{"id":12577,"date":"2021-10-13T14:58:56","date_gmt":"2021-10-13T14:58:56","guid":{"rendered":"https:\/\/www.rapidseedbox.com\/?p=12577"},"modified":"2026-02-23T08:26:27","modified_gmt":"2026-02-23T08:26:27","slug":"ipv6-vs-ipv4","status":"publish","type":"post","link":"https:\/\/www.rapidseedbox.com\/ja\/blog\/ipv6-vs-ipv4","title":{"rendered":"IPv4\u3068IPv6\uff1a11\u306e\u4e3b\u306a\u9055\u3044\uff08\u6700\u65b0\u7248\uff09"},"content":{"rendered":"<p>IPv4 vs IPv6\uff1f\u305d\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f\u305d\u308c\u305e\u308c\u306e\u9577\u6240\u3068\u77ed\u6240\u306f\uff1f<\/p>\n\n\n\n<p>IPv4\u306f\u73fe\u5728\u306e\u3068\u3053\u308d\u3001\u6700\u3082\u4e00\u822c\u7684\u3067\u5e83\u304f\u4f7f\u308f\u308c\u3066\u3044\u308b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30fb\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u3042\u308b\u3002IPv4\u304c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3092\u652f\u3048\u3066\u3044\u308b\u3053\u3068\u306b\u5909\u308f\u308a\u306f\u306a\u3044\u304c\u3001 <a href=\"https:\/\/www.rapidseedbox.com\/ja\/ipv4-rental\/?blog=ipv6-vs-ipv4\" target=\"_blank\" rel=\"noreferrer noopener\">IPv6<\/a> (\u305d\u306e\u65b0\u3057\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\uff09\u304c\u5f90\u3005\u306b\u95a2\u5fc3\u3092\u96c6\u3081\u3066\u3044\u308b\u3002 <\/p>\n\n\n\n<p><strong>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u4e21\u65b9\u306eIP\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002\u4e21\u8005\u306e\u9055\u3044\u3092\u3001\u6df1\u3044\u6280\u8853\u7684\u306a\u8aac\u660e\u3092\u4ea4\u3048\u3066\u8aac\u660e\u3057\u307e\u3059\u3002\u305d\u3057\u3066\u300111\u306e\u91cd\u8981\u306a\u9055\u3044\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002 <\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"531\" src=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/ipv4-vs-ipv6-1-1024x531.png\" alt=\"ipv4 vs ipv6\" class=\"wp-image-28868\" srcset=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/ipv4-vs-ipv6-1-1024x531.png 1024w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/ipv4-vs-ipv6-1-300x155.png 300w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/ipv4-vs-ipv6-1-1536x796.png 1536w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/ipv4-vs-ipv6-1-18x9.png 18w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/ipv4-vs-ipv6-1.png 1748w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u76ee\u6b21&nbsp;<\/h2>\n\n\n\n<ol>\n<li><a href=\"#01\">IPv4\u3068\u306f\uff1f<\/a><\/li>\n\n\n\n<li><a href=\"#02\">IPv6\u3068\u306f\u4f55\u304b\uff1f<\/a><\/li>\n\n\n\n<li><strong><a href=\"#03\">11\u306e\u4e3b\u306a\u9055\u3044\uff1aIPv4\u3068IPv6\u306e\u9055\u3044\u3002<\/a><\/strong>\n<ul>\n<li>\u30a2\u30c9\u30ec\u30b9\u306e\u7d44\u307f\u5408\u308f\u305b\u306e\u6570\u3002<\/li>\n\n\n\n<li>\u7570\u306a\u308b\u4f4f\u6240\u8868\u8a18\u3002&nbsp;<\/li>\n\n\n\n<li>\u77ed\u7e2e\u30c6\u30af\u30cb\u30c3\u30af\u3002<\/li>\n\n\n\n<li>\u30a2\u30c9\u30ec\u30b9\u306e\u30bf\u30a4\u30d7\u3068\u30b9\u30b3\u30fc\u30d7\u306f\u7570\u306a\u308b\u3002&nbsp;<\/li>\n\n\n\n<li>\u30b0\u30ed\u30fc\u30d0\u30eb\u30e6\u30cb\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u3068\u30d1\u30d6\u30ea\u30c3\u30af\u30a2\u30c9\u30ec\u30b9\u306e\u6bd4\u8f03\u3002&nbsp;<\/li>\n\n\n\n<li>\u30ed\u30fc\u30ab\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u5272\u308a\u5f53\u3066\u304c\u7570\u306a\u308b\u3002<\/li>\n\n\n\n<li>\u30d8\u30c3\u30c0\u30fc\u306e\u9055\u3044\uff08\u5236\u5fa1\u30d3\u30c3\u30c8\uff09<\/li>\n\n\n\n<li>\u8ab0\u304cNAT\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u5909\u63db\uff09\u3092\u5fc5\u8981\u3068\u3059\u308b\u306e\u304b\uff1f<\/li>\n\n\n\n<li>IPSec\u306e\u5b9f\u88c5 <\/li>\n\n\n\n<li>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u3001\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u3001\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8\u3002&nbsp;<\/li>\n\n\n\n<li>\u901f\u5ea6\u306eIPv4\u3068IPv6\u3002\u3069\u3061\u3089\u304c\u901f\u3044\uff1f&nbsp;<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><a href=\"#04\">IPv6\u3068IPv4\uff1a\u76f8\u9055\u70b9\u30c1\u30e3\u30fc\u30c8<\/a>.<\/li>\n\n\n\n<li><a href=\"#05\">IPv4\u3068IPv6\u306eFAQ\u3002<\/a><\/li>\n<\/ol>\n\n\n\n<div style=\"height:19px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"01\">1.IPv4\u3068\u306f\uff1f<\/h2>\n\n\n\n<p>IPv4\uff08\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30fb\u30d7\u30ed\u30c8\u30b3\u30eb\u30fb\u30d0\u30fc\u30b8\u30e7\u30f34\uff09\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5168\u4f53\u3092\u6a5f\u80fd\u3055\u305b\u308b\u4e3b\u8981\u306a\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u30fb\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3042\u308b\u3002IPv4\u306f <a href=\"https:\/\/tools.ietf.org\/html\/rfc791\" target=\"_blank\" rel=\"noreferrer noopener\">\u30a2\u30fc\u30eb\u30a8\u30d5\u30b7\u30fc791<\/a> 1981\u5e74\u304b\u3089\u3002IPv4\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3092\u542b\u3080\uff09\u306b\u63a5\u7d9a\u3055\u308c\u305f\u5404\u30c7\u30d0\u30a4\u30b9\u306b\u4e00\u610f\u306e\u8b58\u5225\u5b50\u3092\u4e0e\u3048\u308b\u3002&nbsp;<\/p>\n\n\n\n<p>IPv4\u30d1\u30b1\u30c3\u30c8\u306e\u30b5\u30a4\u30ba\u306f\u3001\u30aa\u30d7\u30b7\u30e7\u30f3\u30fb\u30d5\u30a3\u30fc\u30eb\u30c9\u3068\u30c7\u30fc\u30bf\u30fb\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u3088\u3063\u3066\u30d3\u30c3\u30c8\u5358\u4f4d\u3067\u7570\u306a\u308b\u5834\u5408\u304c\u3042\u308b\u3002IPv4\u30d1\u30b1\u30c3\u30c8\u306e\u6700\u5c0f\u30b5\u30a4\u30ba\u306f20\u30d0\u30a4\u30c8\uff08\u5236\u5fa1\u7528\uff09\u304b\u3089\u6700\u592760\u30d0\u30a4\u30c8\u307e\u3067\u3002&nbsp;&nbsp;<strong>IP\u30d1\u30b1\u30c3\u30c8\u306b\u306f\u5236\u5fa1\u30d7\u30ec\u30fc\u30f3\uff08\u30d8\u30c3\u30c0\u30fc\uff09\u3068\u30c7\u30fc\u30bf\u30d7\u30ec\u30fc\u30f3\uff08\u30da\u30a4\u30ed\u30fc\u30c9\uff09\u304c\u542b\u307e\u308c\u308b\u3002<\/strong><\/p>\n\n\n\n<p>\u30d1\u30b1\u30c3\u30c8\u306e\u6700\u521d\u306e4\u30d3\u30c3\u30c8(Version)\u306fIP\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u793a\u3059\u3002\u77e2\u5370\u306f\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u8868\u793a\u3055\u308c\u308b\u30d1\u30b1\u30c3\u30c8\u30d8\u30c3\u30c0\u306e\u6700\u521d\u306e\u30d3\u30c3\u30c8\u3092\u793a\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"720\" height=\"349\" src=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/image4-8.png\" alt=\"IPv4\u30d1\u30b1\u30c3\u30c8 \" class=\"wp-image-12585\" srcset=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/image4-8.png 720w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/image4-8-300x145.png 300w\" sizes=\"(max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\"><em>\u30d1\u30d6\u30ea\u30c3\u30af\u30c9\u30e1\u30a4\u30f3\u306e\u5199\u771f <a href=\"https:\/\/commons.wikimedia.org\/wiki\/Main_Page\">\u30a6\u30a3\u30ad\u30e1\u30c7\u30a3\u30a2\u30fb\u30b3\u30e2\u30f3\u30ba<\/a><\/em><\/figcaption><\/figure>\n\n\n\n<p>IPv4\u304c\u5236\u5fa1\u30d5\u30a3\u30fc\u30eb\u30c9\u306b\u4f55\u3092\u6301\u3064\u304b\u3092\u77e5\u308b\u3053\u3068\u306f\u3001IPv4\u3068IPv6\u306e\u6c7a\u5b9a\u7684\u306a\u9055\u3044\u3092\u7406\u89e3\u3059\u308b\u306e\u306b\u5f79\u7acb\u3064\u3002&nbsp; <\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u3067\u306f\u3001\u3053\u308c\u3089\u306e\u30d1\u30b1\u30c3\u30c8\u30fb\u30d5\u30a3\u30fc\u30eb\u30c9\u304c\u4f55\u3067\u3042\u308b\u304b\u3092\u5b9a\u7fa9\u3057\u3066\u307f\u3088\u3046\uff1a<\/h4>\n\n\n\n<ul>\n<li>\u30d0\u30fc\u30b8\u30e7\u30f3\uff08\u30d3\u30c3\u30c84\uff09\uff1a\u30d1\u30b1\u30c3\u30c8\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u6307\u5b9a\u3059\u308b\u3002&nbsp;<\/li>\n\n\n\n<li>IHL\uff08\u30d3\u30c3\u30c84\uff09\uff1a\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30d8\u30c3\u30c0\u9577\uff08IHL\uff09\u306f\u30d8\u30c3\u30c0\u306e\u9577\u3055\u3092\u6307\u5b9a\u3059\u308b\u3002<\/li>\n\n\n\n<li>\u30b5\u30fc\u30d3\u30b9\u30bf\u30a4\u30d7\uff08TOS - 8\u30d3\u30c3\u30c8\uff09\uff1a\u30c7\u30fc\u30bf\u30b0\u30e9\u30e0\u306e\u51e6\u7406\u65b9\u6cd5\u3092\u6307\u5b9a\u3059\u308b\u3002&nbsp;<\/li>\n\n\n\n<li>\u5168\u9577\uff0816\u30d3\u30c3\u30c8\uff09\uff1a\u30c7\u30fc\u30bf\u30b0\u30e9\u30e0\u306e\u9577\u3055\u3002&nbsp;<\/li>\n\n\n\n<li>Identification\uff0816\u30d3\u30c3\u30c8\uff09\uff1a\u4ed6\u306e\u30c7\u30fc\u30bf\u30b0\u30e9\u30e0\u306e\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u3092\u8b58\u5225\u3059\u308b\u3002&nbsp;<\/li>\n\n\n\n<li>\u30d5\u30e9\u30b0\uff083\u30d3\u30c3\u30c8\uff09\uff1a\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u3001\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u306a\u3057\u3001\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u4ee5\u4e0a\u3002<\/li>\n\n\n\n<li>\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u30aa\u30d5\u30bb\u30c3\u30c8\uff0813\u30d3\u30c3\u30c8\uff09\uff1a\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u3092\u30a2\u30bb\u30f3\u30d6\u30eb\u3059\u308b\u3002&nbsp;<\/li>\n\n\n\n<li>Time to Live\uff08TTL-8\u30d3\u30c3\u30c8\uff09\uff1a\u30c7\u30fc\u30bf\u30b0\u30e9\u30e0\u306e\u5bff\u547d\u3092\u793a\u3059\u3002&nbsp;<\/li>\n\n\n\n<li>\u30d7\u30ed\u30c8\u30b3\u30eb\uff088\u30d3\u30c3\u30c8\uff09\uff1a\u3053\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u306f\u6b21\u306b\u30ab\u30d7\u30bb\u30eb\u5316\u3055\u308c\u308b\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u6307\u5b9a\u3059\u308b\u3002&nbsp;<\/li>\n\n\n\n<li>\u30d8\u30c3\u30c0\u30fc\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\uff0816\u30d3\u30c3\u30c8\uff09\uff1a\u7834\u640d\u30d1\u30b1\u30c3\u30c8\u306e\u691c\u51fa\u306b\u5f79\u7acb\u3064\u3002<\/li>\n\n\n\n<li>\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\uff0832\u30d3\u30c3\u30c8\uff09\uff1a\u9001\u4fe1\u5143\uff08\u9001\u4fe1\u8005\uff09\u306eIP\u30a2\u30c9\u30ec\u30b9&nbsp;<\/li>\n\n\n\n<li>\u5b9b\u5148\u30a2\u30c9\u30ec\u30b9\uff0832\u30d3\u30c3\u30c8\uff09\uff1a\u5b9b\u5148\uff08\u53d7\u4fe1\u5074\uff09\u306eIP\u30a2\u30c9\u30ec\u30b9\u3002<\/li>\n\n\n\n<li>\u30aa\u30d7\u30b7\u30e7\u30f3\uff08\u53ef\u5909\u30d3\u30c3\u30c8\uff09\uff1a\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u30d1\u30e9\u30e1\u30fc\u30bf\u3002<\/li>\n\n\n\n<li>\u30c7\u30fc\u30bf\uff08\u6700\u5927524,120\u30d3\u30c3\u30c8\u307e\u305f\u306f65K\u30d0\u30a4\u30c8\uff09\uff1a\u53d7\u4fe1\u6a5f\u306b\u9001\u4fe1\u3059\u308bIP\u30c7\u30fc\u30bf\uff08\u3082\u3057\u3042\u308c\u3070\uff09\u3092\u904b\u3076\u3002&nbsp;<\/li>\n<\/ul>\n\n\n\n<p><strong>\u4ee5\u4e0b\u306f\u3001IPv4\u30d1\u30b1\u30c3\u30c8\u304c\u30d1\u30b1\u30c3\u30c8\u30b9\u30cb\u30c3\u30d5\u30a1\u30fc\uff08Wireshark\uff09\u304b\u3089\u3069\u306e\u3088\u3046\u306b\u898b\u3048\u308b\u304b\u306e\u5199\u771f\u3067\u3042\u308b\u3002<\/strong> IP\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3092\u4f7f\u3048\u3070\u3001\u7279\u5b9a\u306e\u30d1\u30b1\u30c3\u30c8\u306b\u3069\u306e\u3088\u3046\u306a\u5236\u5fa1\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u4f7f\u308f\u308c\u3066\u3044\u308b\u304b\u3092\u7279\u5b9a\u3067\u304d\u308b\u3002\u77e2\u5370\uff08\u4e0b\u56f3\uff09\u306e\u3088\u3046\u306b\u3001\u3053\u306eIP\u30d1\u30b1\u30c3\u30c8\u306f\u30d0\u30fc\u30b8\u30e7\u30f34\u3067\u3042\u308b\u3002\u4ee5\u4e0b\u306f\u3001\u30d0\u30fc\u30b8\u30e7\u30f3\u3068\u30d1\u30b1\u30c3\u30c8\u9577\u3092\u8868\u305916\u9032\u6570(45)\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"544\" src=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/image3-2.jpg\" alt=\"IPv4\u30d1\u30b1\u30c3\u30c8Wireshark\" class=\"wp-image-12584\" srcset=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/image3-2.jpg 1024w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/image3-2-300x159.jpg 300w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><em>\u753b\u50cf\uff1a <a href=\"http:\/\/wireshark.org\">\u30ef\u30a4\u30e4\u30fc\u30b7\u30e3\u30fc\u30af<\/a><\/em><\/figcaption><\/figure>\n\n\n\n<p><strong><em>\u8208\u5473\u6df1\u3044\u4e8b\u5b9f\u3060\uff01<\/em><\/strong><em> \u3067\u306f\u3001IPv1\u3001IPv2\u3001IPv3\u3001IPv5\u306f\u3069\u3046\u306a\u3063\u305f\u306e\u304b\uff1fIEEE\u3068\u79d1\u5b66\u8005\u305f\u3061\u306f\u3001\u5b8c\u5168\u306b\u904b\u7528\u53ef\u80fd\u306aIP\u30a2\u30c9\u30ec\u30b9\u65b9\u5f0f\u3067\u3042\u308bIPv4\u304c\u767b\u5834\u3059\u308b\u307e\u3067\u30013\u3064\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\uff08IPv1\u3001IPv2\u3001IPv3\uff09\u3067\u5b9f\u9a13\u3092\u884c\u3063\u305f\u3002\u305d\u3057\u3066IPv5\u304c\u767b\u5834\u3057\u305f\u3068\u304d\u3001\u305d\u308c\u306f\u30b9\u30c8\u30ea\u30fc\u30e0\u30d7\u30ed\u30c8\u30b3\u30eb\uff08SP\uff09\u306e\u5b9f\u9a13\u3068\u3057\u3066\u4f7f\u308f\u308c\u305f\u305f\u3081\u3001IP\u79d1\u5b66\u8005\u305f\u3061\u306f\u5b9f\u9a13\u3068\u306e\u6df7\u540c\u3092\u907f\u3051\u308b\u305f\u3081\u306bIPv6\u3068\u3044\u3046\u540d\u524d\u306b\u5909\u66f4\u3059\u308b\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002&nbsp;<\/em><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">b.IPv4\u30a2\u30c9\u30ec\u30b9\u306e\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3002&nbsp;<\/h3>\n\n\n\n<p>\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u306f16\u9032\u6570\u3067\u4f1a\u8a71\u3059\u308b\u3002\u3057\u304b\u3057\u300116\u9032\u6570\u306f\u4eba\u9593\u306b\u3068\u3063\u3066\u6d88\u5316\u3057\u306b\u304f\u3044\u305f\u3081\u3001IPv4\u30a2\u30c9\u30ec\u30b9\u306f10\u9032\u6570\u8868\u8a18\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u3002IPv4\u30a2\u30c9\u30ec\u30b9\u306f\u30014\u3064\u306e\u30aa\u30af\u30c6\u30c3\u30c8\uff0832\u30d3\u30c3\u30c8\/4\uff1d8\uff09\u3092\u30c9\u30c3\u30c8\u3067\u533a\u5207\u3063\u305f10\u9032\u6570\u8868\u8a18\u3067\u8a18\u8ff0\u3055\u308c\u308b\u3002\u5404\u30aa\u30af\u30c6\u30c3\u30c8\uff088\u30d3\u30c3\u30c8\uff09\u306f10\u9032\u6570\u30670\uff5e255\u306e\u7bc4\u56f2\u306b\u306a\u308b\u3002\u30a2\u30c9\u30ec\u30b9\u306f\u3001IPv4\u30a2\u30c9\u30ec\u30b9\u306e\u30af\u30e9\u30b9\uff08A\u3001B\u3001C\uff09\u306b\u3088\u3063\u3066\u9577\u3055\u304c\u7570\u306a\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8b58\u5225\u5b50\u3068\u30db\u30b9\u30c8\u8b58\u5225\u5b50\u3001\u304a\u3088\u3073\u3044\u304f\u3064\u304b\u306e\u4e88\u7d04\u30d3\u30c3\u30c8\uff08\u30af\u30e9\u30b9\u3092\u5b9a\u7fa9\u3059\u308b\uff09\u306b\u5206\u3051\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"583\" height=\"321\" src=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/image5-8.png\" alt=\"IPv4\u30a2\u30c9\u30ec\u30b9\u5f62\u5f0f\" class=\"wp-image-12586\" srcset=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/image5-8.png 583w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/image5-8-300x165.png 300w\" sizes=\"(max-width: 583px) 100vw, 583px\" \/><figcaption class=\"wp-element-caption\"><em>\u30d1\u30d6\u30ea\u30c3\u30af\u30c9\u30e1\u30a4\u30f3\u306e\u5199\u771f <a href=\"https:\/\/commons.wikimedia.org\/wiki\/Main_Page\">\u30a6\u30a3\u30ad\u30e1\u30c7\u30a3\u30a2\u30fb\u30b3\u30e2\u30f3\u30ba<\/a><\/em><\/figcaption><\/figure>\n\n\n\n<p>\u4f8b\u3068\u3057\u3066\u3001\u4e0b\u306e\u56f3\u306f\u30af\u30e9\u30b9B\u306eIPv4\u30a2\u30c9\u30ec\u30b9172.16.254.1\u3092\u793a\u3057\u3066\u304a\u308a\u300132\u30d3\u30c3\u30c8\u306e\u30a2\u30c9\u30ec\u30b9\u304c4\u3064\uff088\u30d3\u30c3\u30c8\uff09\u306b\u5206\u5272\u3055\u308c\u3066\u3044\u308b\u3002&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/image6-6.png\" alt=\"IPv4\u30a2\u30c9\u30ec\u30b9\u5f62\u5f0f\" class=\"wp-image-12587\" width=\"521\" height=\"313\" srcset=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/image6-6.png 750w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/image6-6-300x180.png 300w\" sizes=\"(max-width: 521px) 100vw, 521px\" \/><figcaption class=\"wp-element-caption\"><em>\u30d1\u30d6\u30ea\u30c3\u30af\u30c9\u30e1\u30a4\u30f3\u306e\u5199\u771f <a href=\"https:\/\/commons.wikimedia.org\/wiki\/Main_Page\">\u30a6\u30a3\u30ad\u30e1\u30c7\u30a3\u30a2\u30fb\u30b3\u30e2\u30f3\u30ba<\/a><\/em><\/figcaption><\/figure>\n\n\n\n<p><strong><em>\u8208\u5473\u6df1\u3044\u4e8b\u5b9f\u3060\uff01 <\/em><\/strong><em>IPv4\u30a2\u30c9\u30ec\u30b9\u306e\u7d44\u307f\u5408\u308f\u305b\u53ef\u80fd\u7dcf\u6570\u306f\u7d0440\u5104\u500b\u3067\u3001\u3053\u308c\u306f\u4e16\u754c\u4e2d\u306e\u4eba\u95932\u4eba\u306b\u307b\u307c1\u500b\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u5272\u308a\u5f53\u3066\u3066\u3044\u308b\u3053\u3068\u306b\u306a\u308b\u3002\u3057\u304b\u3057\u3001\u3053\u306e\u81a8\u5927\u306a\u6570\u306e\u7d44\u307f\u5408\u308f\u305b\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001\u4e16\u754c\u7684\u306a\u901a\u4fe1\u3092\u63d0\u4f9b\u3059\u308b\u306b\u306f\u307e\u3060\u5341\u5206\u306aIP\u304c\u306a\u3044\u3002IoT\u30c7\u30d0\u30a4\u30b9\u3001\u4eee\u60f3\u5316\u3001\u30af\u30e9\u30a6\u30c9\u3001\u305d\u3057\u3066\u7279\u306bIPv4\u306e\u4e0d\u9069\u5207\u306a\u5272\u308a\u5f53\u3066\u306a\u3069\u3001\u3053\u306e\u67af\u6e07\u306b\u306f\u591a\u304f\u306e\u7406\u7531\u304c\u3042\u308b\u3002<\/em><\/p>\n\n\n\n<div style=\"height:19px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"02\">2.IPv6\u3068\u306f\uff1f<\/h2>\n\n\n\n<p>IPv6\u6280\u8853\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u3002 <a href=\"https:\/\/tools.ietf.org\/html\/rfc2460\" target=\"_blank\" rel=\"noreferrer noopener\">RFC 2460<\/a> \u9069\u5207\u306a\u66f4\u65b0\u3068\u4fee\u6b63\u3068\u3068\u3082\u306b\u3002\u305d\u306e <a href=\"https:\/\/www.rapidseedbox.com\/ja\/blog\/what-is-ipv6\" target=\"_blank\" rel=\"noreferrer noopener\">IPv6\u30a2\u30c9\u30ec\u30b9<\/a> \u306f128\u30d3\u30c3\u30c8\u306e\u30a2\u30c9\u30ec\u30b9\u7a7a\u9593\u3092\u4f7f\u3044\u3001IPv4\u306e32\u30d3\u30c3\u30c8\u304c2^32\u3067\u3042\u308b\u306e\u306b\u5bfe\u3057\u30012^128\u306e\u30a2\u30c9\u30ec\u30b9\u306b\u306a\u308b\u3002128\u30d3\u30c3\u30c8\u306e\u7d44\u307f\u5408\u308f\u305b\u306f2\u9032\u6570\u8868\u8a18\u306e\u30a2\u30c9\u30ec\u30b9\u306b\u306a\u308a\u3001\u4eba\u9593\u304c\u8a18\u61b6\u3059\u308b\u306b\u306f\u96e3\u3057\u3059\u304e\u308b\u305f\u3081\u3001IPv6\u306f16\u9032\u6570\u3067\u8868\u8a18\u3055\u308c\u308b\u3002&nbsp;<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u306b\u4f8b\u3092\u6319\u3052\u3066\u8aac\u660e\u3059\u308b\u3002IPV6\u30a2\u30c9\u30ec\u30b9\uff080123:4567:89ab:cdef:0123:4567:89ab:cdef\uff09\u306e\u9577\u3055\u306f16\u30d0\u30a4\u30c8\uff08\u307e\u305f\u306f128\u30d3\u30c3\u30c8\uff09\u3067\u3059\u3002\u30b3\u30ed\u30f3\uff08:\uff09\u3067\u533a\u5207\u3089\u308c\u305f16\u30d3\u30c3\u30c8\u306e8\u3064\u306e\u30b0\u30eb\u30fc\u30d7\u3067\u69cb\u6210\u3055\u308c\u308b\u30028\u00d716\uff1d128\u30d3\u30c3\u30c8\u3067\u3042\u308b\u3002&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/image2-9.png\" alt=\"IPv6\u30a2\u30c9\u30ec\u30b9\u5f62\u5f0f\" class=\"wp-image-12583\" width=\"741\" height=\"411\" srcset=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/image2-9.png 1024w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/image2-9-300x166.png 300w\" sizes=\"(max-width: 741px) 100vw, 741px\" \/><figcaption class=\"wp-element-caption\"><em>\u30d1\u30d6\u30ea\u30c3\u30af\u30c9\u30e1\u30a4\u30f3\u306e\u5199\u771f <a href=\"https:\/\/commons.wikimedia.org\/wiki\/Main_Page\">\u30a6\u30a3\u30ad\u30e1\u30c7\u30a3\u30a2\u30fb\u30b3\u30e2\u30f3\u30ba<\/a><\/em><\/figcaption><\/figure>\n\n\n\n<p>2001:0db8:0000:0000:0000:ff00:0042:8329\u306e\u3088\u3046\u306aIPv6\u30a2\u30c9\u30ec\u30b9\u306f\u3001\u7ba1\u7406\u3001\u8a18\u61b6\u3001\u4f7f\u7528\u3059\u308b\u306e\u304c\u975e\u5e38\u306b\u56f0\u96e3\u3067\u3059\u3002\u305d\u3053\u3067IPv6\u3067\u306f\u3001\u5148\u982d\u3084\u9023\u7d9a\u3059\u308b\u30bc\u30ed\u306e\u90e8\u5206\u3092\u7701\u7565\u3059\u308b\u306a\u3069\u306e\u30eb\u30fc\u30eb\u3092\u5c0e\u5165\u3057\u3001\u77ed\u7e2e\u5316\u3092\u56f3\u308a\u307e\u3057\u305f\u3002\u4f8b\u3048\u3070\u3001\u4ee5\u524d\u306e\u30a2\u30c9\u30ec\u30b9\u306f\u3001\u3053\u308c\u3089\u306e\u30eb\u30fc\u30eb\u3092\u9069\u7528\u3057\u305f\u5f8c\u30012001:db8::ff00:42:8329\u306b\u77ed\u7e2e\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002&nbsp;<\/p>\n\n\n\n<p>IPv6\u30a2\u30c9\u30ec\u30b9\u306f\u534a\u5206\u306b\u5206\u5272\u3055\u308c\u308b\u3002\u6700\u4e0a\u4f4d\u30d3\u30c3\u30c8\uff08\u5de6\u7aef\uff09\u306e64\u30d3\u30c3\u30c8\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u8868\u3057\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u3068\u3057\u3066\u4f7f\u7528\u3055\u308c\u308b\u3002\u3082\u3046\u534a\u5206\uff08n-128\uff09\u306e\u6700\u4e0b\u4f4d\u5074\uff08\u53f3\u7aef\uff09\u306e64\u30d3\u30c3\u30c8\u306f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u8b58\u5225\u5b50\u3092\u8868\u3057\u3001\u30ed\u30fc\u30ab\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u30db\u30b9\u30c8\u306b\u4f7f\u7528\u3055\u308c\u308b\u3002&nbsp;&nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/image8-5.png\" alt=\"IPv6\u30a2\u30c9\u30ec\u30b9\u5f62\u5f0f\uff08128\u30d3\u30c3\u30c8\uff09\" class=\"wp-image-12589\" width=\"578\" height=\"181\" srcset=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/image8-5.png 800w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/image8-5-300x94.png 300w\" sizes=\"(max-width: 578px) 100vw, 578px\" \/><figcaption class=\"wp-element-caption\"><em>\u30d1\u30d6\u30ea\u30c3\u30af\u30c9\u30e1\u30a4\u30f3\u306e\u5199\u771f <a href=\"https:\/\/commons.wikimedia.org\/wiki\/Main_Page\">\u30a6\u30a3\u30ad\u30e1\u30c7\u30a3\u30a2\u30fb\u30b3\u30e2\u30f3\u30ba<\/a><\/em><\/figcaption><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">a.IPv6\u30d1\u30b1\u30c3\u30c8\u3002&nbsp;<\/h3>\n\n\n\n<p>IPv6\u3068IPv4\u306e\u30d1\u30b1\u30c3\u30c8\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306f\u975e\u5e38\u306b\u4f3c\u3066\u3044\u308b\u3002IPv6\u306b\u306f\u3001\u30c7\u30fc\u30bf\u8ee2\u9001\u306b\u4f7f\u308f\u308c\u308b\u30da\u30a4\u30ed\u30fc\u30c9\u3068\u547c\u3070\u308c\u308b\u300c\u30c7\u30fc\u30bf\u300d\u30b9\u30da\u30fc\u30b9\u3068\u3001\u30d8\u30c3\u30c0\u30fc\u3068\u547c\u3070\u308c\u308b\u300c\u5236\u5fa1\u300d\u30b9\u30da\u30fc\u30b9\u304c\u3042\u308b\u3002\u30d8\u30c3\u30c0\u30fc\u3068\u30da\u30a4\u30ed\u30fc\u30c9\u3092\u542b\u3080IPv6\u30d1\u30b1\u30c3\u30c8\u5168\u4f53\u306e\u6700\u5c0f\u30b5\u30a4\u30ba\u306f1280\u30d0\u30a4\u30c8\u3067\u3001\u30d8\u30c3\u30c0\u30fc\u306f\u56fa\u5b9a\u306740\u30d0\u30a4\u30c8\u3001\u300c\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u30da\u30a4\u30ed\u30fc\u30c9\u300d\u306f1240\u30d0\u30a4\u30c8\u3067\u3042\u308b\u3002&nbsp;&nbsp;<\/p>\n\n\n\n<p>IPv6\u306e\u30d1\u30b1\u30c3\u30c8\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3092\u898b\u308b\u3068\u3001IPv4\u3088\u308a\u3082\u305a\u3063\u3068\u30b7\u30f3\u30d7\u30eb\u3067\u3042\u308b\u3053\u3068\u306b\u3059\u3050\u306b\u6c17\u3065\u304f\u3060\u308d\u3046\u3002\u3088\u308a\u30b7\u30f3\u30d7\u30eb\u3060\u304c\u3001\u306f\u308b\u304b\u306b\u5927\u304d\u3044\uff01<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" loading=\"lazy\" width=\"800\" height=\"502\" src=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/image7-6.png\" alt=\"IPv6\u30d1\u30b1\u30c3\u30c8\" class=\"wp-image-12588\" srcset=\"https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/image7-6.png 800w, https:\/\/www.rapidseedbox.com\/wp-content\/uploads\/image7-6-300x188.png 300w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption class=\"wp-element-caption\"><em>\u30d1\u30d6\u30ea\u30c3\u30af\u30c9\u30e1\u30a4\u30f3\u306e\u5199\u771f <a href=\"https:\/\/commons.wikimedia.org\/wiki\/Main_Page\">\u30a6\u30a3\u30ad\u30e1\u30c7\u30a3\u30a2\u30fb\u30b3\u30e2\u30f3\u30ba<\/a><\/em><\/figcaption><\/figure>\n\n\n\n<p><strong>IPv6\u56fa\u5b9a\u5236\u5fa1\u30d1\u30b1\u30c3\u30c8\u306f\u3001\u3053\u306e\u4e2d\u306e320\u30d3\u30c3\u30c8\uff0840\u30d0\u30a4\u30c8\uff09\u3067\u69cb\u6210\u3055\u308c\u308b\uff1a&nbsp;<\/strong><\/p>\n\n\n\n<ul>\n<li>\u30d0\u30fc\u30b8\u30e7\u30f3\uff084\u30d3\u30c3\u30c8\uff09\uff1aIPv4\u307e\u305f\u306fIPv6\u30d1\u30b1\u30c3\u30c8\u306e\u6700\u521d\u306e4\u30d3\u30c3\u30c8\u306f\u4f3c\u3066\u304a\u308a\u3001IP\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u6c7a\u5b9a\u3059\u308b\u3002<\/li>\n\n\n\n<li>Traffic Class\uff088\u30d3\u30c3\u30c8\uff09\uff1a\u30d1\u30b1\u30c3\u30c8\u306e\u512a\u5148\u5ea6\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002&nbsp;&nbsp;<\/li>\n\n\n\n<li>\u30d5\u30ed\u30fc\u30fb\u30e9\u30d9\u30eb\uff0820\u30d3\u30c3\u30c8\uff09\uff1aQoS\uff08\u30b5\u30fc\u30d3\u30b9\u54c1\u8cea\uff09\u3092\u6c7a\u5b9a\u3059\u308b\u3002<\/li>\n\n\n\n<li>\u30da\u30a4\u30ed\u30fc\u30c9\u9577\uff0816\u30d3\u30c3\u30c8\uff09\uff1a\u30c7\u30fc\u30bf\u7528\u306b\u4e88\u7d04\u3055\u308c\u305f\u9577\u3055\u3092\u793a\u3059\u3002&nbsp;<\/li>\n\n\n\n<li>\u6b21\u306e\u30d8\u30c3\u30c0\u30fc\uff088\u30d3\u30c3\u30c8\uff09\uff1a\u3053\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u306f\u6b21\u306e\u30d8\u30c3\u30c0\u30fc\u3092\u793a\u3059\u3002<\/li>\n\n\n\n<li>\u30db\u30c3\u30d7\u30ea\u30df\u30c3\u30c8\uff088\u30d3\u30c3\u30c8\uff09\uff1aTime to Live\u306f2\u3064\u306eIPv6\u30ce\u30fc\u30c9\u9593\u306e\u6700\u5927\u30db\u30c3\u30d7\uff08\u30ea\u30f3\u30af\uff09\u6570\u3092\u5236\u9650\u3059\u308b\u3002<\/li>\n\n\n\n<li>\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\uff08128\u30d3\u30c3\u30c8\uff09\uff1a\u30d1\u30b1\u30c3\u30c8\u306e\u9001\u4fe1\u5143\uff08\u30c7\u30e5\u30a2\u30eb\u30b9\u30bf\u30c3\u30af\u74b0\u5883\u3067\u306fIPv4\u307e\u305f\u306fIPv6\uff09\u3002<\/li>\n\n\n\n<li>\u5b9b\u5148\u30a2\u30c9\u30ec\u30b9\uff08128\u30d3\u30c3\u30c8\uff09\uff1a\u30d1\u30b1\u30c3\u30c8\u306e\u884c\u304d\u5148\uff08\u30c7\u30e5\u30a2\u30eb\u30b9\u30bf\u30c3\u30af\u74b0\u5883\u3067\u306fIPv4\u307e\u305f\u306fIPv6\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<p>IPv6\u5236\u5fa1\u30d1\u30b1\u30c3\u30c8\u306f\u3001\u30d5\u30e9\u30b0\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\uff08IPSec\uff09\u306a\u3069\u3001\u30d1\u30b1\u30c3\u30c8\u306e\u8a73\u7d30\u60c5\u5831\u3092\u542b\u3080\u3088\u3046\u306b\u62e1\u5f35\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u308b\u3002\u6700\u5f8c\u306e\u62e1\u5f35\u3067\u3042\u308bIPSec\u306f\u3001\u4eca\u65e5\u4e3b\u8981\u306aVPN\u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u3057\u3066\u5e83\u304f\u4f7f\u308f\u308c\u3066\u304a\u308a\u3001IPv6\u306b\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u308b\u3002<\/p>\n\n\n\n<div style=\"height:19px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"03\">11\u306e\u4e3b\u306a\u9055\u3044\uff1aIPv4\u3068IPv6\u306e\u9055\u3044\u3002&nbsp;<\/h2>\n\n\n\n<p>\u4ee5\u4e0b\u306f\u3001IPv4\u3068IPv6\u306e\u4e3b\u306a11\u306e\u76f8\u9055\u70b9\u3067\u3042\u308b\u3002&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1.IPv6\u306f\u6c17\u306e\u9060\u304f\u306a\u308b\u3088\u3046\u306a\u6570\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u63d0\u4f9b\u3059\u308b\u3002&nbsp;<\/h3>\n\n\n\n<p>IPv6 was introduced to address the depletion of IPv4 addresses. IPv4\u2019s address size is 32 bits, while IPv6\u2019s address size is 128 bits. IPv6\u2019s format can support a mind-boggling high number of network address combinations. While Ipv4 results in around 4 billion addresses, IPv6 can give around 340 trillion trillion trillion IP addresses. From the day of IPv6 development until today, the <a href=\"https:\/\/www.rapidseedbox.com\/ja\/blog\/what-is-ipv6\" target=\"_blank\" rel=\"noreferrer noopener\">IPv6 protocol<\/a> has addressed the IPv4 exhaustion problem and provides additional benefits and services.&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.IPv4\u3068IPv6\u3067\u306f\u30a2\u30c9\u30ec\u30b9\u8868\u8a18\u304c\u7570\u306a\u308b\u3002&nbsp;<\/h3>\n\n\n\n<p>IPv4\u30a2\u30c9\u30ec\u30b9\u306f10\u9032\u6570\u8868\u8a18\u3092\u4f7f\u3044\u3001IPv6\u30a2\u30c9\u30ec\u30b9\u306f16\u9032\u6570\u8868\u8a18\u3092\u4f7f\u3046\u3002IPv4\u306e\u65b9\u304c\u30b5\u30a4\u30ba\u304c\u5c0f\u3055\u3044\uff0832\u30d3\u30c3\u30c8\uff09\u305f\u3081\u300110\u9032\u6570\u8868\u8a18\u3067\u66f8\u3044\u3066\u8a18\u61b6\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3042\u308a\u3001\u305d\u306e\u7d50\u679c4\u3064\u306e10\u9032\u6570\u306b\u306a\u308b\u3002\u3057\u304b\u3057\u3001IPv6\uff08128\u30d3\u30c3\u30c8\uff09\u309210\u9032\u6570\u3067\u4f7f\u7528\u3059\u308b\u3053\u3068\u306f\u4e0d\u53ef\u80fd\u306a\u306e\u3067\u3001IPv6\u30a2\u30c9\u30ec\u30b9\u306f16\u9032\u6570\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u540416\u9032\u6570\u306f4\u30d3\u30c3\u30c8\u3067\u5f62\u6210\u3055\u308c\u300132\u500b\u306e16\u9032\u6570\u306b\u306a\u308b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3.IPv6\u306b\u306f\u77ed\u7e2e\u6280\u8853\u304c\u3042\u308b-IPv4\u306b\u306f\u306a\u3044\u3002&nbsp;<\/h3>\n\n\n\n<p>IPv6\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306f\u30a2\u30c9\u30ec\u30b9\u6307\u5b9a\u6a5f\u80fd\u306e\u62e1\u5f35\u306b\u5f79\u7acb\u3064\u3002IPv6\u30a2\u30c9\u30ec\u30b9\u306f\u3001\u30c0\u30d6\u30eb\u30b3\u30ed\u30f3\u3068\u5148\u982d\u306e\u30bc\u30ed\u3092\u7701\u7565\u3057\u3066\u7701\u7565\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30c0\u30d6\u30eb\u30bb\u30df\u30b3\u30ed\u30f3\u306f\u3001IPv6\u30a2\u30c9\u30ec\u30b9\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u5168\u4f53\u3092\u7701\u7565\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001IPv6\u30a2\u30c9\u30ec\u30b9ff06:0:0:0:0:0:0:c3\u306f\u3001ff06::c3\u3068\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u7701\u7565\u306f\u3001IPv6\u30a2\u30c9\u30ec\u30b9\u306e\u8868\u8a18\u3092\u7c21\u7565\u5316\u3059\u308b\u305f\u3081\u306b\u884c\u308f\u308c\u307e\u3057\u305f\u3002\u307e\u305f\u3001\u30c0\u30d6\u30eb\u30b3\u30ed\u30f3(::)<strong> \u306f\u3001IPv6\u30a2\u30c9\u30ec\u30b9\u306e\u9023\u7d9a\u3059\u308b\u30bc\u30ed\u306e\u90e8\u5206\u3092\u7701\u7565\u3059\u308b\u305f\u3081\u306b\u4e00\u5ea6\u3060\u3051\u4f7f\u3046\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/strong>.\u3053\u308c\u306f\u66d6\u6627\u3055\u3092\u907f\u3051\u308b\u305f\u3081\u3067\u3042\u308b\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4.IPv6\u3068IPv4\u306e\u30a2\u30c9\u30ec\u30b9\u30bf\u30a4\u30d7\u3068\u30b9\u30b3\u30fc\u30d7\u306f\u7570\u306a\u308b\u3002&nbsp;<\/h3>\n\n\n\n<p>IPv6\u306b\u306f3\u7a2e\u985e\u306e\u30a2\u30c9\u30ec\u30b9\u304c\u3042\u308b\uff1a\u30b0\u30ed\u30fc\u30d0\u30eb\u30e6\u30cb\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u3001\u30e6\u30cb\u30fc\u30af\u30ed\u30fc\u30ab\u30eb\u30a2\u30c9\u30ec\u30b9\u3001\u30ea\u30f3\u30af\u30ed\u30fc\u30ab\u30eb\u30a2\u30c9\u30ec\u30b9\u3067\u3059\u3002IPv6\u30b0\u30ed\u30fc\u30d0\u30eb\u30e6\u30cb\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3055\u308c\u308bIPv4\u30d1\u30d6\u30ea\u30c3\u30af\u30a2\u30c9\u30ec\u30b9\u3068\u540c\u3058\u76ee\u7684\u3092\u679c\u305f\u3059\u3002\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u5f53\u5c40\u306f\u3053\u308c\u3089\u306e\u30a2\u30c9\u30ec\u30b9\u3092ISP\u307e\u305f\u306fLIR\u306b\u5272\u308a\u5f53\u3066\u3001ISP\u307e\u305f\u306fLIR\u306f\u30ea\u30fc\u30b9\u307e\u305f\u306f\u8ca9\u58f2\u3092\u901a\u3058\u3066\u30a2\u30c9\u30ec\u30b9\u3092\u5272\u308a\u5f53\u3066\u307e\u3059\u3002IPv4\u3068IPv6\u306e\u9055\u3044\u306f\u3001\u5185\u90e8\u30ed\u30fc\u30ab\u30eb\u30a2\u30c9\u30ec\u30b9\u307e\u305f\u306f\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30a2\u30c9\u30ec\u30b9\u7a7a\u9593\u306b\u3042\u308b\u3002IPv4\u306f\u4e88\u7d04\u756a\u53f7\u7bc4\u56f2\uff08\u30af\u30e9\u30b9A\u3001B\u3001C\uff09\u3092\u6301\u3064\u5185\u90e8\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u7528\u3057\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u4e00\u822c\u306b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3055\u308c\u308b\u3053\u3068\u306f\u306a\u3044\u3002\u3057\u304b\u3057\u3001IPv6\u306f\u30e6\u30cb\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u3068\u30ea\u30f3\u30af\u30ed\u30fc\u30ab\u30eb\u30a2\u30c9\u30ec\u30b9\u306e2\u7a2e\u985e\u306e\u5185\u90e8\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u7528\u3059\u308b\u3002\u30e6\u30cb\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u306f\u5185\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u307e\u305f\u306fVPN\u3067\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3055\u308c\u3001\u30ea\u30f3\u30af\u30ed\u30fc\u30ab\u30eb\u306f\u5358\u4e00\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c9\u30e1\u30a4\u30f3\u306b\u4f7f\u7528\u3055\u308c\u3001\u5916\u90e8\u306b\u3082\u5185\u90e8\u306b\u3082\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3055\u308c\u306a\u3044\u3002&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5.IPv6\u306e\u30b0\u30ed\u30fc\u30d0\u30eb\u30e6\u30cb\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u306f\u3001IPv4\u306e\u30d1\u30d6\u30ea\u30c3\u30af\u30a2\u30c9\u30ec\u30b9\u3068\u306f\u7570\u306a\u308b\u3002&nbsp;<\/h3>\n\n\n\n<p>IPv4\u3068IPv6\u306e\u30a2\u30c9\u30ec\u30b9\u5f62\u5f0f\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u30db\u30b9\u30c8\u306b\u5206\u5272\u3055\u308c\u3001\u3055\u3089\u306b\u30b5\u30d6\u30cd\u30c3\u30c8\u306b\u8d77\u56e0\u3059\u308b\u7b2c3\u306e\u90e8\u5206\u304c\u3042\u308b\u3002\u3057\u304b\u3057\u3001\u305d\u308c\u3067\u3082IPv6\u306f\u3001\u3088\u308a\u5927\u304d\u306a\u30b5\u30a4\u30ba\u306b\u5bfe\u5fdc\u3059\u308b\u305f\u3081\u306b\u3001\u3055\u3089\u306b\u5fae\u8abf\u6574\u3092\u52a0\u3048\u3066\u8a2d\u8a08\u3059\u308b\u5fc5\u8981\u304c\u3042\u3063\u305f\u3002IPv6\u306f\u30db\u30b9\u30c8\u306e\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u5168\u4f53\u3092\u7701\u7565\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30c6\u30fc\u30d6\u30eb\u306e\u30b5\u30a4\u30ba\u3092\u5c0f\u3055\u304f\u3057\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u3088\u308a\u9ad8\u901f\u3067\u52b9\u7387\u7684\u306a\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u884c\u3046\u306e\u306b\u5f79\u7acb\u3064\u6a5f\u80fd\u3060\u3002\u4f8b\u3048\u3070\u3001IPv6\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\uff08\u4e0a\u4f4d64\u30d3\u30c3\u30c8\uff09\u306f\u5358\u4e00\u306e\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\uff08\/48\u3084\/64\u306a\u3069\uff09\u306b\u307e\u3068\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u3001\u30db\u30b9\u30c8\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u306f\u5b8c\u5168\u306b\u7701\u7565\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">6.\u30ed\u30fc\u30ab\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u5272\u308a\u5f53\u3066\u306e\u9055\u3044\uff08DHCP\u3068\u81ea\u5df1\u5272\u308a\u5f53\u3066\uff09\u3002<\/h3>\n\n\n\n<p>IPv4\u3067\u306f\u3001\u30ed\u30fc\u30ab\u30eb\u30a2\u30c9\u30ec\u30b9\u306f\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u306eDHCP\u30b5\u30fc\u30d0\u30fc\u307e\u305f\u306f\u624b\u52d5\u8a2d\u5b9a\u306b\u3088\u3063\u3066\u5272\u308a\u5f53\u3066\u3089\u308c\u3001\u5c11\u6570\u306e\u30b1\u30fc\u30b9\u3067\u306f\u3001\u30b5\u30d6\u30cd\u30c3\u30c8\u5185\u306e\u30ea\u30f3\u30af\u30ed\u30fc\u30ab\u30ebIP\uff08169.254.0.0\/16\uff09\u3092\u81ea\u5df1\u5272\u308a\u5f53\u3066\u3059\u308b\u3002IPv6\u30ed\u30fc\u30ab\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u5834\u5408\u3001DHCP\u30b5\u30fc\u30d0\u30fc\u3092\u4ecb\u3057\u305f\u52d5\u7684\u5272\u308a\u5f53\u3066\u304c\u53ef\u80fd\u3067\u3059\u3002 <a href=\"https:\/\/www.rapidseedbox.com\/blog\/guide-to-dhcpv6\" target=\"_blank\" rel=\"noreferrer noopener\">DHCPv6<\/a> \u3082\u53ef\u80fd\u3060\u304c\u3001\u5fc5\u9808\u3067\u306f\u306a\u3044\u3002IPv6\u30a2\u30c9\u30ec\u30b9\u306f2\u7a2e\u985e\u306e\u81ea\u52d5\u8a2d\u5b9a\uff08\u30b9\u30c6\u30fc\u30c8\u30d5\u30eb\u3068\u30b9\u30c6\u30fc\u30c8\u30ec\u30b9\uff09\u3092\u4f7f\u3063\u3066\u52d5\u7684\u306b\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002IPv6\u306e\u30b9\u30c6\u30fc\u30c8\u30d5\u30eb\u81ea\u52d5\u8a2d\u5b9a\u307e\u305f\u306fDHCPv6\u306f\u3001DHCP\u306eIPv4\u3068\u4f3c\u3066\u3044\u307e\u3059\u304c\u3001\u30b9\u30c6\u30fc\u30c8\u30ec\u30b9\u81ea\u52d5\u8a2d\u5b9a\u306f\u7570\u306a\u308a\u3001\u73fe\u5728\u3067\u306fIPv6\u74b0\u5883\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30e2\u30fc\u30c9\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002IPv6\u306e\u30b9\u30c6\u30fc\u30c8\u30ec\u30b9\u81ea\u52d5\u8a2d\u5b9a\u3067\u306f\u3001\u62e1\u5f35\u4e00\u610f\u8b58\u5225\u5b50\uff08EUI-64\uff09\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3092\u4f7f\u7528\u3057\u3066\u3001\u4e0b\u4f4d64\u30d3\u30c3\u30c8\uff08\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9ID\uff09\u304c\u7269\u7406\u30a2\u30c9\u30ec\u30b9\uff08MAC\uff09\u304b\u3089\u5c0e\u51fa\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">7.IPv6\u306fIPv4\u3088\u308a\u3082\u30d8\u30c3\u30c0\u30fc\u304c\u30b9\u30ea\u30e0\u3067\u3042\u308b\u3002&nbsp;<\/h3>\n\n\n\n<p>IPv4\u3067\u306f\u30d8\u30c3\u30c0\u30fc\u9577\u306f60\u30d0\u30a4\u30c8\u306b\u5236\u9650\u3055\u308c\u3066\u3044\u308b\u304c\u3001IPv6\u3067\u306f\u6700\u592740\u30d0\u30a4\u30c8\u3067\u3042\u308b\u3002\u305d\u306e\u7406\u7531\u306e\u4e00\u3064\u306f\u3001IPv6\u306e\u30d8\u30c3\u30c0\u30fc\u306fIPv4\u30d1\u30b1\u30c3\u30c8\u306e\u3088\u3046\u306b\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u4f7f\u7528\u3057\u306a\u3044\u304b\u3089\u3067\u3042\u308b\u3002\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\u30d5\u30a3\u30fc\u30eb\u30c9\u306fIP\u3067\u306f\u5197\u9577\u3067\u3042\u308a\u3001\u30a8\u30e9\u30fc\u30c1\u30a7\u30c3\u30af\u306fTCP\u306e\u3088\u3046\u306a\u4ed6\u306e\u30ec\u30a4\u30e4\u30fc\u3067\u5b9f\u884c\u3055\u308c\u308b\u304b\u3089\u3067\u3042\u308b\u30022\u3064\u30013\u3064\u306e\u30ec\u30a4\u30e4\u30fc\u3067\u30c1\u30a7\u30c3\u30af\u30b5\u30e0\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3001\u518d\u8a08\u7b97\u3059\u308b\u3053\u3068\u306f\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u975e\u52b9\u7387\u306b\u3059\u308b\u3002\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u30fb\u30d5\u30a3\u30fc\u30eb\u30c9\u3082\u305d\u306e\u4e00\u4f8b\u3067\u3042\u308b\u3002\u30d5\u30e9\u30b0\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u306fIPv6\u3088\u308a\u4e0b\u306e\u30ec\u30a4\u30e4\u3068\u9001\u4fe1\u8005\u304c\u63d0\u4f9b\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002IPv6\u3067\u306f\u3001\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u30d5\u30a3\u30fc\u30eb\u30c9\u306f\u5fc5\u9808\u304b\u3089\u30aa\u30d7\u30b7\u30e7\u30f3\u306b\u79fb\u52d5\u3057\u305f\u3002&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">8.IPv4\u306b\u306fNAT\u304c\u5fc5\u8981\u3060\u304c\u3001IPv6\u306b\u306f\u5fc5\u8981\u306a\u3044\u3002&nbsp;<\/h3>\n\n\n\n<p>IPv4\u306e\u4e16\u754c\u3067\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u5909\u63db\uff08NAT\uff09\u306fIP\u30a2\u30c9\u30ec\u30b9\u7a7a\u9593\u3092\u518d\u5229\u7528\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3042\u308b\u3002NAT\u306f\u30d1\u30d6\u30ea\u30c3\u30afIP\u30a2\u30c9\u30ec\u30b9\u3092\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5b89\u5168\u6027\u3092\u9ad8\u3081\u3001\u30a2\u30c9\u30ec\u30b9\u7a7a\u9593\u3092\u7bc0\u7d04\u3057\u307e\u3059\u3002\u305d\u308c\u3067\u3082\u3001NAT\u306e\u5b9f\u88c5\u304c\u60aa\u3044\u3068\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u3088\u308a\u9045\u304f\u3001\u3088\u308a\u8907\u96d1\u306b\u306a\u308a\u307e\u3059\u3002IPv6\u306b\u306f\u30a2\u30c9\u30ec\u30b9\u4e0d\u8db3\u304c\u306a\u3044\u305f\u3081\u3001NAT\u306f\u5fc5\u8981\u306a\u3044\u3002NAT\u304c\u63d0\u4f9b\u3059\u308b\u8ffd\u52a0\u306e\u30a2\u30c9\u30ec\u30b9\u7a7a\u9593\u306f\u3001IPv6\u306e\u30a2\u30c9\u30ec\u30b9\u30b9\u30b3\u30fc\u30d7\u3067\u53ef\u80fd\u306a\u5de8\u5927\u306a\u30a2\u30c9\u30ec\u30b9\u7a7a\u9593\u3068\u306f\u6bd4\u8f03\u306b\u306a\u3089\u306a\u3044\u3060\u308d\u3046\u3002\u5b9f\u969b\u3001IPv6\u3092\u4f7f\u3044\u305f\u3044\u65b0\u3057\u3044\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5b9f\u88c5\u306f\u3001NAT\u304b\u3089\u96e2\u308c\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3059\u308b\u3002&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">9.IPv4\u3067\u306fIPSec\u3092\u5b9f\u88c5\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u304c\u3001IPv6\u3067\u306f\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u308b\u3002&nbsp;<\/h3>\n\n\n\n<p>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30fb\u30d7\u30ed\u30c8\u30b3\u30eb\u30fb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\uff08IPsec\uff09\u306f\u3001\u30c7\u30fc\u30bf\u30fb\u30d1\u30b1\u30c3\u30c8\u306e\u8a8d\u8a3c\u3068\u6697\u53f7\u5316\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u63d0\u4f9b\u3059\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30fb\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3042\u308b\u3002IPSec\u306f\u4eee\u60f3\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08VPN\uff09\u3067\u3088\u304f\u4f7f\u308f\u308c\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3042\u308b\u3002IPv4\u3067\u306f\u3001IPSec\u306f\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u3067\u3059\u304c\u3001IPv6\u3067\u306f\u30d3\u30eb\u30c8\u30a4\u30f3\u3067\u5e38\u306b\u5229\u7528\u53ef\u80fd\u3067\u3059\u3002IPSec\u306f\u307e\u3060\u30aa\u30d7\u30b7\u30e7\u30f3\uff08\u3064\u307e\u308a\u3001\u7121\u52b9\u306b\u3067\u304d\u308b\uff09\u3067\u3059\u304c\u3001IPv6\u306e\u65b0\u3057\u3044\u5b9f\u88c5\u306b\u306fIPSec\u306e\u30b5\u30dd\u30fc\u30c8\u304c\u4ed8\u3044\u3066\u3044\u307e\u3059\u3002IPSec\u304cIPv6\u306b\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u308b\u3068\u306f\u3044\u3048\u3001IPv4\u3088\u308a\u3082\u81ea\u52d5\u7684\u306b\u5b89\u5168\u6027\u304c\u9ad8\u304f\u306a\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002IPSec\u306e\u60aa\u3044\u5b9f\u88c5\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u5168\u304f\u306a\u3044\u306e\u3068\u540c\u3058\u304f\u3089\u3044\u5b89\u5168\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">10.IPv4\u306f\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u3001IPv6\u306f\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u3068\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8\u3002&nbsp;<\/h3>\n\n\n\n<p>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30fb\u30e1\u30c3\u30bb\u30fc\u30b8\u306fIPv4\u3067\u5229\u7528\u53ef\u80fd\u3067\u3059\u3002\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30fb\u30e1\u30c3\u30bb\u30fc\u30b8\u3067\u306f\u3001\u3069\u306e\u30c7\u30d0\u30a4\u30b9\u3082\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u3059\u3079\u3066\u306e\u30ce\u30fc\u30c9\u306b\u30d1\u30b1\u30c3\u30c8\u3092\u9001\u4fe1\u3067\u304d\u307e\u3059\u3002\u305d\u308c\u3067\u3082\u3001IPv4\u306e\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30e1\u30c3\u30bb\u30fc\u30b8\u306f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u554f\u984c\u304b\u3089\u5236\u9650\u3055\u308c\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002IPv6\u3067\u306f\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u306e\u6982\u5ff5\u306f\u3068\u3063\u304f\u306b\u306a\u304f\u306a\u3063\u3066\u3044\u308b\u3002IPv6\u306f\u540c\u69d8\u306e\u6a5f\u80fd\u3092\u63d0\u4f9b\u3059\u308b\u305f\u3081\u306b\u3001\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u3084\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c6\u30a3\u30f3\u30b0\u3068\u3044\u3063\u305f\u4ed6\u306e\u6280\u8853\u306b\u4f9d\u5b58\u3057\u3066\u3044\u308b\u3002\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u306f\u3001\u7279\u5b9a\u306e\u30b0\u30eb\u30fc\u30d7\u306b\u3088\u3063\u3066\u5b9a\u7fa9\u3055\u308c\u305f\u7279\u5b9a\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u9001\u4fe1\u3055\u308c\u308b\u30e1\u30c3\u30bb\u30fc\u30b8\u3067\u3042\u308b\u3002\u3055\u3089\u306b\u3001IPv6\u3067\u306f\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8\u3068\u3044\u3046\u65b0\u3057\u3044\u6982\u5ff5\u304c\u5c0e\u5165\u3055\u308c\u305f\u3002\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8\u3068\u306f\u3001\u30c7\u30d0\u30a4\u30b9\u306e\u30b0\u30eb\u30fc\u30d7\u306e\u30e1\u30f3\u30d0\u30fc\u5168\u54e1\u306b\u9001\u4fe1\u3055\u308c\u308b\u30e1\u30c3\u30bb\u30fc\u30b8\u3067\u3042\u308b\u3002&nbsp;<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">11.IPv4\u3068IPv6\u306e\u901f\u5ea6\u6bd4\u8f03\u3002\u3069\u3061\u3089\u304c\u901f\u3044\u304b\uff1f&nbsp;<\/h3>\n\n\n\n<p>Regarding speed, there are only slight differences between the two protocols. In theory, IPv6 is supposed to be <a href=\"https:\/\/www.rapidseedbox.com\/blog\/ipv6-faster-than-ipv4\" target=\"_blank\" rel=\"noreferrer noopener\">slightly faster<\/a> since it doesn\u2019t need NAT (Network Address Translate) to map an IP address to another. However, IPv6 has longer data packets, so theoretically, it should be slower than IPv4. As shown in the previous section, IPv6 uses 128 bits compared to IPv4, which uses 32 bits.<\/p>\n\n\n\n<p>\u3067\u306f\u3001IPv4\u3068IPv6\u306e\u901f\u5ea6\u306e\u9055\u3044\u306f\u73fe\u5b9f\u306b\u306f\u3069\u3046\u306a\u306e\u3060\u308d\u3046\u304b\u3002\u4eca\u306e\u3068\u3053\u308d\u3001\u3053\u306e2\u3064\u306e\u901f\u5ea6\u306e\u9055\u3044\u3092\u751f\u307f\u51fa\u3057\u3066\u3044\u308b\u306e\u306f\u3001IPv4\uff08\u57fa\u76e4\u3068\u306a\u308b\u3059\u3079\u3066\u306e\u30a4\u30f3\u30d5\u30e9\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306a\u3069\u3092\u542b\u3080\uff09\u304cIPv6\u3088\u308a\u3082\u306f\u308b\u304b\u306b\u78ba\u7acb\u3055\u308c\u3001\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3001\u6700\u9069\u5316\u3055\u308c\u3066\u3044\u308b\u3068\u3044\u3046\u3053\u3068\u3060\u3002\u3057\u304b\u3057\u3001IPv6\u306b\u306fNAT\u304c\u306a\u304f\u3001\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u6280\u8853\u306b\u4f9d\u5b58\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u76f4\u63a5\u63a5\u7d9a\u3067\u30c6\u30b9\u30c8\u3059\u308b\u5834\u5408\u306fIPv6\u306e\u65b9\u304c\u901f\u3044\u3002\u305d\u306e\u305f\u3081\u3001IPv6\u6280\u8853\u304c\u3088\u308a\u6210\u719f\u3059\u308b\u306b\u3064\u308c\u3066\u3001\u305d\u306e\u901f\u5ea6\u306f\u3088\u308a\u901f\u304f\u306a\u308b\u3067\u3057\u3087\u3046\u3002\u901f\u5ea6\u306b\u95a2\u3057\u3066\u306f\u308b\u304b\u306b\u512a\u308c\u3066\u3044\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u4f8b\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002 <a href=\"https:\/\/www.rapidseedbox.com\/ja\/blog\/why-should-i-use-an-ipv6-proxy\" target=\"_blank\" rel=\"noreferrer noopener\">IPv6\u30d7\u30ed\u30ad\u30b7<\/a>.<\/p>\n\n\n\n<div style=\"height:19px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"04\">4.IPv6 vs. IPv4\uff1a\u76f8\u9055\u70b9\u30c1\u30e3\u30fc\u30c8\u3002<\/h2>\n\n\n\n<p>\u3055\u3066\u3001\u305d\u308c\u305e\u308c\u306eIP\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u7406\u89e3\u3057\u305f\u3068\u3053\u308d\u3067\u3001\u6839\u672c\u7684\u306a\u9055\u3044\u3092\u5b9a\u7fa9\u3057\u3066\u307f\u3088\u3046\u3002\u305d\u306e\u305f\u3081\u306b\u3001VS.\u30c1\u30e3\u30fc\u30c8\u3092\u4f7f\u3063\u3066\u8aac\u660e\u3057\u3088\u3046\u3002 <strong>\u4ee5\u4e0b\u306e\u8868\u306f\u3001IPv4\u30a2\u30c9\u30ec\u30b9\u3068IPv6\u30a2\u30c9\u30ec\u30b9\u306e\u9055\u3044\u3092\u6bd4\u8f03\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><td><\/td><td><strong>IPv4<\/strong><\/td><td><strong>IPv6<\/strong><\/td><\/tr><tr><td>\u914d\u5099\u3055\u308c\u305f\u5e74&nbsp;<\/td><td>1981<\/td><td>1999<\/td><\/tr><tr><td>\u30a2\u30c9\u30ec\u30b9\u30fb\u30b5\u30a4\u30ba\uff08\u30d3\u30c3\u30c8\uff09<\/td><td>32\u30d3\u30c3\u30c8<\/td><td>128\u30d3\u30c3\u30c8<\/td><\/tr><tr><td>\u8868\u8a18\u3002&nbsp;<\/td><td>2\u9032\u65704\u30aa\u30af\u30c6\u30c3\u30c8\u306f10\u9032\u6570\u3067\u8868\u3055\u308c\u308b\u3002&nbsp;<\/td><td>8\u3064\u306e2\u9032\u65704\u9032\u6570\u306f16\u9032\u6570\u3067\u8868\u3055\u308c\u308b\u3002&nbsp;<\/td><\/tr><tr><td>\u30d5\u30a9\u30fc\u30de\u30c3\u30c8<\/td><td>192.168.0.0\/24<\/td><td>2001:db8::\/48<\/td><\/tr><tr><td>\u30d1\u30b1\u30c3\u30c8\u30b5\u30a4\u30ba<\/td><td>576\u30d0\u30a4\u30c8\uff08\u65ad\u7247\u5316\u304c\u5fc5\u8981\uff09<\/td><td>1280\u30d0\u30a4\u30c8\uff08\u30d5\u30e9\u30b0\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u306a\u3057\uff09<\/td><\/tr><tr><td>\u4f4f\u6240\u6570<\/td><td>2^32 \u2252 40\u5104&nbsp;<\/td><td>2^128 \u2252 340\u5146\u5146\u5146\u5186<\/td><\/tr><tr><td>\u30da\u30a4\u30ed\u30fc\u30c9\uff08\u30c7\u30fc\u30bf\uff09<\/td><td>\u30da\u30a4\u30ed\u30fc\u30c9\u9577\u30d5\u30a3\u30fc\u30eb\u30c9 16\u30d3\u30c3\u30c8\u9577\uff08\u30c7\u30fc\u30bf\uff09<\/td><td>\u30da\u30a4\u30ed\u30fc\u30c9\u9577\u30d5\u30a3\u30fc\u30eb\u30c9 16\u30d3\u30c3\u30c8\u9577\uff08\u30c7\u30fc\u30bf\u7528\uff09<\/td><\/tr><tr><td><a href=\"https:\/\/www.rapidseedbox.com\/blog\/ipv6-loopback-address\" target=\"_blank\" rel=\"noreferrer noopener\">\u30eb\u30fc\u30d7\u30d0\u30c3\u30af\u30a2\u30c9\u30ec\u30b9<\/a><\/td><td>120.0.0.1<\/td><td>::1<\/td><\/tr><tr><td>\u30d8\u30c3\u30c0\u30fc<\/td><td>\u53ef\u5909\u9577\u30d8\u30c3\u30c0\u30fc\u3002&nbsp;<\/td><td>\u56fa\u5b9a\u9577\u30d8\u30c3\u30c0\u30fc\u3002<\/td><\/tr><tr><td>\u30c0\u30a4\u30ca\u30df\u30c3\u30af\u30fb\u30a2\u30c9\u30ec\u30b9<\/td><td>\u30c7\u30a3\u30fc\u30a8\u30a4\u30c1\u30b7\u30fc\u30d4\u30fc<\/td><td>DHCPv6\u307e\u305f\u306fSLAAC\u3002<\/td><\/tr><tr><td>\u65ad\u7247\u5316\u3002<\/td><td>\u30eb\u30fc\u30bf\u30fc\u3068\u9001\u4fe1\u30db\u30b9\u30c8\u3002<\/td><td>\u9001\u4fe1\u8005\u306e\u307f\u3002<\/td><\/tr><tr><td>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8<\/td><td>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u5229\u7528\u3067\u304d\u308b\u3002<\/td><td>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u306a\u3057\u3002(\u3057\u304b\u3057\u3001\u4f3c\u305f\u3088\u3046\u306a\u6a5f\u80fd\u306e\u305f\u3081\u306b\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u3092\u4f7f\u7528\u3059\u308b\uff09<\/td><\/tr><tr><td>IPSec<\/td><td>\u30aa\u30d7\u30b7\u30e7\u30f3<\/td><td>\u5185\u8535\u3002\u3044\u3064\u3067\u3082\u4f7f\u7528\u53ef\u80fd\u3002&nbsp;<\/td><\/tr><tr><td>L3-L2\u89e3\u50cf\u5ea6&nbsp;<\/td><td>ARP\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8<\/td><td>\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u30cd\u30a4\u30d0\u30fc\u52e7\u8a98\u3002<\/td><\/tr><tr><td>\u30eb\u30fc\u30bf\u30fc\u30c7\u30a3\u30b9\u30ab\u30d0\u30ea\u30fc<\/td><td>\u30aa\u30d7\u30b7\u30e7\u30f3<\/td><td>\u5fc5\u9808<\/td><\/tr><tr><td>\u30d5\u30ed\u30fc\u8b58\u5225<\/td><td>\u5165\u624b\u4e0d\u53ef<\/td><td>IPv6\u3067\u5229\u7528\u53ef\u80fd<\/td><\/tr><tr><td>\u30c1\u30a7\u30c3\u30af\u30b5\u30e0<\/td><td>IPv4\u3067\u5229\u7528\u53ef\u80fd&nbsp;<\/td><td>\u5fc5\u8981\u306a\u3044\u3002<\/td><\/tr><tr><td>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 <\/td><td>\u5fc5\u9808\u3067\u306f\u306a\u3044<\/td><td>IPSec\u5185\u8535 <\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div style=\"height:19px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"05\">5.IPv4\u3068IPv6\u306eFAQ\u3002&nbsp;<\/h2>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>a.IPv6\u306f\u4f55\u306b\u4f7f\u308f\u308c\u308b\u306e\u3067\u3059\u304b\uff1f&nbsp;<\/strong><\/h4>\n\n\n\n<p>IPv6\u306fIPv4\u306e\u30a2\u30c9\u30ec\u30b9\u67af\u6e07\u554f\u984c\u306b\u5bfe\u51e6\u3059\u308b\u305f\u3081\u306b\u8a2d\u8a08\u3055\u308c\u305f\u3002IPv4\u3068\u540c\u3058\u3088\u3046\u306b\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e\u30c7\u30d0\u30a4\u30b9\u306b\u30a2\u30c9\u30ec\u30b9\u3068\u8b58\u5225\u3092\u63d0\u4f9b\u3059\u308b\u304c\u3001\u305d\u306e\u898f\u6a21\u306f\u306f\u308b\u304b\u306b\u5927\u304d\u3044\u3002IPv6\u306f\u3001IoT\u30c7\u30d0\u30a4\u30b9\u3001\u4eee\u60f3\u5316\u3001\u30af\u30e9\u30a6\u30c9\u306e\u5897\u52a0\u306b\u5bfe\u5fdc\u3059\u308b\u306e\u306b\u5f79\u7acb\u3064\u3060\u308d\u3046\u3002&nbsp;<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>b.\u3069\u3061\u3089\u304c\u901f\u3044\u304b\uff1aIPv4\u304bIPv6\u304b\uff1f&nbsp;<\/strong><\/h4>\n\n\n\n<p>\u3069\u306e\u30e1\u30ab\u30cb\u30ba\u30e0\u3082\u4ed6\u3088\u308a\u3082\u9ad8\u901f\u3067\u306f\u306a\u3044\u3002IPv6\u306f\u3088\u308a\u30b9\u30ea\u30e0\u3067\u30b7\u30f3\u30d7\u30eb\u306a\u30d8\u30c3\u30c0\u30fc\u3092\u63d0\u4f9b\u3057\u3001\u3088\u308a\u52b9\u7387\u7684\u306a\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u30d1\u30b1\u30c3\u30c8\u51e6\u7406\u3092\u53ef\u80fd\u306b\u3059\u308b\u3002NAT\u304b\u3089\u306e\u89e3\u653e\u306b\u52a0\u3048\u3066\u3002\u3057\u304b\u3057 <a href=\"https:\/\/www.rapidseedbox.com\/blog\/best-practices-for-ipv6-transitioning\" target=\"_blank\" rel=\"noreferrer noopener\">IPv6\u306e\u5b9f\u88c5<\/a> \u305d\u308c\u3067\u3082IPv4\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f\u304b\u306a\u308a\u9045\u304f\u306a\u308b\u3002&nbsp;<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>c.\u3069\u3061\u3089\u304c\u3088\u308a\u5b89\u5168\u304b\uff1aIPv6\u3068IPv4\u3067\u306f\u3069\u3061\u3089\u304c\u5b89\u5168\u304b\uff1f&nbsp;<\/strong><\/h4>\n\n\n\n<p>ipv4\u3068ipv6\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u9055\u3044\u306f\u3001\u5b9f\u88c5\u306b\u4f9d\u5b58\u3059\u308b\u3002IPv6\u3068IPv4\u3067\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a5f\u80fd\u3084\u8106\u5f31\u6027\u304c\u7570\u306a\u308b\u304b\u3089\u3060\u3002\u3057\u304b\u3057\u3001IPv6\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u8003\u616e\u3057\u3066\u8a2d\u8a08\u3055\u308c\u3066\u304a\u308a\u3001IPv4\u306b\u306f\u306a\u3044\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a5f\u80fd\u304c\u3044\u304f\u3064\u304b\u542b\u307e\u308c\u3066\u3044\u308b\u3002\u4f8b\u3048\u3070\u3001IPv6\u306b\u306fIPsec\uff08\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30fb\u30d7\u30ed\u30c8\u30b3\u30eb\u30fb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\uff09\uff08VPN\u30d7\u30ed\u30c8\u30b3\u30eb\uff09\u304c\u5fc5\u9808\u6a5f\u80fd\u3068\u3057\u3066\u542b\u307e\u308c\u3066\u304a\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u6697\u53f7\u5316\u3068\u8a8d\u8a3c\u3092\u63d0\u4f9b\u3059\u308b\u3002\u3055\u3089\u306b\u3001IPv6\u306f\u3088\u308a\u5927\u304d\u306a\u30d1\u30b1\u30c3\u30c8\u30b5\u30a4\u30ba\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u653b\u6483\u8005\u306f\u30d5\u30e9\u30b0\u30e1\u30f3\u30c6\u30fc\u30b7\u30e7\u30f3\u653b\u6483\u306a\u3069\u306e\u7279\u5b9a\u306e\u7a2e\u985e\u306e\u653b\u6483\u3092\u884c\u3046\u3053\u3068\u304c\u96e3\u3057\u304f\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u4e00\u65b9\u3001IPv4\u306f\u53e4\u3044\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3042\u308a\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u7b2c\u4e00\u306b\u8003\u3048\u3066\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002IPv4\u3082IPsec\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u3053\u308c\u306f\u5fc5\u9808\u306e\u6a5f\u80fd\u3067\u306f\u306a\u304f\u3001\u591a\u304f\u306e\u30c7\u30d0\u30a4\u30b9\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306fIPsec\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u305b\u3093\u3002 <\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>d.VPN\u306e\u305f\u3081\u306eIPv4\u3068IPv6\uff1f<\/strong><\/h4>\n\n\n\n<p>\u3069\u3061\u3089\u3082VPN\u306b\u4f7f\u7528\u3067\u304d\u308b\u304c\u3001\u8003\u616e\u3059\u3079\u304d\u70b9\u304c\u3044\u304f\u3064\u304b\u3042\u308b\u3002IPv4\u306f\u3088\u308a\u53e4\u304f\u3001\u3088\u308a\u5e83\u304f\u4f7f\u308f\u308c\u3066\u3044\u308b\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u591a\u304f\u306eVPN\u306f\u3044\u307e\u3060\u306bIPv4\u306e\u307f\u306b\u4f9d\u5b58\u3057\u3066\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u3001VPN\u306b\u95a2\u3057\u3066\u306f\u3001IPv6\u306b\u306fIPv4\u3088\u308a\u3082\u512a\u308c\u305f\u70b9\u304c\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u3002IPv6\u306f\u3001\u5185\u8535\u306eIPsec\u6697\u53f7\u5316\u3068\u8a8d\u8a3c\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3001VPN\u63a5\u7d9a\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305fIPv6\u3067\u306f\u3001IPv4\u306b\u4f9d\u5b58\u3059\u308bVPN\u3067\u554f\u984c\u3068\u306a\u308bNAT\u306e\u554f\u984c\u3082\u56de\u907f\u3067\u304d\u308b\u3002\u3057\u304b\u3057\u6b8b\u5ff5\u306a\u304c\u3089\u3001IPv6\u306f\u307e\u3060IPv4\u307b\u3069\u5e83\u304f\u63a1\u7528\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002\u591a\u304f\u306e\u7d44\u7e54\u3084\u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306f\u307e\u3060IPv6\u306b\u5b8c\u5168\u306b\u79fb\u884c\u3057\u3066\u3044\u307e\u305b\u3093\u3002\u307e\u305f\u3001IPv6\u306eVPN\u63a5\u7d9a\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u306a\u3044VPN\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>d.\u30b2\u30fc\u30e0\u306b\u304a\u3051\u308bIPv6\u3068IPv4\u306e\u6bd4\u8f03\uff1f&nbsp;<\/strong><\/h4>\n\n\n\n<p>IP\u306f\u30a2\u30c9\u30ec\u30c3\u30b7\u30f3\u30b0\u3068\u8b58\u5225\u3092\u63d0\u4f9b\u3059\u308b\u3082\u306e\u3067\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3057\u304b\u3057\u3001\u30b2\u30fc\u30e0\u4e2d\u306bIPv4\u3068IPv6\u3092\u4f7f\u7528\u3059\u308b\u969b\u306b\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u9055\u3044\u304c\u3042\u308a\u307e\u3059\u3002\u4e3b\u306a\u9055\u3044\u306f\u3001IPv4\u306fNAT\u306b\u4f9d\u5b58\u3059\u308b\u305f\u3081\u3001\u30d1\u30b1\u30c3\u30c8\u304c\u8907\u6570\u306eNAT\u3092\u901a\u904e\u3059\u308b\u3068\u30b2\u30fc\u30e0\u4f53\u9a13\uff08FPS\uff09\u304c\u9045\u5ef6\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3053\u3068\u3067\u3059\u3002&nbsp;<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>e.IPv4\u304bIPv6\u304b\u3092\u77e5\u308b\u306b\u306f\uff1f&nbsp;<\/strong><\/h4>\n\n\n\n<p>\u73fe\u5728IPv4\u3068IPv6\u306e\u3069\u3061\u3089\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u304b\u3092\u8abf\u3079\u308b\u6700\u3082\u7c21\u5358\u306a\u65b9\u6cd5\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u7c21\u5358\u306a\u30aa\u30f3\u30e9\u30a4\u30f3\u30c6\u30b9\u30c8\u3092\u884c\u3046\u3053\u3068\u3067\u3059\u3002&nbsp;<a target=\"_blank\" href=\"https:\/\/test-ipv6.com\/\" rel=\"noreferrer noopener\">\u30c6\u30b9\u30c8\u30fb\u30de\u30a4\u30fbIPv6<\/a>&nbsp;\u3084\u3001&nbsp;<a target=\"_blank\" href=\"https:\/\/ipv6-test.com\/\" rel=\"noreferrer noopener\">ipv6-test.com<\/a>.Windows\u3067\u306f \"\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\"\u3001macOS\u3084Linux\u3067\u306f \"\u30bf\u30fc\u30df\u30ca\u30eb \"\u3092\u958b\u304d\u3001\"ipconfig \"\u307e\u305f\u306f \"ifconfig \"\u3068\u5165\u529b\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306eIP\u30a2\u30c9\u30ec\u30b9\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002&nbsp;<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>f.IPv6\u306f\u3044\u305a\u308c\u306a\u304f\u306a\u308b\u306e\u304b\uff1f&nbsp;<\/strong><\/h4>\n\n\n\n<p>\u305d\u306e\u6570\u306f\u7121\u9650\u3067\u306f\u306a\u3044\u304c\u3001IPv6\u306f\u307b\u307c\u7121\u9650\u306e\u30d7\u30fc\u30eb\u3092\u6301\u3064\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u308b\u3002340\u5146\u30011\u5146\u30011\u5146\u306eIPv6\u30a2\u30c9\u30ec\u30b9\u304c\u3042\u308a\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u63a5\u7d9a\u3059\u308b\u4f55\u5146\u5146\u3082\u306e\u30c7\u30d0\u30a4\u30b9\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u306b\u306f\u5341\u5206\u3059\u304e\u308b\u307b\u3069\u3060\u3002IPv6\u306f\u4e8b\u5b9f\u4e0a\u3001\u3059\u3050\u306b\u67af\u6e07\u3059\u308b\u3053\u3068\u306f\u306a\u3044\u3060\u308d\u3046\u3002&nbsp;<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>g.IPv4\u306f\u3044\u3064\u5ec3\u6b62\u3055\u308c\u308b\u306e\u304b\uff1f&nbsp;<\/strong><\/h4>\n\n\n\n<p>IPv4\u304c\u67af\u6e07\u3057\u3064\u3064\u3042\u308b\u306e\u306f\u4e8b\u5b9f\u3067\u3042\u308a\u3001\u305d\u308c\u3053\u305d\u304cIPv6\u304c\u5fc5\u8981\u3068\u3055\u308c\u308b\u7406\u7531\u3067\u3042\u308b\u3002IPv4\u30a2\u30c9\u30ec\u30b9\u306e\u67af\u6e07\u554f\u984c\u3092\u89e3\u6c7a\u3057\u3001\u307e\u305f\u6280\u8853\u9769\u65b0\u3068\u30b5\u30fc\u30d3\u30b9\u306e\u305f\u3081\u306e\u591a\u304f\u306e\u6249\u3092\u958b\u304f\u3002IPv6\u304c\u767b\u5834\u3057\u3066\u7d0410\u5e74\u3001IPv6\u3078\u306e\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u306f\u9045\u3005\u3068\u3057\u3066\u9032\u3093\u3067\u3044\u306a\u3044\u304c\u3001IPv6\u306f\u307e\u3060\u5e83\u304f\u666e\u53ca\u3057\u3066\u3044\u306a\u3044\u3002\u3057\u304b\u3057\u3001\u305d\u308c\u3067\u3082IPv6\u306e\u666e\u53ca\u7387\u306f\u7740\u5b9f\u306b\u4e0a\u6607\u3057\u3066\u3044\u308b\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>h. \u30b2\u30fc\u30e0\u306b\u304a\u3051\u308bipv6\u3068ipv4\u3002\u3069\u3061\u3089\u304c\u826f\u3044\u3067\u3059\u304b\uff1f&nbsp;<\/strong><\/h4>\n\n\n\n<p>\u3059\u3079\u3066\u306e\u65b0\u3057\u3044\u30d3\u30c7\u30aa\u30b2\u30fc\u30e0\u6a5f\u304cIPv6\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u3068\u3044\u3046\u4e8b\u5b9f\u304c\u3001\u79fb\u884c\u306e\u5fc5\u8981\u6027\u3092\u660e\u3089\u304b\u306b\u3057\u3066\u3044\u308b\u3002\u30d3\u30c7\u30aa\u30b2\u30fc\u30e0\u4f1a\u793e\u306fIPv6\u3068IPv4\u30b2\u30fc\u30e0\u306e\u9055\u3044\u3092\u77e5\u3063\u3066\u3044\u308b\u3002IPv4\u306f\u78ba\u7acb\u3055\u308c\u305f\u6210\u719f\u3057\u305f\u6280\u8853\u3067\u3042\u308b\u304c\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3001\u30b9\u30d4\u30fc\u30c9\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306fIPv6\u306e\u65b9\u304c\u306f\u308b\u304b\u306b\u512a\u308c\u3066\u3044\u308b\u3002\u307e\u305a\u3001IPv6\u306f\u30dd\u30fc\u30c8\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0\u3001UPnP\u3001NAT-PMP\u3092\u5fc5\u8981\u3068\u3057\u306a\u3044\u305f\u3081\u3001\u30b9\u30d4\u30fc\u30c9\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5927\u304d\u306a\u9055\u3044\u304c\u3042\u308a\u307e\u3059\u3002\u3055\u3089\u306b\u3001IPv6\u5bfe\u5fdc\u30c7\u30d0\u30a4\u30b9\u306f\u30a2\u30c9\u30ec\u30b9\u3092\u81ea\u52d5\u8a2d\u5b9a\u3059\u308b\u305f\u3081\u3001\u30b2\u30fc\u30e0\u4f53\u9a13\u3082\u975e\u5e38\u306b\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>i.IPv6\u306fIPv4\u306e\u3088\u3046\u306b\u30af\u30e9\u30b9\u5206\u3051\u3055\u308c\u3066\u3044\u308b\u306e\u304b\uff1f <\/strong><\/h4>\n\n\n\n<p>IPv6\u306fIPv4\u306e\u3088\u3046\u306b\u30af\u30e9\u30b9\u5206\u3051\u3055\u308c\u3066\u3044\u306a\u3044\u3002IPv4\u3067\u306f\u3001IP\u30a2\u30c9\u30ec\u30b9\u306f\u30af\u30e9\u30b9A\u3001B\u3001C\u3001D\u3001E\u306b\u5206\u3051\u3089\u308c\u308b\u3002\u30af\u30e9\u30b9\u306f\u3001\u30a2\u30c9\u30ec\u30b9\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u90e8\u5206\u3068\u30db\u30b9\u30c8\u90e8\u5206\u3092\u8868\u3059\u306e\u306b\u4f7f\u308f\u308c\u308b\u30d3\u30c3\u30c8\u6570\u306b\u57fa\u3065\u3044\u3066\u3044\u308b\u3002\u3053\u306e\u5206\u985e\u30b7\u30b9\u30c6\u30e0\u306b\u3088\u308a\u3001IP\u30a2\u30c9\u30ec\u30b9\u3092\u968e\u5c64\u7684\u306b\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u305d\u306e\u305f\u3081\u3001IPv6\u3067\u306f\u30af\u30e9\u30b9\u3067\u6574\u7406\u3059\u308b\u4ee3\u308f\u308a\u306b\u3001\u30a2\u30c9\u30ec\u30b9\u304c\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u3068\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9ID\u306e2\u3064\u306e\u90e8\u5206\u306b\u5206\u5272\u3055\u308c\u308b\u3001\u3088\u308a\u30b7\u30f3\u30d7\u30eb\u306a\u30a2\u30c9\u30ec\u30b9\u4f53\u7cfb\u304c\u63a1\u7528\u3055\u308c\u3066\u3044\u308b\u3002 <\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>j.IPv4\u306e\u751f\u5b58\u671f\u9593\u3068IPv6\u306e\u751f\u5b58\u671f\u9593\uff1f<\/strong><\/h4>\n\n\n\n<p>IPv4\u3068IPv6\u3067\u306f\u3001TTL\uff08Time to Live\uff09\u30d5\u30a3\u30fc\u30eb\u30c9\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30d1\u30b1\u30c3\u30c8\u306e\u5bff\u547d\u3092\u5236\u9650\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u3002\u3069\u3061\u3089\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3082\u540c\u3058\u76ee\u7684\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u304c\u3001\u3044\u304f\u3064\u304b\u306e\u5f37\u3044\u9055\u3044\u304c\u3042\u308a\u307e\u3059\u3002IPv4\u3067\u306f\u3001TTL\u30d5\u30a3\u30fc\u30eb\u30c9\u306f1\u30d0\u30a4\u30c8\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u3067\u3042\u308a\u3001\u6700\u5927TTL\u5024\u306f255\u3067\u3042\u308b\u3002\u4e00\u65b9\u3001IPv6\u306eTTL\u30d5\u30a3\u30fc\u30eb\u30c9\u306f2\u30d0\u30a4\u30c8\u30d5\u30a3\u30fc\u30eb\u30c9\u3067\u3001\u6700\u5927\u5024\u306f65,535\u3068\u306f\u308b\u304b\u306b\u5927\u304d\u3044\u3002IPv6\u3067\u306f\u3001\u30d1\u30b1\u30c3\u30c8\u304c\u5ec3\u68c4\u3055\u308c\u308b\u524d\u306b\u3001\u3088\u308a\u591a\u304f\u306e\u30db\u30c3\u30d7\u3092\u53d6\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001\u3053\u308c\u306f\u975e\u5e38\u306b\u5927\u898f\u6a21\u307e\u305f\u306f\u8907\u96d1\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading has-text-align-center has-background\" style=\"background-color:#d8eaf8\"><strong>IPv6\u306b\u3088\u308b\u672a\u6765\u306e\u30a6\u30a7\u30d6\u3092\u4f53\u9a13\u3059\u308b\u6e96\u5099\u306f\u3067\u304d\u3066\u3044\u307e\u3059\u304b\uff1f<br><\/strong><br><em>\u671f\u9593\u9650\u5b9a\u306e20%\u30ec\u30f3\u30bf\u30eb\u5272\u5f15\u3092\u5229\u7528\u3057\u3066\u3001IPv6\u306e\u30e1\u30ea\u30c3\u30c8\u3092\u4eab\u53d7\u3057\u3066\u304f\u3060\u3055\u3044\u3002IPv6\u306b\u30a2\u30c3\u30d7\u30b0\u30ec\u30fc\u30c9\u3057\u3066\u3001\u30c7\u30b8\u30bf\u30eb\u306e\u4e16\u754c\u3092\u30ea\u30fc\u30c9\u3057\u307e\u3057\u3087\u3046\u3002 <strong>\u4f55\u304c\u5f97\u3089\u308c\u308b\u306e\u304b\uff1f&nbsp;<\/strong><br><\/em><br>\u5e74\u4e2d\u7121\u4f11\u306e\u30ab\u30b9\u30bf\u30de\u30fc\u30b5\u30dd\u30fc\u30c8\u3002<br>IP\u30a2\u30c9\u30ec\u30b9\u306f\u3059\u3079\u3066\u5f0a\u793e\u304c\u6240\u6709\u3057\u3001\u7b2c\u4e09\u8005\u304c\u4f7f\u7528\u3059\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002<br>LOA\u306e\u67d4\u8edf\u306a\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u30aa\u30d7\u30b7\u30e7\u30f3\u3002<br>\u900f\u660e\u306a\u4fa1\u683c\u8a2d\u5b9a&nbsp;<br>48\u6642\u9593\u8fd4\u91d1\u4fdd\u8a3c\u3002<br><br>Visit our website for IPv6 rental and experience faster, secure internet.&nbsp;<br><br>\ud83d\ude80 <a href=\"https:\/\/www.rapidseedbox.com\/ja\/ipv4-rental\/?promocode=IPV620OFF&amp;billingcycle=monthly#pricing\" target=\"_blank\" rel=\"noreferrer noopener\">\u30ad\u30e3\u30f3\u30da\u30fc\u30f3\u306b\u306f\u9650\u308a\u304c\u3042\u308a\u307e\u3059\u3002\u4eca\u3059\u3050IPv6\u306e\u65c5\u3092\u59cb\u3081\u3088\u3046\uff01<\/a><br><br>---<\/h4>","protected":false},"excerpt":{"rendered":"<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u4e21\u65b9\u306eIP\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002\u4e21\u8005\u306e\u9055\u3044\u3092\u3001\u6df1\u3044\u6280\u8853\u7684\u306a\u8aac\u660e\u3092\u4ea4\u3048\u3066\u8aac\u660e\u3057\u307e\u3059\u3002\u305d\u3057\u3066\u300111\u306e\u91cd\u8981\u306a\u9055\u3044\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002 <\/p>","protected":false},"author":145,"featured_media":28868,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[39],"tags":[455,410,310,371,319,453,440,454],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>IPv4 vs. IPv6: Their 11 Key Differences (Updated)<\/title>\n<meta name=\"description\" content=\"IPv6 vs IPv4? IPv4 is essential for today&#039;s communications, but it is slowly depleting. IPv6 is the solution to address this problem.\" \/>\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\/ipv6-vs-ipv4\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"IPv4 vs. IPv6: Their 11 Key Differences (Updated)\" \/>\n<meta property=\"og:description\" content=\"IPv6 vs IPv4? IPv4 is essential for today&#039;s communications, but it is slowly depleting. 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