3\u30c7\u30aa\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u3001VoIP\u30b5\u30fc\u30d3\u30b9\u306a\u3069\u306e\u30db\u30fc\u30e0\u30d9\u30fc\u30b9\u306e\u30b5\u30fc\u30d0\u30fc\u3092\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3059\u308b\u3053\u3068\u304c\u56f0\u96e3\u306b\u306a\u308b\u3002\u3055\u3089\u306b\u3001\u9867\u5ba2\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u63a5\u7d9a\u3055\u308c\u305f\u3055\u307e\u3056\u307e\u306a\u30c7\u30d0\u30a4\u30b9\u3092IoT\uff08\u30e2\u30ce\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\uff09\u3068\u3057\u3066\u5bb6\u5ead\u74b0\u5883\uff08\u30db\u30fc\u30e0\u30aa\u30fc\u30c8\u30e1\u30fc\u30b7\u30e7\u30f3\u306a\u3069\uff09\u306b\u7c21\u5358\u306b\u7d71\u5408\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>c.\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30a2\u30af\u30bb\u30b9\u304a\u3088\u3073\u6d3b\u52d5\u306e\u76e3\u8996\u3001\u8abf\u67fb\u3001\u8ffd\u8de1<\/strong><\/h4>\n\n\n\n<p>\u307e\u305f\u3001CGNAT\u306e\u5c0e\u5165\u306f\u3001\u901a\u4fe1\u4e8b\u696d\u8005\u3084ISP\u304c\u30a2\u30af\u30bb\u30b9\u3092\u6e2c\u5b9a\u3001\u76e3\u8996\u3001\u8a18\u9332\u3059\u308b\u65b9\u6cd5\u3092\u8907\u96d1\u5316\u3055\u305b\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002\u3053\u306e\u554f\u984c\u306f\u305d\u306e\u5f8c\u3001\u52b9\u679c\u7684\u306a\u72af\u7f6a\u635c\u67fb\u3084\u7591\u308f\u3057\u3044\u6d3b\u52d5\u306e\u76e3\u8996\u3092\u59a8\u3052\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002\u516c\u958bIP\uff08\u8b58\u5225\u60c5\u5831\uff09\u306b\u30ea\u30f3\u30af\u3055\u308c\u305f\u79c1\u7684\u901a\u4fe1\u3092\u8a18\u9332\u3001\u8ffd\u8de1\u3001\u8a18\u9332\u3059\u308b\u65b9\u6cd5\u304c\u306a\u3051\u308c\u3070\u3001\u6cd5\u57f7\u884c\u6a5f\u95a2\u306f\u72af\u7f6a\u6d3b\u52d5\u3092\u8ffd\u8de1\u3059\u308b\u3053\u3068\u304c\u56f0\u96e3\u306b\u306a\u308b\u3002\u8ab0\u3067\u3082 <a href=\"https:\/\/www.rapidseedbox.com\/blog\/shared-ip-vs-dedicated\" target=\"_blank\" rel=\"noreferrer noopener\">\u5171\u6709IPv4\u30d1\u30d6\u30ea\u30c3\u30afIP<\/a> \u306f\u6587\u5b57\u901a\u308a\u3001\u30aa\u30f3\u30e9\u30a4\u30f3\u8a50\u6b3a\u3001\u9055\u6cd5\u30b3\u30f3\u30c6\u30f3\u30c4\u914d\u4fe1\u3001\u30cd\u30c3\u30c8\u3044\u3058\u3081\u3001\u30b9\u30d1\u30e0\u9001\u4fe1\u306a\u3069\u306e\u30b5\u30a4\u30d0\u30fc\u72af\u7f6a\u884c\u70ba\u3092\u884c\u3046\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002\u305d\u308c\u3067\u3082\u3001\u4e8c\u91cdNAT\u306e\u30b7\u30ca\u30ea\u30aa\u3067\u63a5\u7d9a\u3092\u30c8\u30ec\u30fc\u30b9\u30d0\u30c3\u30af\u3059\u308b\u306e\u306f\u96e3\u3057\u3044\u304b\u3082\u3057\u308c\u306a\u3044\u3001 <a href=\"https:\/\/www.rapidseedbox.com\/blog\/ipv4-address-tracking\" target=\"_blank\" rel=\"noreferrer noopener\">\u305d\u308c\u306f\u307e\u3060\u53ef\u80fd\u3067\u3042\u308b<\/a> ISP\u306e\u5354\u529b\u306e\u3082\u3068\uff08IP\u30a2\u30c9\u30ec\u30b9\u3068\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u306e\u76f8\u95a2\u95a2\u4fc2\u306b\u3088\u3063\u3066\uff09\u3002&nbsp;<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>d.\u9045\u5ef6\u306e\u8ab2\u984c\u3002&nbsp;<\/strong><\/h4>\n\n\n\n<p>CG-NAT\u304c\u3082\u305f\u3089\u3059\u6700\u3082\u91cd\u8981\u306a\u8ab2\u984c\u306e\u4e00\u3064\u306f\u3001\u9045\u5ef6\u306e\u554f\u984c\u3067\u3042\u308b\u3002\u3053\u306e\u907f\u3051\u3089\u308c\u306a\u3044\u6642\u9593\u9045\u5ef6\u306f\u3001\u7279\u306b\u30aa\u30f3\u30e9\u30a4\u30f3\u30b2\u30fc\u30e0\u3001\u30e9\u30a4\u30d6\u30b9\u30c8\u30ea\u30fc\u30e0\u3001\u30d3\u30c7\u30aa\u4f1a\u8b70\u306e\u3088\u3046\u306a\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u30a2\u30d7\u30ea\u306b\u4f9d\u5b58\u3057\u3066\u3044\u308b\u30e6\u30fc\u30b6\u30fc\u306b\u3068\u3063\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u306b\u60aa\u5f71\u97ff\u3092\u53ca\u307c\u3057\u307e\u3059\u3002\u4f59\u5206\u306aNAT\u3092\u5b9f\u884c\u3057\u3001\u5171\u6709\u30d1\u30d6\u30ea\u30c3\u30afIP\u3092\u4ecb\u3057\u3066\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3059\u308bCGNAT - \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u51e6\u7406\u306e\u4f59\u5206\u306a\u30ec\u30a4\u30e4\u30fc\u3092\u6301\u3064\u3053\u3068\u306f\u3001\u5fc5\u7136\u7684\u306b\u8ffd\u52a0\u6642\u9593\u304c\u767a\u751f\u3057\u307e\u3059\u3002\u6b8b\u5ff5\u306a\u3053\u3068\u306b\u3001CG-NAT\u306e\u5c0e\u5165\u306fISP\u306e\u9867\u5ba2\u3001\u7279\u306b\u30aa\u30f3\u30e9\u30a4\u30f3\u30b2\u30fc\u30de\u30fc\u306b\u30d5\u30e9\u30b9\u30c8\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u4e0e\u3048\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:16px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"05\">5.CGNAT\u306e\u4ee3\u66ff\u6848\u3068\u56de\u907f\u7b56\u3002&nbsp;<\/h2>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>a.\u901a\u4fe1\u4e8b\u696d\u8005\uff08\u304a\u3088\u3073ISP\uff09\u306e\u305f\u3081\u306eCGNAT\u4ee3\u66ff\u6848\u3002&nbsp;<\/strong><\/h4>\n\n\n\n<p>\u4e8b\u696d\u8005\u306fIPv4\u30a2\u30c9\u30ec\u30b9\u8a08\u753b\u3092\u62e1\u5927\u3057\u7d9a\u3051\u308b\u3053\u3068\u3082\u3001IPv4\u3092\u518d\u5229\u7528\u3059\u308b\u3053\u3068\u3082\u3001CGNAT\u30c9\u30e1\u30a4\u30f3\u3092\u62e1\u5927\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u308b\u304c\u3001CGNAT\u306b\u4ee3\u308f\u308b\uff08\u4e8b\u696d\u8005\u307e\u305f\u306f\u901a\u4fe1\u4e8b\u696d\u8005\u30ec\u30d9\u30eb\u3067\u306e\uff09\u6700\u5584\u306e\u9078\u629e\u80a2\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3042\u308b\u3002 <a href=\"https:\/\/www.rapidseedbox.com\/ja\/proxy\" target=\"_blank\" rel=\"noreferrer noopener\">IPv6<\/a>.\u3053\u306eIP\u30d0\u30fc\u30b8\u30e7\u30f36\u306f\u3001IPv4\u306e\u67af\u6e07\u3068\u3044\u3046\u60aa\u540d\u9ad8\u3044\u554f\u984c\u306b\u9593\u9055\u3044\u306a\u304f\u5bfe\u51e6\u3059\u308b\u3060\u308d\u3046\u3002\u591a\u304f\u306e\u30e6\u30fc\u30b6\u30fc\u306b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30a2\u30af\u30bb\u30b9\u3092\u63d0\u4f9b\u3057\u3001NAT\u3084CGNAT\u3092\u6c38\u4e45\u306b\u6d88\u6ec5\u3055\u305b\u308b\u3060\u308d\u3046\u3002\u3057\u304b\u3057\u3001IPv6\u304c\u5b8c\u5168\u306b\u53d7\u3051\u5165\u308c\u3089\u308c\u3001\u79fb\u884c\u3059\u308b\u306b\u306f\u9577\u3044\u6642\u9593\u304c\u304b\u304b\u308b\u3002 <a href=\"https:\/\/www.rapidseedbox.com\/ja\/blog\/ipv6-migration\" target=\"_blank\" rel=\"noreferrer noopener\">IPv6\u306b\u79fb\u884c\u3059\u308b\u7406\u7531\u3068\u30e1\u30ea\u30c3\u30c8<\/a>).&nbsp;<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">b.\u30a8\u30f3\u30c9\u30e6\u30fc\u30b6\u30fc\u306e\u305f\u3081\u306eCGNAT\u306e\u300c\u56de\u907f\u7b56\u300d\u3002<\/h4>\n\n\n\n<p><strong>CGNAT\u3092\u5229\u7528\u3059\u308b\u306b\u306f\uff1f <\/strong> \u30db\u30fc\u30e0\u30e6\u30fc\u30b6\u30fc\u30ec\u30d9\u30eb\u3067\u306f\u3001\u30db\u30fc\u30e0\u30e6\u30fc\u30b6\u30fc\u304c\u4f7f\u7528\u3067\u304d\u308b\u591a\u304f\u306eCGNAT\u4ee3\u66ff\u624b\u6bb5\u304c\u3042\u308b\u3002\u5fc5\u305a\u3057\u3082CGNAT\u3092\u30d0\u30a4\u30d1\u30b9\u3059\u308b\u305f\u3081\u3067\u306f\u306a\u304f\uff08\u3053\u306e\u4ef2\u4ecb\u624b\u6bb5\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u63d0\u4f9b\u3059\u308b\u305f\u3081\uff09\u3001\u30db\u30fc\u30e0\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u516c\u958b\u3059\u308b\u305f\u3081\u3067\u3042\u308b\u3002\u3053\u306e\u552f\u4e00\u306e\u4f8b\u5916\uff08\u56de\u907f\u7b56\u3067\u306f\u306a\u304f\u89e3\u6c7a\u7b56\uff09\u306f\u3001\u56fa\u5b9aIP\u30a2\u30c9\u30ec\u30b9\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u3067\u3042\u308b\u3002 <\/p>\n\n\n\n<ul>\n<li>\u56fa\u5b9aIP\u306e\u53d6\u5f97<\/li>\n\n\n\n<li>VPN<\/li>\n\n\n\n<li>SSH\u30c8\u30f3\u30cd\u30eb<\/li>\n\n\n\n<li><a href=\"https:\/\/www.rapidseedbox.com\/ja\/blog\/guide-to-socks5-proxy\" target=\"_blank\" rel=\"noreferrer noopener\">SOCKS5\u30d7\u30ed\u30ad\u30b7<\/a><\/li>\n\n\n\n<li>\u30c8\u30fc\u30a2<\/li>\n\n\n\n<li>\u30c0\u30a4\u30ca\u30df\u30c3\u30afDNS<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>\u56de\u907f\u7b56<\/strong><\/td><td><strong>\u8aac\u660e<\/strong><\/td><td><strong>\u30e1\u30ea\u30c3\u30c8<\/strong><\/td><td><strong>\u5236\u9650\u4e8b\u9805<\/strong><\/td><\/tr><tr><td><strong>\u9759\u7684IP<\/strong><\/td><td>ISP\u304b\u3089\u56fa\u5b9aIP\u30a2\u30c9\u30ec\u30b9\u3092\u53d6\u5f97\u3059\u308b\u3002<\/td><td>\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u30fb\u30b5\u30fc\u30d3\u30b9\u306b\u9069\u3057\u305f\u30c0\u30a4\u30ec\u30af\u30c8\u30fb\u30a2\u30af\u30bb\u30b9<\/td><td>\u30b3\u30f3\u30d5\u30a3\u30ae\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u304c\u5fc5\u8981\u3067\u3042\u308a\u3001CGNAT\u306e\u5fc5\u8981\u6027\u3092\u6392\u9664\u3059\u308b\u3082\u306e\u3067\u306f\u306a\u3044\u3002<\/td><\/tr><tr><td><strong>VPN<\/strong><\/td><td>CGNAT\u3092\u30d0\u30a4\u30d1\u30b9\u3057\u3066\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u6697\u53f7\u5316\u3057\u3001\u30ea\u30e2\u30fc\u30c8\u30b5\u30fc\u30d0\u30fc\u3092\u7d4c\u7531\u3059\u308b\u30bb\u30ad\u30e5\u30a2\u306a\u30c8\u30f3\u30cd\u30eb\u3002<\/td><td>\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u63d0\u4f9b\u3057\u3001\u5b9f\u969b\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u96a0\u3057\u307e\u3059\u3002<\/td><td>\u4fe1\u983c\u6027\u306e\u9ad8\u3044VPN\u30b5\u30fc\u30d3\u30b9\u304c\u5fc5\u8981\u3067\u3059\u3002<\/td><\/tr><tr><td><strong>SSH\u30c8\u30f3\u30cd\u30eb<\/strong><\/td><td>SSH\u3092\u4f7f\u3063\u3066\u3001\u3042\u306a\u305f\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u3068\u30ea\u30e2\u30fc\u30c8\u30b5\u30fc\u30d0\u30fc\u306e\u9593\u306b\u30c8\u30f3\u30cd\u30eb\u3092\u4f5c\u308a\u3001\u5b9f\u969b\u306eIP\u3067\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/td><td>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3078\u306e\u76f4\u63a5\u30a2\u30af\u30bb\u30b9\u304c\u53ef\u80fd\u3002<\/td><td>\u6280\u8853\u7684\u306a\u77e5\u8b58\u304c\u5fc5\u8981\u3067\u3042\u308a\u3001\u3059\u3079\u3066\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/td><\/tr><tr><td><strong><a href=\"https:\/\/www.rapidseedbox.com\/ja\/blog\/guide-to-socks5-proxy\" target=\"_blank\" rel=\"noreferrer noopener\">SOCKS5\u30d7\u30ed\u30ad\u30b7<\/a><\/strong><\/td><td>\u30d7\u30ed\u30ad\u30b7\u30b5\u30fc\u30d0\u30fc\u3092\u7d4c\u7531\u3057\u3066\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3057\u3001\u5b9f\u969b\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u96a0\u853d\u3059\u308b\u3002<\/td><td>\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u304c\u7c21\u5358\u3067\u3001\u7279\u5b9a\u306e\u7528\u9014\u306b\u4f7f\u7528\u3067\u304d\u308b\u3002<\/td><td>\u30d7\u30ed\u30ad\u30b7\u5bfe\u5fdc\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u9650\u308b\u3002<\/td><\/tr><tr><td><strong>\u30c8\u30fc\u30a2<\/strong><\/td><td>\u63a5\u7d9a\u3092\u533f\u540d\u5316\u3057\u3001\u3044\u304f\u3064\u304b\u306e\u5236\u9650\u3092\u56de\u907f\u3059\u308b\u305f\u3081\u306b\u3001\u30ea\u30ec\u30fc\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4ecb\u3057\u3066\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3057\u307e\u3059\u3002<\/td><td>\u533f\u540d\u6027\u3001\u30d6\u30ed\u30c3\u30af\u3055\u308c\u305f\u30b3\u30f3\u30c6\u30f3\u30c4\u3078\u306e\u30a2\u30af\u30bb\u30b9\u306e\u53ef\u80fd\u6027<\/td><td>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3078\u306e\u5f71\u97ff\u3001\u3059\u3079\u3066\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u304cTOR\u30d5\u30ec\u30f3\u30c9\u30ea\u30fc\u3068\u3044\u3046\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/td><\/tr><tr><td><strong>\u30c0\u30a4\u30ca\u30df\u30c3\u30afDNS<\/strong><\/td><td>DNS\u30ec\u30b3\u30fc\u30c9\u3092\u66f4\u65b0\u3057\u3066IP\u30a2\u30c9\u30ec\u30b9\u306e\u5909\u66f4\u3092\u53cd\u6620\u3055\u305b\u308b\u3002<\/td><td>CGNAT\u306e\u5236\u9650\u3092\u56de\u907f\u3067\u304d\u308b\u3002<\/td><td>\u30b3\u30f3\u30d5\u30a3\u30ae\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u304c\u5fc5\u8981\u3067\u3042\u308a\u3001CGNAT\u306e\u5fc5\u8981\u6027\u3092\u6392\u9664\u3059\u308b\u3082\u306e\u3067\u306f\u306a\u3044\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"06\">6.\u30db\u30fc\u30e0\u30e6\u30fc\u30b6\u30fc\u3068\u3057\u3066\uff09CGNAT\u306e\u5f8c\u308d\u306b\u5ea7\u3063\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3059\u308b\u65b9\u6cd5\u3002&nbsp;<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">a. <strong>\u30eb\u30fc\u30bf\u30fc\u306eWAN IP\u30a2\u30c9\u30ec\u30b9\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002&nbsp;<\/strong><\/h3>\n\n\n\n<p><strong>\u30eb\u30fc\u30bf\u30fc\u306eWAN IP\u30a2\u30c9\u30ec\u30b9\u304c100.64.0.0\/10\u306e\u7bc4\u56f2\u3067\u3042\u308c\u3070\u3001CGNAT\u306e\u80cc\u5f8c\u306b\u3044\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3002<\/strong> \u524d\u8ff0\u3057\u305f\u3088\u3046\u306b\u3001\u3053\u306eIP\u30a2\u30c9\u30ec\u30b9\u306e\u7bc4\u56f2\u306fCGNAT\u7528\u306b\u4e88\u7d04\u3055\u308c\u3066\u3044\u308b\u3002&nbsp;<\/p>\n\n\n\n<ul>\n<li>WAN\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f\u3001\u30db\u30fc\u30e0\u30eb\u30fc\u30bf\u30fc\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u30ed\u30b0\u30a4\u30f3\u3057\u307e\u3059\u3002\u30a6\u30a7\u30d6\u30d6\u30e9\u30a6\u30b6\u306b\u30eb\u30fc\u30bf\u30fc\u306eIP\u30a2\u30c9\u30ec\u30b9\uff08192.168.0.1\u307e\u305f\u306f192.168.1.1\u306a\u3069\uff09\u3092\u5165\u529b\u3059\u308b\u3053\u3068\u3067\u53ef\u80fd\u3067\u3059\u3002&nbsp;<\/li>\n\n\n\n<li>\u30ed\u30b0\u30a4\u30f3\u3057\u305f\u3089\u3001\u30eb\u30fc\u30bf\u30fc\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u30da\u30fc\u30b8\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3001WAN IP\u30a2\u30c9\u30ec\u30b9\u3092\u898b\u3064\u3051\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_04-1.png\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"546\" src=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_04-1.png\" alt=\"CGNAT\u306e\u30c1\u30a7\u30c3\u30af\" class=\"wp-image-21863\" srcset=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_04-1.png 1024w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_04-1-300x160.png 300w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_04-1-18x10.png 18w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">b. <strong>\u30aa\u30f3\u30e9\u30a4\u30f3\u30c4\u30fc\u30eb\u3092\u4f7f\u3063\u3066\u3001\u3042\u306a\u305f\u306e\u30d1\u30d6\u30ea\u30c3\u30afIP\u30a2\u30c9\u30ec\u30b9\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002&nbsp;<\/strong><\/h3>\n\n\n\n<p>\u306e\u3088\u3046\u306a\u7121\u6599\u306e\u516c\u958bIP\u691c\u7d22\u30b5\u30a4\u30c8\u304c\u305f\u304f\u3055\u3093\u3042\u308a\u307e\u3059\u3002 <a href=\"https:\/\/www.whatismyip.com\/\">\u30db\u30ef\u30c6\u30a3\u30b9\u30df\u30a4\u30d7<\/a>\u307e\u305f\u306f <a href=\"https:\/\/www.ipchicken.com\/\">IP\u30c1\u30ad\u30f3<\/a> \u3042\u306a\u305f\u306e\u30d1\u30d6\u30ea\u30c3\u30afIP\u30a2\u30c9\u30ec\u30b9\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002&nbsp;<\/p>\n\n\n\n<ul>\n<li><strong>\u53d6\u5f97\u3057\u305fIP\u30a2\u30c9\u30ec\u30b9\u304c\u30eb\u30fc\u30bf\u30fc\u306eWAN\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306eIP\u30a2\u30c9\u30ec\u30b9\u3068\u7570\u306a\u308b\u5834\u5408\u3001CGNAT\u306e\u80cc\u5f8c\u306b\u3044\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3002&nbsp;<\/strong><\/li>\n\n\n\n<li>\u3053\u3053\u306b\u8868\u793a\u3055\u308c\u3066\u3044\u308bIP\u30a2\u30c9\u30ec\u30b9\u304c\u3001\u30eb\u30fc\u30bf\u30fc\u306eWAN\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u3066\u3044\u308bIP\u30a2\u30c9\u30ec\u30b9\u3068\u4e00\u81f4\u3059\u308b\u5834\u5408\u3001CGNAT\u306e\u80cc\u5f8c\u306b\u3044\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_03.png\"><img decoding=\"async\" loading=\"lazy\" width=\"697\" height=\"538\" src=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_03.png\" alt=\"IP\u30eb\u30c3\u30af\u30a2\u30c3\u30d7\" class=\"wp-image-17394\" srcset=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_03.png 697w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_03-300x232.png 300w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_03-16x12.png 16w\" sizes=\"(max-width: 697px) 100vw, 697px\" \/><\/a><figcaption class=\"wp-element-caption\"><em>\u753b\u50cf\uff1a <a href=\"https:\/\/www.ipchicken.com\/\">\u30a4\u30d7\u30c1\u30ad\u30f3<\/a><\/em><\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">c. <strong>\u30c8\u30ec\u30fc\u30b9\u30eb\u30fc\u30c8\u30c4\u30fc\u30eb\u3092\u4f7f\u3046\u3002&nbsp;<\/strong><\/h3>\n\n\n\n<p>\u3042\u306a\u305f\u306e\u30d1\u30d6\u30ea\u30c3\u30afIP\u30a2\u30c9\u30ec\u30b9\u306btraceroute\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002\u30c8\u30ec\u30fc\u30b9\u30eb\u30fc\u30c8\u306f\u3001\u3059\u3079\u3066\u306e\u4e00\u822c\u7684\u306aOS\u306b\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30c4\u30fc\u30eb\u3067\u3059\u3002\u3053\u308c\u3092\u4f7f\u7528\u3057\u3066\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u76ee\u7684\u5730\u306b\u5230\u9054\u3059\u308b\u307e\u3067\u306e\u7d4c\u8def\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002traceroute\u304c\u3042\u306a\u305f\u306e\u30d1\u30d6\u30ea\u30c3\u30afIP\u30a2\u30c9\u30ec\u30b9\u3078\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u3092\u7e70\u308a\u8fd4\u30592\u3064\u4ee5\u4e0a\u306e\u30db\u30c3\u30d7\u3092\u793a\u3059\u5834\u5408\u3001\u3042\u306a\u305f\u306fCGNAT\u306e\u80cc\u5f8c\u306b\u3042\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<p><strong>\u30c8\u30ec\u30fc\u30b9\u30eb\u30fc\u30c8\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\u3057\u3066\u307f\u3088\u3046\uff08CGNAT\u306a\u3057\uff09\u3002&nbsp;&nbsp;<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_05.png\"><img decoding=\"async\" loading=\"lazy\" width=\"728\" height=\"160\" src=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_05.png\" alt=\"\u30eb\u30fc\u30c8\u30c8\u30ec\u30fc\u30b9\" class=\"wp-image-17396\" srcset=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_05.png 728w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_05-300x66.png 300w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_05-18x4.png 18w\" sizes=\"(max-width: 728px) 100vw, 728px\" \/><\/a><\/figure>\n\n\n\n<ul>\n<li>\u524d\u306e\u4f8b\u3067\u306f\u3001\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u306e\u7e70\u308a\u8fd4\u3057\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u3057\u3066\u3001\u30eb\u30fc\u30bf\u30fc\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u304b\u3089ISP\u306e\u30eb\u30fc\u30bf\u30fcIP\uff082\uff09\u3078\u3001\u6b21\u306bISP\u306e\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4IP\uff083\uff09\u3078\u3001\u305d\u3057\u3066\u6700\u5f8c\u306bISP\u306e\u30d1\u30d6\u30ea\u30c3\u30afIP\u306b\u5230\u9054\u3057\u3066\u304b\u3089\u5b9b\u5148IP\u306b\u5230\u9054\u3059\u308b\u3068\u3044\u3046\u660e\u78ba\u306a\u9032\u884c\u304c\u898b\u3089\u308c\u308b\u3002\u3053\u306e\u30d1\u30bf\u30fc\u30f3\u306f\u3001\u30d1\u30b9\u306b\u4e2d\u9593CGNAT\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u304c\u306a\u3044\u3053\u3068\u3092\u793a\u5506\u3057\u3066\u3044\u308b\u3002<\/li>\n<\/ul>\n\n\n\n<p><strong>CGNAT\u3092\u4f7f\u3063\u3066\uff09\u30c8\u30ec\u30fc\u30b9\u30eb\u30fc\u30c8\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\u3057\u3066\u307f\u3088\u3046\u3002&nbsp;&nbsp;<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_01.png\"><img decoding=\"async\" loading=\"lazy\" width=\"735\" height=\"201\" src=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_01.png\" alt=\"\u30eb\u30fc\u30c8\u30c8\u30ec\u30fc\u30b9\" class=\"wp-image-17392\" srcset=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_01.png 735w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_01-300x82.png 300w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_01-18x5.png 18w\" sizes=\"(max-width: 735px) 100vw, 735px\" \/><\/a><\/figure>\n\n\n\n<ul>\n<li>\u3053\u306e\u4f8b\u3067\u306f\u3001\u30db\u30c3\u30d72\u30013\u30014\u3067\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u304c\u7e70\u308a\u8fd4\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304b\u3089\u3001ISP\u306e\u30d1\u30d6\u30ea\u30c3\u30afIP\u306b\u5230\u9054\u3059\u308b\u524d\u306b\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u4e00\u9023\u306e\u5185\u90e8CGNAT\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3092\u7d4c\u7531\u3057\u3066\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308b\u3002\u7e70\u308a\u8fd4\u3055\u308c\u308b\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u306f\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u5230\u9054\u3059\u308b\u524d\u306bCGNAT\u306e\u8907\u6570\u306e\u30ec\u30a4\u30e4\u30fc\u3092\u901a\u904e\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u793a\u5506\u3057\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>\u5b9f\u969b\u306b\u81ea\u5206\u306e\u30d1\u30d6\u30ea\u30c3\u30afIP\u3092\u30c8\u30ec\u30fc\u30b9\u3057\u305f\u3068\u304d\u306etraceroute\u306e\u7d50\u679c\u3002&nbsp;<\/strong><\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_06.png\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"422\" src=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_06-1024x422.png\" alt=\"CGNAT\u306e\u30c8\u30ec\u30fc\u30b9\u30eb\u30fc\u30c8\" class=\"wp-image-17397\" srcset=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_06-1024x422.png 1024w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_06-300x124.png 300w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_06-18x7.png 18w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/CGNAT_06.png 1094w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<ul>\n<li>\u6700\u521d\u306e\u30db\u30c3\u30d7\uff08192.168.1.1\uff09\u306f\u3001\u30ed\u30fc\u30ab\u30eb\u30eb\u30fc\u30bf\u30fc\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\uff08RFC1918\uff09\u3067\u3042\u308b\u3002<\/li>\n\n\n\n<li>2\u756a\u76ee\u306e\u30db\u30c3\u30d7\u30012\u3064\uff08*\uff09\u306f\u3001\u30c8\u30ec\u30fc\u30b9\u30eb\u30fc\u30c8\u8981\u6c42\u306b\u5fdc\u7b54\u3057\u306a\u304b\u3063\u305f\uff08\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u307e\u305f\u306fICMP\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u304c\u539f\u56e0\u3068\u601d\u308f\u308c\u308b\uff09\u3002\u3053\u306e\u30db\u30c3\u30d7\u306f\u3001\u30eb\u30fc\u30bf\u30fc\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9WAN IP\u3001\u4e2d\u9593\u30c7\u30d0\u30a4\u30b9\u3001\u307e\u305f\u306f\u4ed6\u306eISP\u307e\u305f\u306fCGNAT\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u3067\u3042\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002&nbsp;<\/li>\n\n\n\n<li>\u6b21\u306e\u30db\u30c3\u30d73\u30684\u306f\u3001\u30af\u30e9\u30b9A\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5b58\u5728\u3092\u793a\u3057\u3066\u3044\u308b\u3002\u3053\u308c\u30892\u3064\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u306f\u3001ISP\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u5185\u90e8\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30dd\u30a4\u30f3\u30c8\uff08WAN IP\u3068\u540c\u3058\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\uff09\u3067\u3042\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3002&nbsp;<\/li>\n<\/ul>\n\n\n\n<p>traceroute\u306e\u7d50\u679c\u304b\u3089\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f\u30d1\u30d6\u30ea\u30c3\u30afIP\uff08\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\uff09\u306b\u5230\u9054\u3059\u308b\u524d\u306bISP\u306e\u5185\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u901a\u904e\u3057\u3066\u3044\u308b\u3068\u7d50\u8ad6\u3065\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002 <strong>\u3053\u308c\u306fISP\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3067\u306f\u307e\u3063\u305f\u304f\u666e\u901a\u306e\u3053\u3068\u3067\u3001\u9032\u884c\u4e2d\u306e\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u304c\u5fc5\u305a\u3057\u3082CGNAT\u306e\u5b58\u5728\u3092\u793a\u3059\u308f\u3051\u3067\u306f\u306a\u3044\u3002&nbsp;<\/strong><\/p>\n\n\n\n<div style=\"height:15px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"07\">7.\u3088\u304f\u3042\u308b\u8cea\u554f\uff08FAQ\uff09<\/h2>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>a.\u901a\u4fe1\u30ad\u30e3\u30ea\u30a2\u3001\u30aa\u30da\u30ec\u30fc\u30bf\u30fc\u3001ISP\u304cCGNAT\u3092\u63a1\u7528\u3059\u308b\u7406\u7531\u306f\uff1f <\/strong><\/h4>\n\n\n\n<p>CGNAT\u306e\u63a1\u7528\u306f\u3001IPv4\u30a2\u30c9\u30ec\u30b9\u306e\u4e0d\u8db3\u306b\u5f37\u304f\u62d8\u675f\u3055\u308c\u3066\u3044\u308b\u3002\u643a\u5e2f\u96fb\u8a71\u306a\u3069\u306eIPv4\u30c7\u30d0\u30a4\u30b9\u306e\u9700\u8981\u304c\u5897\u52a0\u3057\u305f\u305f\u3081\u3001\u901a\u4fe1\u4e8b\u696d\u8005\u306f\u3088\u308a\u5927\u898f\u6a21\u306aNAT\u3092\u63a1\u7528\u305b\u3056\u308b\u3092\u5f97\u306a\u304f\u306a\u3063\u305f\u3002\u901a\u4fe1\u4e8b\u696d\u8005\u306f\u3001IPv4\u30b9\u30da\u30fc\u30b9\u306e\u7bc0\u7d04\u3060\u3051\u3067\u306a\u304f\u3001IPv4\u30a2\u30c9\u30ec\u30b9\u306e\u5236\u9650\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001\u3088\u308a\u591a\u304f\u306e\u30c7\u30d0\u30a4\u30b9\u306b\u63a5\u7d9a\u6027\u3092\u63d0\u4f9b\u3057\u7d9a\u3051\u308b\u305f\u3081\u306b\u3001\u30c0\u30d6\u30ebNAT\u307e\u305f\u306fCGNAT\u3092\u63a1\u7528\u3057\u305f\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>b.CGNAT\u304c\u95a2\u4fc2\u3059\u308b\u4e00\u822c\u7684\u306a\u30b7\u30ca\u30ea\u30aa\u306b\u306f\u3069\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u304b\uff1f <\/strong><\/h4>\n\n\n\n<p>\u4e8b\u696d\u8005\u306f\u3001CGNAT\u3092IPv4\u30a2\u30c9\u30ec\u30b9\u5171\u6709\uff08\u56fa\u5b9a\u901a\u4fe1\u4e8b\u696d\u8005\u307e\u305f\u306f\u30e2\u30d0\u30a4\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff09\u306e\u4e00\u822c\u7684\u306a\u7528\u9014\u306b\u4f7f\u7528\u3057\u305f\u308a\u3001\u30c7\u30e5\u30a2\u30eb\u30b9\u30bf\u30c3\u30af\u30e9\u30a4\u30c8\uff08\u307e\u305f\u306fIPv6\u3078\u306e\u79fb\u884c\uff09\u306b\u3082\u4f7f\u7528\u3067\u304d\u308b\u3002&nbsp;<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>c.CGNAT\u306e\u8a2d\u5b9a\u65b9\u6cd5\u306f\uff1f <\/strong><\/h4>\n\n\n\n<p>CGNAT\u306e\u5b9f\u88c5\u306f\u30ad\u30e3\u30ea\u30a2\u307e\u305f\u306fISP\u30ec\u30d9\u30eb\u306e\u30bf\u30b9\u30af\u3067\u3042\u308b\uff08\u672c\u30ac\u30a4\u30c9\u306e\u7bc4\u56f2\u5916\uff09\u3002\u3057\u304b\u3057\u3001\u4e00\u822c\u7684\u306b CGNAT \u3092\u8a2d\u5b9a\u3059\u308b\u306b\u306f\u3001\u30ad\u30e3\u30ea\u30a2\u306f\u9069\u5207\u306a\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\uff08\u30eb\u30fc\u30bf\u30fc\u3001\u30b9\u30a4\u30c3\u30c1\u3001\u307e\u305f\u306f\u30b5\u30fc\u30d0\u30fc\uff09\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3001\u304a\u3088\u3073\u8907\u6570\u306e\u30e6\u30fc\u30b6\u30fc\u3092\u53ce\u5bb9\u3059\u308b\u305f\u3081\u306e\u5805\u7262\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a4\u30f3\u30d5\u30e9\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u304c\u5fc5\u8981\u3067\u3059\u3002CGNAT\u3092\u8a2d\u5b9a\u3059\u308b\u306b\u306f\uff08NAT\u3068\u540c\u69d8\u306b\uff09\u3001\u30dd\u30fc\u30c8\u30de\u30c3\u30d4\u30f3\u30b0\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u30c8\u30e9\u30c3\u30ad\u30f3\u30b0\u3001\u30a2\u30c9\u30ec\u30b9\u5272\u308a\u5f53\u3066\u30dd\u30ea\u30b7\u30fc\uff08IP\u30d7\u30fc\u30eb\u306e\u5272\u308a\u5f53\u3066\u306a\u3069\uff09\u304c\u5fc5\u8981\u3067\u3059\u3002&nbsp;<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>d.NAT444\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f&nbsp;<\/strong><\/h4>\n\n\n\n<p>IPv4\u30a2\u30c9\u30ec\u30b9\u306e\u4e0d\u8db3\u3068IPv6\u3078\u306e\u79fb\u884c\u304c\u3082\u305f\u3089\u3059\u8ab2\u984c\u306b\u5bfe\u51e6\u3059\u308b\u305f\u3081\u306b\u8a2d\u8a08\u3055\u308c\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306e\u4e00\u7a2e\u30022\u3064\u306eNAPT\uff08Network Address and Port Translator\uff09\u30683\u7a2e\u985e\u306eIPv4\u30a2\u30c9\u30ec\u30b9\u30d6\u30ed\u30c3\u30af\u3092\u4f7f\u7528\u3057\u3001\u7570\u306a\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30c7\u30d0\u30a4\u30b9\u9593\u306e\u901a\u4fe1\u3092\u5bb9\u6613\u306b\u3059\u308b\u3002NAT4444\u3067\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f\u5b9b\u5148\u306b\u5230\u9054\u3059\u308b\u307e\u3067\u306b3\u56deNAT\u3092\u53d7\u3051\u308b\u3002&nbsp;<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>e.NAT64\u3068\u306f\u4f55\u304b\u3001\u306a\u305cCGNAT\u3068\u95a2\u4fc2\u304c\u3042\u308b\u306e\u304b\uff1f&nbsp;<\/strong><\/h4>\n\n\n\n<p>NAT64\u306f\u3001IPv6\u5c02\u7528\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068IPv4\u5c02\u7528\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9593\u306e\u901a\u4fe1\u3092\u5bb9\u6613\u306b\u3059\u308b\u3002IPv6\u5c02\u7528\u30c7\u30d0\u30a4\u30b9\u304cNAT\u306b\u3088\u3063\u3066IPv4\u5c02\u7528\u30b5\u30fc\u30d0\u30fc\u3068\u901a\u4fe1\u3057\u3001IPv6\u30d1\u30b1\u30c3\u30c8\u3092IPv4\u306b\u5909\u63db\u3057\u305f\u308a\u3001\u9006\u306bIPv6\u30d1\u30b1\u30c3\u30c8\u3092IPv4\u306b\u5909\u63db\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u3053\u308c\u306f\u3001ISP\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u4e3b\u306bIPv6\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u304c\u3001IPv4\u30ea\u30bd\u30fc\u30b9\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u63d0\u4f9b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u306b\u3001CGNAT\u306e\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u306b\u7279\u306b\u95a2\u9023\u3059\u308b\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>f.VPN\u306fCGNAT\u306e\u56de\u907f\u7b56\u3068\u3057\u3066\u3069\u306e\u7a0b\u5ea6\u6709\u52b9\u3067\u3059\u304b\uff1f <\/strong><\/h4>\n\n\n\n<p>\u5168\u4f53\u3068\u3057\u3066\u3001VPN\u306f\u52b9\u679c\u7684\u306aCGNAT\u56de\u907f\u7b56\u3068\u306a\u308a\u5f97\u308b\u3002\u4fe1\u983c\u3067\u304d\u308bVPN\u30b5\u30fc\u30d3\u30b9\u3092\u9078\u3073\u3055\u3048\u3059\u308c\u3070\u3001VPN\u306fCGNAT\u3092\u56de\u907f\u3067\u304d\u308b\u306f\u305a\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u56de\u907f\u7b56\u3068\u3057\u3066\u4f7f\u7528\u3059\u308bVPN\u3092\u6c7a\u5b9a\u3059\u308b\u524d\u306b\u3001\u901f\u5ea6\u8981\u4ef6\u3001\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3078\u306e\u61f8\u5ff5\u3001CGNAT\u3092\u30d0\u30a4\u30d1\u30b9\u3059\u308b\u80fd\u529b\u306a\u3069\u3001\u7279\u5b9a\u306e\u30cb\u30fc\u30ba\u3092\u8003\u616e\u3059\u308b\u3053\u3068\u304c\u5e38\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>g.CGNAT\u306e\u80cc\u5f8c\u3067\u30dd\u30fc\u30c8\u8ee2\u9001\u3092\u884c\u3046\u306b\u306f\uff1f <\/strong><\/h4>\n\n\n\n<p>CGNAT\u306e\u80cc\u5f8c\u3067\u30dd\u30fc\u30c8\u8ee2\u9001\u3092\u5b9f\u884c\u3059\u308b\u3053\u3068\u306f\u3001\u30d1\u30d6\u30ea\u30c3\u30afIP\u30a2\u30c9\u30ec\u30b9\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u69cb\u6210\u306e\u5236\u5fa1\u304c\u9650\u3089\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u56f0\u96e3\u306a\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u53ef\u80fd\u6027\u306e\u3042\u308b\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u306f\u3001\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u308c\u3070UPnP\u3092\u4f7f\u7528\u3059\u308b\u3001\u30dd\u30fc\u30c8\u8ee2\u9001\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3059\u308b\u3001\u30dd\u30fc\u30c8\u8ee2\u9001\u6a5f\u80fd\u3092\u6301\u3064VPN\u3092\u691c\u8a0e\u3057\u3066\u30c7\u30d0\u30a4\u30b9\u306e\u7279\u5b9a\u306e\u30dd\u30fc\u30c8\u3092\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u516c\u958b\u3059\u308b\u3001\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u3053\u308c\u3089\u306e\u65b9\u6cd5\u306e\u6709\u52b9\u6027\u306f\u3055\u307e\u3056\u307e\u3067\u3042\u308a\u3001CGNAT\u4ee5\u5916\u306e\u74b0\u5883\u3067\u306f\u5f93\u6765\u306e\u30dd\u30fc\u30c8\u8ee2\u9001\u3068\u540c\u30ec\u30d9\u30eb\u306e\u5236\u5fa1\u304c\u3067\u304d\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:16px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"08\">8.\u6700\u5f8c\u306e\u8a00\u8449&nbsp;<\/h2>\n\n\n\n<p>CGNAT\u306f\u8cdb\u5426\u4e21\u8ad6\u3042\u308b\u6280\u8853\u3060\u3002CGNAT\u306e\u5c0e\u5165\u306b\u306f\u5229\u70b9\u3068\u6b20\u70b9\u306e\u4e21\u65b9\u304c\u3042\u308a\u307e\u3059\u3002\u6700\u7d42\u7684\u306b\u3001CGNAT\u3092\u4f7f\u7528\u3059\u308b\u304b\u3069\u3046\u304b\u306f\u3001\u5404ISP\u6b21\u7b2c\u3067\u3059\u3002CGNAT\u306fISP\u304cIPv4\u30d1\u30d6\u30ea\u30c3\u30af\u30a2\u30c9\u30ec\u30b9\u30b9\u30da\u30fc\u30b9\u306e\u8cbb\u7528\u3092\u7bc0\u7d04\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u304c\u3001ISP\u304c\u8003\u616e\u3059\u3079\u304d\u30a8\u30f3\u30c9\u30e6\u30fc\u30b6\u30fc\u306b\u3068\u3063\u3066\u306e\u6f5c\u5728\u7684\u306a\u6b20\u70b9\u304c\u305f\u304f\u3055\u3093\u3042\u308a\u307e\u3059\u3002&nbsp;<\/p>\n\n\n\n<p><strong>\u8981\u7d04\u3059\u308b\u3068\uff08\u9867\u5ba2\u306b\u3068\u3063\u3066\uff09\uff1a&nbsp;<\/strong><\/p>\n\n\n\n<ul>\n<li>CGNAT\u306e\u5f8c\u308d\u306b\u3044\u308b\u5834\u5408\u3001\u30db\u30fc\u30e0\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7528\u306e\u81ea\u5206\u306e\u30d1\u30d6\u30ea\u30c3\u30afIP\u30a2\u30c9\u30ec\u30b9\u306f\u53d6\u5f97\u3067\u304d\u307e\u305b\u3093\u3002\u3053\u306e\u305f\u3081\u3001\u4e00\u90e8\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5f71\u97ff\u304c\u51fa\u305f\u308a\u3001\u7279\u5b9a\u306e\u30aa\u30f3\u30e9\u30a4\u30f3\u30b5\u30fc\u30d3\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3057\u306b\u304f\u304f\u306a\u3063\u305f\u308a\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u3055\u3089\u306b\u3001CGNAT\u306e\u80cc\u5f8c\u306b\u3044\u308b\u5834\u5408\u3001\u30e9\u30b0\u3084\u9045\u5ef6\u306a\u3057\u306b\u30db\u30fc\u30e0\u30b5\u30fc\u30d0\u30fc\u3092\u30db\u30b9\u30c8\u3057\u305f\u308a\u3001\u30aa\u30f3\u30e9\u30a4\u30f3\u30b2\u30fc\u30e0\u3001VoIP\u3001\u30d5\u30a1\u30a4\u30eb\u5171\u6709\u3092\u4f7f\u7528\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u3053\u306e\u30ac\u30a4\u30c9\u3067\u63d0\u6848\u3055\u308c\u3066\u3044\u308bCGNAT\u3092\u30d0\u30a4\u30d1\u30b9\u3059\u308b\u56de\u907f\u7b56\u3092\u8a66\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3092\u4f7f\u7528\u3059\u308b\u3002 <a href=\"https:\/\/www.rapidseedbox.com\/ja\/blog\/vpn-vs-proxy\">VPN\u307e\u305f\u306f\u30d7\u30ed\u30ad\u30b7<\/a>.\u3042\u308b\u3044\u306f\u3001ISP\u306b\u5229\u7528\u53ef\u80fd\u306a\u9759\u7684IPv4\u30d1\u30d6\u30ea\u30c3\u30af\u30a2\u30c9\u30ec\u30b9\u304c\u306a\u3044\u304b\u805e\u3044\u3066\u307f\u308b\u306e\u3082\u3088\u3044\u3002&nbsp;<br><\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading has-text-align-center has-background\" style=\"background-color:#b0f2b6\"><strong>RapidSeedbox\u306eIPv6\u30ec\u30f3\u30bf\u30eb\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3067CGNAT\u3092\u98db\u3073\u8d8a\u3048\u3088\u3046\ud83c\udf0d\u3002<br><\/strong><br><em>\u5f53\u793e\u306eIPv6\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u3067\u3001\u76f4\u63a5\u63a5\u7d9a\u3068\u30d5\u30eb\u30aa\u30fc\u30d0\u30fcIP\u306e\u30e1\u30ea\u30c3\u30c8\u3092\u4eab\u53d7\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5e74\u4e2d\u7121\u4f11\u306e\u30b5\u30dd\u30fc\u30c8\u3068\u900f\u660e\u6027\u306e\u9ad8\u3044\u4fa1\u683c\u8a2d\u5b9a\u3002<br><\/em><br><strong>\u672c\u65e5\u306e\u9650\u5b9a\u30aa\u30d5\u30a1\u30fc<\/strong><\/h4>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-2\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-background wp-element-button\" href=\"https:\/\/www.rapidseedbox.com\/ja\/ipv4-rental\/?blog=cgnat&amp;promocode=IPV620OFF&amp;billingcycle=monthly#pricing\" style=\"background-color:#22c55e\"><strong> <em>\u30b3\u30fc\u30c9\u300cIPV620OFF\u300d\u3092\u3054\u5229\u7528\u3044\u305f\u3060\u304f\u3068\u3001IPv6\u88fd\u54c1\u306e\u521d\u6708\u304c20%\u5272\u5f15\u3068\u306a\u308a\u307e\u3059\u3002<\/em><\/strong><\/a><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>\u30ad\u30e3\u30ea\u30a2\u30b0\u30ec\u30fc\u30c9NAT\uff08CGNAT\uff09\u306f\u3001ISP\u304c\u9650\u3089\u308c\u305f\u6570\u306e\u30d1\u30d6\u30ea\u30c3\u30afIP\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u7528\u3057\u3066\u3001\u591a\u6570\u306e\u9867\u5ba2\u306b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30a2\u30af\u30bb\u30b9\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u3092\u53ef\u80fd\u306b\u3059\u308b\u3002\u3053\u308c\u306fIPv4\u30a2\u30c9\u30ec\u30b9\u306e\u67af\u6e07\u554f\u984c\u306b\u5bfe\u3059\u308b\u300c\u4e00\u6642\u7684\u306a\u300d\u89e3\u6c7a\u7b56\u3067\u3042\u308a\u3001IPv6\u304c\u5e83\u304f\u63a1\u7528\u3055\u308c\u308c\u3070\u5b8c\u5168\u306b\u5ec3\u6b62\u3055\u308c\u308b\u3068\u4e88\u60f3\u3055\u308c\u3066\u3044\u308b\u3002CGNAT\u306fISP\u306b\u3068\u3063\u3066\u9a5a\u304f\u3079\u304d\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308b\u3002\u30d1\u30d6\u30ea\u30c3\u30afIPv4\u30a2\u30c9\u30ec\u30b9\u306e\u30b3\u30b9\u30c8\u3092\u524a\u6e1b\u3057\u3001IP\u30d7\u30fc\u30eb\u3092\u4fdd\u8b77\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u3057\u304b\u3057\u6b8b\u5ff5\u306a\u304c\u3089\u3001CGNAT\u306b\u306f\u8003\u616e\u3059\u3079\u304d\u6b20\u70b9\u304c\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u3002  \u3053\u306e\u30d6\u30ed\u30b0\u30dd\u30b9\u30c8\u3067\u306f\u3001CGNAT\u306e\u57fa\u672c\u3001\u5229\u70b9\u3068\u6b20\u70b9\u3001\u304a\u3088\u3073CGNAT\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002\u307e\u305f<\/p>","protected":false},"author":145,"featured_media":26944,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[39],"tags":[450,455,410,309,310,319],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What Is CGNAT (Carrier-Grade NAT)? Definition &amp; Examples<\/title>\n<meta name=\"description\" content=\"Understand CGNAT and how it solves IPv4 exhaustion. Learn its pros, cons, IP ranges, and why ISPs use it in modern networks.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.rapidseedbox.com\/ja\/blog\/cgnat\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What Is CGNAT (Carrier-Grade NAT)? Definition &amp; Examples\" \/>\n<meta property=\"og:description\" content=\"Understand CGNAT and how it solves IPv4 exhaustion. Learn its pros, cons, IP ranges, and why ISPs use it in modern networks.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.rapidseedbox.com\/ja\/blog\/cgnat\" \/>\n<meta property=\"og:site_name\" content=\"RapidSeedbox\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/RapidSeedbox\/\" \/>\n<meta property=\"article:published_time\" content=\"2023-08-10T03:37:06+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-22T10:55:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/cgnat-1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"623\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Diego Asturias\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@rapidseedbox\" \/>\n<meta name=\"twitter:site\" content=\"@rapidseedbox\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"Diego Asturias\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"19\u5206\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"What Is CGNAT (Carrier-Grade NAT)? 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