{"id":3810,"date":"2025-05-31T17:25:11","date_gmt":"2025-05-31T08:25:11","guid":{"rendered":"https:\/\/venu-sys.co.jp\/jo-sys\/?p=3810"},"modified":"2026-09-29T13:21:31","modified_gmt":"2026-09-29T04:21:31","slug":"%e3%83%88%e3%83%b3%e3%83%8d%e3%83%aa%e3%83%b3%e3%82%b0%e3%81%a8%e3%81%af%ef%bc%9f%e3%83%87%e3%83%bc%e3%82%bf%e9%80%9a%e4%bf%a1%e3%82%92%e5%ae%89%e5%85%a8%e3%81%ab%e8%a1%8c%e3%81%86%e3%81%9f%e3%82%81","status":"publish","type":"post","link":"https:\/\/venu-sys.co.jp\/jo-sys\/3810\/","title":{"rendered":"\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u3068\u306f\uff1f\u30c7\u30fc\u30bf\u901a\u4fe1\u3092\u5b89\u5168\u306b\u884c\u3046\u305f\u3081\u306e\u4ed5\u7d44\u307f\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac"},"content":{"rendered":"<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"blue\"><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p>\u793e\u5185\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089\u5b89\u5168\u306b\u30c7\u30fc\u30bf\u3092\u3084\u308a\u3068\u308a\u3057\u305f\u3044<\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"blue\"><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p>VPN\u3084\u30bb\u30ad\u30e5\u30a2\u306a\u901a\u4fe1\u306e\u4ed5\u7d44\u307f\u304c\u3088\u304f\u308f\u304b\u3089\u306a\u3044<\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"blue\"><div class=\"c-balloon__body -speaking -border-none\"><div class=\"c-balloon__text\">\n<p>\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u3063\u3066\u3069\u306e\u3088\u3046\u306a\u4ed5\u7d44\u307f\u306a\u306e\uff1f<\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<p>\u3053\u306e\u3088\u3046\u306a\u60a9\u307f\u3092\u62b1\u3048\u308b\u4eba\u3082\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002\u8fd1\u5e74\u3001\u30c6\u30ec\u30ef\u30fc\u30af\u3084\u30af\u30e9\u30a6\u30c9\u5229\u7528\u304c\u52a0\u901f\u3057\u3001\u5916\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u306e\u5b89\u5168\u306a\u901a\u4fe1\u304c\u4e0d\u53ef\u6b20\u3068\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u73fe\u5728\u3001\u591a\u62e0\u70b9\u3067\u306e\u904b\u55b6\u306b\u306f\u591a\u304f\u306e\u5834\u5408VPN\u304c\u4f7f\u7528\u3055\u308c\u3066\u304a\u308a\u3001<strong><span class=\"swl-marker mark_yellow\">\u30c7\u30fc\u30bf\u3092\u5b89\u5168\u306b\u3084\u308a\u53d6\u308a\u3059\u308b\u305f\u3081\u306e\u4ed5\u7d44\u307f\u306e\u3072\u3068\u3064\u304c\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0<\/span><\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001VPN\u3067\u5b89\u5168\u306a\u901a\u4fe1\u3092\u5b9f\u73fe\u3059\u308b\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u306e\u4ed5\u7d44\u307f\u3068\u7528\u9014\u306b\u3064\u3044\u3066\u3001\u521d\u5fc3\u8005\u306b\u3082\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-icon_announce\">\u8a18\u4e8b\u3092\u8aad\u3081\u3070\u3001\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u306b\u3064\u3044\u3066\u7406\u89e3\u304c\u6df1\u307e\u308a\u3001\u5b89\u5168\u306a\u901a\u4fe1\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306e\u77e5\u8b58\u3092\u8eab\u306b\u3064\u3051\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<section class=\"aio-article-points\" aria-label=\"\u3053\u306e\u8a18\u4e8b\u306e\u30dd\u30a4\u30f3\u30c8\" style=\"border:2px solid #2d4f8f;border-radius:8px;background:#f2f5fb;padding:14px 18px;margin:1.5em 0\"><p style=\"margin:0 0 8px;font-weight:700;color:#2d4f8f\">\u3053\u306e\u8a18\u4e8b\u306e\u30dd\u30a4\u30f3\u30c8<\/p><ul style=\"margin:0;padding-left:20px\"><li>\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u306f\u3001\u901a\u4fe1\u30c7\u30fc\u30bf\u3092\u5225\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u5305\u3093\u3067\u904b\u3076\u6280\u8853\u3067\u3059\u3002<\/li><li>IP\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u3067\u306f\u3001IP\u30d1\u30b1\u30c3\u30c8\u3092\u5225\u306eIP\u30d1\u30b1\u30c3\u30c8\u306b\u683c\u7d0d\u3057\u307e\u3059\u3002<\/li><li>\u5b89\u5168\u6027\u3092\u8003\u3048\u308b\u969b\u306f\u3001\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u3068\u6697\u53f7\u5316\u3092\u533a\u5225\u3057\u307e\u3059\u3002<\/li><\/ul><\/section>\n\n\n\n<h2 class=\"wp-block-heading\">\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u306f\u30c7\u30fc\u30bf\u3092\u5225\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u5305\u3093\u3067\u904b\u3076\u6280\u8853<\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/venu-sys.co.jp\/jo-sys\/wp-content\/uploads\/sites\/2\/2025\/05\/\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u306e\u4ed5\u7d44\u307f-1024x576.png\" alt=\"\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u306f\u30c7\u30fc\u30bf\u3092\u5225\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u5305\u3093\u3067\u904b\u3076\u6280\u8853\" class=\"wp-image-3930\" srcset=\"https:\/\/venu-sys.co.jp\/jo-sys\/wp-content\/uploads\/sites\/2\/2025\/05\/\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u306e\u4ed5\u7d44\u307f-1024x576.png 1024w, https:\/\/venu-sys.co.jp\/jo-sys\/wp-content\/uploads\/sites\/2\/2025\/05\/\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u306e\u4ed5\u7d44\u307f-300x169.png 300w, https:\/\/venu-sys.co.jp\/jo-sys\/wp-content\/uploads\/sites\/2\/2025\/05\/\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u306e\u4ed5\u7d44\u307f-768x432.png 768w, https:\/\/venu-sys.co.jp\/jo-sys\/wp-content\/uploads\/sites\/2\/2025\/05\/\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u306e\u4ed5\u7d44\u307f.png 1280w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u306f\u3001\u901a\u4fe1\u30c7\u30fc\u30bf\u3092\u5225\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u30ab\u30d7\u30bb\u30eb\u5316\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u901a\u3057\u3066\u904b\u3076\u6280\u8853\u3067\u3059\u3002\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u81ea\u4f53\u306b\u6697\u53f7\u5316\u306e\u52b9\u679c\u304c\u3042\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u3088\u3046\u306a\u516c\u5171\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u3067\u3001\u4f01\u696d\u306e\u6a5f\u5bc6\u60c5\u5831\u3084\u500b\u4eba\u60c5\u5831\u3092\u5b89\u5168\u306b\u3084\u308a\u53d6\u308a\u3059\u308b\u969b\u306b\u5229\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u76d7\u8074\u3084\u6539\u3056\u3093\u3078\u306e\u5bfe\u7b56\u306b\u306f\u3001IPsec\u306a\u3069\u306e\u6697\u53f7\u5316\u30fb\u8a8d\u8a3c\u306e\u4ed5\u7d44\u307f\u3092\u7d44\u307f\u5408\u308f\u305b\u307e\u3059\u3002\u30ab\u30d7\u30bb\u30eb\u5316\u3060\u3051\u3067\u901a\u4fe1\u306e\u6a5f\u5bc6\u6027\u304c\u4fdd\u8a3c\u3055\u308c\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u306b\u95a2\u3059\u308b\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n\n\n\n<div class=\"swell-block-faq\" data-q=\"fill-main\" data-a=\"col-text\">\n<div class=\"swell-block-faq__item\"><h3 class=\"faq_q\">IP\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u3068\u306f\uff1f<\/h3><div class=\"faq_a\">\n<p>IP\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u3068\u306f\u3001<strong><span class=\"swl-marker mark_yellow\">IP\u30d1\u30b1\u30c3\u30c8\u306e\u4e2d\u306b\u5225\u306eIP\u30d1\u30b1\u30c3\u30c8\u3092\u5305\u3093\u3067\u9001\u4fe1\u3059\u308b\u4ed5\u7d44\u307f<\/span><\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u7528\u9014\u306e\u4e00\u3064\u306b\u3001IPv6\u306e\u30d1\u30b1\u30c3\u30c8\u3092IPv4\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7d4c\u7531\u3067\u904b\u3076\u69cb\u6210\u304c\u3042\u308a\u307e\u3059\u3002\u4e21\u7aef\u306b\u5bfe\u5fdc\u3059\u308b\u30c8\u30f3\u30cd\u30eb\u306e\u7d42\u7aef\u304c\u5fc5\u8981\u3067\u3001IPv4\u5c02\u7528\u306e\u76f8\u624b\u3068\u81ea\u52d5\u7684\u306b\u76f4\u63a5\u901a\u4fe1\u3067\u304d\u308b\u6a5f\u80fd\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>\u30c8\u30f3\u30cd\u30eb\u306e\u7d42\u7aef\u3067\u306f\u3001\u5916\u5074\u306e\u30d8\u30c3\u30c0\u30fc\u3092\u53d6\u308a\u9664\u3044\u3066\u5143\u306e\u30d1\u30b1\u30c3\u30c8\u3092\u51e6\u7406\u3057\u307e\u3059\u3002\u7d4c\u7531\u3059\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u3001\u6700\u7d42\u7684\u306a\u901a\u4fe1\u76f8\u624b\u306e\u5bfe\u5fdc\u3092\u5206\u3051\u3066\u8003\u3048\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"swell-block-faq__item\"><h3 class=\"faq_q\">\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u3068\u30ab\u30d7\u30bb\u30eb\u5316\u306e\u9055\u3044\u306f\uff1f<\/h3><div class=\"faq_a\">\n<p>\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u3068\u30ab\u30d7\u30bb\u30eb\u5316\u306e\u9055\u3044\u306f\u3001\u4ee5\u4e0b\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table style=\"font-size:12px;\" class=\"has-fixed-layout\"><thead><tr><th>\u9805\u76ee<\/th><th>\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0<\/th><th>\u30ab\u30d7\u30bb\u30eb\u5316<\/th><\/tr><\/thead><tbody><tr><td>\u5b9a\u7fa9<\/td><td>\u4eee\u60f3\u7684\u306a\u901a\u4fe1\u7d4c\u8def\uff08\u30c8\u30f3\u30cd\u30eb\uff09\u3092\u69cb\u7bc9\u3059\u308b\u6280\u8853<\/td><td>\u30c7\u30fc\u30bf\u3092\u5225\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u5305\u3080\u51e6\u7406<\/td><\/tr><tr><td>\u7bc4\u56f2<\/td><td>\u901a\u4fe1\u7d4c\u8def\u5168\u4f53\u306e\u69cb\u6210\u3092\u542b\u3080<\/td><td>\u901a\u4fe1\u30d1\u30b1\u30c3\u30c8\u306e\u4e00\u90e8\u306b\u95a2\u3059\u308b\u51e6\u7406<\/td><\/tr><tr><td>\u76ee\u7684<\/td><td>\u7570\u306a\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7d4c\u7531\u3067\u306e\u30d1\u30b1\u30c3\u30c8\u8ee2\u9001<\/td><td>\u5225\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u53ce\u5bb9\u3057\u3066\u904b\u3076\u305f\u3081\u306e\u30d8\u30c3\u30c0\u30fc\u4ed8\u52a0<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u7d50\u8ad6\u3068\u3057\u3066\u3001\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u306e\u306a\u304b\u3067\u30ab\u30d7\u30bb\u30eb\u5316\u304c\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u3068\u3044\u3048\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<\/div><\/div>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081 | \u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u306fVPN\u3084\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306b\u6b20\u304b\u305b\u306a\u3044\u901a\u4fe1\u6280\u8853<\/h2>\n\n\n\n<p>\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u306f\u3001VPN\u3084\u62e0\u70b9\u9593\u63a5\u7d9a\u306a\u3069\u3067\u5229\u7528\u3055\u308c\u308b\u901a\u4fe1\u6280\u8853\u3067\u3059\u3002\u6a5f\u5bc6\u6027\u3084\u5b89\u5168\u6027\u3092\u78ba\u4fdd\u3059\u308b\u969b\u306f\u3001\u6697\u53f7\u5316\u30fb\u8a8d\u8a3c\u306e\u8a2d\u5b9a\u3068\u904b\u7528\u3082\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<p>\u30c7\u30fc\u30bf\u3092\u5305\u3093\u3067\u904b\u3076\u51e6\u7406\u3068\u3001\u30c7\u30fc\u30bf\u3092\u4fdd\u8b77\u3059\u308b\u51e6\u7406\u3092\u533a\u5225\u3059\u308b\u3053\u3068\u304c\u3001\u69cb\u6210\u3092\u7406\u89e3\u3059\u308b\u3046\u3048\u3067\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u30c8\u30f3\u30cd\u30ea\u30f3\u30b0\u306e\u57fa\u790e\u77e5\u8b58\u3092\u78ba\u8a8d\u3057\u3001\u4eca\u5f8c\u306e\u5b66\u7fd2\u3084\u696d\u52d9\u306b\u6d3b\u304b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n<p class=\"aio-source-note\" style=\"font-size:0.9em\">\u7528\u8a9e\u30fb\u63d0\u4f9b\u72b6\u6cc1\u306e\u78ba\u8a8d\u306b\u7528\u3044\u305f\u8cc7\u6599\uff1a<a href=\"https:\/\/www.rfc-editor.org\/rfc\/rfc2003\" target=\"_blank\" rel=\"noopener noreferrer\">RFC 2003\uff1aIP Encapsulation within IP<\/a><\/p>\n\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u306e\u3088\u3046\u306a\u60a9\u307f\u3092\u62b1\u3048\u308b\u4eba\u3082\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002\u8fd1\u5e74\u3001\u30c6\u30ec\u30ef\u30fc\u30af\u3084\u30af\u30e9\u30a6\u30c9\u5229\u7528\u304c\u52a0\u901f\u3057\u3001\u5916\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u306e\u5b89\u5168\u306a\u901a\u4fe1\u304c\u4e0d\u53ef\u6b20\u3068\u306a\u308a\u307e\u3057\u305f\u3002 \u73fe\u5728\u3001\u591a\u62e0\u70b9\u3067\u306e\u904b\u55b6\u306b\u306f\u591a\u304f\u306e\u5834\u5408VPN\u304c\u4f7f\u7528\u3055\u308c\u3066\u304a\u308a\u3001\u30c7\u30fc\u30bf\u3092\u5b89\u5168\u306b\u3084\u308a\u53d6\u308a\u3059 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