{"id":29748,"date":"2026-08-18T14:15:35","date_gmt":"2026-08-18T05:15:35","guid":{"rendered":"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/?p=29748"},"modified":"2026-08-18T14:36:44","modified_gmt":"2026-08-18T05:36:44","slug":"ipv4%e3%82%a2%e3%82%af%e3%82%bb%e3%82%b9%e5%af%be%e5%bf%9c","status":"publish","type":"post","link":"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/2026\/08\/18\/ipv4%e3%82%a2%e3%82%af%e3%82%bb%e3%82%b9%e5%af%be%e5%bf%9c\/","title":{"rendered":"IPv4\u30a2\u30af\u30bb\u30b9\u5bfe\u5fdc"},"content":{"rendered":"<p>\u4eca\u5e74\u306e6\u6708\u304b\u3089<a href=\"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/2026\/06\/03\/10g%e5%85%89%e5%9b%9e%e7%b7%9a%e5%b0%8e%e5%85%a5\/\">\u6211\u304c\u5bb6\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c100M\u5149\u304b\u308910G\u5149\u306b\u306a\u3063\u305f<\/a>\u3053\u3068\u3067\u3001IPv4\u306e\u307f\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089\u306e\u30a2\u30af\u30bb\u30b9\u304c\u3067\u304d\u306a\u304f\u306a\u308a\u307e\u3057\u305f\u3002IPv4\u3068IPv6\u306e\u5171\u5b58\u304c\u9032\u3093\u3067\u304d\u305f\u73fe\u72b6\u3001IPv4\u3060\u3051\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f\u65e5\u672c\u306e\u5834\u5408\u3001\u7d041\u5272\u7a0b\u5ea6\u3068\u3044\u3046\u3053\u3068\u3067IPv6\u3067\u306e\u81ea\u5b85\u30b5\u30fc\u30d0\u30fc\u904b\u7528\u306b\u8e0f\u307f\u5207\u308a\u307e\u3057\u305f\u304c\u3001\u601d\u3044\u306e\u307b\u304bIPv4\u3060\u3051\u3067\u904b\u7528\u3057\u3066\u3044\u308b\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u304c\u591a\u304f\u3042\u308b\u3088\u3046\u3067\u79c1\u3082\u5c11\u3057\u9a5a\u304d\u307e\u3057\u305f\u3002\u3000\u307e\u305f\u30b9\u30de\u30db\u56de\u7dda\u3067\u3082IPv6\u5bfe\u5fdc\u304c\u3067\u304d\u3066\u3044\u306a\u3044\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u304c\u3042\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n<p>\u305d\u3093\u306a\u308f\u3051\u3067\u30016\u6708\u304b\u3089\u7d042\u304b\u6708\u9593\u3001IPv6\u3060\u3051\u306e\u5bfe\u5fdc\u306b\u306a\u3063\u3066\u3044\u307e\u3057\u305f\u304c\u3001IPv4\u3060\u3051\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u304c\u591a\u3044\u3053\u3068\u3001\u305d\u3057\u3066\u3053\u306e\u79cb\u304b\u3089\u8a08\u753b\u3057\u3066\u3044\u308b\u3042\u308b\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u3069\u3046\u3057\u3066\u3082\u5168\u4e16\u754c\u3001\u30e6\u30cb\u30d0\u30fc\u30b5\u30eb\u306a\u60c5\u5831\u63d0\u4f9b\u304c\u5fc5\u8981\u3068\u306a\u308b\u305f\u3081\u3001\u91cd\u3044\u8170\u3092\u4e0a\u3052\u3066IPv4\u5bfe\u5fdc\u3092\u3059\u308b\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>\u3084\u308a\u65b9\u3068\u3057\u3066\u306f<\/p>\n<ol>\n<li>\u5bb6\u306b\u6765\u3066\u3044\u308b\u5149\u56de\u7dda\u306e\u30b9\u30d4\u30fc\u30c9\u30c0\u30a6\u30f3\u3067PPPoE\u304c\u53ef\u80fd\u306a\u3088\u3046\u306b\u8a2d\u5b9a\u3059\u308b<\/li>\n<li>Cloudflare\u306eDNS\u3092\u4f7f\u3046<\/li>\n<li>\u30ea\u30d0\u30fc\u30b9\u30d7\u30ed\u30ad\u30b7\u3092\u4f7f\u3046<\/li>\n<\/ol>\n<p>\u3053\u306e3\u3064\u304f\u3089\u3044\u3042\u308b\u306e\u3067\u3059\u304c\u30011\u306f\u7d76\u5bfe\u306b\u907f\u3051\u305f\u3044\u3001\u305b\u3063\u304b\u304f10G\u306b\u3057\u305f\u30b9\u30d4\u30fc\u30c9\u30c0\u30a6\u30f3\u306f\u8ad6\u5916\u3067\u3059\u3002\u30002\u306b\u3064\u3044\u3066\u306f\u72ec\u81ea\u30c9\u30e1\u30a4\u30f3\u540d\u304c\u5fc5\u8981\u3001\u3064\u307e\u308a\u9078\u629e\u80a2\u306f3\u306e\u307f\u3067\u3059\u3002<\/p>\n<p>\u3084\u308a\u65b9\u3068\u3057\u3066\u306f\u3001MyDNS\u306e\u8a2d\u5b9a\u3067\u3001\u4e0b\u306e\u56f3\u306e\u3088\u3046\u306bIPv6\u5bfe\u5fdc\u3067\u304d\u3066\u3044\u308b\u30e6\u30fc\u30b6\u30fc\u306f\u305d\u306e\u307e\u307e\u81ea\u5b85\u30b5\u30fc\u30d0\u30fc\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u3082\u3089\u3044\u3001IPv4\u3060\u3051\u306e\u30e6\u30fc\u30b6\u30fc\u306fVPS\u306b\u69cb\u7bc9\u3057\u305f\u30ea\u30d0\u30fc\u30b9\u30d7\u30ed\u30ad\u30b7\u306b\u63a5\u7d9a\u3057\u3001\u30ea\u30d0\u30fc\u30b9\u30d7\u30ed\u30ad\u30b7\u3068\u81ea\u5b85\u30b5\u30fc\u30d0\u30fc\u306e\u9593\u306fIPv6\u3067\u63a5\u7d9a\u3059\u308b\u3068\u3044\u3046\u3082\u306e\u3067\u3059\u3002<\/p>\n<p><a href=\"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2026\/08\/revers-proxy.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-29751\" src=\"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2026\/08\/revers-proxy.jpg\" alt=\"\" width=\"1387\" height=\"890\" srcset=\"https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2026\/08\/revers-proxy.jpg 1387w, https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2026\/08\/revers-proxy-300x193.jpg 300w, https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2026\/08\/revers-proxy-1024x657.jpg 1024w, https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2026\/08\/revers-proxy-150x96.jpg 150w, https:\/\/www.kawauchi.homeip.mydns.jp\/jh0cjh\/blog\/wp-content\/uploads\/2026\/08\/revers-proxy-768x493.jpg 768w\" sizes=\"auto, (max-width: 1387px) 100vw, 1387px\" \/><\/a><\/p>\n<p>\u30ea\u30d0\u30fc\u30b9\u30d7\u30ed\u30ad\u30b7\u3092\u4f5c\u308b\u305f\u3081\u306b\u306f\u5916\u90e8\u306e\u30b5\u30fc\u30d0\u30fc\u3092\u501f\u308a\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3000\u4e2d\u7d99\u3092\u3059\u308b\u3060\u3051\u306a\u306e\u3067\u3001\u5bb9\u91cf\u7684\u306b\u306f\u6700\u5c0f\u9650\u3067OK\u3002\u3000\u79c1\u306f\u3055\u304f\u3089\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306eVPS\u3092\u501f\u308a\u3066\u69cb\u7bc9\u3059\u308b\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n<p>VPS\u306b\u306fNginx\u3092\u3044\u308c\u3066\u81ea\u5b85\u30b5\u30fc\u30d0\u30fc\u307e\u3067\u4e2d\u7d99\u3055\u305b\u307e\u3059\u3002\u3053\u306eVPS\u306b\u306f\u30b3\u30f3\u30c6\u30f3\u30c4\u306f\u4f55\u3082\u7f6e\u3044\u3066\u3044\u306a\u3044\u306e\u3067\u3001\u672c\u5f53\u306b\u6700\u5c0f\u9650\u306e\u69cb\u6210\u3067OK\u3002\u3000IPv4\u3068IPv6\u306e\u6a4b\u6e21\u3057\u3092\u3059\u308b\u3060\u3051\u3067\u3059\u3002<\/p>\n<p>\u3057\u304b\u3057\u3001\u3053\u306e\u30ea\u30d0\u30fc\u30b9\u30d7\u30ed\u30ad\u30b7\u306b\u3082Web\u30b5\u30a4\u30c8\u306e\u8a3c\u660e\u66f8\u3092\u5165\u308c\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3000\u79c1\u306f\u81ea\u5b85\u30b5\u30fc\u30d0\u30fc\u5074\u3067\u306fLet\u2019s Encrypt\u306e\u30b5\u30a4\u30c8\u8a3c\u660e\u3092\u4f7f\u3063\u3066\u3044\u307e\u3059\u304c\u3001VPS\u306b\u304a\u304f\u8a3c\u660e\u66f8\u3082\u540c\u3058\u3082\u306e\u3067OK\u3002\u3000\u3053\u306eLet\u2019s Encrypt\u306e\u8a3c\u660e\u66f8\u306f\u30013\u304b\u6708\u306b\u4e00\u5ea6\u8a3c\u660e\u66f8\u306e\u66f4\u65b0\u304c\u5fc5\u8981\u3067\u3059\u3002\u3000\u79c1\u306f\u3053\u308c\u3092\u81ea\u52d5\u66f4\u65b0\u3055\u305b\u3066\u304a\u308a\u3001\u3053\u306e\u8a3c\u660e\u66f8\u304c\u66f4\u65b0\u3055\u308c\u305f\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u3001\u66f4\u65b0\u3055\u308c\u3066\u3044\u305f\u5834\u5408\u306f\u81ea\u5b85\u30b5\u30fc\u30d0\u30fc\u304b\u3089\u30ea\u30d0\u30fc\u30b9\u30d7\u30ed\u30ad\u30b7\u306b\u8a3c\u660e\u66f8\u3092\u8ee2\u9001\u3059\u308b\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u4f5c\u3063\u3066\u5168\u90e8\u81ea\u52d5\u5316\u3057\u3066\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u4eca\u5f8cIPv4\u3060\u3051\u3057\u304b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u306f\u6e1b\u308b\u65b9\u5411\u3068\u601d\u3044\u307e\u3059\u304c\u3001\u898f\u683c\u304c\u4f5c\u3089\u308c\u3066\u304b\u308930\u5e74\u4ee5\u4e0a\u305f\u3063\u305f\u65e5\u672c\u3067\u3082\u666e\u53ca\u306f\u307e\u3060\u307e\u3060\u3001\u4e16\u754c\u30ec\u30d9\u30eb\u3067\u306f\u304a\u305d\u3089\u304f\u6570\u5341\u5e74\u898f\u6a21\u3067\u6642\u9593\u304c\u5fc5\u8981\u3068\u601d\u308f\u308c\u308b\u306e\u3067\u3001\u3057\u3070\u3089\u304f\u306f\u3053\u308c\u3067\u904b\u7528\u3057\u3088\u3046\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>\u81ea\u5b85\u30b5\u30fc\u30d0\u30fc\u5185\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u5168\u90e8VPS\u306b\u79fb\u3059\u3053\u3068\u3082\u4e00\u6848\u3067\u3059\u304c\u3001\u8cbb\u7528\u304c\u304a\u305d\u3089\u304f\u81a8\u5927\u306b\u306a\u308b\u3053\u3068\u3068\u3001\u81ea\u7531\u5ea6\u306e\u70b9\u3067\u3084\u306f\u308a\u3053\u306e\u69cb\u6210\u304c\u81ea\u5206\u306b\u3068\u3063\u3066\u306f\u30d9\u30b9\u30c8\u304b\u306a\u3068\u601d\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u5149\u30cd\u30c3\u30c8\u306e\u30b9\u30d4\u30fc\u30c9\u30a2\u30c3\u30d7\u3067PPPoE\u304c\u4f7f\u3048\u305a\u56f0\u3063\u3066\u3044\u308b\u65b9\u306e\u53c2\u8003\u306b\u306a\u308c\u3070\u5e78\u3044\u3067\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>IPv6\u306e\u307f\u3067\u306e\u904b\u7528\u3068\u306a\u3063\u305f\u81ea\u5b85\u30b5\u30fc\u30d0\u30fc\u306b\u3001VPS\u4e0a\u306eNginx\u30ea\u30d0\u30fc\u30b9\u30d7\u30ed\u30ad\u30b7\u3092\u4f7f\u3063\u3066IPv4\u30a2\u30af\u30bb\u30b9\u3092\u53ef\u80fd\u306b\u3057\u305f\u8a18\u9332\u3067\u3059\u3002Web\u8a3c\u660e\u66f8\u8ee2\u9001\u306e\u81ea\u52d5\u5316\u306b\u3082\u89e6\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n","protected":false},"author":2,"featured_media":29753,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[24],"tags":[1629,332,776,226,1632,1634,1631,1633,1630,193],"class_list":["post-29748","post","type-post","status-publish","format-standard","has-post-thumbnail","category-24","tag-ipv4","tag-ipv6","tag-lets-encrypt","tag-mydns","tag-nginx","tag-pppoe","tag-vps","tag-1633","tag-1630","tag-193"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- 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