{"id":12032,"date":"2022-09-27T09:13:12","date_gmt":"2022-09-27T00:13:12","guid":{"rendered":"https:\/\/www.secuavail.com\/kb\/?p=12032"},"modified":"2024-08-23T13:27:16","modified_gmt":"2024-08-23T04:27:16","slug":"fortigate_nat","status":"publish","type":"post","link":"https:\/\/www.secuavail.com\/kb\/practical-post\/fortigate_nat\/","title":{"rendered":"\u3010\u73fe\u5834SE\u596e\u95d8\u8a18 vol.2 \u3011\u300c\u5929\u72d7\u3068\u306a\u3063\u305f\u30a8\u30f3\u30b8\u30cb\u30a2\u300d~FortiGate NAT\u306e\u4ed5\u69d8\u7de8~"},"content":{"rendered":"<p>\u7b46\u81f4\u306b\u3064\u3044\u3066\u306f\u30bf\u30a4\u30c8\u30eb\u6bce\u306b\u7d71\u4e00\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002\u3042\u3089\u304b\u3058\u3081\u3054\u4e86\u627f\u304f\u3060\u3055\u3044\u3002<br \/>\n\u672c\u4ef6\u306f\u30d5\u30a3\u30af\u30b7\u30e7\u30f3\u3067\u3042\u308a\u3001\u5b9f\u969b\u306b\u767a\u751f\u3057\u305f\u4e8b\u8c61\u306b\u811a\u8272\u3092\u52a0\u3048\u3066\u304a\u308a\u307e\u3059\u3002<br \/>\n\u30b7\u30ea\u30fc\u30ba\u8a18\u4e8b\u4e00\u89a7\uff1a<br \/>\n<a href=\"https:\/\/www.secuavail.com\/kb\/practical-post\/se-system-network\/\">\u3010\u73fe\u5834SE\u596e\u95d8\u8a18 vol.1\u3011\u793e\u5185\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u300c\u5d50\u300d\u304c\u8d77\u304d\u305f\u305d\u306e\u65e5<\/a><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\"><p class=\"ez-toc-title\" style=\"cursor:inherit\">\u76ee\u6b21<\/p>\n<\/div><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.secuavail.com\/kb\/practical-post\/fortigate_nat\/#%E3%80%8E%E5%A4%8F%E3%81%AE%E6%9A%91%E3%81%95%E3%81%AB%E6%B0%97%E3%81%8C%E3%81%B5%E3%82%8C%E3%81%A6%E3%80%81%E7%AD%86%E8%80%85%E3%81%AF%E5%A4%A9%E7%8B%97%E3%81%AB%E3%81%AA%E3%81%A3%E3%81%A6%E3%81%84%E3%82%8B%E3%81%AE%E3%81%A0%E3%80%82%E3%82%86%E3%82%8B%E3%81%97%E7%B5%A6%E3%81%88%E3%80%82_-_%E5%A4%AA%E5%AE%B0%E6%B2%BB_%E5%A4%A9%E7%8B%97%E3%80%8F\" >\u300e\u590f\u306e\u6691\u3055\u306b\u6c17\u304c\u3075\u308c\u3066\u3001\u7b46\u8005\u306f\u5929\u72d7\u306b\u306a\u3063\u3066\u3044\u308b\u306e\u3060\u3002\u3086\u308b\u3057\u7d66\u3048\u3002 - \u592a\u5bb0\u6cbb \u5929\u72d7\u300f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.secuavail.com\/kb\/practical-post\/fortigate_nat\/#%E6%9C%AA%E7%9F%A5%E3%81%A8%E3%81%AE%E9%81%AD%E9%81%87\" >\u672a\u77e5\u3068\u306e\u906d\u9047<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.secuavail.com\/kb\/practical-post\/fortigate_nat\/#%E5%8E%9F%E5%9B%A0%E5%88%87%E3%82%8A%E5%88%86%E3%81%91\" >\u539f\u56e0\u5207\u308a\u5206\u3051<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.secuavail.com\/kb\/practical-post\/fortigate_nat\/#%E5%A4%A9%E7%8B%97%E3%81%A8%E3%81%AA%E3%81%A3%E3%81%9F%E3%82%A8%E3%83%B3%E3%82%B8%E3%83%8B%E3%82%A2%E3%81%AF%E9%BC%BB%E3%81%8C%E6%8A%98%E3%82%8C%E3%82%8B%E3%81%A8%E3%81%8D%E3%81%AB%E6%9C%80%E3%82%82%E6%88%90%E9%95%B7%E3%81%99%E3%82%8B%E3%81%AE%E3%81%A0\" >\u5929\u72d7\u3068\u306a\u3063\u305f\u30a8\u30f3\u30b8\u30cb\u30a2\u306f\u9f3b\u304c\u6298\u308c\u308b\u3068\u304d\u306b\u6700\u3082\u6210\u9577\u3059\u308b\u306e\u3060<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.secuavail.com\/kb\/practical-post\/fortigate_nat\/#%E3%81%BE%E3%81%A8%E3%82%81\" >\u307e\u3068\u3081<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"%E3%80%8E%E5%A4%8F%E3%81%AE%E6%9A%91%E3%81%95%E3%81%AB%E6%B0%97%E3%81%8C%E3%81%B5%E3%82%8C%E3%81%A6%E3%80%81%E7%AD%86%E8%80%85%E3%81%AF%E5%A4%A9%E7%8B%97%E3%81%AB%E3%81%AA%E3%81%A3%E3%81%A6%E3%81%84%E3%82%8B%E3%81%AE%E3%81%A0%E3%80%82%E3%82%86%E3%82%8B%E3%81%97%E7%B5%A6%E3%81%88%E3%80%82_-_%E5%A4%AA%E5%AE%B0%E6%B2%BB_%E5%A4%A9%E7%8B%97%E3%80%8F\"><\/span>\u300e\u590f\u306e\u6691\u3055\u306b\u6c17\u304c\u3075\u308c\u3066\u3001\u7b46\u8005\u306f\u5929\u72d7\u306b\u306a\u3063\u3066\u3044\u308b\u306e\u3060\u3002\u3086\u308b\u3057\u7d66\u3048\u3002 - \u592a\u5bb0\u6cbb \u5929\u72d7\u300f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u79c1\u306f\u4f1a\u793e\u306e\u81ea\u5e2d\u306b\u8e0f\u3093\u53cd\u308a\u8fd4\u308a\u306a\u304c\u3089\u601d\u6848\u306b\u803d\u3063\u3066\u3044\u305f\u3002<br \/>\nBIG-IP\u3068FortiGate\u3092\u7528\u3044\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u691c\u8a3c\u74b0\u5883\u306b\u3064\u3044\u3066\u3002<\/p>\n<p>\u3053\u3093\u306aEasy\u306a\u74b0\u5883\u69cb\u7bc9\u3001\u81ea\u5206\u306b\u3068\u3063\u3066\u306f\u969c\u5bb3\u306b\u3082\u306a\u308a\u5f97\u308b\u306f\u305a\u306f\u306a\u3044\u3002<br \/>\n\u81ea\u5206\u4ee5\u5916\u306b\u624b\u304c\u7a7a\u3044\u3066\u3044\u308b\u4eba\u304c\u3044\u308c\u3070\u3001\u305d\u306e\u4eba\u306e\u5f8c\u5b66\u306e\u305f\u3081\u306b\u5bfe\u5fdc\u3092\u4f9d\u983c\u3059\u308b\u306e\u306b\u3002<br \/>\n\u305f\u3060\u306eFortiGate\u3067NAT\u3059\u308b\u3060\u3051\u306e\u74b0\u5883\u69cb\u7bc9\u3060\u3002<br \/>\nFortiGate\u3092\u30af\u30e9\u30b9\u30bf\u30ea\u30f3\u30b0\u69cb\u6210\u3067\u69cb\u7bc9\u3059\u308b\u308f\u3051\u3067\u3082\u3001vdom\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5206\u5272\u3059\u308b\u308f\u3051\u3067\u3082\u306a\u3093\u3067\u3082\u306a\u3044\u3002<br 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loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-12045\" src=\"https:\/\/www.secuavail.com\/kb\/wp-content\/uploads\/2022\/09\/fea33c32c76127dc6495ea8c755b74c2.png\" alt=\"\" width=\"568\" height=\"666\" srcset=\"https:\/\/www.secuavail.com\/kb\/wp-content\/uploads\/2022\/09\/fea33c32c76127dc6495ea8c755b74c2.png 568w, https:\/\/www.secuavail.com\/kb\/wp-content\/uploads\/2022\/09\/fea33c32c76127dc6495ea8c755b74c2-256x300.png 256w\" sizes=\"auto, (max-width: 568px) 100vw, 568px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.secuavail.com\/kb\/wp-content\/uploads\/2022\/09\/243abf994f2edb9c9c13efd08386df14.png\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-12047\" src=\"https:\/\/www.secuavail.com\/kb\/wp-content\/uploads\/2022\/09\/243abf994f2edb9c9c13efd08386df14.png\" alt=\"\" width=\"568\" height=\"492\" srcset=\"https:\/\/www.secuavail.com\/kb\/wp-content\/uploads\/2022\/09\/243abf994f2edb9c9c13efd08386df14.png 568w, https:\/\/www.secuavail.com\/kb\/wp-content\/uploads\/2022\/09\/243abf994f2edb9c9c13efd08386df14-300x260.png 300w\" sizes=\"auto, (max-width: 568px) 100vw, 568px\" \/><\/a><\/p>\n<p>\uff08\u203b\u5b9f\u969b\u306b\u306f\u3082\u3063\u3068\u8907\u96d1\u306a\u69cb\u6210\u3067\u3059\u304c\u3001\u304b\u306a\u308a\u7c21\u7565\u5316\u3057\u3066\u3044\u307e\u3059\u3002\uff09<br \/>\n\uff08\u203b\u30ed\u30b0\u53ce\u96c6\u7528\u30b5\u30fc\u30d0\u306f\u73fe\u6642\u70b9\u3067\u306f\u69cb\u7bc9\u5bfe\u8c61\u5916\u3067\u3057\u305f\u3002\uff09<\/p>\n<p>\u3053\u308c\u3067\u3042\u308c\u3070\u3001\u696d\u52d9\u7528\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8PC\u304b\u3089\u2463\u306eBIG-IP\u306e\u7ba1\u7406\u753b\u9762\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3082\u3067\u304d\u308b\u3057\u3001\u2466\u306eVirtualServer\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u3001\u5b9f\u30b5\u30fc\u30d0\u3078\u306eEtoE\u306e\u901a\u4fe1\u3082\u53ef\u80fd\u3060\u3002<br \/>\n\u30b3\u30fc\u30d2\u304c\u5589\u5965\u306b\u6d41\u308c\u305f\u5f8c\u3001\u820c\u306b\u6b8b\u308b\u82e6\u307f\u306e\u4f59\u97fb\u306b\u6d78\u308a\u306a\u304c\u3089\u3001\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u304b\u3089\u76ee\u3092\u96e2\u3057\u3001\u71b1\u306e\u6b8b\u308b\u624b\u3067\u9f3b\u3092\u89e6\u308b\u3002<\/p>\n<p>\u6e0b\u3005\u3068\u6905\u5b50\u304b\u3089\u7acb\u3061\u4e0a\u304c\u308a\u3001\u7269\u7406\u69cb\u6210\u3092\u69cb\u7bc9\u3059\u308b\u305f\u3081\u306b\u30b5\u30fc\u30d0\u30e9\u30c3\u30af\u3078\u5411\u304b\u3046\u3002<br \/>\n\u305d\u3046\u3044\u3048\u3070\u5fc3\u306a\u3057\u304b\u6700\u8fd1\u3001\u9f3b\u306e\u5148\u7aef\u304c\u9854\u304b\u3089\u9060\u306e\u3044\u3066\u3044\u308b\u6c17\u304c\u3059\u308b\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E6%9C%AA%E7%9F%A5%E3%81%A8%E3%81%AE%E9%81%AD%E9%81%87\"><\/span>\u672a\u77e5\u3068\u306e\u906d\u9047<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u691c\u8a3c\u74b0\u5883\u306e\u69cb\u7bc9\u304c\u5b8c\u4e86\u3057\u3001\u60f3\u5b9a\u3057\u3066\u3044\u305f\u901a\u308a\u306e\u52d5\u4f5c\u3092\u78ba\u8a8d\u3057\u305f\u3002\u9a5a\u304d\u3082\u9054\u6210\u611f\u3082\u611f\u3058\u306a\u3044\u3002\u8a2d\u8a08\u901a\u308a\u3060\u3002<br \/>\n\u691c\u8a3c\u74b0\u5883\u3092\u7834\u68c4\u3057\u3088\u3046\u3068\u601d\u3063\u305f\u6642\u3001\u79c1\u306e\u4e0a\u53f8\u304b\u3089\u30c1\u30e3\u30c3\u30c8\u304c\u5c4a\u3044\u305f\u3002<\/p>\n<p>\u300cBIG-IP\u304b\u3089\u30ed\u30b0\u53ce\u96c6\u7528\u30b5\u30fc\u30d0\u306b\u30ed\u30b0\u304c\u5c4a\u304f\u304b\u78ba\u8a8d\u3057\u305f\u3044\u3002\u30ed\u30b0\u53ce\u96c6\u7528\u30b5\u30fc\u30d0\u3067\u53d7\u4fe1\u5bfe\u8c61\u306eIP\u5236\u9650\u3092\u304b\u3051\u3066\u3044\u308b\u306e\u3067\u3001\u8a31\u53ef\u5bfe\u8c61\u3068\u3059\u308bIP\u30a2\u30c9\u30ec\u30b9\u3092\u6559\u3048\u3066\u307b\u3057\u3044\u3002\u300d<\/p>\n<p>\u3067\u304d\u308b\u30a8\u30f3\u30b8\u30cb\u30a2\u306f\u30ec\u30b9\u30dd\u30f3\u30b9\u304c\u65e9\u3044\u3001\u3068\u6700\u8fd1\u672c\u3067\u8aad\u3093\u3060\u3002<\/p>\n<p>\u300cBIG-IP\u306e\u901a\u4fe1\u304c\u5916\u306b\u51fa\u308b\u3068\u304d\u306f\u3001FortiGate\u306e\u9001\u4fe1\u5143\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306eIP\u306b\u9001\u4fe1\u5143NAT\u3055\u308c\u308b\u306e\u3067\u3001192.168.100.203\u3092\u8a31\u53ef\u3057\u3066\u3044\u305f\u3060\u3051\u307e\u3059\u304b\u3002\u300d<\/p>\n<p>\u300c\u8a31\u53ef\u3057\u305f\u306e\u3067\u30ed\u30b0\u3092\u98db\u3070\u3057\u3066\u307f\u3066\u300d<\/p>\n<p>FortiGate\u306b\u5916\u90e8\u629c\u3051\u30dd\u30ea\u30b7\u30fc\u3092\u3064\u304f\u308a\u3001BIG-IP\u306b\u3066\u30a4\u30d9\u30f3\u30c8\u3092\u767a\u751f\u3055\u305b\u30ed\u30b0\u3092\u751f\u6210\u3057\u305f\u306e\u3061\u3001\u30ed\u30b0\u53ce\u96c6\u7528\u30b5\u30fc\u30d0\u306b\u30ed\u30b0\u30a4\u30f3\u3057\u305f\u3002\u30ed\u30b0\u304c\u4fdd\u7ba1\u3055\u308c\u308b\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u5185\u306e\u3001\u30d5\u30a1\u30a4\u30eb\u4e00\u89a7\u306e\u8868\u793a\u3092\u8a66\u307f\u308b\u3002<\/p>\n<p>\u8003\u3048\u305a\u3068\u3082\u624b\u304c\u52dd\u624b\u306b\u30b3\u30de\u30f3\u30c9\u3092\u5165\u529b\u3057\u3066\u3044\u308b\u306a\u304b\u3001\u4eca\u65e5\u306e\u5915\u98ef\u306b\u3064\u3044\u3066\u601d\u3044\u3092\u5de1\u3089\u305b\u3066\u3044\u305f\u3002<br \/>\n\u7d50\u679c\u306f\u898b\u3048\u3066\u3044\u308b\u3002<\/p>\n<p>\u3060\u304c\u30b5\u30fc\u30d0\u304b\u3089\u306f\u671f\u5f85\u3057\u305f\u901a\u308a\u306e\u7d50\u679c\u306f\u8fd4\u3063\u3066\u3053\u306a\u304b\u3063\u305f\u3002<br \/>\n\u30d5\u30a1\u30a4\u30eb\u304c\u4e00\u3064\u3082\u306a\u3044\u3002\u30ed\u30b0\u304c\u53d7\u4fe1\u3055\u308c\u305f\u3089\u3001\u30d5\u30a1\u30a4\u30eb\u304c\u751f\u6210\u3055\u308c\u308b\u306f\u305a\u3060\u3002<\/p>\n<p>\u81ea\u7136\u3068\u8db3\u3092\u7d44\u3080\u306e\u3092\u3084\u3081\u3001\u524d\u50be\u59ff\u52e2\u306b\u306a\u3063\u305f\u3002<\/p>\n<p>\u5b9f\u306b\u9762\u767d\u3044\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E5%8E%9F%E5%9B%A0%E5%88%87%E3%82%8A%E5%88%86%E3%81%91\"><\/span>\u539f\u56e0\u5207\u308a\u5206\u3051<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u307e\u305a\u60f3\u5b9a\u901a\u308a\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u304b\u3089\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u51fa\u3066\u884c\u3063\u3066\u3044\u308b\u306e\u304b\u78ba\u8a8d\u3059\u308b\u3002<br \/>\nBIG-IP\u306e\u4ed5\u69d8\u3068\u3057\u3066\u3001\u30ed\u30b0\u9001\u4fe1\u6642\u306e\u307f\u306b\u4f7f\u7528\u3059\u308b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u5b9a\u7fa9\u3059\u308b\u3053\u3068\u306a\u3069\u306f\u3067\u304d\u306a\u3044\u3002<br \/>\n\u5ff5\u306e\u305f\u3081\u3001\u30b9\u30a4\u30c3\u30c1\u30dd\u30fc\u30c8\u304b\u3089\u30ed\u30b0\u9001\u4fe1\u304c\u884c\u308f\u308c\u3066\u3044\u306a\u3044\u304b\u3001\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002<br \/>\nBIG-IP\u306e\u7ba1\u7406\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u304b\u3089\u3001\u30dd\u30fc\u30c8\u756a\u53f7514\uff08\u30ed\u30b0\u8ee2\u9001\u7528\u306e\u30dd\u30fc\u30c8\u756a\u53f7\uff09\u304b\u3064\u30ed\u30b0\u53ce\u96c6\u7528\u30b5\u30fc\u30d0\u306eIP\u3068\u306e\u901a\u4fe1\u306b\u8a72\u5f53\u3059\u308b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306b\u7d5e\u3063\u3066\u3001\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3092\u884c\u3063\u305f\u3002<\/p>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"generic\">tcpdump -eni eth0 host 192.168.100.202 and port 514 -X -vvv<\/pre>\n<p>\u51fa\u529b\u3055\u308c\u308bIP\u30a2\u30c9\u30ec\u30b9\u3068\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u3044\u305a\u308c\u306b\u3082\u554f\u984c\u306f\u7121\u3044\u3002<\/p>\n<p>\u6b21\u306bFortiGate\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u51e6\u7406\u306e\u30ed\u30b0\u3092\u78ba\u8a8d\u3057\u305f\u3002\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u30ed\u30b0\u3092\u898b\u3066\u3044\u305f\u3068\u3053\u308d\u3001\u9055\u548c\u611f\u304c\u3042\u3063\u305f\u3002port514\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306f\u3042\u3063\u305f\u3082\u306e\u306e\u3001\u60f3\u5b9a\u3057\u3066\u3044\u306a\u3044IP\u30a2\u30c9\u30ec\u30b9\u304c\u9001\u4fe1\u5143\u3068\u306a\u3063\u3066\u3044\u305f\u3002<\/p>\n<p>BIG-IP\u304b\u3089FortiGate\u3092\u901a\u904e\u3059\u308b\u5916\u629c\u3051\u306e\u901a\u4fe1\u306f\u2461192.168.100.203\uff08FortiGate\u306e\u5916\u90e8\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306eIP\u30a2\u30c9\u30ec\u30b9\uff09\u306bNAT\u3055\u308c\u308b\u3068\u601d\u3063\u3066\u3044\u305f\u304c\u3001192.168.100.204\uff08BIG-IP\u306e\u7ba1\u7406\u30dd\u30fc\u30c8\u30a2\u30af\u30bb\u30b9\u7528\u306e\u5916\u90e8IP\u30a2\u30c9\u30ec\u30b9\uff09\u306bNAT\u3055\u308c\u3066\u3044\u305f\u3002<br \/>\n\u5ff5\u306e\u305f\u3081\u3001\u30ed\u30b0\u53ce\u96c6\u7528\u30b5\u30fc\u30d0\u3067\u3082\u30d1\u30b1\u30c3\u30c8\u30ad\u30e3\u30d7\u30c1\u30e3\u3092\u3057\u305f\u3068\u3053\u308d\u3001192.168.100.204\u304b\u3089\u901a\u4fe1\u304c\u6765\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u305f\u3002<br \/>\n\u79c1\u3057\u304b\u3044\u306a\u3044\u30b5\u30fc\u30d0\u30eb\u30fc\u30e0\u3067\u3001\u81ea\u5206\u306e\u9854\u304c\u71b1\u304f\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u5b9f\u611f\u3057\u305f\u3002\u3053\u308c\u306f\u30b5\u30fc\u30d0\u7fa4\u304c\u767a\u3059\u308b\u6392\u71b1\u306b\u3088\u308b\u3082\u306e\u3067\u306f\u306a\u304f\u3001\u3042\u307e\u308a\u306e\u4e0d\u7532\u6590\u7121\u3055\u306b\u7f9e\u6065\u3057\u3066\u3044\u305f\u305f\u3081\u3060\u3063\u305f\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E5%A4%A9%E7%8B%97%E3%81%A8%E3%81%AA%E3%81%A3%E3%81%9F%E3%82%A8%E3%83%B3%E3%82%B8%E3%83%8B%E3%82%A2%E3%81%AF%E9%BC%BB%E3%81%8C%E6%8A%98%E3%82%8C%E3%82%8B%E3%81%A8%E3%81%8D%E3%81%AB%E6%9C%80%E3%82%82%E6%88%90%E9%95%B7%E3%81%99%E3%82%8B%E3%81%AE%E3%81%A0\"><\/span>\u5929\u72d7\u3068\u306a\u3063\u305f\u30a8\u30f3\u30b8\u30cb\u30a2\u306f\u9f3b\u304c\u6298\u308c\u308b\u3068\u304d\u306b\u6700\u3082\u6210\u9577\u3059\u308b\u306e\u3060<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u3053\u306e\u4ed5\u69d8\u306b\u3064\u3044\u3066\u306f\u52ff\u8ad6\u77e5\u3063\u3066\u3044\u305f\u3002<br \/>\n<a href=\"https:\/\/www.secuavail.com\/kb\/tech-blog\/tb-210428_02\/#\u30d0\u30fc\u30c1\u30e3\u30ebIP\u5229\u7528\u6642\u306e\u30b5\u30fc\u30d0\u767a\u306e\u901a\u4fe1\u306b\u3064\u3044\u3066\" target=\"_blank\" rel=\"noopener\">FortiGate\u306e\u9001\u4fe1\u5143NAT\/\u5b9b\u5148NAT\u8a2d\u5b9a\u306b\u3064\u3044\u3066<\/a><\/p>\n<p>\u30dd\u30fc\u30c8\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0\u3092\u6709\u52b9\u306b\u3057\u3066\u3044\u306a\u3044\u72b6\u614b\u3067VirtualIP\u3092\u6709\u52b9\u3055\u308c\u3066\u3044\u308b\u3068\u3001\u30de\u30c3\u30d7\u3055\u308c\u308bIP\u304c\u9001\u4fe1\u5143\u306e\u3068\u304d\u5916\u90e8IP\u3078NAT\u304c\u304b\u304b\u308b\u3002<\/p>\n<p>\u30ed\u30b0\u53ce\u96c6\u7528\u30b5\u30fc\u30d0\u3078\u306e\u901a\u4fe1\u304c\u5fc5\u8981\u306b\u306a\u3063\u305f\u6642\u306b\u3001\u3053\u308c\u3092\u8003\u616e\u3057\u3066\u3044\u306a\u304b\u3063\u305f\u3002<\/p>\n<p>\u300c\u5225\u306b\u30ed\u30b0\u53ce\u96c6\u7528\u30b5\u30fc\u30d0\u306e\u8a31\u53efIP\u8a2d\u5b9a\u3092\u4e0a\u53f8\u306b\u5909\u3048\u3066\u3082\u3089\u3048\u3070\u3044\u3044\u300d\u3068\u3001\u3044\u3064\u3082\u306a\u3089\u601d\u3063\u305f\u304b\u3082\u3057\u308c\u306a\u3044\u3002<\/p>\n<p>\u3057\u304b\u3057\u3001\u304a\u9858\u3044\u3059\u308b\u76f8\u624b\u304c\u60aa\u3044\u3002<br \/>\n\u4f1a\u8b70\u3084\u8cc7\u6599\u306e\u6e96\u5099\u306b\u5fd9\u3057\u3044\u306a\u304b\u3001\u3053\u3093\u306a\u81ea\u5206\u306e\u51e1\u3005\u30df\u30b9\u306e\u3057\u308a\u306c\u3050\u3044\u3092\u3057\u3066\u3082\u3089\u3046\u306e\u306f\u5927\u5909\u306b\u6050\u7e2e\u3067\u3042\u308b\u3002<\/p>\n<p>\u307e\u305f\u3001\u300c\u3053\u3093\u306a\u4ed5\u69d8\u306b\u3064\u3044\u3066\u3082\u77e5\u3089\u306a\u304b\u3063\u305f\u300d\u3068\u601d\u308f\u308c\u308b\u306e\u304c\u3042\u307e\u308a\u306b\u3082\u6065\u305a\u304b\u3057\u304f\u3001\u6b63\u76f4\u8ab0\u306b\u3082\u8a00\u3044\u305f\u304f\u306a\u304b\u3063\u305f\u3002<br \/>\n\u793e\u5185\u3067\u3082\u3057\u3070\u3057\u3070\u8a71\u306b\u51fa\u3066\u304f\u308b\u4ed5\u69d8\u3067\u3042\u308b\u3057\u3001\u79c1\u4ee5\u5916\u306e\u540c\u50da\u304c\u3053\u308c\u306b\u8a72\u5f53\u3059\u308b\u4e8b\u8c61\u306b\u793e\u5185\u3067\u906d\u9047\u3057\u305f\u6642\u306b\u306f\u3053\u306e\u4ed5\u69d8\u306b\u3064\u3044\u3066\u306e\u77e5\u8b58\u3092\u3072\u3051\u3089\u304b\u3057\u305f\u3053\u3068\u3082\u3042\u308b\u3002<\/p>\n<p>\u300c\u3053\u306e\u4ed5\u69d8\u306fFortiGate\u3092\u89e6\u308b\u3046\u3048\u3067\u3082\u62bc\u3055\u3048\u3066\u304a\u304b\u306a\u304d\u3083\u306d\u300d\u3084\u300c\u3053\u306e\u4ed5\u69d8\u306f\u5927\u4e8b\u3060\u304b\u3089\u899a\u3048\u3066\u304a\u3053\u3046\u306d\u300d\u3001\u300c\u3053\u306e\u8a71\u3001\u30de\u30a8\u30cb\u30e2\u30a2\u30c3\u30bf\u30b8\u30e3\u30f3\u300d\u300c\u30bd\u30ec\u30b3\u30b3\u30ce\u30e6\u30fc\u30a2\u30fc\u30eb\u30a8\u30eb\u30cb\u30ab\u30a4\u30c6\u30a2\u30eb\u30e8\u300d\u300c\u30ca\u2026<\/p>\n<p>\u9ad8\u901f\u3067\u3053\u306e\u4ed5\u69d8\u306b\u95a2\u3059\u308b\u8a18\u61b6\u304c\u3088\u307f\u304c\u3048\u3063\u3066\u304f\u308b\u3002<br \/>\n\u307e\u305a\u3044\u3001\u79c1\u304c\u3053\u306e\u4ed5\u69d8\u306b\u3064\u3044\u3066\u77e5\u3089\u306a\u3044\u3068\u601d\u308f\u308c\u308b\u306e\u306f\u975e\u5e38\u306b\u307e\u305a\u3044\u3002<\/p>\n<p>\u4e0a\u53f8\u306e\u696d\u52d9\u8ca0\u8377\u3092\u5897\u3084\u3055\u305a\u3001\u307e\u305f\u793e\u5185\u306b\u304a\u3051\u308b\u79c1\u3078\u306e\u8a55\u4fa1\u3092\u7dad\u6301\u3059\u308b\u3079\u304f192.168.100.203\u3092\u9001\u4fe1\u5143IP\u306b\u3057\u3066\u3001\u30ed\u30b0\u53ce\u96c6\u7528\u30b5\u30fc\u30d0\u3078\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u308b\u3088\u3046\u306bFortiGate\u306e\u8a2d\u5b9a\u5909\u66f4\u3092\u884c\u3063\u305f\u3002<\/p>\n<p>IP\u30d7\u30fc\u30eb\u306b\u300c192.168.100.203\u300d\u3092\u4f5c\u6210\u3057\u3001\u5916\u629c\u3051\u7528\u306eFortiGate\u306e\u30dd\u30ea\u30b7\u30fc\u306e\u9001\u4fe1\u5143NAT\u8a2d\u5b9a\u306b\u7d10\u3065\u3051\u308b\u3002<br \/>\n\u30ed\u30b0\u53ce\u96c6\u7528\u30b5\u30fc\u30d0\u306b\u3066\u30ed\u30b0\u304c\u53d6\u5f97\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u305f\u3002<br \/>\nFortiGate\u306e\u30ed\u30b0\u3067\u3082\u3001\u60f3\u5b9a\u901a\u308a\u9001\u4fe1\u5143NAT\u3055\u308c\u3066\u3044\u305f\u3002\u3088\u3057\u3001\u3053\u308c\u3067\u4f55\u4e8b\u3082\u306a\u304b\u3063\u305f\u3053\u3068\u306b\u3067\u304d\u308b\u3002<\/p>\n<p>\u4e00\u6669\u5bdd\u3066\u3001\u4f1a\u793e\u306e\u5e2d\u306b\u3064\u3044\u305f\u3068\u304d\u9f3b\u3092\u89e6\u3063\u305f\u3089\u3001\u9f3b\u304c\u77ed\u304f\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u306b\u6c17\u3065\u3044\u305f\u3002\u3069\u3046\u3084\u3089\u4eba\u9593\u306b\u623b\u308c\u305f\u3089\u3057\u3044\u3002<\/p>\n<h2><span class=\"ez-toc-section\" id=\"%E3%81%BE%E3%81%A8%E3%82%81\"><\/span>\u307e\u3068\u3081<span 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