{"id":1239,"date":"2022-11-25T20:28:32","date_gmt":"2022-11-25T20:28:32","guid":{"rendered":"https:\/\/securitybriefing.net\/?p=1239"},"modified":"2022-11-25T20:28:32","modified_gmt":"2022-11-25T20:28:32","slug":"%e3%83%8d%e3%83%83%e3%83%88%e3%83%af%e3%83%bc%e3%82%af%e3%81%af%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%ab%e6%a9%9f%e8%83%bd%e3%81%99%e3%82%8b%e3%81%8b","status":"publish","type":"post","link":"https:\/\/securitybriefing.net\/ja\/%e3%83%8d%e3%83%83%e3%83%88%e3%83%af%e3%83%bc%e3%82%af\/%e3%83%8d%e3%83%83%e3%83%88%e3%83%af%e3%83%bc%e3%82%af%e3%81%af%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%ab%e6%a9%9f%e8%83%bd%e3%81%99%e3%82%8b%e3%81%8b\/","title":{"rendered":"\u57fa\u672c\u7684\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\uff1a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4ed5\u7d44\u307f"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u306f\u3001\u76f8\u4e92\u63a5\u7d9a\u3055\u308c\u305f\u30c7\u30d0\u30a4\u30b9\u304c\u6b63\u3057\u304f\u6a5f\u80fd\u3059\u308b\u305f\u3081\u306b\u304a\u4e92\u3044\u306b\u60c5\u5831\u3092\u4ea4\u63db\u3059\u308b\u30b7\u30b9\u30c6\u30e0\u3067\u3059\u3002\u3053\u308c\u306b\u306f\u3001\u30ce\u30fc\u30c8\u30d1\u30bd\u30b3\u30f3\u3001\u30b5\u30fc\u30d0\u30fc\u3001\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u306a\u3069\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u30c7\u30d0\u30a4\u30b9\u306f\u3001\u30eb\u30fc\u30bf\u30fc\u3084\u30b9\u30a4\u30c3\u30c1\u3068\u547c\u3070\u308c\u308b\u7279\u5225\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4ecb\u3057\u3066\u901a\u4fe1\u3057\u307e\u3059\u3002\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u63a5\u7d9a\u3055\u308c\u308b\u30c7\u30d0\u30a4\u30b9\u306e\u6570\u304c\u5897\u3048\u7d9a\u3051\u308b\u4e2d\u3001\u305d\u308c\u3089\u304c\u3069\u306e\u3088\u3046\u306b\u901a\u4fe1\u3057\u3066\u3044\u308b\u304b\u3092\u7406\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3068\u3001\u305d\u308c\u3089\u304c\u3069\u306e\u3088\u3046\u306b\u9023\u643a\u3057\u3066\u30a6\u30a7\u30d6\u95b2\u89a7\u3084\u30e1\u30fc\u30eb\u9001\u4fe1\u306a\u3069\u3092\u53ef\u80fd\u306b\u3057\u3066\u3044\u308b\u304b\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u306f\u3055\u307e\u3056\u307e\u306a\u7a2e\u985e\u304c\u3042\u308a\u3001\u305d\u308c\u305e\u308c\u30ab\u30d0\u30fc\u7bc4\u56f2\u304c\u7570\u306a\u308a\u307e\u3059\u3002\u307e\u305a\u3001\u3055\u307e\u3056\u307e\u306a\u7a2e\u985e\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u63a2\u3063\u3066\u307f\u307e\u3057\u3087\u3046:<\/span><\/p>\n<h2><b>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u7a2e\u985e:<\/b><\/h2>\n<h3><b>LAN \u2013 \u30ed\u30fc\u30ab\u30eb\u30a8\u30ea\u30a2\u30cd\u30c3\u30c8\u30ef\u30fc\u30af<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">LAN\uff08\u30ed\u30fc\u30ab\u30eb\u30a8\u30ea\u30a2\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff09\u306f\u3001\u5c0f\u898f\u6a21\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4e00\u7a2e\u3067\u3042\u308a\u3001\u7d44\u7e54\u3084\u5bb6\u5ead\u306b\u9650\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001\u5bb6\u5ead\u5185\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u30c7\u30d0\u30a4\u30b9\u306e\u6570\u306f\u3001\u4ed6\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bf\u30a4\u30d7\u3068\u6bd4\u8f03\u3057\u3066\u5236\u9650\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u5b66\u6821\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f\u3001\u5bb6\u5ead\u5185\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3088\u308a\u3082\u898f\u6a21\u304c\u5927\u304d\u3044\u3067\u3059\u304c\u3001\u305d\u308c\u3067\u3082\u540c\u3058\u7269\u7406\u7a7a\u9593\u5185\u3067\u591a\u304f\u306e\u30c7\u30d0\u30a4\u30b9\u3092\u76f8\u4e92\u63a5\u7d9a\u3059\u308b\u305f\u3081\u3001LAN\u3068\u898b\u306a\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306b\u306f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3001\u30b5\u30fc\u30d0\u30fc\u306a\u3069\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/span><\/p>\n<h3><b>MAN \u2013 Metropolitan Area Network<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">MAN\u306f\u90fd\u5e02\u5168\u4f53\u3092\u30ab\u30d0\u30fc\u3059\u308b\u62e1\u5f35\u3055\u308c\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u90fd\u5e02\u5185\u3067\u8907\u6570\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u7d50\u5408\u3057\u3066\u63a5\u7d9a\u3059\u308b\u3053\u3068\u3067\u3001MAN\uff08\u30e1\u30c8\u30ed\u30dd\u30ea\u30bf\u30f3\u30a8\u30ea\u30a2\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff09\u3092\u5f62\u6210\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u30bf\u30a4\u30d7\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f\u3088\u308a\u5305\u62ec\u7684\u3067\u3001\u753a\u5168\u4f53\u3092\u30ab\u30d0\u30fc\u3057\u307e\u3059\u3002\u5e73\u5747\u7684\u306a\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u3088\u308a\u3082\u6bd4\u8f03\u7684\u9ad8\u901f\u306a\u30c7\u30fc\u30bf\u901f\u5ea6\u3092\u63d0\u4f9b\u3059\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30bf\u30a4\u30d7\u306f\u3001\u30e1\u30c8\u30ed\u30dd\u30ea\u30bf\u30f3\u30a8\u30ea\u30a2\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08MAN\uff09\u3068\u547c\u3070\u308c\u307e\u3059\u3002<\/span><\/p>\n<h3><b>WAN \u2013 \u5e83\u57df\u30cd\u30c3\u30c8\u30ef\u30fc\u30af<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">WAN\uff08Wide Area Network\uff09\u306f\u3001LAN\uff08Local Area Network\uff09\u306a\u3069\u306e\u5c0f\u3055\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u63a5\u7d9a\u3059\u308b\u5927\u898f\u6a21\u306a\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u3059\u3002<\/span><\/p>\n<p><span style=\"font-weight: 400;\">WAN\u306f\u3001\u591a\u304f\u306e\u90fd\u5e02\u3084\u56fd\u3092\u3064\u306a\u3052\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u3001\u4eba\u3005\u304c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3092\u5229\u7528\u3057\u305f\u308a\u3001\u5e83\u3044\u7bc4\u56f2\u3067\u304a\u4e92\u3044\u306b\u7c21\u5358\u306b\u30b3\u30df\u30e5\u30cb\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u53d6\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u7d44\u7e54\u306e\u8907\u6570\u306eLAN\u304c\u76f8\u4e92\u63a5\u7d9a\u3055\u308c\u308b\u3068\u3001WAN\u304c\u5f62\u6210\u3055\u308c\u307e\u3059\u3002<\/span><\/p>\n<h3><b>WWAN<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u57fa\u672c\u7684\u306b\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306f\u4e16\u754c\u898f\u6a21\u306e\u30a8\u30ea\u30a2\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08WWAN\uff09\u3067\u3059\u3002.<\/span><\/p>\n<h3><b>WLAN \u2013 \u7121\u7ddaLAN<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u7121\u7ddaLAN\u3001\u307e\u305f\u306fWi-Fi\u306f\u3001\u901a\u5e38\u79c1\u305f\u3061\u306e\u5bb6\u5ead\u7528\u30eb\u30fc\u30bf\u30fc\u306b\u3088\u3063\u3066\u4f5c\u6210\u3055\u308c\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u3059\u3002.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">WLAN\u306f\u3001\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3001\u30bf\u30d6\u30ec\u30c3\u30c8\u3001\u30e9\u30c3\u30d7\u30c8\u30c3\u30d7\u3001\u307e\u305f\u306f\u305d\u306e\u4ed6\u306e\u30c7\u30d0\u30a4\u30b9\u304b\u3089\u7121\u7dda\u3067\u63a5\u7d9a\u3067\u304d\u308bLAN\u306e\u4e00\u7a2e\u3067\u3059\u3002\u7121\u7dda\u74b0\u5883\u306f\u3001\u30c7\u30fc\u30bf\u3092\u30b1\u30fc\u30d6\u30eb\u3084\u4ed6\u306e\u7269\u7406\u30e1\u30c7\u30a3\u30a2\u306e\u4ee3\u308f\u308a\u306b\u96fb\u6ce2\u3067\u9001\u4fe1\u3059\u308b\u305f\u3081\u3001\u901f\u5ea6\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3001\u30ab\u30d0\u30ec\u30c3\u30b8\u306e\u70b9\u3067\u6709\u7dda\u30b1\u30fc\u30d6\u30eb\u30d9\u30fc\u30b9\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u306f\u7570\u306a\u308b\u7279\u6027\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002\u7121\u7dda\u63a5\u7d9a\u306e\u6700\u5927\u306e\u5229\u70b9\u306e\u4e00\u3064\u306f\u3001\u305d\u306e\u67d4\u8edf\u6027\u3067\u3059\u3002.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u4e0a\u8a18\u3067\u8a00\u53ca\u3057\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bf\u30a4\u30d7\u306b\u52a0\u3048\u3066\u3001\u4ed6\u306b\u3082\u7570\u306a\u308b\u30b5\u30a4\u30ba\u3084\u76ee\u7684\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u3042\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001,<\/span><\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">SAN- \u30b9\u30c8\u30ec\u30fc\u30b8\u30a8\u30ea\u30a2\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3002.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">EPN \u2013 \u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3002.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">VPN \u2013 \u4eee\u60f3\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3002.<\/span><\/li>\n<\/ul>\n<h2><b>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f2\u3064\u306e\u65b9\u6cd5\u3067\u8868\u73fe\u3067\u304d\u307e\u3059\uff1a<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f\u901a\u5e38\u3001\u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30dd\u30ed\u30b8\u30fc\u300d\u3067\u8868\u3055\u308c\u3001\u3053\u308c\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e\u30c7\u30d0\u30a4\u30b9\u304c\u3069\u306e\u3088\u3046\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u6307\u3057\u307e\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30dd\u30ed\u30b8\u30fc\u306b\u306f\u3001\u8ad6\u7406\u7684\u3068\u7269\u7406\u7684\u306e2\u3064\u306e\u4e3b\u8981\u306a\u30bf\u30a4\u30d7\u304c\u3042\u308a\u307e\u3059\u3002.<\/span><\/p>\n<h3><b>\u8ad6\u7406\u30c8\u30dd\u30ed\u30b8\u30fc<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u8ad6\u7406\u30c8\u30dd\u30ed\u30b8\u30fc\u306f\u3001IP\u30a2\u30c9\u30ec\u30b9\u3001\u30c7\u30d0\u30a4\u30b9\u9593\u306e\u63a5\u7d9a\u3001\u4f7f\u7528\u3055\u308c\u3066\u3044\u308b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u30d7\u30ed\u30c8\u30b3\u30eb\u306a\u3069\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u8ad6\u7406\u7684\u306a\u5074\u9762\u3092\u793a\u3057\u307e\u3059\u3002.<\/span><\/p>\n<h3><b>\u7269\u7406\u30c8\u30dd\u30ed\u30b8\u30fc<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u7269\u7406\u30c8\u30dd\u30ed\u30b8\u30fc\u306f\u3001\u7269\u7406\u7684\u306b\u3069\u306e\u3088\u3046\u306b\u914d\u7f6e\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u793a\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u306f\u3001\u30c7\u30d0\u30a4\u30b9\u306e\u914d\u7f6e\u5834\u6240\u3001\u4f7f\u7528\u3055\u308c\u308b\u30b1\u30fc\u30d6\u30eb\u306e\u7a2e\u985e\u3001\u5fc5\u8981\u306a\u30dd\u30fc\u30c8\u6570\u3001\u30b5\u30fc\u30d0\u30fc\u304c\u63a5\u7d9a\u3055\u308c\u308b\u30dd\u30fc\u30c8\/\u30b9\u30a4\u30c3\u30c1\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u7269\u7406\u30c8\u30dd\u30ed\u30b8\u30fc\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u3067\u306e\u6a5f\u5668\u306e\u4f4d\u7f6e\u3068\u76ee\u7684\u3092\u793a\u3059\u56f3\u3067\u3059\u3002.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u3057\u304b\u3057\u3001\u30c7\u30d0\u30a4\u30b9\u306e\u76ee\u7684\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30dd\u30ed\u30b8\u30fc\u304c\u751f\u3058\u307e\u3059\u3002.<\/span><\/p>\n<h2><b>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30dd\u30ed\u30b8\u30fc<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u74b0\u5883\u3067\u30c7\u30d0\u30a4\u30b9\u3092\u8868\u73fe\u3059\u308b\u65b9\u6cd5\u306f\u8907\u6570\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u3089\u306f\u7570\u306a\u308b\u76ee\u7684\u306b\u57fa\u3065\u3044\u3066\u30b0\u30eb\u30fc\u30d7\u5316\u3067\u304d\u307e\u3059\u3002.<\/span><\/p>\n<h3><b>\u30b9\u30bf\u30fc\u30e9\u30a4\u30af\u30c8\u30dd\u30ed\u30b8\u30fc<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">LAN\u306b\u6700\u3082\u3088\u304f\u4f7f\u7528\u3055\u308c\u308b\u30c8\u30dd\u30ed\u30b8\u30fc\u306f\u30b9\u30bf\u30fc\u578b\u30c8\u30dd\u30ed\u30b8\u30fc\u3067\u3059\u3002\u30b9\u30bf\u30fc\u578b\u30c8\u30dd\u30ed\u30b8\u30fc\u306f\u3001\u5c0f\u898f\u6a21\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3001\u4f8b\u3048\u3070\u5c0f\u898f\u6a21\u306a\u30d3\u30b8\u30cd\u30b9\u3067\u4f7f\u7528\u3055\u308c\u308b\u3082\u306e\u306b\u6700\u9069\u3067\u3059\u3002.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u4f8b\u3048\u3070\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a5\u7d9a\u3084\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30a2\u30af\u30bb\u30b9\u3060\u3051\u304c\u5fc5\u8981\u306a\u5834\u5408\u3001\u30c7\u30d0\u30a4\u30b9\u3092\u30b9\u30bf\u30fc\u30e9\u30a4\u30af\u30c8\u30dd\u30ed\u30b8\u30fc\u3067\u30b0\u30eb\u30fc\u30d7\u5316\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u3059\u3079\u3066\u306e\u30de\u30b7\u30f3\u306f\u4e2d\u592e\u306eHUB\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30ce\u30fc\u30c9\u304c\u6545\u969c\u3057\u3066\u3082\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u306b\u5bb3\u3092\u53ca\u307c\u3059\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u306a\u305c\u306a\u3089\u3001\u975e\u5e38\u306b\u7c21\u5358\u306b\u4fdd\u5b88\u304a\u3088\u3073\u30b0\u30ec\u30fc\u30c9\u30a2\u30c3\u30d7\u3067\u304d\u308b\u304b\u3089\u3067\u3059\u3002.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u3057\u304b\u3057\u3001\u3053\u306e\u30b7\u30ca\u30ea\u30aa\u306e\u554f\u984c\u306f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\u306b\u4e0d\u53ef\u6b20\u306a\u5197\u9577\u6027\u306e\u6b20\u5982\u3067\u3059\u3002.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1240\" src=\"http:\/\/securitybriefing.net\/wp-content\/uploads\/2022\/11\/starlike-topology.jpg\" alt=\"\u30b9\u30bf\u30fc\u30e9\u30a4\u30af\u30c8\u30dd\u30ed\u30b8\u30fc\" width=\"620\" height=\"310\" srcset=\"https:\/\/securitybriefing.net\/wp-content\/uploads\/2022\/11\/starlike-topology.jpg 620w, https:\/\/securitybriefing.net\/wp-content\/uploads\/2022\/11\/starlike-topology-300x150.jpg 300w\" sizes=\"auto, (max-width: 620px) 100vw, 620px\" \/><\/p>\n<h3><b>\u30e1\u30c3\u30b7\u30e5\u30c8\u30dd\u30ed\u30b8\u30fc<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u30e1\u30c3\u30b7\u30e5\u30c8\u30dd\u30ed\u30b8\u30fc\u306f\u3001ISP\uff08\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\uff09\u306a\u3069\u306e\u4fe1\u983c\u6027\u306e\u9ad8\u3044\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u6700\u9069\u3067\u3059\u3002\u3053\u306e\u8a2d\u8a08\u3067\u306f\u3001\u3059\u3079\u3066\u304c\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30b1\u30fc\u30d6\u30eb\u3084\u30b9\u30a4\u30c3\u30c1\u306b\u554f\u984c\u304c\u767a\u751f\u3057\u3066\u3082\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3084\u63a5\u7d9a\u3057\u3088\u3046\u3068\u3057\u3066\u3044\u308b\u5834\u6240\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u4ed6\u306e\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u5b8c\u5168\u306a\u5197\u9577\u6027\u306f\u3001\u3088\u308a\u591a\u304f\u306e\u30c7\u30d0\u30a4\u30b9\u3068\u9577\u3044\u30b1\u30fc\u30d6\u30eb\u304c\u5fc5\u8981\u3067\u3042\u308a\u3001\u30b3\u30b9\u30c8\u304c\u9ad8\u304f\u306a\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u5b8c\u5168\u306a\u30e1\u30c3\u30b7\u30e5\u30c8\u30dd\u30ed\u30b8\u30fc\u306f\u3001\u4e00\u822c\u7684\u306b\u30b9\u30bf\u30fc\u30e9\u30a4\u30af\u30c8\u30dd\u30ed\u30b8\u30fc\u3088\u308a\u3082\u5b9f\u88c5\u30b3\u30b9\u30c8\u304c\u9ad8\u304f\u306a\u308a\u307e\u3059\u3002.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u30e1\u30c3\u30b7\u30e5\u30c8\u30dd\u30ed\u30b8\u30fc\u306e\u4f8b\u3068\u3057\u3066\u3001Google Wi-Fi\u3001Google Home\u3001\u307e\u305f\u306f\u8ecd\u7528\u30c7\u30d0\u30a4\u30b9\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u3042\u308a\u307e\u3059\u3002.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1241\" src=\"http:\/\/securitybriefing.net\/wp-content\/uploads\/2022\/11\/mesh-topology.jpg\" alt=\"\u30e1\u30c3\u30b7\u30e5\u30c8\u30dd\u30ed\u30b8\u30fc\" width=\"620\" height=\"310\" \/><\/p>\n<h3><b>\u90e8\u5206\u30e1\u30c3\u30b7\u30e5\u30c8\u30dd\u30ed\u30b8\u30fc<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u90e8\u5206\u30e1\u30c3\u30b7\u30e5\u30c8\u30dd\u30ed\u30b8\u30fc\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4e00\u90e8\u306e\u30b9\u30a4\u30c3\u30c1\u3068\u90e8\u5206\u306b\u306e\u307f\u5197\u9577\u6027\u3092\u63d0\u4f9b\u3059\u308b\u3001\u3088\u308a\u624b\u9803\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30dd\u30ed\u30b8\u30fc\u3067\u3059\u3002\u4ed6\u306e\u30b9\u30a4\u30c3\u30c1\u306b\u306f\u4ee3\u66ff\u7d4c\u8def\u304c\u3042\u308a\u307e\u305b\u3093\u3002.<\/span><\/p>\n<h3><b>\u30cf\u30d6\u30a2\u30f3\u30c9\u30b9\u30dd\u30fc\u30af\u30c8\u30dd\u30ed\u30b8\u30fc<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u30cf\u30d6\u30a2\u30f3\u30c9\u30b9\u30dd\u30fc\u30af\u30c8\u30dd\u30ed\u30b8\u30fc\u306f\u3001WAN\uff08\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\uff09\u8a2d\u8a08\u3067\u983b\u7e41\u306b\u5229\u7528\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u30c8\u30dd\u30ed\u30b8\u30fc\u306e3\u3064\u306e\u30eb\u30fc\u30bf\u30fc\u306f\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u304a\u4e92\u3044\u3092\u77e5\u3089\u306a\u3044\u72b6\u614b\u3067\u3059\u3002\u30c7\u30fc\u30bf\u304c\u76ee\u7684\u5730\u306b\u5230\u9054\u3059\u308b\u305f\u3081\u306b\u306f\u3001R1\u3068R3\u306e\u4e21\u65b9\u304cR2\u306b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u9001\u4fe1\u3057\u3001R2\u304c\u305d\u308c\u3092\u6b63\u3057\u304f\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3059\u308b\u65b9\u6cd5\u3092\u77e5\u3063\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001R1\u304cR3\u306b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u9001\u308a\u305f\u3044\u5834\u5408\u3001\u30cf\u30d6\uff08R2\uff09\u3092\u901a\u3058\u3066\u9001\u4fe1\u3057\u307e\u3059\u3002\u30cf\u30d6\u306f\u305d\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u51e6\u7406\u3057\u3001\u30ea\u30c0\u30a4\u30ec\u30af\u30c8\u3059\u308b\u65b9\u6cd5\u3092\u77e5\u3063\u3066\u3044\u307e\u3059\u3002.<\/span><\/p>\n<h2><b>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u69cb\u6210\u3059\u308b\u8981\u7d20\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\uff1a<\/span><\/p>\n<h3><b>\u30a8\u30f3\u30c9\u30c7\u30d0\u30a4\u30b9<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u63a5\u7d9a\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3059\u308b\u7269\u7406\u30c7\u30d0\u30a4\u30b9\u306f\u30a8\u30f3\u30c9\u30c7\u30d0\u30a4\u30b9\u3068\u3057\u3066\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306b\u306fPC\u3001\u30e9\u30c3\u30d7\u30c8\u30c3\u30d7\u3001\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3001\u30b5\u30fc\u30d0\u30fc\u306a\u3069\u304c\u542b\u307e\u308c\u307e\u3059\u3002\u63a5\u7d9a\u306f\u3001\u96fb\u6c17\u3001\u5149\u30a4\u30f3\u30d1\u30eb\u30b9\u3001\u307e\u305f\u306f\u96fb\u6ce2\u306a\u3069\u306e\u8907\u6570\u306e\u30c1\u30e3\u30cd\u30eb\u3092\u901a\u3058\u3066\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3001\u30e9\u30c3\u30d7\u30c8\u30c3\u30d7\u3001PC\u304b\u3089\u7121\u7dda\u3067\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u63a5\u7d9a\u3067\u304d\u307e\u3059\u3002\u30e9\u30c3\u30d7\u30c8\u30c3\u30d7\u3084PC\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b1\u30fc\u30d6\u30eb\uff08UTP\uff09\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002.<\/span><\/p>\n<h3><b>\u30b9\u30a4\u30c3\u30c1<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u30b9\u30a4\u30c3\u30c1\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08LAN\uff09\u5185\u3067\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u3084\u30d7\u30ea\u30f3\u30bf\u306a\u3069\u306e\u8907\u6570\u306e\u30a8\u30f3\u30c9\u30c7\u30d0\u30a4\u30b9\u3092\u76f8\u4e92\u63a5\u7d9a\u3057\u307e\u3059\u3002.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u3053\u306e\u30c7\u30d0\u30a4\u30b9\u306f\u3001\u591a\u304f\u306e\u30dd\u30fc\u30c8\u3092\u6271\u3046\u80fd\u529b\u3067\u4eba\u6c17\u304c\u3042\u308a\u3001\u30dd\u30fc\u30c8\u3042\u305f\u308a\u306e\u901f\u5ea6\u306f1\u304b\u308910 Gbps\u3067\u3059\u3002\u30b9\u30a4\u30c3\u30c1\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u30a8\u30f3\u30c9\u30c7\u30d0\u30a4\u30b9\u3092\u8b58\u5225\u3059\u308b\u305f\u3081\u306bMAC\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u3069\u306e\u30c7\u30d0\u30a4\u30b9\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3057\u3066\u3044\u308b\u304b\u3092\u8ffd\u8de1\u3057\u3084\u3059\u304f\u306a\u308a\u3001\u8a31\u53ef\u3055\u308c\u305f\u30c7\u30d0\u30a4\u30b9\u306e\u307f\u304c\u30c7\u30fc\u30bf\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002.<\/span><\/p>\n<h3><b>\u30eb\u30fc\u30bf\u30fc<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u30eb\u30fc\u30bf\u30fc\u306f\u3001\u8907\u6570\u306e\u5c0f\u3055\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08LAN\uff09\u3092\u63a5\u7d9a\u3057\u30661\u3064\u306e\u5927\u304d\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08WAN- \u5e83\u57df\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff09\u3092\u5f62\u6210\u3057\u307e\u3059\u3002\u30eb\u30fc\u30bf\u30fc\u306f\u3001\u4efb\u610f\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30bd\u30fc\u30b9\u304b\u3089\u4efb\u610f\u306e\u5b9b\u5148\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3078\u306e\u30d1\u30b1\u30c3\u30c8\u914d\u4fe1\u3092\u51e6\u7406\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u63a5\u7d9a\u3059\u308b\u30c7\u30d0\u30a4\u30b9\u3067\u3059\u3002\u30eb\u30fc\u30bf\u30fc\u306f\u3001\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u304a\u3088\u3073\u53d7\u4fe1\u3059\u308b\u30c7\u30d0\u30a4\u30b9\u3092\u8b58\u5225\u3059\u308b\u305f\u3081\u306bIP\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u30eb\u30fc\u30bf\u30fc\u306f\u901a\u5e38\u30012\u304b\u30895\u30dd\u30fc\u30c8\u3092\u6301\u3061\u3001\u30b9\u30a4\u30c3\u30c1\u306f\u305d\u308c\u3088\u308a\u3082\u591a\u304f\u306e\u30dd\u30fc\u30c8\u3092\u6301\u3064\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u4e21\u65b9\u306e\u30c7\u30d0\u30a4\u30b9\u306f\u30e2\u30c7\u30eb\u306b\u5fdc\u3058\u3066100 Mbps\u304b\u308910 Gbps\u306e\u901f\u5ea6\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002.<\/span><\/p>\n<h3><b>\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3092\u6301\u3064\u3053\u3068\u3067\u3001\u4eee\u60f3\u4fb5\u5165\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/span><\/p>\n<h3><b>\u4f1d\u9001\u5a92\u4f53<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u4f1d\u9001\u5a92\u4f53\u306f\u3001\u60c5\u5831\u304c\u4f1d\u9001\u3055\u308c\u308b\u624b\u6bb5\u3067\u3042\u308a\u3001\u4f8b\u3048\u3070\u30b1\u30fc\u30d6\u30eb\u3092\u901a\u3058\u3066\u3001\u307e\u305f\u306f\u7121\u7dda\u3067\u884c\u308f\u308c\u307e\u3059\u3002.<\/span><\/p>\n<h2><b>\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u3069\u306e\u3088\u3046\u306b\u901a\u4fe1\u3057\u307e\u3059\u304b\uff1f<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f\u3001Facebook\u3084Google\u306e\u3088\u3046\u306a\u30b5\u30a4\u30c8\u3068\u901a\u4fe1\u3059\u308b\u305f\u3081\u306b\u4e00\u610f\u306e\u8b58\u5225\u5b50\u3092\u6301\u305f\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u3053\u308c\u3092IP\u307e\u305f\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u547c\u3073\u307e\u3059\u3002IP\u3001\u307e\u305f\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u307e\u305f\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u30c7\u30d0\u30a4\u30b9\u3092\u8b58\u5225\u3059\u308b\u65b9\u6cd5\u3067\u3059\u3002\u3053\u306e\u756a\u53f7\u306f\u4e00\u610f\u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u540c\u3058\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u307e\u305f\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306b\u540c\u4e00\u306eIP\u30a2\u30c9\u30ec\u30b9\u304c2\u3064\u5b58\u5728\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u306a\u305c\u306a\u3089\u3001\u305d\u308c\u306f\u7af6\u5408\u3092\u5f15\u304d\u8d77\u3053\u3057\u3001\u63a5\u7d9a\u304c\u6b63\u3057\u304f\u6a5f\u80fd\u3057\u306a\u304f\u306a\u308b\u304b\u3089\u3067\u3059\u3002.<\/span><\/p>\n<h3><b>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u6210\u9577<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u8fd1\u5e74\u3001\u4e16\u754c\u4e2d\u3067\u63a5\u7d9a\u3055\u308c\u305f\u30c7\u30d0\u30a4\u30b9\u306e\u6570\u304c\u6025\u5897\u3057\u3066\u3044\u307e\u3059\u30022020\u5e74\u306b\u306f\u3001\u7d04500\u5104\u53f0\u306e\u30c7\u30d0\u30a4\u30b9\u304c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u305f\u3053\u3068\u3092\u3054\u5b58\u77e5\u3067\u3059\u304b\uff1f\u305d\u3057\u3066\u3001\u305d\u306e500\u5104\u53f0\u306e\u30c7\u30d0\u30a4\u30b9\u306e\u4e2d\u3067\u3001\u307e\u3059\u307e\u3059\u591a\u304f\u306e\u6570\u304c\u30e2\u30ce\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\uff08IoT\uff09\u306e\u4e00\u90e8\u3067\u3059\u3002.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u30e2\u30ce\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\uff08IoT\uff09\u306f\u3001\u30c7\u30fc\u30bf\u3092\u53ce\u96c6\u3057\u5408\u3044\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3092\u4ecb\u3057\u3066\u901a\u4fe1\u3067\u304d\u308b\u30c7\u30d0\u30a4\u30b9\u3092\u6307\u3057\u307e\u3059\u3002\u4e00\u822c\u7684\u306aIoT\u30c7\u30d0\u30a4\u30b9\u306e\u4f8b\u306b\u306f\u3001\u30bb\u30f3\u30b5\u30fc\u3001\u30b9\u30de\u30fc\u30c8\u30db\u30fc\u30e0\u30c7\u30d0\u30a4\u30b9\u3001\u652f\u6255\u3044\u7aef\u672b\u3001\u30b9\u30de\u30fc\u30c8\u30a6\u30a7\u30a2\u30e9\u30d6\u30eb\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30c7\u30d0\u30a4\u30b9\u3082IP\u30a2\u30c9\u30ec\u30b9\u3092\u6301\u3064\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">IP\u30a2\u30c9\u30ec\u30b9\u306b\u306f2\u7a2e\u985e\u3042\u308a\u307e\u3059\uff1a<\/span><\/p>\n<h2><b>\u516c\u958bIP\u5bfe\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP<\/b><\/h2>\n<h3><b>\u516c\u958bIP\u30a2\u30c9\u30ec\u30b9<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u540d\u524d\u304c\u793a\u3059\u3088\u3046\u306b\u3001\u516c\u958bIP\u30a2\u30c9\u30ec\u30b9\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u306e\u901a\u4fe1\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002NIC\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u60c5\u5831\u30bb\u30f3\u30bf\u30fc\uff09\u3084IANA\u306e\u3088\u3046\u306a\u7d44\u7e54\u304c\u516c\u958bIP\u30a2\u30c9\u30ec\u30b9\u3092\u767b\u9332\u3057\u3001\u305d\u308c\u3092\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30b5\u30fc\u30d3\u30b9\u30d7\u30ed\u30d0\u30a4\u30c0\u30fc\uff08ISP\uff09\u3084\u4ed6\u306e\u30b0\u30eb\u30fc\u30d7\u306b\u5272\u308a\u5f53\u3066\u307e\u3059\u3002.<\/span><\/p>\n<h3><b>\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u306f\u3001\u901a\u5e38\u3001\u5bb6\u5ead\u3084\u5b66\u6821\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u3088\u3046\u306a\u30ed\u30fc\u30ab\u30eb\u30a8\u30ea\u30a2\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08LAN\uff09\u3067\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u306f\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u306b\u5b58\u5728\u3057\u307e\u305b\u3093\u3002\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u304c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u4e92\u3044\u306b\u901a\u4fe1\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u306b\u3001NAT\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u5909\u63db\uff09\u3068\u3044\u3046\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u8a2d\u8a08\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u304c\u516c\u958bIP\u306b\u5909\u63db\u3055\u308c\u307e\u3059\u3002.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">NAT\u306f\u3001\u653b\u6483\u8005\u304c\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u30a2\u30c9\u30ec\u30b9\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u306e\u3092\u96e3\u3057\u304f\u3059\u308b\u3053\u3068\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002.<\/span><\/p>\n<h2><b>\u8981\u7d04<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u63a5\u7d9a\u3055\u308c\u305f\u30c7\u30d0\u30a4\u30b9\u306e\u6570\u304c\u5897\u3048\u7d9a\u3051\u308b\u4e2d\u3067\u3001\u305d\u308c\u3089\u304c\u3069\u306e\u3088\u3046\u306b\u4e92\u3044\u306b\u901a\u4fe1\u3059\u308b\u304b\u3092\u7406\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u7570\u306a\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3068\u3001\u305d\u308c\u3089\u304c\u3069\u306e\u3088\u3046\u306b\u9023\u643a\u3057\u3066\u30a6\u30a7\u30d6\u3092\u95b2\u89a7\u3057\u305f\u308a\u3001\u30e1\u30fc\u30eb\u3092\u9001\u4fe1\u3057\u305f\u308a\u3059\u308b\u3053\u3068\u3092\u53ef\u80fd\u306b\u3059\u308b\u304b\u3092\u898b\u3066\u304d\u307e\u3057\u305f\u3002\u307e\u305f\u3001IP\u30a2\u30c9\u30ec\u30b9\u304c\u30c7\u30d0\u30a4\u30b9\u3092\u8b58\u5225\u3059\u308b\u5f79\u5272\u3092\u679c\u305f\u3057\u3001\u306a\u305c\u30ed\u30fc\u30ab\u30eb\u30a8\u30ea\u30a2\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8IP\u304c\u4f7f\u7528\u3055\u308c\u308b\u306e\u304b\u3092\u898b\u3066\u304d\u307e\u3057\u305f\u3002\u3053\u308c\u3089\u306e\u6280\u8853\u304c\u3069\u306e\u3088\u3046\u306b\u6a5f\u80fd\u3059\u308b\u304b\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u307e\u3059\u307e\u3059\u76f8\u4e92\u63a5\u7d9a\u3055\u308c\u305f\u4e16\u754c\u306b\u79fb\u884c\u3059\u308b\u4e2d\u3067\u3088\u308a\u91cd\u8981\u3067\u3059\u3002.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u306f\u3001\u76f8\u4e92\u306b\u63a5\u7d9a\u3055\u308c\u305f\u30c7\u30d0\u30a4\u30b9\u306e\u30b7\u30b9\u30c6\u30e0\u3067\u3042\u308a\u3001\u4e92\u3044\u306b\u60c5\u5831\u3092\u4ea4\u63db\u3057\u3066\u6b63\u3057\u304f\u6a5f\u80fd\u3059\u308b\u3002\u3053\u308c\u306b\u306f\u30ce\u30fc\u30c8\u30d1\u30bd\u30b3\u30f3\u3001\u30b5\u30fc\u30d0\u30fc\u3001\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u306a\u3069\u304c\u542b\u307e\u308c\u308b\u3002\u30c7\u30d0\u30a4\u30b9\u306f\u4e92\u3044\u306b\u901a\u4fe1\u3057... <a class=\"more-link\" href=\"https:\/\/securitybriefing.net\/ja\/%e3%83%8d%e3%83%83%e3%83%88%e3%83%af%e3%83%bc%e3%82%af\/%e3%83%8d%e3%83%83%e3%83%88%e3%83%af%e3%83%bc%e3%82%af%e3%81%af%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%ab%e6%a9%9f%e8%83%bd%e3%81%99%e3%82%8b%e3%81%8b\/\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"screen-reader-text\">\u57fa\u672c\u7684\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30ad\u30f3\u30b0\uff1a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4ed5\u7d44\u307f<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":1245,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[],"class_list":["post-1239","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-networks","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How do Internet 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