{"id":38027,"date":"2026-01-14T02:07:07","date_gmt":"2026-01-14T10:07:07","guid":{"rendered":"https:\/\/www.privateinternetaccess.com\/blog\/?p=38027"},"modified":"2026-05-15T06:34:16","modified_gmt":"2026-05-15T13:34:16","slug":"pptp-vpn","status":"publish","type":"post","link":"https:\/\/www.privateinternetaccess.com\/ja\/blog\/pptp-vpn\/","title":{"rendered":"PPTP VPN\u3068\u306f\uff1fPPTP\uff08Point-to-Point Tunneling Protocol\uff09\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">PPTP\uff08Point-to-Point Tunneling Protocol\uff09\u306f\u3001\u4eca\u3067\u3082\u4f7f\u308f\u308c\u3066\u3044\u308b\u6700\u3082\u53e4\u3044VPN\u30d7\u30ed\u30c8\u30b3\u30eb\u306e1\u3064\u3067\u3059\u3002\u4e00\u90e8\u306e\u53e4\u3044\u6a5f\u7a2e\u3084Windows 10\u300111\u3067\u306fPPTP VPN\u3092\u73fe\u5728\u3082\u6709\u52b9\u306b\u3067\u304d\u307e\u3059\u304c\u3001PPTP\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u4eca\u3067\u306f\u6642\u4ee3\u9045\u308c\u3067\u3001\u5b89\u5168\u9762\u3084\u4fe1\u983c\u6027\u306e\u61f8\u5ff5\u304c\u6319\u3052\u3089\u308c\u3066\u304a\u308a\u3001\u307b\u3068\u3093\u3069\u306eVPN\u30d7\u30ed\u30d0\u30a4\u30c0\u306fPPTP\u306e\u30b5\u30dd\u30fc\u30c8\u3092\u7d42\u4e86\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u8a18\u4e8b\u3067\u306f\u3001PPTP VPN\u3068\u306f\u4f55\u304b\u3001PPTP\u306e\u4ed5\u7d44\u307f\u3001PPTP\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u61f8\u5ff5\u3055\u308c\u308b\u7406\u7531\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3059\u3002\u307e\u305f\u3001<a href=\"https:\/\/www.privateinternetaccess.com\/blog\/wireguard-vs-openvpn\/\">OpenVPN\u3084WireGuard<\/a>\u3068\u3044\u3063\u305f\u6700\u65b0\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u306e\u6bd4\u8f03\u3082\u307e\u3068\u3081\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"wia\">PPTP\u3068\u306f\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">PPTP\uff08Point-to-Point Tunneling Protocol\uff09\u306f\u3001\u6700\u3082\u53e4\u3044VPN\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u3072\u3068\u3064\u3067\u3059\u3002\u793e\u54e1\u304c\u30ea\u30e2\u30fc\u30c8\u63a5\u7d9a\u3067\u793e\u5185\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u5b89\u5168\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u3001\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u793e\u304c1990\u5e74\u4ee3\u534a\u3070\u306b\u958b\u767a\u3057\u305f\u3082\u306e\u3067\u3059\u3002\u30c0\u30a4\u30e4\u30eb\u30a2\u30c3\u30d7\u6642\u4ee3\uff08\u521d\u671f\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u74b0\u5883\uff09\u306e\u5f53\u6642\u306f\u9ad8\u901f\u3067\u8a2d\u5b9a\u3082\u7c21\u5358\u3060\u3063\u305f\u305f\u3081\u3001\u7406\u306b\u304b\u306a\u3063\u305f\u3082\u306e\u3067\u3057\u305f\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">PPTP\u306f\u305d\u306e\u4ed6\u306eVPN\u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u540c\u3058\u304f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u901a\u4fe1\u3092\u30c8\u30f3\u30cd\u30eb\u7d4c\u7531\u3067VPN\u30b5\u30fc\u30d0\u30fc\u306b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3057\u3001\u305d\u3053\u304b\u3089\u76ee\u7684\u5730\u3078\u9001\u4fe1\u3057\u307e\u3059\u3002PPTP\u306e\u30c8\u30f3\u30cd\u30eb\u306f\u6697\u53f7\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001PPTP\u304c\u63a1\u7528\u3057\u3066\u3044\u308b\u6697\u53f7\u5316\u304a\u3088\u3073\u8a8d\u8a3c\u65b9\u5f0f\u306f\u3001\u73fe\u4ee3\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8981\u4ef6\u306e\u6c34\u6e96\u3092\u6e80\u305f\u3057\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">PPTP\u306f\u8a8d\u8a3c\u65b9\u5f0f\u300cMS-CHAPv2\u300d\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u3053\u308c\u306f\u73fe\u4ee3\u306e\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3067\u3042\u308c\u3070\u6570\u6642\u9593\u3001\u5834\u5408\u306b\u3088\u3063\u3066\u306f\u6570\u5206\u3067\u7834\u3089\u308c\u3066\u3057\u307e\u3046\u65b9\u5f0f\u3067\u3059\u3002\u4e00\u5ea6\u4fb5\u5bb3\u3055\u308c\u308b\u3068\u3001\u653b\u6483\u8005\u306fMPPE\uff08Microsoft Point-to-Point Encryption\uff09\u901a\u4fe1\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u6697\u53f7\u5316\u30ad\u30fc\u3092\u63a8\u6e2c\u3057\u3066\u3001\u30c8\u30f3\u30cd\u30eb\u3092\u901a\u904e\u3059\u308b\u901a\u4fe1\u3092\u5fa9\u53f7\u5316\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0a\u8a18\u306e\u8106\u5f31\u6027\u61f8\u5ff5\u306e\u305f\u3081\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5c02\u9580\u5bb6\u306fPPTP\u306e\u4f7f\u7528\u3092\u907f\u3051\u308b\u3088\u3046\u63a8\u5968\u3057\u3066\u304a\u308a\u3001PIA\uff08Private Internet Access\uff09\u3092\u59cb\u3081\u3068\u3059\u308b\u307b\u3068\u3093\u3069\u306eVPN\u30d7\u30ed\u30d0\u30a4\u30c0\u306fPPTP\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u5b8c\u5168\u306b\u5ec3\u6b62\u3057\u3066\u3044\u307e\u3059\u3002\u306a\u304a\u3001PIA\u3067\u306f\u4eca\u65e5\u306e\u6697\u53f7\u5316\u57fa\u6e96\u3092\u6e80\u305f\u3059<a href=\"https:\/\/www.privateinternetaccess.com\/blog\/beginners-guide-to-vpn-encryption-protocols\/\">\u6700\u65b0\u306e\u30d7\u30ed\u30c8\u30b3\u30eb<\/a>\u306e\u307f\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/techcommunity.microsoft.com\/blog\/windowsservernewsandbestpractices\/pptp-and-l2tp-deprecation-a-new-era-of-secure-connectivity\/4263956\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u3082PPTP\u3092\u5ec3\u6b62<\/a>\u3057\u3001SSTP\u3084IKEv2\u306e\u3088\u3046\u306a\u3088\u308a\u5b89\u5168\u306a\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u63a8\u5968\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u4e00\u90e8\u306e\u30ec\u30ac\u30b7\u30fc\u74b0\u5883\u3067\u306fPPTP\u304c\u4f9d\u7136\u3068\u3057\u3066\u4f7f\u3048\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-pptp\u306e\u4ed5\u7d44\u307f\">PPTP\u306e\u4ed5\u7d44\u307f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">PPTP\u306f\u3001\u8907\u6570\u306e\u53e4\u3044\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u7d44\u307f\u5408\u308f\u305b\u3066VPN\u30c8\u30f3\u30cd\u30eb\u3092\u69cb\u7bc9\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u304c\u9023\u643a\u3057\u3066\u3001\u63a5\u7d9a\u306e\u78ba\u7acb\u3001\u8a8d\u8a3c\u3001\u6697\u53f7\u5316\u3001\u304a\u3088\u3073\u30c7\u30fc\u30bf\u8ee2\u9001\u3092\u51e6\u7406\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>TCP\uff08Transmission Control Protocol\uff091723\u756a\uff1a<\/strong>\u30c7\u30d0\u30a4\u30b9\u3068VPN\u30b5\u30fc\u30d0\u30fc\u9593\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u78ba\u7acb\u3001\u8a2d\u5b9a\u3001\u7ba1\u7406\u3068\u3044\u3063\u305fPPTP\u5236\u5fa1\u3092\u51e6\u7406\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>MS-CHAPv2\uff1a<\/strong>\u30c1\u30e3\u30ec\u30f3\u30b8\u30fb\u30ec\u30b9\u30dd\u30f3\u30b9\u65b9\u5f0f\u3092\u7528\u3044\u305f\u8a8d\u8a3c\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3001\u30cf\u30c3\u30b7\u30e5\u5316\u3055\u308c\u305f\u30d1\u30b9\u30ef\u30fc\u30c9\u3068\u30b5\u30fc\u30d0\u30fc\u304c\u8a08\u7b97\u3057\u305f\u30cf\u30c3\u30b7\u30e5\u5024\u3092\u6bd4\u8f03\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>MPPE\uff08Microsoft Point-to-Point Encryption\uff09\uff1a<\/strong>\u901a\u4fe1\u3092\u6697\u53f7\u5316\u3057\u3001\u7279\u5b9a\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u30ad\u30fc\u304c\u306a\u3051\u308c\u3070\u89e3\u8aad\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>RC4\uff1a<\/strong>\u3053\u308c\u306f\u6697\u53f7\u5316\u65b9\u5f0f\u3067\u3001\u5358\u4e00\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u30ad\u30fc\u3092\u4f7f\u3063\u3066\u3001\u901a\u4fe1\u30921\u30d0\u30a4\u30c8\u305a\u3064\u30b9\u30af\u30e9\u30f3\u30d6\u30eb\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>PPP\uff08Point-to-Point Protocol\uff09\uff1a<\/strong>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u901a\u4fe1\u3092\u30ab\u30d7\u30bb\u30eb\u5316\u304a\u3088\u3073\u69cb\u9020\u5316\u3057\u3001\u4eee\u60f3IP\u30a2\u30c9\u30ec\u30b9\u3092\u5272\u308a\u5f53\u3066\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30eb\u30fc\u30eb\u3092\u5b9a\u7fa9\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>GRE\uff08Generic Routing Encapsulation\uff09\uff1a<\/strong>PPP\u30d5\u30ec\u30fc\u30e0\u3092\u30ab\u30d7\u30bb\u30eb\u5316\u3057\u3001\u516c\u5171\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306a\u3069\u306e\u4e00\u822c\u7684\u306aIP\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u7d4c\u7531\u3057\u3066VPN\u30c8\u30f3\u30cd\u30eb\u3092\u901a\u904e\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/05\/JA-PPTP-VPN-Connection-Flow-Japanese.png\" alt=\"\u5178\u578b\u7684\u306aPPTP VPN\u63a5\u7d9a\u306e\u6d41\u308c\u3092\u307e\u3068\u3081\u305f\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8\u3002\"><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">PPTP VPN\u306f\u3001\u4ee5\u4e0b\u306e\u4ed5\u7d44\u307f\u3067\u901a\u4fe1\u30c7\u30fc\u30bf\u304c\u9001\u4fe1\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u63a5\u7d9a\u958b\u59cb\uff1a<\/strong>\u30c7\u30d0\u30a4\u30b9\uff08\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\uff09\u304cTCP\u30dd\u30fc\u30c81723\u756a\u3067VPN\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u5236\u5fa1\u30c1\u30e3\u30cd\u30eb\u3092\u958b\u304d\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30bb\u30c3\u30b7\u30e7\u30f3\u30cd\u30b4\u30b7\u30a8\u30fc\u30b7\u30e7\u30f3\uff1a<\/strong> TCP\u5236\u5fa1\u30c1\u30e3\u30cd\u30eb\u3092\u4ecb\u3057\u3066\u3001VPN\u30b5\u30fc\u30d0\u30fc\u3068\u30c7\u30d0\u30a4\u30b9\u304cPPP\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u5404\u7a2e\u30d1\u30e9\u30e1\u30fc\u30bf\uff08\u30d5\u30ec\u30fc\u30e0\u30b5\u30a4\u30ba\u3001\u5727\u7e2e\u3001\u8aa4\u308a\u8a02\u6b63\u65b9\u5f0f\u306a\u3069\uff09\u306b\u3064\u3044\u3066\u30cd\u30b4\u30b7\u30a8\u30fc\u30b7\u30e7\u30f3\u3092\u884c\u3044\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u8a8d\u8a3c\u30c1\u30e3\u30ec\u30f3\u30b8\uff1a<\/strong>\u30bb\u30c3\u30b7\u30e7\u30f3\u306e\u57fa\u672c\u4e8b\u9805\u304c\u5408\u610f\u3055\u308c\u308b\u3068\u3001VPN\u30b5\u30fc\u30d0\u30fc\u306f\u30c7\u30d0\u30a4\u30b9\u306b\u5bfe\u3057\u3066\u8a8d\u8a3c\u3092\u8981\u6c42\u3057\u307e\u3059\u3002VPN\u30b5\u30fc\u30d0\u30fc\u306f\u30e9\u30f3\u30c0\u30e0\u306a\u5024\u3092\u30c7\u30d0\u30a4\u30b9\u306b\u9001\u4fe1\u3057\u3001\u30c7\u30d0\u30a4\u30b9\u306f\u5024\u3092\u30d1\u30b9\u30ef\u30fc\u30c9\u3068\u7d44\u307f\u5408\u308f\u305b\u3066MS-CHAP 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class=\"wp-block-paragraph\"><strong>PPTP\u306b\u306f2\u3064\u306e\u30e2\u30fc\u30c9\u304c\u3042\u308a\u307e\u3059\u3002<\/strong>\u81ea\u767a\u30e2\u30fc\u30c9\u3067\u306f\u3001\u307e\u305a\u901a\u5e38\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u3092\u78ba\u7acb\u3057\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001VPN\u30c8\u30f3\u30cd\u30eb\u3092\u78ba\u7acb\u3057\u307e\u3059\u3002\u5f37\u5236\u30e2\u30fc\u30c9\u3067\u306f\u3001\u30c7\u30d0\u30a4\u30b9\u304c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u63a5\u7d9a\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5074\u306e\u8a2d\u5b9a\u306b\u3088\u308a\u901a\u4fe1\u304c\u5f37\u5236\u7684\u306bVPN\u30c8\u30f3\u30cd\u30eb\u7d4c\u7531\u306b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-pptp\u306e\u30e1\u30ea\u30c3\u30c8\">PPTP\u306e\u30e1\u30ea\u30c3\u30c8<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>\u30e1\u30ea\u30c3\u30c8<\/strong><\/td><td><strong>\u89e3\u8aac<\/strong><\/td><\/tr><tr><td><strong>\u30ec\u30ac\u30b7\u30fc\u30b7\u30b9\u30c6\u30e0\u3068\u4e92\u63db\u6027\u304c\u3042\u308b<\/strong><\/td><td>PPTP\u306f\u30012000\u5e74\u4ee3\u521d\u982d\u306eWindows\u3001macOS\u3001\u304a\u3088\u3073\u30e2\u30d0\u30a4\u30eb\u7aef\u672b\u306e\u65e7\u30d0\u30fc\u30b8\u30e7\u30f3\u306b\u304a\u3044\u3066\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u306eVPN\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u3057\u305f\u3002\u3088\u3063\u3066\u3001\u30ec\u30ac\u30b7\u30fc\u30c7\u30d0\u30a4\u30b9\u306e\u4e2d\u306b\u306f\u3001\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308bVPN\u30d7\u30ed\u30c8\u30b3\u30eb\u304cPPTP\u3057\u304b\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/td><\/tr><tr><td><strong>\u51e6\u7406\u80fd\u529b\u306e\u4f4e\u3044\u30cf\u30fc\u30c9\u30a6\u30a7\u30a2\u3067\u3082\u4f7f\u3048\u308b<\/strong><\/td><td>PPTP\u306eRC4\u30b9\u30c8\u30ea\u30fc\u30e0\u6697\u53f7\u5316\u306f\u3001\u8ca0\u8377\u304c\u307b\u3068\u3093\u3069\u304b\u304b\u308a\u307e\u305b\u3093\u306e\u3067\u3001\u53e4\u3044\u30ce\u30fc\u30c8\u30d1\u30bd\u30b3\u30f3\u3001\u30eb\u30fc\u30bf\u30fc\u3001\u5185\u8535\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c7\u30d0\u30a4\u30b9\u3067\u3082\u30b9\u30e0\u30fc\u30ba\u306b\u52d5\u4f5c\u3057\u307e\u3059\u3002<\/td><\/tr><tr><td><strong>\u8a2d\u5b9a\u304c\u7c21\u5358<\/strong><\/td><td>\u8a2d\u5b9a\u306b\u5fc5\u8981\u306a\u306e\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u30a2\u30c9\u30ec\u30b9\u3001\u30e6\u30fc\u30b6\u30fc\u540d\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u3060\u3051\u3067\u3059\u3002\u8a3c\u660e\u66f8\u3084\u30b5\u30fc\u30c9\u30d1\u30fc\u30c6\u30a3\u88fd\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/td><\/tr><tr><td><strong>\u6a5f\u5bc6\u6027\u306e\u4f4e\u3044\u901a\u4fe1\u306b\u5229\u7528\u53ef\u80fd<\/strong><\/td><td>PPTP\u306e\u6697\u53f7\u5316\u306f\u8106\u5f31\u3067\u3059\u304c\u3001\u30b2\u30b9\u30c8\u30c7\u30d0\u30a4\u30b9\u306e\u9694\u96e2\u3001VPN\u306e\u63a5\u7d9a\u30c6\u30b9\u30c8\u3001\u307e\u305f\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u7d4c\u7531\u3067\u306e\u6a5f\u5bc6\u6027\u306e\u4f4e\u3044\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3059\u308b\u5206\u306b\u306f\u554f\u984c\u306a\u3044\u3067\u3057\u3087\u3046\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"pc\">PPTP\u306e\u30c7\u30e1\u30ea\u30c3\u30c8<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>\u30c7\u30e1\u30ea\u30c3\u30c8<\/strong><\/td><td><strong>\u89e3\u8aac<\/strong><\/td><\/tr><tr><td><strong>RC4\u6697\u53f7\u5316\u306e\u8106\u5f31\u6027<\/strong><\/td><td>RC4\u306f128\u30d3\u30c3\u30c8\u306e\u9375\u3092\u4f7f\u3063\u3066\u3044\u308b\u306e\u3067\u672c\u6765\u306f\u5f37\u56fa\u3067\u3042\u308b\u306f\u305a\u3067\u3059\u304c\u3001\u9375\u30b9\u30b1\u30b8\u30e5\u30fc\u30ea\u30f3\u30b0\u30d7\u30ed\u30bb\u30b9\uff08KSA\uff09\u306b\u5f31\u70b9\u304c\u3042\u308a\u3001\u89e3\u8aad\u306e\u30d2\u30f3\u30c8\u306b\u306a\u308b\u624b\u304c\u304b\u308a\u304c\u6697\u53f7\u5316\u30c7\u30fc\u30bf\u306b\u6b8b\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u3053\u306e\u6697\u53f7\u5316\u306b\u306f\u504f\u308a\u304c\u3042\u308a\u3001\u4e88\u6e2c\u53ef\u80fd\u306a\u51fa\u529b\u3092\u751f\u6210\u3059\u308b\u305f\u3081\u5f37\u5ea6\u304c\u4f4e\u4e0b\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001PPTP\u306f\u30d6\u30eb\u30fc\u30c8\u30d5\u30a9\u30fc\u30b9\u653b\u6483\u3084\u6700\u65b0\u306e\u7d71\u8a08\u7684\u89e3\u6790\u306b\u5bfe\u3057\u3066\u8106\u5f31\u3067\u3059\u3002<\/td><\/tr><tr><td><strong>MS-CHAPv2\u306f\u30b5\u30a4\u30d0\u30fc\u8105\u5a01\u306b\u8106\u5f31<\/strong><\/td><td>\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u8005\u306f\u3001\u4e8b\u524d\u8a08\u7b97\u6e08\u307f\u30c6\u30fc\u30d6\u30eb\uff08\u30ec\u30a4\u30f3\u30dc\u30fc\u30c6\u30fc\u30d6\u30eb\uff09\u3084\u30d6\u30eb\u30fc\u30c8\u30d5\u30a9\u30fc\u30b9\u653b\u6483\u30c4\u30fc\u30eb\u3092\u4f7f\u3063\u3066MS-CHAPv2\u306e\u30cf\u30c3\u30b7\u30e5\u3092\u89e3\u8aad\u3067\u304d\u308b\u305f\u3081\u3001\u3053\u306e\u8a8d\u8a3c\u65b9\u6cd5\u306f\u4eca\u65e5\u306e\u57fa\u6e96\u3067\u306f\u5b89\u5168\u3068\u306f\u8a00\u3048\u307e\u305b\u3093\u3002<\/td><\/tr><tr><td><strong>PFS\uff08\u5b8c\u5168\u524d\u65b9\u79d8\u533f\u6027\uff09\u306b\u975e\u5bfe\u5fdc<\/strong><\/td><td>MPPE\u3068RC4\u306f\u5358\u4e00\u306e\u6697\u53f7\u5316\u9375\u3092\u4f7f\u7528\u3057\u3066\u304a\u308a\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u4e2d\u306b\u305d\u306e\u9375\u304c\u30ed\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u307e\u305f\u306f\u66f4\u65b0\u3055\u308c\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3088\u3063\u3066\u3001\u3053\u306e\u9375\u304c\u6f0f\u6d29\u3057\u305f\u5834\u5408\u3001\u904e\u53bb\u304a\u3088\u3073\u4eca\u5f8c\u306e\u901a\u4fe1\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u53d6\u3089\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/td><\/tr><tr><td><strong>NAT\u30c8\u30e9\u30d0\u30fc\u30b5\u30eb\u6a5f\u80fd\u304c\u306a\u3044<\/strong><\/td><td>\u30eb\u30fc\u30bf\u30fc\u306f\u3001\u9001\u4fe1\u3055\u308c\u308b\u901a\u4fe1\u3092\u8ffd\u8de1\u3059\u308b\u305f\u3081\u306bTCP\u307e\u305f\u306fUDP\u30dd\u30fc\u30c8\u756a\u53f7\u3092\u4f7f\u3063\u305fNAT\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u5909\u63db\uff09\u306e\u6280\u8853\u3092\u7528\u3044\u3066\u3044\u307e\u3059\u3002\u3057\u304b\u3057\u3001PPTP\u306fGRE\uff08\u30dd\u30fc\u30c8\u756a\u53f7\u3092\u6301\u305f\u306a\u3044\uff09\u3092\u4ecb\u3057\u3066\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3059\u308b\u305f\u3081\u3001\u6b63\u5e38\u306b\u6a5f\u80fd\u3055\u305b\u308b\u306b\u306f\u30eb\u30fc\u30bf\u30fc\u3067PPTP\u30d1\u30b9\u30b9\u30eb\u30fc\uff08GRE\u30b5\u30dd\u30fc\u30c8\uff09\u304c\u5fc5\u8981\u3068\u306a\u308a\u307e\u3059\u3002<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"pvo\">PPTP\u3068\u305d\u306e\u4ed6\u306eVPN\u30d7\u30ed\u30c8\u30b3\u30eb\uff08L2TP\u3001IKEv2\u3001OpenVPN\u3001WireGuard\uff09\u3068\u306e\u6bd4\u8f03<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">PPTP\u306f\u3001IKEv2\u3001OpenVPN\u3001WireGuard\u3068\u3044\u3063\u305f\u4ed6\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u6bd4\u8f03\u3059\u308b\u3068\u3001\u6697\u53f7\u5316\u306e\u5f37\u5ea6\u3084\u9375\u7ba1\u7406\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3068\u306e\u4e92\u63db\u6027\u3001\u9577\u671f\u7684\u306a\u4fe1\u983c\u6027\u306a\u3069\u3001\u4eca\u65e5\u91cd\u8981\u3068\u3055\u308c\u308b\u307b\u307c\u3059\u3079\u3066\u306e\u9805\u76ee\u306b\u304a\u3044\u3066\u52a3\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>\u30d7\u30ed\u30c8\u30b3\u30eb<\/strong><\/td><td><strong>\u6697\u53f7\u5316<\/strong><\/td><td><strong>PFS\uff08\u5b8c\u5168\u524d\u65b9\u79d8\u533f\u6027\uff09<\/strong><\/td><td><strong>NAT \u5bfe\u5fdc<\/strong><\/td><td><strong>\u5e73\u5747\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8<\/strong><\/td><td><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ec\u30d9\u30eb<\/strong><\/td><td><strong>\u5bfe\u5fdc\u30c7\u30d0\u30a4\u30b9<\/strong><\/td><\/tr><tr><td><strong>PPTP<\/strong><\/td><td>MPPE\uff08RC4\u3092\u4f7f\u7528\u3001\u8106\u5f31\u6027\u3042\u308a\uff09<\/td><td>\u306a\u3057<\/td><td>GRE \u30d1\u30b9\u30b9\u30eb\u30fc\u304c\u5fc5\u8981<\/td><td>\u30ec\u30ac\u30b7\u30fc\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u9ad8\u3044<\/td><td>\u4f4e<\/td><td>\u53e4\u3044Windows\u3084\u30eb\u30fc\u30bf\u30fc<\/td><\/tr><tr><td><strong>L2TP\u202f+\u202fIPSec<\/strong><\/td><td>AES-256\uff08\u8a2d\u5b9a\u306b\u3088\u308b\uff09<\/td><td>\u8a2d\u5b9a\u53ef\u80fd<\/td><td>UDP500\u756a\u304a\u3088\u30734500\u756a\u30dd\u30fc\u30c8\u304c\u5fc5\u8981<\/td><td>\u4e2d<\/td><td>\u4e2d<\/td><td>\u307b\u3068\u3093\u3069\u306eOS\u306b\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u308b<\/td><\/tr><tr><td><strong>IKEv2\u202f+\u202fIPSec<\/strong><\/td><td>AES-256-GCM \/ ChaCha20<\/td><td>\u5185\u8535<\/td><td>\u30ed\u30fc\u30df\u30f3\u30b0\/\u30e2\u30d0\u30a4\u30eb\u74b0\u5883\u306b\u304a\u3044\u3066\u7279\u306b\u5f37\u529b<\/td><td>\u9ad8<\/td><td>\u975e\u5e38\u306b\u9ad8\u3044<\/td><td>\u307b\u3068\u3093\u3069\u306eOS\u3001\u30eb\u30fc\u30bf\u30fc<\/td><\/tr><tr><td><strong>OpenVPN<\/strong><\/td><td>AES-256-GCM \/ ChaCha20<\/td><td>\u5185\u8535<\/td><td>TCP\u307e\u305f\u306fUDP\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u4f7f\u7528\u3059\u308b\u3042\u3089\u3086\u308b\u30dd\u30fc\u30c8<\/td><td>\u975e\u5e38\u306b\u9ad8\u3044<\/td><td>\u975e\u5e38\u306b\u9ad8\u3044<\/td><td>\u307b\u3068\u3093\u3069\u306eOS\uff08\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u5fc5\u8981\uff09<\/td><\/tr><tr><td><strong>WireGuard<\/strong><\/td><td>ChaCha20-Poly1305<\/td><td>\u5185\u8535<\/td><td>\u5358\u4e00\u306eUDP\u30dd\u30fc\u30c8\uff0851820\u756a\uff09\u3092\u4f7f\u7528<\/td><td>\u975e\u5e38\u306b\u9ad8\u3044<\/td><td>\u975e\u5e38\u306b\u9ad8\u3044<\/td><td>\u307b\u3068\u3093\u3069\u306eOS\uff08\u6bd4\u8f03\u7684\u65b0\u3057\u3044\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0a\u8a18\u306e\u5404\u9805\u76ee\u306e\u7528\u8a9e\u306e\u610f\u5473\u306b\u3064\u3044\u3066\u3001\u7c21\u5358\u306b\u307e\u3068\u3081\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6697\u53f7\u5316\uff1a<\/strong>\u30aa\u30f3\u30e9\u30a4\u30f3\u4e0a\u306e\u30c7\u30fc\u30bf\u3092\u3001\u6b63\u3057\u3044\u9375\u3092\u6301\u3064\u8005\u3060\u3051\u304c\u89e3\u8aad\u3067\u304d\u308b\u5224\u8aad\u4e0d\u53ef\u80fd\u306a\u30b3\u30fc\u30c9\u306b\u5909\u63db\u3057\u307e\u3059\u3002\u6697\u53f7\u5316\u898f\u683c\u304c\u5f37\u529b\u3067\u3042\u308c\u3070\u3042\u308b\u307b\u3069\u3001\u30c7\u30fc\u30bf\u306e\u89e3\u8aad\u306f\u306f\u308b\u304b\u306b\u56f0\u96e3\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>PFS\uff08\u5b8c\u5168\u524d\u65b9\u79d8\u533f\u6027\uff09\uff1a<\/strong>VPN\u30bb\u30c3\u30b7\u30e7\u30f3\u3054\u3068\u306b\u4e00\u610f\u306e\u6697\u53f7\u5316\u30ad\u30fc\u3092\u751f\u6210\u3057\u3001\u5b9a\u671f\u7684\u306b\u5909\u66f4\u3059\u308b\u305f\u3081\u3001\u305f\u3068\u30481\u3064\u306e\u30ad\u30fc\u304c\u6f0f\u6d29\u3057\u3066\u3082\u3001\u904e\u53bb\u3084\u5c06\u6765\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u304c\u5371\u967a\u306b\u3055\u3089\u3055\u308c\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/li>\n\n\n\n<li><strong>NAT\u5bfe\u5fdc\uff1a<\/strong>\u5404VPN\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u3001NAT\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u5909\u63db\uff09\u6280\u8853\u3068\u9023\u643a\u3059\u308b\u4ed5\u7d44\u307f\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002NAT\u306f\u3001\u8907\u6570\u306e\u30c7\u30d0\u30a4\u30b9\u9593\u3067\u5358\u4e00\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u5171\u6709\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u3001\u307b\u3068\u3093\u3069\u306e\u5bb6\u5ead\u7528\u30eb\u30fc\u30bf\u30fc\u3084\u516c\u5171\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u63a1\u7528\u3055\u308c\u3066\u3044\u308b\u6280\u8853\u3067\u3059\u3002NAT\u5bfe\u5fdc\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3084\u30eb\u30fc\u30bf\u30fc\u306b\u8907\u96d1\u306a\u8a2d\u5b9a\u3059\u308b\u5fc5\u8981\u306a\u304f\u3001\u3088\u308a\u30b9\u30e0\u30fc\u30ba\u306b\u63a5\u7d9a\u3067\u304d\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\uff1a<\/strong>VPN\u304c1\u79d2\u3042\u305f\u308a\u306b\u9001\u53d7\u4fe1\u3067\u304d\u308b\u30c7\u30fc\u30bf\u91cf\u3092\u6e2c\u5b9a\u3057\u307e\u3059\u3002\u30b9\u30eb\u30fc\u30d7\u30c3\u30c8\u304c\u9ad8\u3044\u307b\u3069\u3001\u30d6\u30e9\u30a6\u30b8\u30f3\u30b0\u3001\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u3001\u30d5\u30a1\u30a4\u30eb\u8ee2\u9001\u306e\u901f\u5ea6\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"wsy\">PPTP VPN\u3092\u4f7f\u3046\u30b1\u30fc\u30b9\u3068\u306f\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u7387\u76f4\u306a\u3068\u3053\u308d\u3001\u4ed6\u306b\u9078\u629e\u80a2\u304c\u306a\u3044\u5834\u5408\u3092\u9664\u3044\u3066\u306f\u907f\u3051\u308b\u3079\u304d\u3067\u3059\u3002PPTP VPN\u3092\u4f7f\u3046\u30b1\u30fc\u30b9\u3068\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u5834\u5408\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6700\u8fd1\u306eVPN\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u306a\u3044\u53e4\u3044\u30c7\u30d0\u30a4\u30b9\u306e\u5834\u5408\u3002<\/li>\n\n\n\n<li>\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u3067\u3001\u6a5f\u5bc6\u6027\u306e\u306a\u3044\u30c7\u30fc\u30bf\u901a\u4fe1\uff08\u30b2\u30b9\u30c8\u7528Wi-Fi\u30c7\u30d0\u30a4\u30b9\u306a\u3069\uff09\u306b\u4f7f\u3046\u5834\u5408\u3002<\/li>\n\n\n\n<li>VPN\u8a2d\u5b9a\u306e\u30c6\u30b9\u30c8\u3084\u4e92\u63db\u6027\u306e\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u884c\u3046\u5834\u5408\u3002<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p><div style=\"background-color: #cfe2f3; padding: 1em; border-radius: 1em;\"><p><strong>PIA\u306e\u3088\u3046\u306a\u696d\u754c\u30c8\u30c3\u30d7\u30af\u30e9\u30b9\u306eVPN\u306f\u3001\u5b89\u5168\u6027\u304c\u629c\u7fa4\u3067\u9ad8\u901f\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u63a1\u7528\u3057\u3066\u304a\u308a<\/strong>\u3001\u307b\u307c\u3059\u3079\u3066\u306e\u6700\u8fd1\u306e\u30c7\u30d0\u30a4\u30b9\u3084\u30eb\u30fc\u30bf\u30fc\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002\u66f4\u306b\u3001<a href=\"https:\/\/www.privateinternetaccess.com\/ja\/buy-vpn-online\">PIA\u306f30\u65e5\u9593\u306e\u8fd4\u91d1\u4fdd\u8a3c\u4ed8\u304d<\/a>\u306a\u306e\u3067\u91d1\u92ad\u7684\u30ea\u30b9\u30af\u306a\u304f\u3001\u30b5\u30fc\u30d3\u30b9\u304c\u3054\u81ea\u8eab\u306e\u30cb\u30fc\u30ba\u306b\u5408\u3063\u3066\u3044\u308b\u304b\u6c17\u8efd\u306b\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"hts\">PPTP VPN\u306e\u8a2d\u5b9a\u65b9\u6cd5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">PPTP\u4ee5\u5916\u306b\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u9078\u629e\u80a2\u304c\u306a\u3044\u5834\u5408\u306f\u3001\u304a\u4f7f\u3044\u306eOS\u306b\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u308bVPN\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3092\u4f7f\u7528\u3057\u3066PPTP\u3092\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002\u624b\u9806\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u306a\u304a\u3001VPN\u306f\u5b89\u5168\u306a\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u8a2d\u5b9a\u3059\u308b\u306e\u304c\u6700\u5584\u3067\u3059\u3002<\/strong>\u4f8b\u3048\u3070\u3001\u81ea\u5b85\u3084\u793e\u5185\u306eWi-Fi\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u7406\u60f3\u7684\u3067\u3059\u3002PPTP\u306e\u6697\u53f7\u5316\u306f\u8106\u5f31\u3067\u3042\u308b\u305f\u3081\u3001\u516c\u5171\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306f\u7c21\u5358\u306b\u508d\u53d7\u3055\u308c\u3066\u3057\u307e\u3046\u5371\u967a\u6027\u304c\u3042\u308a\u3001\u3042\u306a\u305f\u306e\u901a\u4fe1\u5185\u5bb9\u304c\u30b5\u30a4\u30d0\u30fc\u72af\u7f6a\u8005\u306b\u76d7\u8074\u3055\u308c\u308b\u6050\u308c\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-1-vpn\u306e\u8a2d\u5b9a\u306b\u5fc5\u8981\u306a\u60c5\u5831\u3092\u63c3\u3048\u308b\">1. VPN\u306e\u8a2d\u5b9a\u306b\u5fc5\u8981\u306a\u60c5\u5831\u3092\u63c3\u3048\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b5\u30fc\u30d0\u30fc\u30a2\u30c9\u30ec\u30b9\uff08\u30db\u30b9\u30c8\u540d\u307e\u305f\u306fIP\u30a2\u30c9\u30ec\u30b9\uff09\u3001\u30e6\u30fc\u30b6\u30fc\u540d\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u3001\u304a\u3088\u3073\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30c9\u30e1\u30a4\u30f3\u540d\u3092\u53d6\u5f97\u3057\u307e\u3059\u3002\u30c9\u30e1\u30a4\u30f3\u540d\u306f\u3001\u30a2\u30ab\u30a6\u30f3\u30c8\u306b\u95a2\u9023\u4ed8\u3051\u3089\u308c\u305f\u30ed\u30b0\u30a4\u30f3\u60c5\u5831\u3092\u8b58\u5225\u3059\u308b\u305f\u3081\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u9805\u76ee\u3067\u3059\uff08\u901a\u5e38\u306f\u4f01\u696d\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u4f7f\u7528\u3055\u308c\u307e\u3059\uff09\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">PPTP VPN\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u767b\u9332\u3059\u308b\u5834\u5408\u306f\u3001<a href=\"https:\/\/www.privateinternetaccess.com\/blog\/create-strong-password\/\">\u5f37\u56fa\u3067\u30e6\u30cb\u30fc\u30af\u306a\u30d1\u30b9\u30ef\u30fc\u30c9<\/a>\uff08\u82f1\u5b57\u3001\u6570\u5b57\u3001\u8a18\u53f7\u3092\u542b\u3080\uff09\u3092\u8a2d\u5b9a\u3059\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-2-\u30c7\u30d0\u30a4\u30b9\u5185\u8535\u306evpn\u8a2d\u5b9a\u3092\u958b\u304f\">2. \u30c7\u30d0\u30a4\u30b9\u5185\u8535\u306eVPN\u8a2d\u5b9a\u3092\u958b\u304f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uff08\u304a\u4f7f\u3044\u306eOS\u306b\u5185\u8535\u3055\u308c\u3066\u3044\u308b\u5834\u5408\uff09\u304a\u4f7f\u3044\u306eOS\u306b\u6a19\u6e96\u642d\u8f09\u3055\u308c\u3066\u3044\u308bVPN\u8a2d\u5b9a\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" style=\"margin-bottom: 15px; margin-top: 5px; border: 1px solid #aaa;\" src=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/pptp-vpn-adding-1024x576.png\" alt=\"Windows 11\u306e\u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u300d\u8a2d\u5b9a\u306b\u3042\u308b\u300cVPN\u300d\u30bf\u30d6\u3002\" class=\"wp-image-34821\" srcset=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/pptp-vpn-adding-1024x576.png 1024w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/pptp-vpn-adding-300x169.png 300w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/pptp-vpn-adding-768x432.png 768w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/pptp-vpn-adding-1536x864.png 1536w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/pptp-vpn-adding-1200x675.png 1200w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/pptp-vpn-adding.png 1920w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Windows\uff1a<\/strong><em>\u8a2d\u5b9a<\/em> &gt; <em>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8<\/em> &gt; <em>VPN<\/em> &gt; <em>VPN\u3092\u8ffd\u52a0<\/em> &gt; <em>PPTP<\/em>\u3002<\/li>\n\n\n\n<li><strong>macOS\uff1a<\/strong><em>\u30b7\u30b9\u30c6\u30e0\u74b0\u5883\u8a2d\u5b9a<\/em> &gt; <em>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af<\/em> &gt; <em>\u30b5\u30fc\u30d3\u30b9<\/em>\uff08<em>\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\uff09\u3092\u8ffd\u52a0<\/em> &gt; <em>VPN<\/em> &gt; <em>PPTP<\/em>\uff08macOS 10.12\u4ee5\u964d\u3067\u306f\u5229\u7528\u4e0d\u53ef\uff09\u3002<\/li>\n\n\n\n<li><strong>Android\uff1a<\/strong><em>\u8a2d\u5b9a<\/em> &gt; <em>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8<\/em> &gt; <em>VPN<\/em> &gt; <em>VPN\u3092\u8ffd\u52a0<\/em> &gt; <em>PPTP<\/em>\u3002<\/li>\n\n\n\n<li><strong>iOS\uff1a<\/strong><em>\u4e00\u822c<\/em> &gt; <em>VPN<\/em> &gt; <em>VPN\u69cb\u6210\u3092\u8ffd\u52a0<\/em> &gt; <em>PPTP<\/em>\uff08iOS 10\u4ee5\u964d\u3067\u306f\u5229\u7528\u4e0d\u53ef\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-3-pptp-vpn\u306e\u63a5\u7d9a\u60c5\u5831\u3092\u5165\u529b\">3. PPTP VPN\u306e\u63a5\u7d9a\u60c5\u5831\u3092\u5165\u529b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u304a\u4f7f\u3044\u306e\u30c7\u30d0\u30a4\u30b9\u3067\u8a8d\u8a3c\u60c5\u5831\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u00a0<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" style=\"margin-bottom: 15px; margin-top: 5px; border: 1px solid #aaa;\" src=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/pptp-credentials-1024x576.png\" alt=\"Windows 11\u306e\u300cVPN\u63a5\u7d9a\u306e\u8ffd\u52a0\u300d\u30a6\u30a3\u30f3\u30c9\u30a6\u3067\u3001PPTP\uff08Point-to-Point Tunneling Protocol\uff09\u300d\u3092\u8a2d\u5b9a\u3059\u308b\u753b\u9762\" class=\"wp-image-34822\" srcset=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/pptp-credentials-1024x576.png 1024w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/pptp-credentials-300x169.png 300w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/pptp-credentials-768x432.png 768w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/pptp-credentials-1536x864.png 1536w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/pptp-credentials-1200x675.png 1200w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/pptp-credentials.png 1920w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u63a5\u7d9a\u540d\uff1a<\/strong>\u4efb\u610f\u306e\u540d\u524d\u3092\u4ed8\u3051\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n\n\n\n<li><strong>\u30b5\u30fc\u30d0\u30fc\u540d\u307e\u305f\u306f\u30a2\u30c9\u30ec\u30b9\uff1a<\/strong>\u3053\u308c\u306f\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\u307e\u305f\u306f\u7ba1\u7406\u8005\u304b\u3089\u63d0\u4f9b\u3055\u308c\u305fVPN\u30b5\u30fc\u30d0\u30fc\u306e\u30a2\u30c9\u30ec\u30b9\u3067\u3059\u3002<\/li>\n\n\n\n<li><strong>VPN\u306e\u7a2e\u985e\uff1a<\/strong><em>PPTP\uff08Point-to-Point Tunneling Protocol\uff09<\/em>\u3092\u9078\u629e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n\n\n\n<li><strong>\u30e6\u30fc\u30b6\u30fc\u540d\u3068\u30d1\u30b9\u30ef\u30fc\u30c9\uff1a<\/strong> \u30b9\u30c6\u30c3\u30d71\u3067\u53d6\u5f97\u3057\u305f\u30e6\u30fc\u30b6\u30fc\u540d\u3068\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u5165\u529b\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-4-\u60c5\u5831\u3092\u4fdd\u5b58\u3057\u3066\u63a5\u7d9a\">4. \u60c5\u5831\u3092\u4fdd\u5b58\u3057\u3066\u63a5\u7d9a<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8a2d\u5b9a\u3092\u4fdd\u5b58\u3057\u305f\u3089\u4f5c\u6210\u3057\u305fVPN\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3092\u9078\u629e\u3057\u3066\u3001\u300c\u63a5\u7d9a\u300d\u3092\u30af\u30ea\u30c3\u30af\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" style=\"margin-bottom: 15px; margin-top: 5px; border: 1px solid #aaa;\" src=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/setup-pptp-vpn-1024x576.png\" alt=\"Windows 11\u306e\u8a2d\u5b9a\u306b\u3042\u308b\u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u300d\u306e\u4e0b\u306e\u300cVPN\u300d\u63a5\u7d9a\u753b\u9762\u3002\u30cf\u30a4\u30e9\u30a4\u30c8\u3055\u308c\u305f\u9805\u76ee\u304c\u3001\u63a5\u7d9a\u30dc\u30bf\u30f3\u4ed8\u304d\u306ePPTP VPN\u30d7\u30ed\u30d5\u30a1\u30a4\u30eb\u3067\u3059\u3002\" class=\"wp-image-34818\" srcset=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/setup-pptp-vpn-1024x576.png 1024w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/setup-pptp-vpn-300x169.png 300w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/setup-pptp-vpn-768x432.png 768w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/setup-pptp-vpn-1536x864.png 1536w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/setup-pptp-vpn-1200x675.png 1200w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/setup-pptp-vpn.png 1920w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">PPTP VPN\u306e\u4f7f\u7528\u306f\u5fc5\u8981\u306a\u3068\u304d\u306e\u307f\u4f7f\u7528\u3057\u3066\u3001\u305d\u308c\u4ee5\u5916\u3067\u306f\u63a5\u7d9a\u3092\u89e3\u9664\u3057\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u306f\u5b9a\u671f\u7684\u306b\u5909\u66f4\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-5-\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u8a73\u7d30\u8a2d\u5b9a-\u4efb\u610f\">5. \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u8a73\u7d30\u8a2d\u5b9a\uff08\u4efb\u610f\uff09<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">PPTP\u63a5\u7d9a\u306e\u8a2d\u5b9a\u8a73\u7d30\u3092\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u8abf\u6574\u3067\u304d\u307e\u3059\u3002\u8a8d\u8a3c\u65b9\u5f0f\u306f\u300cMS-CHAPv2\u300d\u306b\u8a2d\u5b9a\u3057\u3066\u3001\u6697\u53f7\u5316\u3092\u6709\u52b9\u306b\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002\u00a0<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" style=\"margin-bottom: 15px; margin-top: 5px; border: 1px solid #aaa;\" src=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/security-pptp-settings-1024x576.png\" alt=\"Windows 11\u306ePPTP VPN\u63a5\u7d9a\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u30a6\u30a3\u30f3\u30c9\u30a6\u3002\u5fc5\u9808\u306e\u6697\u53f7\u5316\u3084MS-CHAP v2\u8a8d\u8a3c\u3092\u542b\u3080\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8a2d\u5b9a\u306e\u753b\u9762\u3002\" class=\"wp-image-34819\" srcset=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/security-pptp-settings-1024x576.png 1024w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/security-pptp-settings-300x169.png 300w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/security-pptp-settings-768x432.png 768w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/security-pptp-settings-1536x864.png 1536w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/security-pptp-settings-1200x675.png 1200w, https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/security-pptp-settings.png 1920w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Windows\uff1a<\/strong><em>\u8a2d\u5b9a &gt; \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 &gt; VPN &gt; [PPTP\u63a5\u7d9a] &gt; \u8a73\u7d30\u30aa\u30d7\u30b7\u30e7\u30f3 &gt; \u7de8\u96c6 &gt; [\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3] \u30bf\u30d6<\/em><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8a8d\u8a3c\u65b9\u5f0f\uff1a\u300cMicrosoft CHAP Version 2\uff08MS-CHAP v2\uff09\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u6697\u53f7\u5316\uff1a\u300c\u6697\u53f7\u5316\u3092\u5fc5\u9808\u306b\u3059\u308b\uff08\u30b5\u30fc\u30d0\u30fc\u304c\u62d2\u5426\u3059\u308b\u5834\u5408\u306f\u5207\u65ad\u3057\u307e\u3059\uff09\u300d\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002<br><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>macOS\uff1a<\/strong><em>\u30b7\u30b9\u30c6\u30e0\u74b0\u5883\u8a2d\u5b9a &gt; \u30cd\u30c3\u30c8\u30ef\u30fc\u30af &gt; [PPTP\u63a5\u7d9a] &gt; \u8a8d\u8a3c\u8a2d\u5b9a<\/em><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8a8d\u8a3c\u65b9\u5f0f\uff1a\u300cMS-CHAPv2\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u6697\u53f7\u5316\uff1a\u300c\u3059\u3079\u3066\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092VPN\u63a5\u7d9a\u7d4c\u7531\u3067\u9001\u4fe1\u300d\u306b\u30c1\u30a7\u30c3\u30af\u3092\u5165\u308c\u307e\u3059\uff08\u6697\u53f7\u5316\u3092\u5f37\u5236\u3059\u308b\u305f\u3081\uff09\u3002<br><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Android\uff1a<\/strong><em>\u8a2d\u5b9a &gt; \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 &gt; VPN &gt; [PPTP VPN] &gt; \u7de8\u96c6<\/em><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30e6\u30fc\u30b6\u30fc\u540d\u3068\u30d1\u30b9\u30ef\u30fc\u30c9\uff1a\u8a8d\u8a3c\u60c5\u5831\u3092\u5165\u529b\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u6697\u53f7\u5316\uff1aAndroid\u306e\u5834\u5408\u3001PPTP\u3067\u306f\u81ea\u52d5\u7684\u306bMPPE\u6697\u53f7\u5316\u304c\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u8a8d\u8a3c\u65b9\u5f0f\uff1a\u307b\u3068\u3093\u3069\u306eAndroid\u30c7\u30d0\u30a4\u30b9\u3067\u306f\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067MS-CHAPv2\u304c\u4f7f\u7528\u3055\u308c\u307e\u3059\uff08\u624b\u52d5\u3067\u306e\u5207\u308a\u66ff\u3048\u306f\u4e0d\u53ef\uff09\u3002<br><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>iOS\uff1a<\/strong> <em>\u8a2d\u5b9a &gt; \u4e00\u822c &gt; VPN &gt; [PPTP\u63a5\u7d9a] &gt; \u69cb\u6210\u3092\u7de8\u96c6<\/em><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8a8d\u8a3c\u65b9\u5f0f\uff1a\u300c\u30d1\u30b9\u30ef\u30fc\u30c9\u300d\u3092\u9078\u629e\u3057\u307e\u3059\uff08iOS\u306f\u5185\u90e8\u7684\u306b\u306fMS-CHAPv2\u3092\u4f7f\u7528\u3057\u307e\u3059\uff09\u3002<\/li>\n\n\n\n<li>\u6697\u53f7\u5316\uff1aMPPE\u304c\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-\u3088\u304f\u3042\u308b\u3054\u8cea\u554f\">\u3088\u304f\u3042\u308b\u3054\u8cea\u554f<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1768384604652\"><h3 class=\"schema-faq-question\">PPTP VPN\u3068\u306f\uff1f\u3069\u306e\u3088\u3046\u306a\u4ed5\u7d44\u307f\u3067\u3059\u304b\uff1f<\/h3> <p class=\"schema-faq-answer\"><a href=\"#wia\">PPTP\u3068\u306f\u53e4\u3044VPN\u30d7\u30ed\u30c8\u30b3\u30eb<\/a>\u3067\u3042\u308a\u3001PPP\uff08Point-to-Point Protocol\uff09\u3068GRE\uff08Generic Routing Encapsulation\uff09\u3092\u4f7f\u7528\u3057\u3066\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u901a\u4fe1\u3092\u30ab\u30d7\u30bb\u30eb\u5316\u3057\u3001RC4\u6697\u53f7\u5316\u3092\u7528\u3044\u305fMPPEE\uff08Microsoft Point-to-Point Encryption\uff09\u3067\u6697\u53f7\u5316\u3059\u308b\u3053\u3068\u3067\u63a5\u7d9a\u3092\u78ba\u7acb\u3057\u307e\u3059\u3002\u63a5\u7d9a\u5236\u5fa1\u306b\u306fTCP\u30dd\u30fc\u30c81723\u756a\u3001\u30c7\u30fc\u30bf\u8ee2\u9001\u306b\u306fGRE\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u30b7\u30f3\u30d7\u30eb\u3067\u6bd4\u8f03\u7684\u9ad8\u901f\u3067\u3059\u304c\u3001\u4eca\u65e5\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u57fa\u6e96\u3067\u306f\u6642\u4ee3\u9045\u308c\u3068\u898b\u306a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<br><br><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768384616217\"><h3 class=\"schema-faq-question\">PPTP VPN\u306f\u4eca\u3067\u3082\u5b89\u5168\u306b\u4f7f\u3048\u307e\u3059\u304b\uff1f<\/h3> <p class=\"schema-faq-answer\">\u6b8b\u5ff5\u306a\u304c\u3089\u3001<a href=\"#pc\">PPTP\u306b\u306f\u591a\u304f\u306e\u30c7\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308a<\/a>\u3001\u4eca\u65e5\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u57fa\u6e96\u3067\u306f\u5b89\u5168\u3068\u306f\u8a00\u3048\u307e\u305b\u3093\u3002\u4f8b\u3048\u3070\u3001\u30ed\u30b0\u30a4\u30f3\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3068\u3057\u3066RC4\u6697\u53f7\u5316\u3068MS-CHAPv2\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u3053\u308c\u3089\u306f\u30d6\u30eb\u30fc\u30c8\u30d5\u30a9\u30fc\u30b9\u653b\u6483\uff08\u8a66\u884c\u932f\u8aa4\u306b\u3088\u308b\u63a8\u6e2c\uff09\u306b\u5bfe\u3057\u3066\u8106\u5f31\u3067\u3042\u308a\u3001\u30c7\u30fc\u30bf\u3092\u5fa9\u53f7\u5316\u3055\u308c\u308b\u6050\u308c\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001PPTP\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u30bb\u30c3\u30b7\u30e7\u30f3\u3054\u3068\u306b\u6697\u53f7\u5316\u30ad\u30fc\u3092\u66f4\u65b0\u3057\u306a\u3044\u305f\u3081\u3001\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u3067\u4e00\u5ea6\u89e3\u8aad\u3055\u308c\u3066\u3057\u307e\u3046\u3068\u3001VPN\u7d4c\u7531\u3067\u9001\u4fe1\u3055\u308c\u305f\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u53d6\u3089\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<br><br><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768384624204\"><h3 class=\"schema-faq-question\">PPTP VPN\u30b5\u30fc\u30d0\u30fc\u306e\u8a2d\u5b9a\u65b9\u6cd5\u306f\uff1f<\/h3> <p class=\"schema-faq-answer\"><a href=\"#hts\">PPTP VPN\u30b5\u30fc\u30d0\u30fc\u3092\u8a2d\u5b9a\u3059\u308b\u306b\u306f<\/a>\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u307e\u305f\u306f\u5171\u6709\u8a2d\u5b9a\u3092\u958b\u304d\u3001\u53d7\u4fe1\u63a5\u7d9a\u3092\u6709\u52b9\u306b\u3057\u3066\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u7a2e\u985e\u306f\u300cPPTP\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002\u6b21\u306b\u3001\u30e6\u30fc\u30b6\u30fc\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u4f5c\u6210\u3057\u3066VPN\u30a2\u30af\u30bb\u30b9\u3092\u8a31\u53ef\u3057\u307e\u3059\u3002\u30eb\u30fc\u30bf\u30fc\u3067TCP\u30dd\u30fc\u30c81723\u756a\u3092\u8ee2\u9001\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066PPTP\u30d1\u30b9\u30b9\u30eb\u30fc\u3092\u6709\u52b9\u306b\u3057\u307e\u3059\u3002<br><br><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768384633049\"><h3 class=\"schema-faq-question\">Mac\u7aef\u672b\u3067\u3082PPTP VPN\u306f\u4f7f\u3048\u307e\u3059\u304b\uff1f<\/h3> <p class=\"schema-faq-answer\">\u306f\u3044\u3001macOS 10.11\uff08El Capitan\uff09\u4ee5\u524d\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306eMac\u7aef\u672b\u3067\u3042\u308c\u3070\u3001<a href=\"#hts\">PPTP VPN\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059<\/a>\u3002\u4f46\u3057\u3001Apple\u306fmacOS 10.12\uff08Sierra\uff09\u4ee5\u964d\u3067\u306ePPTP\u306e\u30b5\u30dd\u30fc\u30c8\u306f\u7d42\u4e86\u3057\u3066\u3044\u307e\u3059\u3002<br><br><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768384643790\"><h3 class=\"schema-faq-question\">PPTP\u3068\u306f\uff1f<\/h3> <p class=\"schema-faq-answer\">PPTP\uff08Point-to-Point Tunneling Protocol\uff09\u3068\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u7d4c\u7531\u30672\u70b9\u9593\uff08\u30c7\u30d0\u30a4\u30b9\u9593\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9593\uff09\u306b\u6697\u53f7\u5316\u3055\u308c\u305f\u30c8\u30f3\u30cd\u30eb\u3092\u69cb\u7bc9\u3059\u308bVPN\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u3042\u305f\u304b\u30822\u70b9\u9593\u304c\u540c\u3058\u30ed\u30fc\u30ab\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u304b\u306e\u3088\u3046\u306b\u5b89\u5168\u306a\u30c7\u30fc\u30bf\u8ee2\u9001\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002PPTP\u306f\u3001<a href=\"#pvo\">\u57fa\u672c\u7684\u306a\u6697\u53f7\u5316<\/a>\u3068\u8a8d\u8a3c\u65b9\u5f0f\u3092\u5229\u7528\u3057\u3066\u304a\u308a\u3001\u30c7\u30d0\u30a4\u30b9\u3068VPN\u30b5\u30fc\u30d0\u30fc\u306e\u9593\u306b\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u306a\u30c8\u30f3\u30cd\u30eb\u3092\u69cb\u7bc9\u3057\u307e\u3059\u3002<br><br><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768384651928\"><h3 class=\"schema-faq-question\">PPTP\u63a5\u7d9a\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5\u306f\uff1f<\/h3> <p class=\"schema-faq-answer\">Windows\u3001macOS\u3001Android\u3001iOS\u306a\u3069\u3001\u304a\u4f7f\u3044\u306eOS\u306b\u3088\u3063\u3066\u624b\u9806\u304c\u7570\u306a\u308a\u307e\u3059\u3002\u4e0a\u8a18\u306e<a href=\"#hts\">PPTP VPN\u306e\u8a2d\u5b9a\u65b9\u6cd5<\/a>\u3092\u3054\u53c2\u8003\u304f\u3060\u3055\u3044\u3002<br><br><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768384663746\"><h3 class=\"schema-faq-question\">PPTP\u3068\u4ed6\u306eVPN\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3> <p class=\"schema-faq-answer\">PPTP\u306f\u65e7\u5f0f\u306e\u6697\u53f7\u5316\uff08RC4\uff09\u3092\u4f7f\u7528\u3057\u3066\u304a\u308aGRE\u306b\u4f9d\u5b58\u3057\u3066\u3044\u308b\u305f\u3081\u3001NAT\u30eb\u30fc\u30bf\u30fc\u3084\u5236\u9650\u306e\u53b3\u3057\u3044\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3067\u306f\u6b63\u5e38\u306b\u52d5\u4f5c\u3057\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001<a href=\"#pvo\">\u4ed6\u306e\u6700\u65b0\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u306f\u7570\u306a\u308a<\/a>\u3001TLS\u30d9\u30fc\u30b9\u306e\u8a3c\u660e\u66f8\u3084\u6700\u65b0\u306e\u9375\u4ea4\u63db\u30e1\u30ab\u30cb\u30ba\u30e0\u3092\u63a1\u7528\u3057\u3066\u3044\u307e\u305b\u3093\u3002\u4e00\u65b9\u3067\u3001WireGuard\u3084OpenVPN\u306a\u3069\u306e\u65b0\u3057\u3044\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u3088\u308a\u5b89\u5168\u306a\u6697\u53f7\u5316\u3084PFS\uff08\u5b8c\u5168\u524d\u65b9\u79d8\u533f\u6027\uff09\u3092\u63a1\u7528\u3057\u3066\u304a\u308a\u3001\u30d1\u30b9\u30b9\u30eb\u30fc\u8a2d\u5b9a\u304c\u4e0d\u8981\u3067\u3001\u8907\u96d1\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u74b0\u5883\u3067\u3082\u30b9\u30e0\u30fc\u30ba\u306b\u63a5\u7d9a\u3067\u304d\u307e\u3059\u3002<br><br><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768384672511\"><h3 class=\"schema-faq-question\">PPTP\u304c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u7684\u306b\u300c\u6642\u4ee3\u9045\u308c\u300d\u3060\u3068\u8a00\u308f\u308c\u3066\u3044\u308b\u7406\u7531\u306f\uff1f<\/h3> <p class=\"schema-faq-answer\">PPTP\u304c\u6642\u4ee3\u9045\u308c\u3068\u898b\u306a\u3055\u308c\u308b\u7406\u7531\u306f\u3001<a href=\"#pc\">\u8106\u5f31\u306a\u6697\u53f7\u5316\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u5f31\u70b9\u304c\u3042\u308b\u8a8d\u8a3c\u65b9\u5f0f\u306b\u4f9d\u5b58\u3057\u3066\u3044\u308b<\/a>\u305f\u3081\u3067\u3059\u3002\u3064\u307e\u308a\u3001\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u306b\u3088\u3063\u3066\u6bd4\u8f03\u7684\u7c21\u5358\u306b\u6697\u53f7\u5316\u304c\u7834\u3089\u308c\u308b\u6050\u308c\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001PFS\uff08\u5b8c\u5168\u524d\u65b9\u79d8\u533f\u6027\uff09\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u306a\u3044\u305f\u3081\u30011\u3064\u306e\u30bb\u30c3\u30b7\u30e7\u30f3\u304c\u4fb5\u5bb3\u3055\u308c\u305f\u5834\u5408\u3001\u540c\u3058\u9375\u3092\u4f7f\u7528\u3057\u305f\u904e\u53bb\u304a\u3088\u3073\u5c06\u6765\u306e\u30c7\u30fc\u30bf\u3082\u6f0f\u6d29\u3059\u308b\u6050\u308c\u304c\u3042\u308a\u307e\u3059\u3002\u73fe\u4ee3\u306e\u6700\u65b0VPN\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u65b9\u304c\u3001\u306f\u308b\u304b\u306b\u5f37\u529b\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u63d0\u4f9b\u3057\u3066\u3044\u307e\u3059\u3002<br><br><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768384680523\"><h3 class=\"schema-faq-question\">PPTP VPN\u306f\u3001\u30b5\u30a4\u30c8\u9593\uff08\u62e0\u70b9\u9593\uff09\u306e\u63a5\u7d9a\u306b\u4f7f\u3048\u307e\u3059\u304b\uff1f<\/h3> <p class=\"schema-faq-answer\">\u306f\u3044\u3001PPTP\u306e\u3088\u3046\u306a\u30dd\u30a4\u30f3\u30c8\u30c4\u30fc\u30dd\u30a4\u30f3\u30c8VPN\u3092\u30b5\u30a4\u30c8\u9593\u63a5\u7d9a\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u306f\u6280\u8853\u7684\u306b\u306f\u53ef\u80fd\u3067\u3059\u3002\u3057\u304b\u3057\u3001<a href=\"#pc\">PPTP\u306b\u306f\u5f37\u529b\u306a\u6697\u53f7\u5316\u3084\u6700\u65b0\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u6a5f\u80fd\u304c\u6b20\u3051\u3066\u304a\u308a<\/a>\u3001\u6a5f\u5bc6\u6027\u306e\u9ad8\u3044\u793e\u5185\u30c7\u30fc\u30bf\u3092\u4fdd\u8b77\u3059\u308b\u306b\u306f\u9069\u3057\u3066\u3044\u307e\u305b\u3093\u3002\u307e\u305f\u3001NAT\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u5909\u63db\uff09\u74b0\u5883\u306b\u304a\u3044\u3066\u554f\u984c\u304c\u3042\u308a\u3001\u6700\u65b0\u306e\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u30eb\u30fc\u30eb\u4e0b\u3067\u306f\u63a5\u7d9a\u304c\u5207\u65ad\u3055\u308c\u3084\u3059\u3044\u50be\u5411\u304c\u3042\u308a\u307e\u3059\u3002PPTP\u3067\u306f\u306a\u304f\u3001IPSec\u3001OpenVPN\u3001\u307e\u305f\u306fWireGuard\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3092\u304a\u52e7\u3081\u3057\u307e\u3059\u3002<br><br><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768384688209\"><h3 class=\"schema-faq-question\">PPTP\u30d1\u30b9\u30b9\u30eb\u30fc\u3068\u306f\uff1f<\/h3> <p class=\"schema-faq-answer\">\u300cPPTP\u30d1\u30b9\u30b9\u30eb\u30fc\u300d\u3068\u306f\u3001TCP\u30dd\u30fc\u30c81723\u756a\u304a\u3088\u3073GRE\u30d7\u30ed\u30c8\u30b3\u30eb47\u756a\u3092\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7d4c\u7531\u3067\u901a\u904e\u3055\u305b\u308b\u30eb\u30fc\u30bf\u30fc\u306e\u8a2d\u5b9a\u3067\u3059\u3002\u30d1\u30b9\u30b9\u30eb\u30fc\u304c\u306a\u3044\u3068\u3001\u307b\u3068\u3093\u3069\u306e\u30eb\u30fc\u30bf\u30fc\u3084\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3067PPTP\u304c\u6b63\u5e38\u306b\u63a5\u7d9a\u3067\u304d\u307e\u305b\u3093\u3002<br><br><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1768384696332\"><h3 class=\"schema-faq-question\">\u73fe\u4ee3\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u304a\u3044\u3066\u3001PPTP\u306b\u306f\u307e\u3060\u6d3b\u7528\u306e\u4f59\u5730\u304c\u3042\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/h3> <p class=\"schema-faq-answer\"><a href=\"#wsy\">\u3054\u304f\u7a00\u306a\u30b1\u30fc\u30b9\u306b\u9650\u3089\u308c\u307e\u3059<\/a>\u3002\u30ec\u30ac\u30b7\u30fc\u30b7\u30b9\u30c6\u30e0\u306e\u30c6\u30b9\u30c8\u3001\u7c21\u6613\u306a\u30b2\u30b9\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u69cb\u7bc9\u3001\u3042\u308b\u3044\u306f\u6a5f\u5bc6\u6027\u306e\u306a\u3044\u30bb\u30f3\u30b5\u30fc\u30c7\u30fc\u30bf\u306e\u53ce\u96c6\u306b\u306f\u3001\u4eca\u3067\u3082PPTP\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4fdd\u8b77\u304c\u6c42\u3081\u3089\u308c\u308b\u30b7\u30b9\u30c6\u30e0\u304b\u3089\u306f\u5e38\u306b\u9694\u96e2\u3057\u3001\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u3001\u8a8d\u8a3c\u60c5\u5831\u3001\u307e\u305f\u306f\u30c7\u30fc\u30bf\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u78ba\u4fdd\u3059\u3079\u304d\u30b1\u30fc\u30b9\u3067\u306f\u4f7f\u7528\u3092\u907f\u3051\u308b\u3079\u304d\u3067\u3059\u3002<\/p> <\/div> <\/div>\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>PPTP\uff08Point-to-Point Tunneling Protocol\uff09\u306f\u3001\u4eca\u3067\u3082\u4f7f\u308f\u308c\u3066\u3044\u308b\u6700\u3082\u53e4\u3044VPN\u30d7\u30ed\u30c8\u30b3\u30eb\u306e1\u3064\u3067\u3059\u3002\u4e00\u90e8\u306e\u53e4\u3044\u6a5f\u7a2e\u3084Windows 10\u300111\u3067\u306fPPTP VPN\u3092\u73fe\u5728\u3082\u6709\u52b9\u306b\u3067\u304d\u307e\u3059 &hellip; <a href=\"https:\/\/www.privateinternetaccess.com\/ja\/blog\/pptp-vpn\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;PPTP VPN\u3068\u306f\uff1fPPTP\uff08Point-to-Point Tunneling Protocol\uff09\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac&#8221;<\/span><\/a><\/p>\n","protected":false},"author":144,"featured_media":38026,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_stopmodifiedupdate":false,"_modified_date":"","footnotes":""},"categories":[3065],"tags":[],"class_list":["post-38027","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-3065"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.9 (Yoast SEO v26.9) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>PPTP\u3068\u306f\uff1fPPTP VPN\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac<\/title>\n<meta name=\"description\" content=\"PPTP\u3068\u306f\uff1fPPTP VPN\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u9762\u306b\u304a\u3051\u308b\u30c7\u30e1\u30ea\u30c3\u30c8\u3001PPTP\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u4eca\u3067\u3082\u4f7f\u3048\u308b\u306e\u304b\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002\" \/>\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.privateinternetaccess.com\/ja\/blog\/pptp-vpn\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PPTP VPN\u3068\u306f\uff1fPPTP\uff08Point-to-Point Tunneling Protocol\uff09\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\" \/>\n<meta property=\"og:description\" content=\"PPTP\u3068\u306f\uff1fPPTP VPN\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u9762\u306b\u304a\u3051\u308b\u30c7\u30e1\u30ea\u30c3\u30c8\u3001PPTP\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u4eca\u3067\u3082\u4f7f\u3048\u308b\u306e\u304b\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.privateinternetaccess.com\/ja\/blog\/pptp-vpn\/\" \/>\n<meta property=\"og:site_name\" content=\"PIA\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/privateinternetaccess\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-01-14T10:07:07+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-15T13:34:16+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.privateinternetaccess.com\/blog\/wp-content\/uploads\/2026\/01\/featured-image-PPTP-VPN.png\" \/>\n\t<meta property=\"og:image:width\" content=\"2400\" \/>\n\t<meta property=\"og:image:height\" content=\"1600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Georgii Chanturidze\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@buyvpnservice\" \/>\n<meta name=\"twitter:site\" content=\"@buyvpnservice\" \/>\n<meta name=\"twitter:label1\" content=\"\u57f7\u7b46\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u30b2\u30aa\u30eb\u30ae\u30fc\u30fb\u30c1\u30e3\u30f3\u30c8\u30a5\u30ea\u30bc\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u63a8\u5b9a\u8aad\u307f\u53d6\u308a\u6642\u9593\" \/>\n\t<meta name=\"twitter:data2\" content=\"3\u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.privateinternetaccess.com\/ja\/blog\/pptp-vpn\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.privateinternetaccess.com\/ja\/blog\/pptp-vpn\/\"},\"author\":{\"name\":\"Georgii 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Before joining PIA, he worked for numerous global IT companies and spent eight years practicing criminal law, honing his analytical and argumentative skills. When not working, Georgii enjoys highbrow cinema, plays indie video games, practices drawing, and talks to his dog (named after a character from a Japanese cyberpunk film).\",\"url\":\"https:\/\/www.privateinternetaccess.com\/ja\/blog\/author\/georgiichanturidze\/\"},{\"@type\":\"Question\",\"@id\":\"https:\/\/www.privateinternetaccess.com\/ja\/blog\/pptp-vpn\/#faq-question-1768384604652\",\"position\":1,\"url\":\"https:\/\/www.privateinternetaccess.com\/ja\/blog\/pptp-vpn\/#faq-question-1768384604652\",\"name\":\"PPTP VPN\u3068\u306f\uff1f\u3069\u306e\u3088\u3046\u306a\u4ed5\u7d44\u307f\u3067\u3059\u304b\uff1f\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"<a href=\\\"#wia\\\">PPTP\u3068\u306f\u53e4\u3044VPN\u30d7\u30ed\u30c8\u30b3\u30eb<\/a>\u3067\u3042\u308a\u3001PPP\uff08Point-to-Point Protocol\uff09\u3068GRE\uff08Generic Routing 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href=\"#pc\">PPTP\u306b\u306f\u591a\u304f\u306e\u30c7\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308a<\/a>\u3001\u4eca\u65e5\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u57fa\u6e96\u3067\u306f\u5b89\u5168\u3068\u306f\u8a00\u3048\u307e\u305b\u3093\u3002\u4f8b\u3048\u3070\u3001\u30ed\u30b0\u30a4\u30f3\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3068\u3057\u3066RC4\u6697\u53f7\u5316\u3068MS-CHAPv2\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u3053\u308c\u3089\u306f\u30d6\u30eb\u30fc\u30c8\u30d5\u30a9\u30fc\u30b9\u653b\u6483\uff08\u8a66\u884c\u932f\u8aa4\u306b\u3088\u308b\u63a8\u6e2c\uff09\u306b\u5bfe\u3057\u3066\u8106\u5f31\u3067\u3042\u308a\u3001\u30c7\u30fc\u30bf\u3092\u5fa9\u53f7\u5316\u3055\u308c\u308b\u6050\u308c\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001PPTP\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u30bb\u30c3\u30b7\u30e7\u30f3\u3054\u3068\u306b\u6697\u53f7\u5316\u30ad\u30fc\u3092\u66f4\u65b0\u3057\u306a\u3044\u305f\u3081\u3001\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u3067\u4e00\u5ea6\u89e3\u8aad\u3055\u308c\u3066\u3057\u307e\u3046\u3068\u3001VPN\u7d4c\u7531\u3067\u9001\u4fe1\u3055\u308c\u305f\u3059\u3079\u3066\u306e\u30c7\u30fc\u30bf\u3092\u8aad\u307f\u53d6\u3089\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<br\/><br\/>","inLanguage":"ja"},"inLanguage":"ja"},{"@type":"Question","@id":"https:\/\/www.privateinternetaccess.com\/ja\/blog\/pptp-vpn\/#faq-question-1768384624204","position":3,"url":"https:\/\/www.privateinternetaccess.com\/ja\/blog\/pptp-vpn\/#faq-question-1768384624204","name":"PPTP VPN\u30b5\u30fc\u30d0\u30fc\u306e\u8a2d\u5b9a\u65b9\u6cd5\u306f\uff1f","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"<a href=\"#hts\">PPTP VPN\u30b5\u30fc\u30d0\u30fc\u3092\u8a2d\u5b9a\u3059\u308b\u306b\u306f<\/a>\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u307e\u305f\u306f\u5171\u6709\u8a2d\u5b9a\u3092\u958b\u304d\u3001\u53d7\u4fe1\u63a5\u7d9a\u3092\u6709\u52b9\u306b\u3057\u3066\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u7a2e\u985e\u306f\u300cPPTP\u300d\u3092\u9078\u629e\u3057\u307e\u3059\u3002\u6b21\u306b\u3001\u30e6\u30fc\u30b6\u30fc\u30a2\u30ab\u30a6\u30f3\u30c8\u3092\u4f5c\u6210\u3057\u3066VPN\u30a2\u30af\u30bb\u30b9\u3092\u8a31\u53ef\u3057\u307e\u3059\u3002\u30eb\u30fc\u30bf\u30fc\u3067TCP\u30dd\u30fc\u30c81723\u756a\u3092\u8ee2\u9001\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066PPTP\u30d1\u30b9\u30b9\u30eb\u30fc\u3092\u6709\u52b9\u306b\u3057\u307e\u3059\u3002<br\/><br\/>","inLanguage":"ja"},"inLanguage":"ja"},{"@type":"Question","@id":"https:\/\/www.privateinternetaccess.com\/ja\/blog\/pptp-vpn\/#faq-question-1768384633049","position":4,"url":"https:\/\/www.privateinternetaccess.com\/ja\/blog\/pptp-vpn\/#faq-question-1768384633049","name":"Mac\u7aef\u672b\u3067\u3082PPTP VPN\u306f\u4f7f\u3048\u307e\u3059\u304b\uff1f","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"\u306f\u3044\u3001macOS 10.11\uff08El Capitan\uff09\u4ee5\u524d\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u306eMac\u7aef\u672b\u3067\u3042\u308c\u3070\u3001<a href=\"#hts\">PPTP VPN\u3092\u4f7f\u7528\u3067\u304d\u307e\u3059<\/a>\u3002\u4f46\u3057\u3001Apple\u306fmacOS 10.12\uff08Sierra\uff09\u4ee5\u964d\u3067\u306ePPTP\u306e\u30b5\u30dd\u30fc\u30c8\u306f\u7d42\u4e86\u3057\u3066\u3044\u307e\u3059\u3002<br\/><br\/>","inLanguage":"ja"},"inLanguage":"ja"},{"@type":"Question","@id":"https:\/\/www.privateinternetaccess.com\/ja\/blog\/pptp-vpn\/#faq-question-1768384643790","position":5,"url":"https:\/\/www.privateinternetaccess.com\/ja\/blog\/pptp-vpn\/#faq-question-1768384643790","name":"PPTP\u3068\u306f\uff1f","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"PPTP\uff08Point-to-Point Tunneling Protocol\uff09\u3068\u306f\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u7d4c\u7531\u30672\u70b9\u9593\uff08\u30c7\u30d0\u30a4\u30b9\u9593\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9593\uff09\u306b\u6697\u53f7\u5316\u3055\u308c\u305f\u30c8\u30f3\u30cd\u30eb\u3092\u69cb\u7bc9\u3059\u308bVPN\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u3042\u305f\u304b\u30822\u70b9\u9593\u304c\u540c\u3058\u30ed\u30fc\u30ab\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u304b\u306e\u3088\u3046\u306b\u5b89\u5168\u306a\u30c7\u30fc\u30bf\u8ee2\u9001\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002PPTP\u306f\u3001<a 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VPN\u306e\u8a2d\u5b9a\u65b9\u6cd5<\/a>\u3092\u3054\u53c2\u8003\u304f\u3060\u3055\u3044\u3002<br\/><br\/>","inLanguage":"ja"},"inLanguage":"ja"},{"@type":"Question","@id":"https:\/\/www.privateinternetaccess.com\/ja\/blog\/pptp-vpn\/#faq-question-1768384663746","position":7,"url":"https:\/\/www.privateinternetaccess.com\/ja\/blog\/pptp-vpn\/#faq-question-1768384663746","name":"PPTP\u3068\u4ed6\u306eVPN\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"PPTP\u306f\u65e7\u5f0f\u306e\u6697\u53f7\u5316\uff08RC4\uff09\u3092\u4f7f\u7528\u3057\u3066\u304a\u308aGRE\u306b\u4f9d\u5b58\u3057\u3066\u3044\u308b\u305f\u3081\u3001NAT\u30eb\u30fc\u30bf\u30fc\u3084\u5236\u9650\u306e\u53b3\u3057\u3044\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3067\u306f\u6b63\u5e38\u306b\u52d5\u4f5c\u3057\u306a\u3044\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001<a 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