{"id":15751,"date":"2025-12-02T15:05:18","date_gmt":"2025-12-02T14:05:18","guid":{"rendered":"https:\/\/webhosting.de\/bgp-routing-hosting-internet-infrastruktur-optimierung\/"},"modified":"2025-12-02T15:05:18","modified_gmt":"2025-12-02T14:05:18","slug":"bgp%e3%83%ab%e3%83%bc%e3%83%86%e3%82%a3%e3%83%b3%e3%82%b0%e3%80%81%e3%83%9b%e3%82%b9%e3%83%86%e3%82%a3%e3%83%b3%e3%82%b0%e3%80%81%e3%82%a4%e3%83%b3%e3%82%bf%e3%83%bc%e3%83%8d%e3%83%83%e3%83%88","status":"publish","type":"post","link":"https:\/\/webhosting.de\/ja\/bgp-routing-hosting-internet-infrastruktur-optimierung\/","title":{"rendered":"\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u304a\u3051\u308bBGP\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\uff1a\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u4e8b\u696d\u8005\u304c\u3042\u306a\u305f\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u4e0e\u3048\u308b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3078\u306e\u5f71\u97ff"},"content":{"rendered":"<p><strong>BGP\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30db\u30b9\u30c6\u30a3\u30f3\u30b0<\/strong> \u3042\u306a\u305f\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3078\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u7d4c\u8def\u3068\u3001\u4e16\u754c\u4e2d\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u56de\u7b54\u3092\u5f97\u308b\u307e\u3067\u306e\u901f\u5ea6\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u4e8b\u696d\u8005\u304c BGP \u3092\u4f7f\u7528\u3057\u3066\u7d4c\u8def\u3092\u5236\u5fa1\u3057\u3001\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc\u3092\u4f4e\u6e1b\u3057\u3001\u653b\u6483\u3092\u9632\u5fa1\u3059\u308b\u5177\u4f53\u7684\u306a\u65b9\u6cd5\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u8aad\u307f\u8fbc\u307f\u6642\u9593\u3001\u53ef\u7528\u6027\u3001\u30b3\u30b9\u30c8\u306b\u76f4\u63a5\u5f71\u97ff\u3057\u307e\u3059\u3002.<\/p>\n\n<h2>\u4e2d\u5fc3\u70b9<\/h2>\n\n<p>\u6700\u3082\u91cd\u8981\u306a\u3053\u3068\u3092\u307e\u3068\u3081\u308b\u3002 <strong>\u30ec\u30d0\u30fc<\/strong> BGP \u306b\u3088\u308b\u9ad8\u6027\u80fd\u306a\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u3064\u3044\u3066\u3002\u305d\u306e\u969b\u3001\u79c1\u304c\u7a4d\u6975\u7684\u306b\u5f71\u97ff\u529b\u3092\u884c\u4f7f\u3067\u304d\u308b\u8abf\u6574\u8981\u7d20\u3001\u3064\u307e\u308a\u7d4c\u8def\u9078\u629e\u3001\u5197\u9577\u6027\u3001\u30d4\u30a2\u30ea\u30f3\u30b0\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306b\u7126\u70b9\u3092\u5f53\u3066\u307e\u3059\u3002\u30eb\u30fc\u30c8\u30a2\u30ca\u30a6\u30f3\u30b9\u306e\u4ed5\u7d44\u307f\u3084\u3001\u305d\u306e\u6c7a\u5b9a\u3092\u5de6\u53f3\u3059\u308b\u5c5e\u6027\u306b\u3064\u3044\u3066\u3054\u8aac\u660e\u3057\u307e\u3059\u3002Anycast DNS\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u3001\u30d6\u30e9\u30c3\u30af\u30db\u30fc\u30eb\u306a\u3069\u3001\u5b9f\u8df5\u7684\u306a\u4f8b\u3082\u7d39\u4ecb\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u4ee5\u4e0b\u306e\u3053\u3068\u3092\u7406\u89e3\u3057\u3066\u3044\u305f\u3060\u3051\u307e\u3059\u3002 <strong>\u6c7a\u65ad<\/strong> \u3042\u306a\u305f\u306e\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306b\u771f\u306e\u5909\u5316\u3092\u3082\u305f\u3089\u3057\u307e\u3059\u3002.<\/p>\n<ul>\n  <li><strong>\u7d4c\u8def\u9078\u629e<\/strong>: BGP \u5c5e\u6027\u306f\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u3088\u308a\u826f\u3044\u7d4c\u8def\u306b\u8a98\u5c0e\u3057\u307e\u3059\u3002.<\/li>\n  <li><strong>\u5197\u9577\u6027<\/strong>\u8907\u6570\u306e\u30a2\u30c3\u30d7\u30b9\u30c8\u30ea\u30fc\u30e0\u306b\u3088\u308a\u969c\u5bb3\u3092\u524a\u6e1b\u3002.<\/li>\n  <li><strong>\u30d4\u30a2\u30ea\u30f3\u30b0<\/strong>: \u76f4\u63a5\u306e\u96a3\u4eba\u306f\u30ec\u30a4\u30c6\u30f3\u30b7\u3092\u4f4e\u6e1b\u3057\u307e\u3059\u3002.<\/li>\n  <li><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3<\/strong>\u30d6\u30e9\u30c3\u30af\u30db\u30fc\u30eb\u3068\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u306f\u653b\u6483\u3092\u963b\u6b62\u3057\u307e\u3059\u3002.<\/li>\n  <li><strong>\u30b9\u30b1\u30fc\u30ea\u30f3\u30b0<\/strong>\uff1aAnycast \u306f\u8ca0\u8377\u3092\u4e16\u754c\u4e2d\u306b\u5206\u6563\u3057\u307e\u3059\u3002.<\/li>\n<\/ul>\n\n<h2>BGP\u3068\u306f\u4f55\u3067\u3042\u308a\u3001\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u3068\u3063\u3066\u306a\u305c\u91cd\u8981\u306a\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/h2>\n\n<p>\u30dc\u30fc\u30c0\u30fc\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u81ea\u5f8b\u30b7\u30b9\u30c6\u30e0\u3092\u63a5\u7d9a\u3057\u3001 <strong>\u30d1\u30b9<\/strong> \u30d7\u30ed\u30d0\u30a4\u30c0\u306e\u5883\u754c\u3092\u8d8a\u3048\u305f\u30c7\u30fc\u30bf\u3002 \u79c1\u306f BGP \u3092\u4f7f\u7528\u3057\u3066 IP \u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u3092\u30a2\u30ca\u30a6\u30f3\u30b9\u3057\u3001\u30cd\u30a4\u30d0\u30fc\uff08\u30d4\u30a2\uff09\u3092\u6c7a\u5b9a\u3057\u3001\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u305f\u3081\u306e\u30dd\u30ea\u30b7\u30fc\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u3053\u306e\u30a2\u30ca\u30a6\u30f3\u30b9\u304c\u306a\u3051\u308c\u3070\u3001\u3042\u306a\u305f\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f\u898b\u3048\u306a\u304f\u306a\u308a\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u3042\u306a\u305f\u306e\u30b5\u30fc\u30d0\u30fc\u306b\u76f4\u63a5\u5230\u9054\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002BGP \u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30e9\u30f3\u30c0\u30e0\u306a\u7d4c\u8def\u9078\u629e\u306b\u4f9d\u5b58\u3059\u308b\u5fc5\u8981\u304c\u306a\u3044\u305f\u3081\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u4e88\u6e2c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002\u79c1\u306f\u5c5e\u6027\u3068\u30dd\u30ea\u30b7\u30fc\u3092\u4f7f\u7528\u3057\u3066\u3001 <strong>\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3<\/strong> \u3042\u306a\u305f\u306e\u30b5\u30fc\u30d3\u30b9\u3092\u4e16\u754c\u4e2d\u3067\u4e00\u8cab\u3057\u3066\u78ba\u4fdd\u3059\u308b\u3053\u3068\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2025\/12\/bgp-hosting-serverraum-8163.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u304a\u3051\u308bBGP\uff1aIP\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u3001\u30d4\u30a2\u30ea\u30f3\u30b0\u3001\u30dd\u30ea\u30b7\u30fc<\/h2>\n\n<p>\u79c1\u306f\u8f9e\u3081\u307e\u3059 <strong>\u6240\u6709\u3059\u308b<\/strong> IPv4\/24 \u304a\u3088\u3073 IPv6\/48 \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u63a5\u7d9a\u3057\u3001\u4e16\u754c\u4e2d\u304b\u3089\u78ba\u5b9f\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002\u79c1\u306f\u3001\u4fa1\u683c\u3060\u3051\u3067\u306a\u304f\u3001\u9045\u5ef6\u3001\u5bb9\u91cf\u3001\u54c1\u8cea\u3092\u8003\u616e\u3057\u3066\u30d4\u30a2\u3092\u9078\u629e\u3057\u3066\u3044\u307e\u3059\u3002 \u8aa4\u3063\u305f\u30a2\u30ca\u30a6\u30f3\u30b9\u3084\u30ea\u30fc\u30af\u3092\u9632\u3050\u305f\u3081\u3001\u30eb\u30fc\u30c8\u3092\u53b3\u5bc6\u306b\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u3066\u3044\u307e\u3059\u3002LocalPref\u3001\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u3001MED \u3092\u4f7f\u7528\u3057\u3066\u3001\u512a\u5148\u9806\u4f4d\u306e\u9ad8\u3044\u7d4c\u8def\u306b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u96c6\u4e2d\u7684\u306b\u8a98\u5c0e\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u3092\u8ce2\u304f\u63a5\u7d9a\u3057\u3001\u4ee5\u4e0b\u3092\u4fdd\u8a3c\u3057\u3066\u3044\u307e\u3059\u3002 <strong>\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb<\/strong> \u5165\u529b\u30d1\u30b9\u3068\u51fa\u529b\u30d1\u30b9\u306b\u3064\u3044\u3066\u3002.<\/p>\n\n<h2>\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306e\u9045\u5ef6\u3068\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13<\/h2>\n\n<p>\u8ffd\u52a0\u306e <strong>\u30df\u30ea\u79d2<\/strong> \u30b3\u30f3\u30d0\u30fc\u30b8\u30e7\u30f3\u3068\u30a4\u30f3\u30bf\u30e9\u30af\u30b7\u30e7\u30f3\u306b\u30b3\u30b9\u30c8\u304c\u304b\u304b\u308a\u307e\u3059\u3002\u79c1\u306f\u3001\u76f4\u63a5\u306e\u30d4\u30a2\u3092\u5229\u7528\u3057\u3001\u6700\u9069\u3067\u306f\u306a\u3044\u7d4c\u8def\u3092\u907f\u3051\u3001\u8ca0\u8377\u3092\u5730\u7406\u7684\u306b\u5206\u6563\u3059\u308b\u3053\u3068\u3067\u3001\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3066\u3044\u307e\u3059\u3002Anycast DNS \u306f\u3001\u6700\u3082\u8fd1\u3044\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u5fdc\u7b54\u3057\u3001\u540d\u524d\u89e3\u6c7a\u306e\u6642\u9593\u3092\u7bc0\u7d04\u3057\u307e\u3059\u3002\u56fd\u969b\u7684\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001\u8907\u6570\u306e\u5730\u57df\u306e\u30bf\u30fc\u30b2\u30c3\u30c8\u3092\u691c\u8a3c\u3057\u3001\u30eb\u30fc\u30c8\u3092\u7a4d\u6975\u7684\u306b\u5236\u5fa1\u3057\u3066\u3044\u307e\u3059\u3002\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u554f\u984c\u306b\u3064\u3044\u3066\u3088\u308a\u6df1\u304f\u77e5\u308a\u305f\u3044\u65b9\u306f\u3001\u660e\u78ba\u306a\u57fa\u6e96\u3092\u4ee5\u4e0b\u3067\u3054\u89a7\u3044\u305f\u3060\u3051\u307e\u3059\u3002 <a href=\"https:\/\/webhosting.de\/ja\/%e3%82%b5%e3%83%bc%e3%83%90%e3%83%bc%e3%81%ae%e5%a0%b4%e6%89%80-%e3%83%9b%e3%82%b9%e3%83%86%e3%82%a3%e3%83%b3%e3%82%b0-%e3%83%ac%e3%82%a4%e3%83%86%e3%83%b3%e3%82%b7%e3%83%bc-%e3%83%87%e3%83%bc\/\">\u30b5\u30fc\u30d0\u30fc\u306e\u5834\u6240\u3068\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc<\/a>. \u3053\u306e\u3088\u3046\u306b\u3057\u3066\u3001\u8aad\u307f\u8fbc\u307f\u6642\u9593\u3092\u77ed\u304f\u6291\u3048\u3001 <strong>\u76f4\u5e30\u7387<\/strong> \u6291\u5236\u3059\u308b\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2025\/12\/bgp_hosting_meeting_4927.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>Anycast\u3001GeoDNS\u3001\u304a\u3088\u3073\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u6226\u7565<\/h2>\n\n<p>\u30b3\u30f3\u30d0\u30a4\u30f3 <strong>\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8<\/strong> GeoDNS \u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u5230\u9054\u7bc4\u56f2\u3001\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc\u3001\u304a\u3088\u3073\u4fe1\u983c\u6027\u3092\u540c\u6642\u306b\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002Anycast \u306f\u30e6\u30fc\u30b6\u30fc\u3092\u81ea\u52d5\u7684\u306b\u6700\u5bc4\u308a\u306e\u30ce\u30fc\u30c9\u306b\u8a98\u5c0e\u3057\u3001GeoDNS \u306f\u5730\u57df\u3054\u3068\u306b\u8a73\u7d30\u306a\u5fdc\u7b54\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002\u6a5f\u5bc6\u6027\u306e\u9ad8\u3044\u30b5\u30fc\u30d3\u30b9\u306b\u3064\u3044\u3066\u306f\u3001\u904e\u8ca0\u8377\u306e\u30a8\u30c3\u30b8\u3092\u907f\u3051\u3066\u30af\u30a8\u30ea\u3092\u52d5\u7684\u306b\u518d\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3057\u307e\u3059\u3002\u30d8\u30eb\u30b9\u30c1\u30a7\u30c3\u30af\u3068\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u3092\u4f7f\u7528\u3057\u3066\u3001\u30ce\u30fc\u30c9\u3092\u4e00\u6642\u7684\u306b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304b\u3089\u9664\u5916\u3057\u307e\u3059\u3002\u5404\u624b\u6cd5\u3092\u6bd4\u8f03\u3059\u308b\u3053\u3068\u3067\u3001\u9078\u629e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002 <a href=\"https:\/\/webhosting.de\/ja\/anycast-%e5%af%be-geodns-%e3%82%b9%e3%83%9e%e3%83%bc%e3%83%88-dns-%e3%83%ab%e3%83%bc%e3%83%86%e3%82%a3%e3%83%b3%e3%82%b0%e3%81%ae%e6%af%94%e8%bc%83-2025\/\">Anycast \u5bfe GeoDNS<\/a> \u305d\u306e\u305f\u3081\u306e\u9069\u5207\u306a\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u305d\u3046\u3059\u308b\u3053\u3068\u3067\u3001 <strong>\u30cd\u30c3\u30c8<\/strong>, \u3001\u8fc5\u901f\u304b\u3064\u8010\u4e45\u6027\u306b\u512a\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n<h2>\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u306b\u304a\u3051\u308b\u4ee3\u8868\u7684\u306a\u4f7f\u7528\u4f8b<\/h2>\n\n<p>BGP \u306b\u3088\u308b\u72ec\u81ea\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f\u3001\u79c1\u306b\u6b21\u306e\u3053\u3068\u3092\u53ef\u80fd\u306b\u3057\u3066\u304f\u308c\u307e\u3059\u3002 <strong>\u64cd\u7e26\u306e\u4f59\u5730<\/strong> \u30af\u30ea\u30fc\u30f3\u306a\u30de\u30eb\u30c1\u30db\u30fc\u30df\u30f3\u30b0\u3068\u72ec\u7acb\u3057\u305f IP \u30dd\u30fc\u30c8\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u3092\u6700\u5bc4\u308a\u306e\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u306b\u8a98\u5c0e\u3057\u3001\u30b3\u30b9\u30c8\u306e\u304b\u304b\u308b\u8fc2\u56de\u3092\u56de\u907f\u3059\u308b\u3053\u3068\u3067\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u914d\u4fe1\u306e\u52b9\u7387\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002\u30d5\u30a7\u30a4\u30eb\u30aa\u30fc\u30d0\u30fc\u306f\u3001\u72b6\u6cc1\u306b\u5fdc\u3058\u3066\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u3092\u8868\u793a\u307e\u305f\u306f\u975e\u8868\u793a\u306b\u3057\u3001\u512a\u5148\u9806\u4f4d\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u89e3\u6c7a\u3057\u307e\u3059\u3002 DDoS \u9632\u5fa1\u306f\u3001\u30ea\u30e2\u30fc\u30c8\u30d6\u30e9\u30c3\u30af\u30db\u30fc\u30eb\u3001\u30b9\u30af\u30e9\u30d3\u30f3\u30b0\u30bb\u30f3\u30bf\u30fc\u3001\u304a\u3088\u3073\u7591\u308f\u3057\u3044\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u7684\u3092\u7d5e\u3063\u305f\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u306b\u3088\u3063\u3066\u5b9f\u73fe\u3055\u308c\u307e\u3059\u3002Anycast DNS \u306f\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9ad8\u901f\u5316\u3057\u3001\u653b\u6483\u306e\u5bfe\u8c61\u3068\u306a\u308b\u9818\u57df\u3092\u5236\u9650\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306f 2 \u3064\u306e\u5f37\u529b\u306a <strong>\u52b9\u679c<\/strong> \u540c\u6642\u306b\u3002.<\/p>\n\n<h2>\u30d7\u30ed\u30d5\u30a7\u30c3\u30b7\u30e7\u30ca\u30eb\u306a\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u8981\u4ef6<\/h2>\n\n<p>\u983c\u308a\u306b\u3057\u3066\u3044\u308b\u306e\u306f <strong>\u8907\u6570<\/strong> \u30a2\u30c3\u30d7\u30b9\u30c8\u30ea\u30fc\u30e0\u306f\u3001\u7d4c\u8def\u9078\u629e\u3068\u4fe1\u983c\u6027\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u3067\u3059\u3002\u30d7\u30ed\u30d0\u30a4\u30c0\u306b\u4f9d\u5b58\u3057\u306a\u3044 IP \u30d6\u30ed\u30c3\u30af\u306b\u3088\u308a\u3001\u62e0\u70b9\u9593\u3084\u30d1\u30fc\u30c8\u30ca\u30fc\u9593\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u81ea\u7531\u306b\u79fb\u52d5\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 \u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3092\u6700\u65b0\u306e\u72b6\u614b\u306b\u4fdd\u3061\u3001\u30eb\u30fc\u30c8\u66f4\u65b0\u3084\u30d5\u30e9\u30c3\u30d7\u30c0\u30f3\u30d4\u30f3\u30b0\u306a\u3069\u306e\u6a5f\u80fd\u306b\u6ce8\u610f\u3092\u6255\u3063\u3066\u3044\u307e\u3059\u3002\u6bce\u65e5\u306e\u66f4\u65b0\u3092\u78ba\u8a8d\u3057\u3001BGP \u30ea\u30fc\u30af\u3084\u30cf\u30a4\u30b8\u30e3\u30c3\u30af\u306b\u5bfe\u3059\u308b\u30d5\u30a3\u30eb\u30bf\u30fc\u3068\u30a2\u30e9\u30fc\u30c8\u3092\u78ba\u5b9f\u306b\u5b9f\u884c\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u6c17\u4ed8\u304f\u524d\u306b\u969c\u5bb3\u3092\u9632\u6b62\u3057\u3001 <strong>\u30ea\u30fc\u30c1<\/strong> \u3042\u306a\u305f\u306e\u30b5\u30fc\u30d3\u30b9\u306f\u5b89\u5b9a\u3057\u3066\u9ad8\u3044\u6c34\u6e96\u3092\u7dad\u6301\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n<h2>BGP\u5c5e\u6027\uff1a\u5b9f\u969b\u306b\u91cd\u8981\u306a\u3053\u3068<\/h2>\n\n<p>\u7d4c\u8def\u9078\u629e\u306e\u6c7a\u5b9a\u8981\u56e0\u306f\u3001\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002 <strong>\u5c5e\u6027<\/strong>, \u79c1\u304c\u660e\u78ba\u306b\u512a\u5148\u3059\u308b\u3082\u306e\u3067\u3059\u3002AS-PATH\u306e\u9577\u3055\u3001\u30aa\u30ea\u30b8\u30f3\u3001MED\u3092\u8003\u616e\u3059\u308b\u524d\u306b\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u3067Weight\u3068LocalPref\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002 eBGP \u306f iBGP \u3088\u308a\u512a\u5148\u3055\u308c\u3001\u30cd\u30af\u30b9\u30c8\u30db\u30c3\u30d7\u306e\u5230\u9054\u53ef\u80fd\u6027\u304c\u9069\u5207\u3067\u306a\u3051\u308c\u3070\u3001\u30eb\u30fc\u30c8\u3092\u62d2\u5426\u3057\u307e\u3059\u3002\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306f\u3001\u30d6\u30e9\u30c3\u30af\u30db\u30fc\u30eb\u3084\u30ed\u30fc\u30ab\u30eb\u30d7\u30ea\u30d5\u30a1\u30ec\u30f3\u30b9\u306e\u30af\u30ec\u30fc\u30e0\u306a\u3069\u3001\u30a2\u30c3\u30d7\u30b9\u30c8\u30ea\u30fc\u30e0\u30dd\u30ea\u30b7\u30fc\u306e\u30b9\u30a4\u30c3\u30c1\u3068\u3057\u3066\u6a5f\u80fd\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u5909\u6570\u306b\u3088\u308a\u3001\u5165\u51fa\u529b\u306e\u5fae\u5999\u306a\u5236\u5fa1\u304c\u53ef\u80fd\u306b\u306a\u308a\u3001\u4ee5\u4e0b\u306e\u3053\u3068\u304c\u4fdd\u8a3c\u3055\u308c\u307e\u3059\u3002 <strong>\u4e00\u8cab\u6027<\/strong> \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u30d5\u30ed\u30fc\u306e\u4e2d\u3067\u3002.<\/p>\n\n<table>\n  <thead>\n    <tr>\n      <th>\u5c5e\u6027<\/th>\n      <th>\u52b9\u679c<\/th>\n      <th>\u30db\u30b9\u30c6\u30a3\u30f3\u30b0\u52b9\u679c<\/th>\n    <\/tr>\n  <\/thead>\n  <tbody>\n    <tr>\n      <td>Weight \/ LocalPref<\/td>\n      <td>\u5185\u90e8\u30d1\u30b9\u306e\u512a\u5148<\/td>\n      <td>\u3088\u308a\u901f\u304f <strong>\u30eb\u30fc\u30c8<\/strong> \u826f\u597d\u306a\u4e0a\u6d41\u3078<\/td>\n    <\/tr>\n    <tr>\n      <td>AS-PATH<\/td>\n      <td>\u3088\u308a\u77ed\u3044\u30d1\u30b9\u3092\u512a\u5148<\/td>\n      <td>\u30db\u30c3\u30d7\u306e\u91cf\u3092\u6e1b\u3089\u3057\u3001\u3088\u308a\u5c11\u306a\u3044 <strong>\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc<\/strong><\/td>\n    <\/tr>\n    <tr>\n      <td>\u8d77\u6e90<\/td>\n      <td>IGP\u3001EGP\u3001\u4e0d\u5b8c\u5168<\/td>\n      <td>\u8907\u6570\u306e\u544a\u77e5\u306b\u304a\u3051\u308b\u4e00\u8cab\u6027\u306e\u5f37\u5316<\/td>\n    <\/tr>\n    <tr>\n      <td>MED<\/td>\n      <td>\u96a3\u4eba\u540c\u58eb\u306e\u5fae\u8abf\u6574<\/td>\n      <td>\u5de6\u5074\u3078\u306e\u8ca0\u8377\u306e\u96c6\u4e2d\u5206\u6563<\/td>\n    <\/tr>\n    <tr>\n      <td>\u30b3\u30df\u30e5\u30cb\u30c6\u30a3<\/td>\n      <td>\u4e0a\u6d41\u3078\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3092\u901a\u77e5<\/td>\n      <td>\u30d6\u30e9\u30c3\u30af\u30db\u30fc\u30eb\u3001\u30ed\u30fc\u30ab\u30e9\u30a4\u30bc\u30fc\u30b7\u30e7\u30f3\u3001\u30ce\u30fc\u30a8\u30af\u30b9\u30dd\u30fc\u30c8<\/td>\n    <\/tr>\n  <\/tbody>\n<\/table>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2025\/12\/bgp_hosting_nacht_techoffice_1983.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u3001\u30c6\u30ec\u30e1\u30c8\u30ea\u3001\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u5bfe\u5fdc<\/h2>\n\n<p>\u30ec\u30a4\u30c6\u30f3\u30b7\u3001\u30ed\u30b9\u3001\u30b8\u30c3\u30bf\u30fc\u3092\u6e2c\u5b9a\u3057\u307e\u3059\u3002 <strong>\u30a2\u30af\u30c6\u30a3\u30d6<\/strong> \u591a\u304f\u306e\u5730\u57df\u304b\u3089\u306e\u30b5\u30f3\u30d7\u30eb\u3002BGP \u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3001\u30d5\u30e9\u30c3\u30d7\u3001\u30d8\u30eb\u30b9\u30c1\u30a7\u30c3\u30af\u3092\u76f8\u4e92\u306b\u95a2\u9023\u4ed8\u3051\u3066\u3001\u7570\u5e38\u3092\u65e9\u671f\u306b\u767a\u898b\u3057\u307e\u3059\u3002\u30eb\u30fc\u30c8\u5206\u6790\u3068\u30eb\u30c3\u30ad\u30f3\u30b0\u30b0\u30e9\u30b9\u306b\u3088\u308a\u3001\u30a2\u30c3\u30d7\u30b9\u30c8\u30ea\u30fc\u30e0\u306e\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u304c\u3069\u306e\u3088\u3046\u306b\u898b\u3048\u308b\u304b\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u30d6\u30e9\u30c3\u30af\u30db\u30fc\u30eb\u3001\u518d\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3001\u7dca\u6025\u901a\u77e5\u3092\u6570\u5206\u3067\u53ef\u80fd\u306b\u3059\u308b\u30e9\u30f3\u30d6\u30c3\u30af\u3092\u4fdd\u5b58\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u554f\u984c\u3092\u8fc5\u901f\u306b\u89e3\u6c7a\u3057\u3001SLA \u3092\u9075\u5b88\u3057\u3001\u53ce\u76ca\u3092\u4fdd\u8b77\u3057\u3066\u3044\u307e\u3059\u3002 <strong>\u6291\u5236\u3059\u308b<\/strong>.<\/p>\n\n<h2>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\uff1aDDoS \u4fdd\u8b77\u3068\u30d6\u30e9\u30c3\u30af\u30db\u30fc\u30eb<\/h2>\n\n<p>\u4f53\u7a4d\u653b\u6483\u3092\u30d6\u30ed\u30c3\u30af\u3057\u307e\u3059 <strong>\u30ea\u30e2\u30fc\u30c8<\/strong>- \/32 \u307e\u305f\u306f \/128 \u30bf\u30fc\u30b2\u30c3\u30c8\u3067\u306e\u30d6\u30e9\u30c3\u30af\u30db\u30fc\u30eb\u5316\u3002 \u3088\u308a\u8907\u96d1\u306a\u30d1\u30bf\u30fc\u30f3\u3067\u306f\u3001\u30d2\u30e5\u30fc\u30ea\u30b9\u30c6\u30a3\u30c3\u30af\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3092\u5099\u3048\u305f\u30b9\u30af\u30e9\u30d6\u30bb\u30f3\u30bf\u30fc\u3092\u4ecb\u3057\u3066\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u8ee2\u9001\u3057\u307e\u3059\u3002\u30cf\u30a4\u30b8\u30e3\u30c3\u30af\u3092\u9632\u6b62\u3059\u308b\u305f\u3081\u3001\u53b3\u683c\u306a\u30a4\u30f3\u30b0\u30ec\u30c3\u30b7\u30e5\/\u30a8\u30b0\u30ec\u30c3\u30b7\u30e5\u30d5\u30a3\u30eb\u30bf\u3092\u8a2d\u5b9a\u3057\u3001RPKI \u3092\u4f7f\u7528\u3057\u3066\u30eb\u30fc\u30c8\u3092\u691c\u8a3c\u3057\u3066\u3044\u307e\u3059\u3002\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306f\u3001\u653b\u6483\u5bfe\u8c61\u3092\u3069\u306e\u3088\u3046\u306b\u6271\u3046\u3079\u304d\u304b\u3092\u30a2\u30c3\u30d7\u30b9\u30c8\u30ea\u30fc\u30e0\u306b\u901a\u77e5\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u6b63\u5f53\u306a\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f\u5f71\u97ff\u3092\u53d7\u3051\u305a\u306b\u3001\u60aa\u610f\u306e\u3042\u308b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u906e\u65ad\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 <strong>\u4e2d\u548c\u3059\u308b<\/strong>.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2025\/12\/bgp-hosting-schreibtisch-7812.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30de\u30eb\u30c1CDN\u3001\u30d4\u30a2\u30ea\u30f3\u30b0\u3001\u30b3\u30b9\u30c8\u7ba1\u7406<\/h2>\n\n<p>BGP\u30dd\u30ea\u30b7\u30fc\u3092\u4ee5\u4e0b\u3068\u95a2\u9023\u4ed8\u3051\u307e\u3059\u3002 <strong>\u30de\u30eb\u30c1<\/strong>-CDN\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306b\u3088\u308a\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u306b\u6700\u9069\u306a\u7d4c\u8def\u3068\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u5730\u57df\u3054\u3068\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u8a55\u4fa1\u3057\u3001LocalPref\u3092\u8a2d\u5b9a\u3057\u3066\u3001\u5b89\u4fa1\u3067\u9ad8\u901f\u306a\u7d4c\u8def\u3092\u512a\u5148\u3057\u307e\u3059\u3002\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30ce\u30fc\u30c9\u3067\u76f4\u63a5\u30d4\u30a2\u3092\u5229\u7528\u3057\u3001\u30c8\u30e9\u30f3\u30b8\u30c3\u30c8\u30b3\u30b9\u30c8\u306e\u524a\u6e1b\u3068\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc\u306e\u4f4e\u6e1b\u3092\u56f3\u308a\u307e\u3059\u3002 \u500b\u3005\u306e\u30eb\u30fc\u30c8\u304c\u5f31\u4f53\u5316\u3057\u305f\u5834\u5408\u306f\u3001\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u3092\u5730\u7406\u7684\u306b\u7d30\u304b\u304f\u8abf\u6574\u3057\u307e\u3059\u3002\u6226\u7565\u7684\u306a\u8a08\u753b\u3092\u7acb\u3066\u305f\u3044\u65b9\u306f\u3001\u4ee5\u4e0b\u306e\u60c5\u5831\u304b\u3089\u30d2\u30f3\u30c8\u3092\u5f97\u3066\u304f\u3060\u3055\u3044\u3002 <a href=\"https:\/\/webhosting.de\/ja\/%e3%83%9e%e3%83%ab%e3%83%81-cdn-%e6%88%a6%e7%95%a5%e3%83%9b%e3%82%b9%e3%83%86%e3%82%a3%e3%83%b3%e3%82%b0%e5%8f%af%e7%94%a8%e6%80%a7%e3%83%87%e3%83%bc%e3%82%bf%e3%83%8d%e3%83%83%e3%83%88%e3%83%af\/\">\u30de\u30eb\u30c1CDN\u6226\u7565<\/a>. \u305d\u3046\u3057\u3066\u79c1\u306f\u6700\u9069\u5316\u3057\u307e\u3059 <strong>\u30b3\u30b9\u30c8<\/strong> \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u640d\u306a\u3046\u3053\u3068\u306a\u304f\u3002.<\/p>\n\n<h2>\u30a4\u30f3\u30d0\u30a6\u30f3\u30c9\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u5236\u5fa1\u3057\u3001\u975e\u5bfe\u79f0\u6027\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b<\/h2>\n\n<p>\u767a\u4fe1\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f\u5236\u5fa1\u3057\u3084\u3059\u3044\u3067\u3059\u304c\u3001\u53d7\u4fe1\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f\u305d\u3046\u3067\u306f\u306a\u3044\u5834\u5408\u304c\u591a\u304f\u3042\u308a\u307e\u3059\u3002\u79c1\u306f AS-PATH-Prepending \u3092\u4f7f\u7528\u3057\u3066\u3001\u3042\u307e\u308a\u9b45\u529b\u7684\u3067\u306f\u306a\u3044\u30d1\u30b9\u3092\u300c\u5ef6\u9577\u300d\u3057\u3001 <strong>\u5fa9\u8def<\/strong> \u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u30fb\u30d7\u30ed\u30fb\u30a2\u30c3\u30d7\u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u5730\u57df\uff08\u4f8b\u3048\u3070\u3001\u30e8\u30fc\u30ed\u30c3\u30d1\u5bfe\u5317\u7c73\uff09\u306b\u9078\u629e\u7684\u306b\u30a2\u30ca\u30a6\u30f3\u30b9\u3092\u914d\u4fe1\u3057\u305f\u308a\u3001\u30ce\u30fc\u30a8\u30af\u30b9\u30dd\u30fc\u30c8\/\u30ce\u30fc\u30a2\u30c9\u30d0\u30bf\u30a4\u30ba\u3092\u8a2d\u5b9a\u3057\u305f\u308a\u3001\u30d1\u30fc\u30c8\u30ca\u30fc\u306e LocalPref \u3092\u524a\u6e1b\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002MED \u306f\u3001\u540c\u3058\u30cd\u30a4\u30d0\u30fc\u3078\u306e\u8907\u6570\u306e\u63a5\u7d9a\u306b\u5f79\u7acb\u3061\u307e\u3059\u304c\u3001\u4ed6\u306e\u30cd\u30a4\u30d0\u30fc\u306b\u3064\u3044\u3066\u306f\u3001\u671b\u307e\u3057\u304f\u306a\u3044\u5f71\u97ff\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u3001\u610f\u56f3\u7684\u306b MED \u3092\u4f7f\u7528\u3057\u307e\u305b\u3093\u3002 \u3053\u308c\u306b\u3088\u308a\u3001\u975e\u5bfe\u79f0\u6027\u3092\u4f4e\u6e1b\u3057\u3001\u30a8\u30c3\u30b8\u3067\u306e\u30d1\u30b1\u30c3\u30c8\u640d\u5931\u3092\u6e1b\u3089\u3057\u3001\u30d5\u30ed\u30fc\u3092\u5b89\u5b9a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30d3\u30c7\u30aa\u3001VoIP\u3001\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0 API \u306b\u3068\u3063\u3066\u91cd\u8981\u306a\u3053\u3068\u3067\u3059\u3002.<\/p>\n\n<h2>iBGP \u8a2d\u8a08\u3068\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u30a8\u30c3\u30b8<\/h2>\n\n<p>\u79c1\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u3067\u306f\u3001iBGP \u3092\u4ee5\u4e0b\u3067\u30b9\u30b1\u30fc\u30ea\u30f3\u30b0\u3057\u3066\u3044\u307e\u3059\u3002 <strong>\u30eb\u30fc\u30c8\u30ea\u30d5\u30ec\u30af\u30bf\u30fc<\/strong> \u660e\u78ba\u306a\u30af\u30e9\u30b9\u30bf\u3092\u4f7f\u7528\u3059\u308b\u304b\u3001\u30ea\u30fc\u30d5\u30fb\u30b9\u30d1\u30a4\u30f3\u8a2d\u8a08\u3067\u4e00\u8cab\u3057\u3066 eBGP \u3092\u63a1\u7528\u3057\u307e\u3059\u3002ECMP \u306b\u3088\u308a\u3001\u540c\u7b49\u306e\u512a\u308c\u305f\u30d1\u30b9\u3092\u4e26\u884c\u3057\u3066\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002BFD \u306f\u3001\u8fc5\u901f\u306a\u30ea\u30f3\u30af\u691c\u51fa\u306b\u3088\u308a\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u3092\u77ed\u7e2e\u3057\u3001\u30b0\u30ec\u30fc\u30b9\u30d5\u30eb\u30ea\u30b9\u30bf\u30fc\u30c8\u304a\u3088\u3073\u30b0\u30ec\u30fc\u30b9\u30d5\u30eb\u30b7\u30e3\u30c3\u30c8\u30c0\u30a6\u30f3\u306b\u3088\u308a\u3001\u30cf\u30fc\u30c9\u306a\u5207\u65ad\u3092\u4f34\u308f\u306a\u3044\u8a08\u753b\u7684\u306a\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002 \u79c1\u306f\u3001\u30cd\u30af\u30b9\u30c8\u30db\u30c3\u30d7\u5230\u9054\u6027\u3092\u30af\u30ea\u30fc\u30f3\u306b\u4fdd\u3061\uff08\u30eb\u30fc\u30d7\u30d0\u30c3\u30af\u3001IGP \u5b89\u5b9a\u6027\uff09\u3001\u30c7\u30fc\u30bf\u5c64\u3068\u5236\u5fa1\u5c64\u3092\u5206\u96e2\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u7d50\u679c\u3001\u53ce\u675f\u6642\u9593\u304c\u77ed\u7e2e\u3055\u308c\u3001\u30d5\u30e9\u30c3\u30d7\u304c\u6e1b\u5c11\u3057\u307e\u3057\u305f\u3002 <strong>\u4e88\u6e2c\u53ef\u80fd\u306a<\/strong> \u8ca0\u8377\u6642\u306e\u6319\u52d5\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2025\/12\/bgp-routing-hosting-internet-6284.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>RPKI\u3001IRR\u3001\u30af\u30ea\u30fc\u30f3\u306a ROA<\/h2>\n\n<p>\u79c1\u306f\u3001\u7740\u4fe1\u30eb\u30fc\u30c8\u3092\u4ee5\u4e0b\u3067\u691c\u8a3c\u3057\u307e\u3059\u3002 <strong>RPKI<\/strong> \u307e\u305f\u3001\u9069\u5207\u306a maxLength \u5024\u3092\u6301\u3064\u72ec\u81ea\u306e ROA \u3092\u7ba1\u7406\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u6b63\u5f53\u306a \/24 \u7d30\u5206\u5316 (v4) \u307e\u305f\u306f \/48 (v6) \u304c\u8aa4\u3063\u3066\u300c\u7121\u52b9\u300d\u3068\u5224\u5b9a\u3055\u308c\u308b\u306e\u3092\u9632\u304e\u307e\u3059\u3002 IRR \u30eb\u30fc\u30c8\u30aa\u30d6\u30b8\u30a7\u30af\u30c8 (route\/route6\u3001as-set) \u3092\u540c\u671f\u3057\u3001\u4e0a\u6d41\u306f\u6587\u66f8\u5316\u3055\u308c\u3066\u3044\u308b\u3082\u306e\u306e\u307f\u3092\u53d7\u3051\u5165\u308c\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u65b0\u3057\u3044\u30ed\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u3064\u3044\u3066\u306f\u3001ROA \u306e\u66f4\u65b0\u3092\u8a08\u753b\u3057\u3066\u3044\u307e\u3059\u3002 <em>\u66e9\u306b<\/em> \u6700\u521d\u306e\u30a2\u30ca\u30a6\u30f3\u30b9\u3067\u3002\u7121\u52b9\/\u4e0d\u660e\u306e\u5834\u5408\u306e\u30a2\u30e9\u30fc\u30c8\u306f\u3001\u8a2d\u5b9a\u30df\u30b9\u3092\u3059\u3050\u306b\u898b\u3064\u3051\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u30cf\u30a4\u30b8\u30e3\u30c3\u30af\u306e\u30ea\u30b9\u30af\u304c\u6e1b\u308a\u3001\u79c1\u306e <strong>\u63a5\u982d\u8f9e<\/strong> \u30b0\u30ed\u30fc\u30d0\u30eb\u3002.<\/p>\n\n<h2>BGP Flowspec \u3068\u304d\u3081\u7d30\u304b\u306a\u9632\u5fa1<\/h2>\n\n<p>\u8907\u96d1\u306a\u653b\u6483\u306b\u5bfe\u3057\u3066\u306f\u3001\u79c1\u306f <strong>BGP \u30d5\u30ed\u30fc\u30b9\u30da\u30c3\u30af<\/strong> \u30eb\u30fc\u30eb\uff08\u4f8b\uff1aUDP\/53\u3001\u7279\u5b9a\u306e\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u3001\u30dd\u30fc\u30c8\u3001\u30d1\u30b1\u30c3\u30c8\u30b5\u30a4\u30ba\uff09\u3092\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u30bf\u30a4\u30e0\u30ea\u30fc\u306b\u914d\u5e03\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002 \u79c1\u306f\u30ac\u30fc\u30c9\u30ec\u30fc\u30eb\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u6709\u52b9\u671f\u9650\u3001\u30ec\u30fc\u30c8\u5236\u9650\u3001\u5909\u66f4\u30ec\u30d3\u30e5\u30fc\u306a\u3069\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u526f\u6b21\u7684\u306a\u640d\u5bb3\u3092\u5236\u9650\u3057\u3001\u6b63\u5f53\u306a\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u8aa4\u3063\u3066\u30bc\u30ed\u306b\u3057\u3066\u3057\u307e\u3046\u3053\u3068\u3092\u9632\u304e\u307e\u3059\u3002\u30b9\u30af\u30e9\u30d3\u30f3\u30b0\u30bb\u30f3\u30bf\u30fc\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u3001\u3059\u3079\u3066\u3092\u30d6\u30e9\u30c3\u30af\u30db\u30fc\u30eb\u5316\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u5bfe\u8c61\u3092\u7d5e\u3063\u3066\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u307e\u3059\u3002 <strong>\u3088\u308a\u6b63\u78ba\u306b<\/strong> \u7dca\u6025\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u7528\u30ec\u30f3\u30c1\u3002.<\/p>\n\n<h2>\u65e5\u5e38\u751f\u6d3b\u306b\u304a\u3051\u308bIPv6\uff1a\u54c1\u8cea\u3068\u969c\u5bb3<\/h2>\n\n<p>IPv6 \u306f\u4eca\u65e5\u3001\u9855\u8457\u306a\u8ca0\u8377\u3092\u62b1\u3048\u3066\u3044\u307e\u3059\u3002\u79c1\u306f v6 \u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u500b\u5225\u306b\u76e3\u8996\u3057\u3066\u3044\u307e\u3059\u3002\u306a\u305c\u306a\u3089\u3001\u30cf\u30c3\u30d4\u30fc\u30a2\u30a4\u30dc\u30fc\u30eb\u306f\u554f\u984c\u3092\u8986\u3044\u96a0\u3057\u3066\u3057\u307e\u3046\u304b\u3089\u3067\u3059\u3002MTU \u3068 PMTUD \u304c\u6a5f\u80fd\u3057\u3001ICMPv6 \u304c\u6a5f\u80fd\u3057\u3066\u3044\u306a\u3044\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u3002 <strong>\u30d6\u30ed\u30c3\u30af\u3055\u308c\u305f<\/strong> \u79c1\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3054\u3068\u306b \/64 \u3092\u4fdd\u6301\u3057\u3001\/48 \u306e\u5272\u308a\u5f53\u3066\u3092\u8a08\u753b\u3057\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3067\u306f\u62e1\u5f35\u30d8\u30c3\u30c0\u30fc\u30d1\u30b9\u306b\u6ce8\u610f\u3092\u6255\u3063\u3066\u3044\u307e\u3059\u3002UDP \u4e0a\u306e QUIC \u306f\u3001\u30a8\u30cb\u30fc\u30ad\u30e3\u30b9\u30c8\u306e\u6069\u6075\u3092\u53d7\u3051\u3066\u3044\u307e\u3059\u304c\u3001\u4e00\u8cab\u3057\u305f\u30d1\u30b9\u3068\u3001ECN\/DF \u306e\u9069\u5207\u306a\u51e6\u7406\u304c\u5fc5\u8981\u3067\u3059\u3002\u305d\u306e\u7d50\u679c\u3001\u771f\u306e v6 \u30d1\u30ea\u30c6\u30a3\u3001\u3064\u307e\u308a\u300c\u30d9\u30b9\u30c8\u30a8\u30d5\u30a9\u30fc\u30c8\u300d\u3067\u306f\u306a\u304f\u3001\u30d5\u30a1\u30fc\u30b9\u30c8\u30af\u30e9\u30b9\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u5b9f\u73fe\u3055\u308c\u307e\u3059\u3002.<\/p>\n\n<h2>\u81ea\u52d5\u5316\u3001\u30c6\u30b9\u30c8\u3001\u5909\u66f4\u7ba1\u7406<\/h2>\n\n<p>\u79c1\u306f\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30dd\u30ea\u30b7\u30fc\u3092\u30b3\u30fc\u30c9\u3068\u3057\u3066\u8a18\u8ff0\u3057\u3001\u30ec\u30d3\u30e5\u30fc\u3067\u78ba\u5b9a\u3057\u307e\u3059\u3002 <strong>CI<\/strong>-\u30c1\u30a7\u30c3\u30af\uff08\u69cb\u6587\u3001\u30ea\u30f3\u30c6\u30a3\u30f3\u30b0\u3001\u30dd\u30ea\u30b7\u30fc\u30c6\u30b9\u30c8\uff09\u3002 \u30b9\u30c6\u30fc\u30b8\u30f3\u30b0\u3067\u306f\u3001\u30c6\u30b9\u30c8\u30eb\u30fc\u30c8\uff08ExaBGP \u306a\u3069\uff09\u3092\u633f\u5165\u3057\u3001LocalPref\u3001Prepend\u3001\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u3078\u306e\u5f71\u97ff\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002Max-Prefix-Limits\u3001Session-Disable On Error\u3001\u66f4\u65b0\u306e\u30ec\u30fc\u30c8\u5236\u9650\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u30e9\u30f3\u30d6\u30c3\u30af\uff08GSHUT \u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u3092\u542b\u3080\uff09\u306b\u3088\u308a\u3001\u30a8\u30b9\u30ab\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u9632\u6b62\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u5909\u66f4\u306f\u518d\u73fe\u53ef\u80fd\u3001\u53ef\u9006\u7684\u3001\u305d\u3057\u3066 <strong>\u4e88\u6e2c\u53ef\u80fd<\/strong> \u2013 \u591c\u9593\u306e\u4e88\u671f\u305b\u306c\u51fa\u6765\u4e8b\u306a\u3057\u3002.<\/p>\n\n<h2>\u79fb\u884c\u3001\u30d7\u30ed\u30d0\u30a4\u30c0\u306e\u5909\u66f4\u3001\u30c0\u30a6\u30f3\u30bf\u30a4\u30e0\u30bc\u30ed<\/h2>\n\n<p>\u79c1\u306f\u79fb\u4f4f\u3057\u307e\u3059 <strong>\u4e00\u6b69\u4e00\u6b69<\/strong>\u307e\u305a ROA\/IRR \u3092\u66f4\u65b0\u3057\u3001\u6b21\u306b\u65b0\u3057\u3044\u30a2\u30c3\u30d7\u30b9\u30c8\u30ea\u30fc\u30e0\u3067\u30a2\u30ca\u30a6\u30f3\u30b9\u3092\u6709\u52b9\u306b\u3057\u307e\u3059\u3002\u6700\u521d\u306f\u3001\u30d1\u30fc\u30c8\u30ca\u30fc\u306b\u5bfe\u3057\u3066\u30d7\u30ec\u30da\u30f3\u30c9\u307e\u305f\u306f\u3088\u308a\u4f4e\u3044 LocalPref \u3092\u4f7f\u7528\u3057\u307e\u3059\u3002 Looking Glasses \u3092\u4f7f\u7528\u3057\u3066\u5230\u9054\u7bc4\u56f2\u3092\u30c6\u30b9\u30c8\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u3001\u79fb\u884c\u671f\u9593\u4e2d\u306f\u5f71\u97ff\u3092\u53d7\u3051\u308b \/24 \u3092\u5206\u89e3\u3057\u3066\u3001\u8ca0\u8377\u3092\u5236\u5fa1\u3057\u306a\u304c\u3089\u79fb\u884c\u3057\u307e\u3059\u3002DNS-TTL \u306f\u4e8b\u524d\u306b\u8abf\u6574\u3057\u3001\u30d8\u30eb\u30b9\u30c1\u30a7\u30c3\u30af\u3068 GSHUT \u306b\u3088\u3063\u3066\u30cf\u30fc\u30c9\u30ab\u30c3\u30c8\u30aa\u30d5\u3092\u9632\u304e\u307e\u3059\u3002\u6700\u5f8c\u306b\u3001\u53e4\u3044\u30d1\u30b9\u3092\u64a4\u56de\u3057\u3001\u30e2\u30cb\u30bf\u30ea\u30f3\u30b0\u306b\u3088\u3063\u3066\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u300c\u30c6\u30fc\u30eb\u300d\u3092\u89b3\u5bdf\u3057\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u3057\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u3092\u5931\u3046\u3053\u3068\u306a\u304f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u79fb\u884c\u3057\u307e\u3059\u3002.<\/p>\n\n<h2>\u30b3\u30b9\u30c8\u300195\u30d1\u30fc\u30bb\u30f3\u30bf\u30a4\u30eb\u3001\u30d4\u30a2\u30ea\u30f3\u30b0\u6307\u6a19<\/h2>\n\n<p>\u79c1\u306f\u8f38\u9001\u30b3\u30b9\u30c8\u3092\u6700\u9069\u5316\u3057\u307e\u3059\u3002 <strong>95\u30d1\u30fc\u30bb\u30f3\u30bf\u30a4\u30eb<\/strong>-\u6e2c\u5b9a\u3001\u8ca0\u8377\u5e73\u6e96\u5316\u3001\u304a\u3088\u3073\u30bf\u30fc\u30b2\u30c3\u30c8\u3092\u7d5e\u3063\u305f LocalPref\u3002IXP \u3067\u306e\u6c7a\u6e08\u4e0d\u8981\u306e\u30d4\u30a2\u30ea\u30f3\u30b0\u306f\u3001\u5bb9\u91cf\u304c\u9069\u5207\u3067\u3042\u308c\u3070\u3001\u4e88\u7b97\u306e\u7bc0\u7d04\u3068\u30ec\u30a4\u30c6\u30f3\u30b7\u30fc\u306e\u4f4e\u6e1b\u306b\u3064\u306a\u304c\u308a\u307e\u3059\u3002\u79c1\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3054\u3068\u306e\u4f7f\u7528\u7387\u3001\u30db\u30c3\u30c8\u30ea\u30fc\u30b8\u30e7\u30f3\u3068\u30b3\u30fc\u30eb\u30c9\u30ea\u30fc\u30b8\u30e7\u30f3\u3092\u6e2c\u5b9a\u3057\u3001\u30b3\u30df\u30c3\u30c8\u3057\u304d\u3044\u5024\u306b\u30a2\u30e9\u30fc\u30e0\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002\u8907\u6570\u306e\u30b5\u30a4\u30c8\u304c\u3042\u308b\u5834\u5408\u306f\u3001SLA \u3092\u9075\u5b88\u3057\u3001\u30d0\u30fc\u30b9\u30c8\u3092\u7de9\u548c\u3059\u308b\u3088\u3046\u306b\u8ca0\u8377\u3092\u5206\u6563\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u7d50\u679c\u3001\u6700\u7d42\u7684\u306b\u306f <strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9<\/strong> \u305d\u3057\u3066\u8acb\u6c42\u66f8 \u2013 \u4eba\u5de5\u7684\u306a\u30dc\u30c8\u30eb\u30cd\u30c3\u30af\u306a\u3057\u3002.<\/p>\n\n\n<figure class=\"wp-block-image size-full is-resized\">\n  <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/webhosting.de\/wp-content\/uploads\/2025\/12\/bgp-hosting-rechenzentrum-7184.png\" alt=\"\" width=\"1536\" height=\"1024\"\/>\n<\/figure>\n\n\n<h2>\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30d7\u30ec\u30a4\u30d6\u30c3\u30af<\/h2>\n\n<p>MTR\/Traceroute (v4\/v6)\u3001Looking Glass\u3001BGP \u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u30d5\u30a3\u30fc\u30c9\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u3001\u30a8\u30e9\u30fc\u30d1\u30bf\u30fc\u30f3\u3092 <strong>isolieren<\/strong>. \u79c1\u306f\u9006\u30c8\u30ec\u30fc\u30b9\u30eb\u30fc\u30c8\uff08Reverse Traceroute\uff09\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3001\u975e\u5bfe\u79f0\u30d1\u30b9\u306b\u5bfe\u3057\u3066 TTL \u30d9\u30fc\u30b9\u306e\u30c6\u30b9\u30c8\u3092\u8a2d\u5b9a\u3057\u3001\u8907\u6570\u306e\u8996\u70b9\u304b\u3089\u30ec\u30a4\u30c6\u30f3\u30b7\/\u30db\u30c3\u30d7\u3092\u6bd4\u8f03\u3057\u307e\u3059\u3002\u30e9\u30f3\u30d6\u30c3\u30af\u306b\u306f\u3001\u30eb\u30fc\u30c8\u306e\u64a4\u56de\u3001\u30d7\u30ec\u30da\u30f3\u30c9\u306e\u5897\u52a0\u3001\u30b3\u30df\u30e5\u30cb\u30c6\u30a3\u306e\u8a2d\u5b9a\u3001\u30d6\u30e9\u30c3\u30af\u30db\u30fc\u30eb\u306e\u6709\u52b9\u5316\u3001\u30a4\u30f3\u30b7\u30c7\u30f3\u30c8\u306e\u8a18\u9332\u306a\u3069\u3001\u660e\u78ba\u306a\u624b\u9806\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u307e\u3059\u3002 \u4e8b\u5f8c\u691c\u8a3c\u306f\u3001\u30d5\u30a3\u30eb\u30bf\u306e\u7cbe\u5ea6\u5411\u4e0a\u3001ROA 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