{"id":524,"date":"2026-07-06T06:08:30","date_gmt":"2026-07-06T06:08:30","guid":{"rendered":"https:\/\/rufreevpn.org\/"},"modified":"2026-07-06T06:29:46","modified_gmt":"2026-07-06T06:29:46","slug":"what-is-a-vpn-protocol","status":"publish","type":"post","link":"https:\/\/rufreevpn.org\/ja\/post\/what-is-a-vpn-protocol\/","title":{"rendered":"VPN\u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u306f\uff1f"},"content":{"rendered":"

VPN\u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u306f\u3001\u30c7\u30d0\u30a4\u30b9\u3068VPN\u30b5\u30fc\u30d0\u30fc\u9593\u306e\u30c7\u30fc\u30bf\u8ee2\u9001\u65b9\u6cd5\u3092\u53b3\u5bc6\u306b\u5b9a\u3081\u305f\u3001\u6a19\u6e96\u5316\u3055\u308c\u305f\u30eb\u30fc\u30eb\u3068\u6307\u793a\u306e\u96c6\u5408\u3067\u3059\u3002\u3053\u308c\u306f\u5b89\u5168\u306a\u30c8\u30f3\u30cd\u30eb\u306e\u300c\u53d6\u6271\u8aac\u660e\u66f8\u300d\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3001\u6697\u53f7\u5316\u3001\u8a8d\u8a3c\u3001\u30c7\u30fc\u30bf\u6574\u5408\u6027\u306b\u4f7f\u7528\u3055\u308c\u308b\u6b63\u78ba\u306a\u65b9\u6cd5\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002VPN\u81ea\u4f53\u304c\u63a5\u7d9a\u3092\u78ba\u7acb\u3059\u308b\u4e00\u65b9\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u901f\u5ea6\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3001\u5b89\u5b9a\u6027\u306e\u91cd\u8981\u306a\u30d0\u30e9\u30f3\u30b9\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u4e00\u90e8\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u6700\u5927\u9650\u306e\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u5f37\u529b\u306a\u6697\u53f7\u5316\u3092\u512a\u5148\u3059\u308b\u4e00\u65b9\u3001\u4ed6\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u3084\u30b2\u30fc\u30e0\u5411\u3051\u306b\u6700\u901f\u306e\u901f\u5ea6\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u307e\u3059\u3002<\/p>\n\n\n\n

\n

\u4e00\u822c\u7684\u306aVPN\u30d7\u30ed\u30c8\u30b3\u30eb<\/h3>\n

\u7570\u306a\u308b\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u30c7\u30fc\u30bf\u3092\u51e6\u7406\u3059\u308b\u305f\u3081\u306b\u7570\u306a\u308b\u6697\u53f7\u6280\u8853\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3001\u6700\u3082\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u3082\u306e\u306e\u5185\u8a33\u3067\u3059\u3002<\/p>\n \n

\n \n \n \n \n \n \n \n \n
\u30d7\u30ed\u30c8\u30b3\u30eb<\/th>\n \u4e3b\u306a\u7279\u5fb4\u3068\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/th>\n <\/tr>\n <\/thead>\n
\n WireGuard<\/a>\n <\/td>\n \u8efd\u91cf\u306a\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u3068\u5353\u8d8a\u3057\u305f\u901f\u5ea6\u3067\u77e5\u3089\u308c\u308b\u30e2\u30c0\u30f3\u306a\u6a19\u6e96\u3002\u9ad8\u6027\u80fd\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u3068\u4f4e\u30ec\u30a4\u30c6\u30f3\u30b7\u306b\u6700\u9069\u3067\u3059\u3002<\/td>\n <\/tr>\n
\n OpenVPN<\/a>\n <\/td>\n \u975e\u5e38\u306b\u6c4e\u7528\u6027\u304c\u9ad8\u304f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u30d0\u30a4\u30d1\u30b9\u6a5f\u80fd\u306e\u696d\u754c\u4fe1\u983c\u57fa\u6e96\u3068\u3057\u3066\u5e83\u304f\u8a8d\u3081\u3089\u308c\u3066\u3044\u308b\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u30d7\u30ed\u30c8\u30b3\u30eb\u3002<\/td>\n <\/tr>\n
\n IKEv2\/IPsec<\/a>\n <\/td>\n \u30e2\u30d0\u30a4\u30eb\u30c7\u30d0\u30a4\u30b9\u306b\u6700\u9069\u3067\u3001Wi-Fi\u3068\u30bb\u30eb\u30e9\u30fc\u30c7\u30fc\u30bf\u306e\u5207\u308a\u66ff\u3048\u6642\u306b\u63a5\u7d9a\u3092\u518d\u78ba\u7acb\u3059\u308b\u306e\u306b\u975e\u5e38\u306b\u52b9\u679c\u7684\u3067\u3059\u3002<\/td>\n <\/tr>\n
\n L2TP\/IPsec<\/a>\n <\/td>\n \u53e4\u3044\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3001\u4e00\u822c\u7684\u306b\u306f\u4f4e\u901f\u3067\u3059\u304c\u3001\u30ec\u30ac\u30b7\u30fc\u30b7\u30b9\u30c6\u30e0\u3084\u53e4\u3044\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3067\u306e\u57fa\u672c\u7684\u306a\u4e92\u63db\u6027\u306e\u305f\u3081\u306b\u4eca\u3067\u3082\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/td>\n <\/tr>\n <\/tbody>\n <\/table>\n <\/div>\n<\/div>\n\n\n\n

WireGuard: \u5b89\u5168\u306a\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u306e\u305f\u3081\u306e\u30e2\u30c0\u30f3\u30b9\u30bf\u30f3\u30c0\u30fc\u30c9<\/h2>\n\n\n\n

WireGuard\u306f\u3001IPsec\u3084OpenVPN\u3068\u3044\u3063\u305f\u5f93\u6765\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u4ee3\u308f\u308b\u3001\u6d17\u7df4\u3055\u308c\u305f\u30e2\u30c0\u30f3\u306a\u9078\u629e\u80a2\u3068\u3057\u3066\u767b\u5834\u3057\u3001\u30bb\u30ad\u30e5\u30a2\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u306b\u304a\u3051\u308b\u5927\u304d\u306a\u98db\u8e8d\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002Jason Donenfeld\u306b\u3088\u3063\u3066\u958b\u767a\u3055\u308c\u305f\u305d\u306e\u4f7f\u547d\u306f\u30b7\u30f3\u30d7\u30eb\u3067\u3057\u305f\u3002\u904e\u53bb\u306e\u80a5\u5927\u5316\u3057\u305f\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3092\u6392\u9664\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u5f93\u6765\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u6570\u5341\u4e07\u884c\u306b\u53ca\u3076\u5de8\u5927\u306a\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u306b\u5727\u8feb\u3055\u308c\u3066\u3044\u308b\u4e00\u65b9\u3067\u3001WireGuard\u306f\u308f\u305a\u304b\u7d044,000\u884c\u306e\u30b3\u30fc\u30c9\u3067\u52d5\u4f5c\u3057\u307e\u3059\u3002\u3053\u306e\u30df\u30cb\u30de\u30ea\u30ba\u30e0\u306f\u898b\u4e8b\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6226\u7565\u3067\u3042\u308a\u3001\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u304c\u30b3\u30f3\u30d1\u30af\u30c8\u3067\u3042\u308b\u307b\u3069\u653b\u6483\u5bfe\u8c61\u9818\u57df\u304c\u5927\u5e45\u306b\u6e1b\u5c11\u3057\u3001\u72ec\u7acb\u3057\u305f\u76e3\u67fb\u304c\u5bb9\u6613\u306b\u306a\u308a\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30d1\u30c3\u30c1\u3082\u8fc5\u901f\u306b\u9069\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n

\"WireGuard\"
WireGuard<\/figcaption><\/figure>\n\n\n\n

WireGuard\u306f\u5b89\u5168\u306a\u3060\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u751f\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u305f\u3081\u306b\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002Linux\u30ab\u30fc\u30cd\u30eb\u7a7a\u9593\u5185\u3067\u76f4\u63a5\u52d5\u4f5c\u3059\u308b\u3053\u3068\u3067\u3001\u53e4\u3044\u30e6\u30fc\u30b6\u30fc\u30b9\u30da\u30fc\u30b9\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u9045\u304f\u3059\u308b\u91cd\u3044\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3084\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u30b9\u30a4\u30c3\u30c1\u3092\u56de\u907f\u3057\u307e\u3059\u3002\u6642\u4ee3\u9045\u308c\u306e\u6697\u53f7\u5316\u306e\u4ee3\u308f\u308a\u306b\u3001ChaCha20\u3001Curve25519\u3001Poly1305\u3092\u5099\u3048\u305f\u6700\u5148\u7aef\u306e\u300c\u6697\u53f7\u30b9\u30a4\u30fc\u30c8\u300d\u306b\u4f9d\u5b58\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u6700\u65b0\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306f\u3001AES\u30a2\u30af\u30bb\u30e9\u30ec\u30fc\u30b7\u30e7\u30f3\u304c\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u3067\u3082\u3001\u307b\u307c\u3059\u3079\u3066\u306e\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3067\u975e\u5e38\u306b\u52b9\u7387\u7684\u3067\u3059\u3002\u305d\u306e\u7d50\u679c\u3001\u30e6\u30fc\u30b6\u30fc\u306f\u307b\u307c\u77ac\u6642\u306e\u63a5\u7d9a\u6642\u9593\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9593\u306e\u30b7\u30fc\u30e0\u30ec\u30b9\u306a\u30cf\u30f3\u30c9\u30aa\u30d5\u3001\u305d\u3057\u3066\u6bd4\u985e\u306e\u306a\u3044\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n

OpenVPN\u306e\u907a\u7523\u3068\u529b<\/h2>\n\n\n\n

\u7d0420\u5e74\u306b\u308f\u305f\u308a\u3001OpenVPN\u306f\u5b89\u5168\u306a\u30dd\u30a4\u30f3\u30c8\u30c4\u30fc\u30dd\u30a4\u30f3\u30c8\u304a\u3088\u3073\u30b5\u30a4\u30c8\u9593\u63a5\u7d9a\u3092\u78ba\u7acb\u3059\u308b\u305f\u3081\u306e\u696d\u754c\u6a19\u6e96\u3068\u3057\u3066\u541b\u81e8\u3057\u3066\u304d\u307e\u3057\u305f\u30022001\u5e74\u306b\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u305f\u3053\u306e\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u30c7\u30fc\u30bf\u3092\u4fdd\u8b77\u3059\u308b\u305f\u3081\u306e\u900f\u660e\u6027\u304c\u9ad8\u304f\u9ad8\u5ea6\u306b\u30ab\u30b9\u30bf\u30de\u30a4\u30ba\u53ef\u80fd\u306a\u65b9\u6cd5\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u3067\u696d\u754c\u306b\u9769\u547d\u3092\u3082\u305f\u3089\u3057\u307e\u3057\u305f\u3002\u305d\u306e\u9577\u5bff\u547d\u306f\u4e3b\u306b\u300c\u5b9f\u6226\u3067\u935b\u3048\u3089\u308c\u305f\u300d\u6027\u8cea\u306b\u3088\u308b\u3082\u306e\u3067\u3059\u3002\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u304c\u8ab0\u3067\u3082\u691c\u67fb\u3067\u304d\u308b\u3088\u3046\u306b\u516c\u958b\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u6570\u5341\u5e74\u306b\u308f\u305f\u308b\u53b3\u683c\u306a\u72ec\u7acb\u76e3\u67fb\u3092\u53d7\u3051\u3066\u304d\u307e\u3057\u305f\u3002\u3053\u306e\u900f\u660e\u6027\u306b\u3088\u308a\u3001\u4ed6\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u307b\u3068\u3093\u3069\u9054\u6210\u3067\u304d\u306a\u3044\u30ec\u30d9\u30eb\u306e\u4fe1\u983c\u304c\u69cb\u7bc9\u3055\u308c\u3001\u5b9f\u9a13\u7684\u306a\u901f\u5ea6\u3088\u308a\u3082\u5b9f\u7e3e\u3092\u91cd\u8996\u3059\u308b\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u91cd\u8996\u306e\u7d44\u7e54\u3084\u500b\u4eba\u30e6\u30fc\u30b6\u30fc\u306b\u597d\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

\"OpenVPN\u306f\u3069\u306e\u3088\u3046\u306b\u52d5\u4f5c\u3059\u308b\u304b\"
OpenVPN\u306f\u3069\u306e\u3088\u3046\u306b\u52d5\u4f5c\u3059\u308b\u304b<\/figcaption><\/figure>\n\n\n\n

OpenVPN\u306e\u6700\u5927\u306e\u5229\u70b9\u306e\u4e00\u3064\u306f\u3001\u5236\u9650\u306e\u53b3\u3057\u3044\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u691c\u95b2\u3092\u56de\u907f\u3059\u308b\u969b\u306e\u6bd4\u985e\u306a\u304d\u6c4e\u7528\u6027\u3067\u3059\u3002\u591a\u304f\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u7279\u5b9a\u306e\u30dd\u30fc\u30c8\u306b\u5236\u9650\u3055\u308c\u3066\u3044\u308b\u306e\u306b\u5bfe\u3057\u3001OpenVPN\u306f\u6700\u5927\u901f\u5ea6\u3092\u5b9f\u73fe\u3059\u308bUDP\u3068\u6700\u5927\u4fe1\u983c\u6027\u3092\u5b9f\u73fe\u3059\u308bTCP\u306e\u4e21\u65b9\u3067\u52d5\u4f5c\u3059\u308b\u3088\u3046\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002\u6a19\u6e96\u7684\u306aHTTPS\u30a6\u30a7\u30d6\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3068\u540c\u3058TCP\u30dd\u30fc\u30c8443\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001OpenVPN\u306fVPN\u30c7\u30fc\u30bf\u3092\u901a\u5e38\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u95b2\u89a7\u3068\u3057\u3066\u52b9\u679c\u7684\u306b\u507d\u88c5\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u4ed6\u306eVPN\u30b7\u30b0\u30cd\u30c1\u30e3\u304cDeep Packet Inspection\uff08DPI\uff09\u306b\u3088\u3063\u3066\u5bb9\u6613\u306b\u691c\u51fa\u30fb\u30d6\u30ed\u30c3\u30af\u3055\u308c\u308b\u9ad8\u691c\u95b2\u74b0\u5883\u306e\u30e6\u30fc\u30b6\u30fc\u306b\u3068\u3063\u3066\u3001\u5f37\u529b\u306a\u30c4\u30fc\u30eb\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n

OpenVPN\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u57fa\u76e4\u306fOpenSSL\u30e9\u30a4\u30d6\u30e9\u30ea\u306b\u69cb\u7bc9\u3055\u308c\u3066\u304a\u308a\u3001\u3053\u308c\u306b\u3088\u308a\u9ad8\u5ea6\u306a\u6697\u53f7\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u5e83\u7bc4\u306a\u30e9\u30a4\u30d6\u30e9\u30ea\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u3059\u3002\u6700\u3082\u4e00\u822c\u7684\u306b\u306fAES-256\u6697\u53f7\u5316\u3092\u5229\u7528\u3057\u3066\u304a\u308a\u3001\u3053\u308c\u306f\u4e16\u754c\u4e2d\u306e\u653f\u5e9c\u3084\u8ecd\u4e8b\u6a5f\u95a2\u3067\u4f7f\u7528\u3055\u308c\u308b\u307b\u3069\u5b89\u5168\u306a\u6a19\u6e96\u3067\u3059\u3002\u5358\u7d14\u306a\u6697\u53f7\u5316\u3092\u8d85\u3048\u3066\u3001OpenVPN\u306f\u30c7\u30b8\u30bf\u30eb\u8a3c\u660e\u66f8\u3001\u4e8b\u524d\u5171\u6709\u9375\u3001\u591a\u8981\u7d20\u8a8d\u8a3c\u306a\u3069\u3001\u591a\u69d8\u306a\u8a8d\u8a3c\u65b9\u6cd5\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

\u3057\u304b\u3057\u3001\u3053\u306e\u591a\u7528\u9014\u6027\u306e\u91cd\u307f\u306b\u306f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u4e0a\u306e\u4ee3\u511f\u304c\u4f34\u3044\u307e\u3059\u3002OpenVPN\u306f10\u4e07\u884c\u3092\u8d85\u3048\u308b\u5de8\u5927\u306a\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u3092\u6301\u3061\u3001\u65b0\u3057\u3044\u8efd\u91cf\u306a\u30d7\u30ed\u30c8\u30b3\u30eb\u3088\u308a\u3082\u7dad\u6301\u30fb\u76e3\u67fb\u304c\u306f\u308b\u304b\u306b\u56f0\u96e3\u3067\u3059\u3002\u3055\u3089\u306b\u3001OpenVPN\u306f\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u306e\u300c\u30e6\u30fc\u30b6\u30fc\u30b9\u30da\u30fc\u30b9\u300d\u3067\u52d5\u4f5c\u3059\u308b\u305f\u3081\u3001\u30c7\u30fc\u30bf\u306e\u6697\u53f7\u5316\u30fb\u5fa9\u53f7\u5316\u306b\u3088\u308a\u591a\u304f\u306eCPU\u30ea\u30bd\u30fc\u30b9\u3092\u5fc5\u8981\u3068\u3057\u3001\u30e2\u30d0\u30a4\u30eb\u7aef\u672b\u3067\u306f\u30ec\u30a4\u30c6\u30f3\u30b7\u306e\u5897\u52a0\u3084\u30d0\u30c3\u30c6\u30ea\u30fc\u6d88\u8cbb\u306e\u5897\u5927\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u5e83\u7bc4\u306a\u6a5f\u80fd\u30bb\u30c3\u30c8\u306b\u3088\u308a\u9ad8\u5ea6\u306a\u300c\u5fae\u8abf\u6574\u300d\u304c\u53ef\u80fd\u306b\u306a\u308b\u4e00\u65b9\u3067\u3001WireGuard\u306e\u3088\u3046\u306a\u73fe\u4ee3\u7684\u306a\u4ee3\u66ff\u30d7\u30ed\u30c8\u30b3\u30eb\u3088\u308a\u3082\u6df1\u3044\u6280\u8853\u7684\u77e5\u8b58\u3092\u5fc5\u8981\u3068\u3059\u308b\u6025\u306a\u5b66\u7fd2\u66f2\u7dda\u3092\u751f\u307f\u51fa\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u6b20\u70b9\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001OpenVPN\u306f\u305d\u306e\u6975\u3081\u3066\u9ad8\u3044\u67d4\u8edf\u6027\u306820\u5e74\u306b\u308f\u305f\u308b\u73fe\u5834\u3067\u306e\u5b9f\u7e3e\u306b\u3088\u308a\u3001\u30c7\u30b8\u30bf\u30eb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u91cd\u8981\u306a\u67f1\u3068\u3057\u3066\u4eca\u3082\u306a\u304a\u8a55\u4fa1\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

The Reliability and Mobility of IKEv2\/IPsec<\/h2>\n\n\n\n

IKEv2\uff08Internet Key Exchange version 2\uff09\u306f\u3001\u6697\u53f7\u5316\u3068\u8a8d\u8a3c\u306e\u305f\u3081\u306b\u901a\u5e38IPsec\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u7528\u3055\u308c\u308b\u5805\u7262\u306a\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002Microsoft\u3068Cisco\u304c\u5171\u540c\u958b\u767a\u3057\u305f\u3053\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u79fb\u884c\u4e2d\u306b\u6c38\u7d9a\u7684\u306a\u63a5\u7d9a\u3092\u7dad\u6301\u3059\u308b\u72ec\u81ea\u306e\u6a5f\u80fd\u306b\u3088\u308a\u3001VPN\u696d\u754c\u3067\u6a19\u6e96\u7684\u306a\u5b58\u5728\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u30c7\u30d0\u30a4\u30b9\u304c\u4fe1\u53f7\u3092\u5931\u3063\u305f\u308a\u3001\u30bf\u30ef\u30fc\u3092\u5207\u308a\u66ff\u3048\u305f\u308a\u3057\u305f\u969b\u306b\u63a5\u7d9a\u304c\u5207\u65ad\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u53e4\u3044\u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u306f\u7570\u306a\u308a\u3001IKEv2\u306b\u306f\u300cMOBIKE\u300d\uff08\u30e2\u30d3\u30ea\u30c6\u30a3\u3068\u30de\u30eb\u30c1\u30db\u30fc\u30df\u30f3\u30b0\uff09\u6a5f\u80fd\u304c\u642d\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001Wi-Fi\u3068\u643a\u5e2f\u30c7\u30fc\u30bf\u3092\u983b\u7e41\u306b\u5207\u308a\u66ff\u3048\u308b\u30e2\u30d0\u30a4\u30eb\u30e6\u30fc\u30b6\u30fc\u306b\u3068\u3063\u3066\u975e\u5e38\u306b\u56de\u5fa9\u529b\u304c\u9ad8\u304f\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u624b\u52d5\u3067\u518d\u63a5\u7d9a\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u307b\u307c\u77ac\u6642\u306b\u5b89\u5168\u306a\u30c8\u30f3\u30cd\u30eb\u3092\u518d\u78ba\u7acb\u3067\u304d\u307e\u3059\u3002\n\n\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u89b3\u70b9\u304b\u3089\u3001IKEv2\/IPsec\u306f\u5f37\u529b\u306a\u6697\u53f7\u5316\u30b5\u30dd\u30fc\u30c8\u3068\u9ad8\u901f\u30c7\u30fc\u30bf\u8ee2\u9001\u306e\u51e6\u7406\u80fd\u529b\u3067\u9ad8\u304f\u8a55\u4fa1\u3055\u308c\u3066\u3044\u307e\u3059\u3002IPsec\u30b9\u30a4\u30fc\u30c8\u3092\u5229\u7528\u3057\u3066\u30c7\u30fc\u30bf\u30d1\u30b1\u30c3\u30c8\u306b\u5b89\u5168\u306a\u30ec\u30a4\u30e4\u30fc\u3092\u63d0\u4f9b\u3057\u3001\u901a\u5e38\u306fAES-256\u6697\u53f7\u5316\u3092\u63a1\u7528\u3057\u3066\u3001\u508d\u53d7\u3055\u308c\u305f\u30c7\u30fc\u30bf\u304c\u8aad\u307f\u53d6\u308c\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u4e3b\u306a\u6280\u8853\u7684\u5229\u70b9\u306e1\u3064\u306f\u3001Windows\u3001macOS\u3001iOS\u306a\u3069\u591a\u304f\u306e\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u3067\u30cd\u30a4\u30c6\u30a3\u30d6\u306b\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3067\u3059\u3002\u3053\u306e\u30cd\u30a4\u30c6\u30a3\u30d6\u30b5\u30dd\u30fc\u30c8\u306b\u3088\u308a\u3001\u30e6\u30fc\u30b6\u30fc\u306f\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u88fd\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u3053\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4f7f\u7528\u3057\u3066VPN\u63a5\u7d9a\u3092\u8a2d\u5b9a\u3067\u304d\u308b\u3053\u3068\u304c\u591a\u304f\u3001\u30c7\u30d0\u30a4\u30b9\u306e\u30b7\u30b9\u30c6\u30e0\u30ea\u30bd\u30fc\u30b9\u3078\u306e\u8ca0\u8377\u304c\u5c11\u306a\u304f\u3001\u3088\u308a\u30af\u30ea\u30fc\u30f3\u3067\u7d71\u5408\u3055\u308c\u305f\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

IKEv2\/IPsec\u306e\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306f\u4e00\u822c\u7684\u306bOpenVPN\u3088\u308a\u3082\u512a\u308c\u3066\u304a\u308a\u3001\u3088\u308a\u52b9\u7387\u7684\u3067CPU\u8ca0\u8377\u304c\u4f4e\u304f\u306a\u308b\u3088\u3046\u8a2d\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u65b0\u3057\u3044WireGuard\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u3088\u3046\u306a\u6975\u7aef\u306a\u901f\u5ea6\u306b\u306f\u9054\u3057\u306a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306e\u512a\u308c\u305f\u30d0\u30e9\u30f3\u30b9\u3092\u5b9f\u73fe\u3057\u3066\u304a\u308a\u3001\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u3084\u5b89\u5168\u306a\u4f01\u696d\u30ea\u30e2\u30fc\u30c8\u30a2\u30af\u30bb\u30b9\u306a\u3069\u306e\u9ad8\u5e2f\u57df\u5e45\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u306b\u6700\u9069\u306a\u9078\u629e\u80a2\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u3001IKEv2\u306f\u9ad8\u5ea6\u306a\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306b\u3088\u3063\u3066\u30d6\u30ed\u30c3\u30af\u3055\u308c\u3084\u3059\u3044\u5834\u5408\u304c\u3042\u308b\u3053\u3068\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002\u3053\u308c\u306f\u901a\u5e38\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7ba1\u7406\u8005\u304c\u5bb9\u6613\u306b\u8b58\u5225\u3067\u304d\u308b\u7279\u5b9a\u306e\u30dd\u30fc\u30c8\u30bb\u30c3\u30c8\u3092\u4f7f\u7528\u3059\u308b\u305f\u3081\u3067\u3059\u3002\u305d\u308c\u3067\u3082\u3001\u901f\u5ea6\u3001\u30cd\u30a4\u30c6\u30a3\u30d6\u4e92\u63db\u6027\u3001\u30e2\u30d0\u30a4\u30eb\u30c7\u30d0\u30a4\u30b9\u3067\u306e\u6bd4\u985e\u306e\u306a\u3044\u5b89\u5b9a\u6027\u306e\u7d44\u307f\u5408\u308f\u305b\u306b\u3088\u308a\u3001\u73fe\u4ee3\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\u306e\u6700\u524d\u7dda\u306b\u4f4d\u7f6e\u3057\u7d9a\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

The Compatibility and Legacy of L2TP\/IPsec<\/h2>\n\n\n\n

\u30ec\u30a4\u30e4\u30fc2\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u30d7\u30ed\u30c8\u30b3\u30eb\uff08L2TP\uff09\u306f\u3001\u65e7\u6765\u306e\u30dd\u30a4\u30f3\u30c8\u30c4\u30fc\u30dd\u30a4\u30f3\u30c8\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u30d7\u30ed\u30c8\u30b3\u30eb\uff08PPTP\uff09\u306e\u62e1\u5f35\u3067\u3042\u308a\u3001\u5358\u72ec\u3067\u306f\u4e0d\u8db3\u3059\u308b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u88dc\u3046\u305f\u3081\u306b\u3001\u307b\u307c\u5e38\u306bIPsec\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002L2TP\u304c2\u70b9\u9593\u306e\u30c7\u30fc\u30bf\u8ee2\u9001\u3092\u53ef\u80fd\u306b\u3059\u308b\u30c8\u30f3\u30cd\u30eb\u3092\u4f5c\u6210\u3059\u308b\u4e00\u65b9\u3001IPsec\u304c\u6697\u53f7\u5316\u3068\u8a8d\u8a3c\u306e\u4e3b\u8981\u306a\u51e6\u7406\u3092\u62c5\u5f53\u3057\u307e\u3059\u3002\u3053\u306e\u7d44\u307f\u5408\u308f\u305b\u306f\u9577\u5e74\u306b\u308f\u305f\u308a\u4f01\u696d\u306e\u30ea\u30e2\u30fc\u30c8\u30a2\u30af\u30bb\u30b9\u306e\u6a19\u6e96\u3067\u3042\u308a\u3001\u73fe\u5728\u3067\u3082\u9ad8\u3044\u4e92\u63db\u6027\u3092\u6301\u3064\u9078\u629e\u80a2\u3067\u3059\u3002L2TP\/IPsec\u306f\u3001\u53e4\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\u306eWindows\u304b\u3089\u6700\u65b0\u306e\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u306b\u81f3\u308b\u307e\u3067\u3001\u4e8b\u5b9f\u4e0a\u3059\u3079\u3066\u306e\u6700\u65b0OS\u3067\u30cd\u30a4\u30c6\u30a3\u30d6\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u88fd\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u304c\u5236\u9650\u307e\u305f\u306f\u4e0d\u53ef\u80fd\u306a\u30c7\u30d0\u30a4\u30b9\u3067VPN\u63a5\u7d9a\u3092\u78ba\u7acb\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u3001\u3057\u3070\u3057\u3070\u7b2c\u4e00\u306e\u9078\u629e\u80a2\u3068\u306a\u308a\u307e\u3059\u3002\n\n\u6280\u8853\u7684\u306a\u89b3\u70b9\u304b\u3089\u898b\u308b\u3068\u3001L2TP\/IPsec\u306e\u6700\u3082\u7279\u5fb4\u7684\u306a\u70b9\u306f\u300c\u4e8c\u91cd\u30ab\u30d7\u30bb\u30eb\u5316\u300d\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002\u3053\u306e\u65b9\u5f0f\u3067\u306f\u3001\u30c7\u30fc\u30bf\u306f\u6700\u521d\u306bL2TP\u30d1\u30b1\u30c3\u30c8\u306b\u30e9\u30c3\u30d7\u3055\u308c\u3001\u6b21\u306b\u6697\u53f7\u5316\u306e\u305f\u3081\u306bIPsec\u30d1\u30b1\u30c3\u30c8\u306b\u518d\u5ea6\u30e9\u30c3\u30d7\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u5f37\u529b\u306a\u4fdd\u8b77\u5c64\u304c\u63d0\u4f9b\u3055\u308c\u308b\u4e00\u65b9\u3067\u3001\u5927\u304d\u306a\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u3082\u767a\u751f\u3057\u307e\u3059\u3002\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u30922\u56de\u51e6\u7406\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u305f\u3081\u3001L2TP\/IPsec\u306f\u4e00\u822c\u7684\u306bWireGuard\u3084IKEv2\u306a\u3069\u306e\u8efd\u91cf\u30d7\u30ed\u30c8\u30b3\u30eb\u3088\u308a\u3082\u4f4e\u901f\u3067CPU\u8ca0\u8377\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u304c\u4f4e\u4e0b\u3057\u3001\u30ec\u30a4\u30c6\u30f3\u30b7\u304c\u5897\u52a0\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001\u30b2\u30fc\u30e0\u30844K\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u306a\u3069\u306e\u9ad8\u901f\u30bf\u30b9\u30af\u306b\u306f\u9069\u3057\u3066\u3044\u307e\u305b\u3093\u304c\u3001\u6a19\u6e96\u7684\u306aWeb\u30d6\u30e9\u30a6\u30b8\u30f3\u30b0\u3084\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u5171\u6709\u306b\u306f\u5341\u5206\u306b\u5b9f\u7528\u7684\u3067\u3059\u3002<\/p>\n\n\n\n

\"How
How L2TP\/IPsec work<\/figcaption><\/figure>\n\n\n\n

\u73fe\u4ee3\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u74b0\u5883\u306b\u304a\u3051\u308bL2TP\/IPsec\u306e\u4e3b\u8981\u306a\u8ab2\u984c\u306e\u4e00\u3064\u306f\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u306b\u3088\u308b\u30d6\u30ed\u30c3\u30af\u3092\u53d7\u3051\u3084\u3059\u3044\u3053\u3068\u3067\u3059\u3002\u3053\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u901a\u5e38\u3001UDP 500\u3084UDP 4500\u306a\u3069\u306e\u56fa\u5b9a\u30dd\u30fc\u30c8\u306b\u4f9d\u5b58\u3057\u3066\u304a\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7ba1\u7406\u8005\u3084\u653f\u5e9c\u306e\u691c\u95b2\u6a5f\u95a2\u304cDeep Packet Inspection\uff08DPI\uff09\u3092\u7528\u3044\u3066\u5bb9\u6613\u306b\u8b58\u5225\u30fb\u5236\u9650\u3067\u304d\u307e\u3059\u3002OpenVPN\u304c\u4e00\u822c\u7684\u306aWeb\u30dd\u30fc\u30c8\u3067\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u96a0\u853d\u3067\u304d\u308b\u306e\u306b\u5bfe\u3057\u3001L2TP\/IPsec\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u3067\u975e\u5e38\u306b\u300c\u76ee\u7acb\u3061\u300d\u3001\u30b9\u30c6\u30eb\u30b9\u6a5f\u80fd\u3092\u6b20\u3044\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u5236\u9650\u3084\u8001\u673d\u5316\u3057\u305f\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u306b\u3082\u304b\u304b\u308f\u3089\u305a\u3001L2TP\/IPsec\u306f\u305d\u306e\u666e\u904d\u7684\u306a\u4e92\u63db\u6027\u3068\u3001\u9045\u3044\u306a\u304c\u3089\u3082\u4fe1\u983c\u6027\u306e\u9ad8\u3044VPN\u306e\u30d9\u30c6\u30e9\u30f3\u3068\u3057\u3066\u306e\u5730\u4f4d\u304b\u3089\u3001\u4e16\u754c\u4e2d\u3067\u4f7f\u7528\u3055\u308c\u7d9a\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

VPN\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u9032\u5316\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u305d\u306e\u3082\u306e\u306e\u6b74\u53f2\u3092\u53cd\u6620\u3057\u3066\u3044\u307e\u3059\u3002\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3001\u901f\u5ea6\u3001\u4e92\u63db\u6027\u306e\u9593\u3067\u306e\u7d76\u3048\u9593\u306a\u3044\u30d0\u30e9\u30f3\u30b9\u304c\u6c42\u3081\u3089\u308c\u3066\u304d\u307e\u3057\u305f\u3002L2TP\/IPsec\u306e\u3088\u3046\u306a\u30ec\u30ac\u30b7\u30fc\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u53e4\u3044\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3078\u306e\u6a4b\u6e21\u3057\u3092\u63d0\u4f9b\u3057\u3001OpenVPN\u306f\u691c\u95b2\u56de\u907f\u306e\u305f\u3081\u306e\u300c\u30b9\u30a4\u30b9\u30a2\u30fc\u30df\u30fc\u30ca\u30a4\u30d5\u300d\u3068\u3057\u3066\u4eca\u3082\u6d3b\u8e8d\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u696d\u754c\u306f\u660e\u3089\u304b\u306b\u52b9\u7387\u7684\u306a\u672a\u6765\u3078\u3068\u5411\u304b\u3063\u3066\u3044\u307e\u3059\u3002IKEv2\/IPsec\u306f\u79fb\u52d5\u4e2d\u3067\u3082\u5b89\u5b9a\u6027\u3092\u5fc5\u8981\u3068\u3059\u308b\u30e2\u30d0\u30a4\u30eb\u30e6\u30fc\u30b6\u30fc\u306b\u3068\u3063\u3066\u5f15\u304d\u7d9a\u304d\u983c\u308a\u306b\u306a\u308b\u5b58\u5728\u3067\u3059\u304c\u3001WireGuard\u306f\u6c7a\u5b9a\u7684\u306a\u30b2\u30fc\u30e0\u30c1\u30a7\u30f3\u30b8\u30e3\u30fc\u3068\u3057\u3066\u767b\u5834\u3057\u307e\u3057\u305f\u3002\u6700\u5148\u7aef\u306e\u6697\u53f7\u6280\u8853\u3068\u6700\u5c0f\u9650\u306e\u30b3\u30fc\u30c9\u30d9\u30fc\u30b9\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001WireGuard\u306f\u5b89\u5168\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u304c\u9045\u304f\u3066\u8907\u96d1\u3067\u3042\u308b\u5fc5\u8981\u306f\u306a\u3044\u3053\u3068\u3092\u8a3c\u660e\u3057\u3066\u3044\u307e\u3059\u3002\n\n\u7d50\u5c40\u306e\u3068\u3053\u308d\u3001\u3042\u3089\u3086\u308b\u72b6\u6cc1\u306b\u6700\u9069\u306a\u5358\u4e00\u306e\u300c\u30d9\u30b9\u30c8\u300d\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u5b58\u5728\u3057\u307e\u305b\u3093\u3002\u9069\u5207\u306a\u9078\u629e\u306f\u3001\u304a\u4f7f\u3044\u306e\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3001\u901f\u5ea6\u306e\u30cb\u30fc\u30ba\u3001\u305d\u3057\u3066\u514b\u670d\u3057\u3088\u3046\u3068\u3059\u308b\u691c\u95b2\u306e\u30ec\u30d9\u30eb\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u30c7\u30b8\u30bf\u30eb\u30c8\u30f3\u30cd\u30eb\u306e\u3053\u308c\u3089\u306e\u300c\u53d6\u6271\u8aac\u660e\u66f8\u300d\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u30aa\u30f3\u30e9\u30a4\u30f3\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3068\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u5b8c\u5168\u306b\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>","protected":false},"excerpt":{"rendered":"

A VPN protocol is a standardized set of rules and instructions that determines exactly how data is transmitted between your device and a VPN server. Think of it as the “instruction manual” for the secure tunnel, defining the precise methods used for encryption, authentication, and data integrity. While the VPN itself establishes the connection, the protocol dictates the critical balance between speed, security, and stability. For instance, some protocols prioritize heavy encryption to ensure maximum privacy, whereas others minimize overhead to deliver the fastest possible speeds for streaming or gaming. Common VPN Protocols Different protocols use different cryptographic techniques to handle your data. Here is a breakdown of the most […]<\/p>\n","protected":false},"author":1,"featured_media":530,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"What is a VPN Protocol?","_seopress_titles_desc":"What is a VPN protocol and which should you choose? Compare WireGuard, OpenVPN, IKEv2, and L2TP to find the perfect balance of speed, security, and stability.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-524","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-post"],"_links":{"self":[{"href":"https:\/\/rufreevpn.org\/ja\/wp-json\/wp\/v2\/posts\/524","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rufreevpn.org\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rufreevpn.org\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rufreevpn.org\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/rufreevpn.org\/ja\/wp-json\/wp\/v2\/comments?post=524"}],"version-history":[{"count":1,"href":"https:\/\/rufreevpn.org\/ja\/wp-json\/wp\/v2\/posts\/524\/revisions"}],"predecessor-version":[{"id":525,"href":"https:\/\/rufreevpn.org\/ja\/wp-json\/wp\/v2\/posts\/524\/revisions\/525"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rufreevpn.org\/ja\/wp-json\/wp\/v2\/media\/530"}],"wp:attachment":[{"href":"https:\/\/rufreevpn.org\/ja\/wp-json\/wp\/v2\/media?parent=524"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rufreevpn.org\/ja\/wp-json\/wp\/v2\/categories?post=524"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rufreevpn.org\/ja\/wp-json\/wp\/v2\/tags?post=524"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}