{"id":18131,"date":"2025-05-28T19:29:03","date_gmt":"2025-05-28T11:29:03","guid":{"rendered":"https:\/\/www.luleey.com\/?p=18131"},"modified":"2025-06-22T12:48:31","modified_gmt":"2025-06-22T04:48:31","slug":"what-is-igmp-snooping-and-igmp-proxy%ef%bc%9fhow-does-it-optimize-network-performance","status":"publish","type":"post","link":"https:\/\/www.luleey.com\/ja\/what-is-igmp-snooping-and-igmp-proxy%ef%bc%9fhow-does-it-optimize-network-performance\/","title":{"rendered":"IGMP\u30b9\u30cc\u30fc\u30d4\u30f3\u30b0\u3068IGMP\u30d7\u30ed\u30ad\u30b7\u3068\u306f\uff1f"},"content":{"rendered":"<h2 id=\"understanding-igmp-snooping-the-basics\" class=\"wp-block-heading\">\u7406\u89e3\u3059\u308b <a style=\"color: #FF6A00;\" target=\"_blank\" href=\"https:\/\/www.luleey.com\/ja\/tag\/igmp-snooping\/\" title=\"IGMP Snooping \u306e\u6295\u7a3f\u3092\u3059\u3079\u3066\u8868\u793a\">IGMP\u30b9\u30cc\u30fc\u30d4\u30f3\u30b0<\/a>:\u57fa\u672c<\/h2>\n\n\n\n<p id=\"wd-5a41d64d\" class=\"wp-block-wd-paragraph\">IGMP\u30b9\u30cc\u30fc\u30d4\u30f3\u30b0\uff08Internet Group Management Protocol Snooping\uff09\u306f\u3001\u30ec\u30a4\u30e4\u30fc2\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u30fb\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u7ba1\u7406\u3059\u308b\u305f\u3081\u306e\u91cd\u8981\u306a\u30e1\u30ab\u30cb\u30ba\u30e0\u3067\u3059\u3002\u30b9\u30a4\u30c3\u30c1\u3084\u30d6\u30ea\u30c3\u30b8\u3067\u52d5\u4f5c\u3057&nbsp;<strong>IGMP\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u76e3\u8996\u3059\u308b<\/strong>&nbsp;\u30db\u30b9\u30c8\u3068\u30eb\u30fc\u30bf\u30fc\u9593\u3067\u4ea4\u63db\u3055\u308c\u3001\u3069\u306e\u30c7\u30d0\u30a4\u30b9\u304c\u7279\u5b9a\u306e\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u30b0\u30eb\u30fc\u30d7\u306b\u5c5e\u3057\u3066\u3044\u308b\u304b\u3092\u8ffd\u8de1\u3059\u308b\u3002\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u30d1\u30b1\u30c3\u30c8\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u6ea2\u308c\u308b\u5f93\u6765\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u3068\u306f\u7570\u306a\u308a\u3001IGMP\u30b9\u30cc\u30fc\u30d4\u30f3\u30b0\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u7279\u5fb4\u304c\u3042\u308a\u307e\u3059\u3002&nbsp;<strong>\u30a2\u30af\u30c6\u30a3\u30d6\u306a\u30b0\u30eb\u30fc\u30d7\u30e1\u30f3\u30d0\u30fc\u306e\u3044\u308b\u30dd\u30fc\u30c8\u306b\u306e\u307f\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u8ee2\u9001\u3059\u308b<\/strong>, \u5e2f\u57df\u5e45\u306e\u7121\u99c4\u3092\u5927\u5e45\u306b\u524a\u6e1b\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u52b9\u7387\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002.<\/p>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<h4 id=\"wd-ef832fa6\" class=\"wp-block-wd-title title\">IGMP\u30b9\u30cc\u30fc\u30d4\u30f3\u30b0\u306e\u4ed5\u7d44\u307f\uff1a\u30b9\u30c6\u30c3\u30d7\u30fb\u30d0\u30a4\u30fb\u30b9\u30c6\u30c3\u30d7<\/h4>\n<\/div>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>IGMP\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u30ea\u30b9\u30cb\u30f3\u30b0<\/strong>:\u30db\u30b9\u30c8\u304c\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u30b0\u30eb\u30fc\u30d7\u306b\u53c2\u52a0\u3059\u308b\u305f\u3081\u306bIGMP\u30e1\u30f3\u30d0\u30fc\u30b7\u30c3\u30d7\u30ec\u30dd\u30fc\u30c8\u3092\u9001\u4fe1\u3059\u308b\u3068\u3001\u30b9\u30a4\u30c3\u30c1\u306f\u305d\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u300c\u30b9\u30cc\u30fc\u30d7\u300d\u3057\u3001\u30db\u30b9\u30c8\u306b\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u30dd\u30fc\u30c8\u3092\u8a18\u9332\u3059\u308b\u3002.<\/li>\n\n\n\n<li><strong>\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0\u30fb\u30c6\u30fc\u30d6\u30eb\u306e\u69cb\u7bc9<\/strong>:\u30b9\u30a4\u30c3\u30c1\u306f\u3001\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8MAC\u30a2\u30c9\u30ec\u30b9\u3092\u7279\u5b9a\u306e\u30dd\u30fc\u30c8\u306b\u30de\u30c3\u30d4\u30f3\u30b0\u3057\u3001\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306e\u9001\u4fe1\u5148\u3092\u6307\u793a\u3059\u308b\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3059\u308b\u3002.<\/li>\n\n\n\n<li><strong>\u30bf\u30fc\u30b2\u30c3\u30c8\u8ee2\u9001<\/strong>:\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u30d1\u30b1\u30c3\u30c8\u3092\u3059\u3079\u3066\u306e\u30dd\u30fc\u30c8\u306b\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u30b0\u30eb\u30fc\u30d7\u306b\u95a2\u9023\u3059\u308b\u30dd\u30fc\u30c8\u306b\u306e\u307f\u914d\u4fe1\u3059\u308b\u3053\u3068\u3067\u3001\u4e0d\u8981\u306a\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u307e\u3059\u3002.<\/li>\n<\/ol>\n\n\n\n<p id=\"wd-78a24808\" class=\"wp-block-wd-paragraph\"><em>\u4f8b<\/em>:\u4f01\u696d\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306f\u3001\u30d3\u30c7\u30aa\u4f1a\u8b70\u306e\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u30b9\u30c8\u30ea\u30fc\u30e0\u306b10\u53f0\u306e\u30c7\u30d0\u30a4\u30b9\u3057\u304b\u30b5\u30d6\u30b9\u30af\u30e9\u30a4\u30d6\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u3001IGMP\u30b9\u30cc\u30fc\u30d4\u30f3\u30b0\u306f\u3001\u30b9\u30c8\u30ea\u30fc\u30e0\u304c\u305d\u306e10\u53f0\u306e\u30dd\u30fc\u30c8\u306b\u3057\u304b\u5230\u9054\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h4 id=\"wd-b37f1b0f\" class=\"wp-block-wd-title title\">IGMP\u30d0\u30fc\u30b8\u30e7\u30f3\uff08v1\u3001v2\u3001v3\uff09\u306e\u4e3b\u306a\u9055\u3044<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u7279\u5fb4<\/th><th>IGMPv1<\/th><th>IGMPv2<\/th><th>IGMPv3<\/th><\/tr><\/thead><tbody><tr><td><strong>\u30af\u30a8\u30ea\u30fc\u306e\u4ed5\u7d44\u307f<\/strong><\/td><td>\u4e00\u822c\u7684\u306a\u554f\u3044\u5408\u308f\u305b\u306e\u307f<\/td><td>\u4e00\u822c\u7684\uff0b\u5177\u4f53\u7684<\/td><td>\u4e00\u822c\u7684\u306a\u3082\u306e\u3001\u7279\u5b9a\u306e\u3082\u306e\u3001\u30bd\u30fc\u30b9\u56fa\u6709\u306e\u3082\u306e<\/td><\/tr><tr><td><strong>\u8131\u9000\u30b0\u30eb\u30fc\u30d7<\/strong><\/td><td>\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u660e\u78ba\u306b\u6b8b\u3055\u306a\u3044<\/td><td>\u660e\u793a\u7684\u306a\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u6b8b\u3059<\/td><td>\u5831\u544a\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u6b8b\u3059<\/td><\/tr><tr><td><strong>\u30bd\u30fc\u30b9\u30fb\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0<\/strong><\/td><td>\u30b5\u30dd\u30fc\u30c8\u306a\u3057<\/td><td>\u30b5\u30dd\u30fc\u30c8\u306a\u3057<\/td><td>\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\u306b\u3088\u308b\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3092\u30b5\u30dd\u30fc\u30c8<\/td><\/tr><tr><td><strong>\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u30e2\u30c7\u30eb<\/strong><\/td><td>ASM\uff08SSM\u30de\u30c3\u30d4\u30f3\u30b0\u304c\u5fc5\u8981\uff09<\/td><td>ASM\uff08SSM\u30de\u30c3\u30d4\u30f3\u30b0\u304c\u5fc5\u8981\uff09<\/td><td>ASM\u304a\u3088\u3073SSM\u30cd\u30a4\u30c6\u30a3\u30d6<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>IGMPv1<\/strong>:\u6700\u3082\u30b7\u30f3\u30d7\u30eb\u306a\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u3001\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u6b8b\u3059\u3053\u3068\u3084\u7279\u5b9a\u306e\u30b0\u30eb\u30fc\u30d7\u3078\u306e\u554f\u3044\u5408\u308f\u305b\u304c\u306a\u3044\u3002.<\/li>\n\n\n\n<li><strong>IGMPv2<\/strong>:\u30b0\u30eb\u30fc\u30d7\u30e1\u30f3\u30d0\u30fc\u30b7\u30c3\u30d7\u306e\u8fc5\u901f\u306a\u66f4\u65b0\u306e\u305f\u3081\u306b\u3001\u30ea\u30fc\u30d6\u30e1\u30c3\u30bb\u30fc\u30b8\u3068\u7279\u5b9a\u306e\u30b0\u30eb\u30fc\u30d7\u30af\u30a8\u30ea\u3092\u8ffd\u52a0\u3002.<\/li>\n\n\n\n<li><strong>IGMPv3<\/strong>:\u9ad8\u5ea6\u306a\u6a5f\u80fd-\u30db\u30b9\u30c8\u304c\u30b0\u30eb\u30fc\u30d7\u30a2\u30c9\u30ec\u30b9\u3068\u30bd\u30fc\u30b9\u30a2\u30c9\u30ec\u30b9\u306e\u4e21\u65b9\u3092\u6307\u5b9a\u3067\u304d\u308b\u305f\u3081\u3001\u30bb\u30ad\u30e5\u30a2\u306a\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u74b0\u5883\u306b\u6700\u9069\u3002.<\/li>\n<\/ul>\n\n\n\n<h4 id=\"wd-010ceed6\" class=\"wp-block-wd-title title\">IGMP\u30b9\u30cc\u30fc\u30d4\u30f3\u30b0\u5bfeIGMP\u30b9\u30cc\u30fc\u30d4\u30f3\u30b0. <a style=\"color: #FF6A00;\" target=\"_blank\" href=\"https:\/\/www.luleey.com\/ja\/tag\/igmp-proxy\/\" title=\"IGMP Proxy \u306e\u6295\u7a3f\u3092\u3059\u3079\u3066\u8868\u793a\">IGMP\u30d7\u30ed\u30ad\u30b7<\/a>:\u30b3\u30a2\u30fb\u30c7\u30a3\u30b9\u30c6\u30a3\u30f3\u30af\u30b7\u30e7\u30f3<\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30a2\u30b9\u30da\u30af\u30c8<\/th><th>IGMP\u30b9\u30cc\u30fc\u30d4\u30f3\u30b0<\/th><th>IGMP\u30d7\u30ed\u30ad\u30b7<\/th><\/tr><\/thead><tbody><tr><td><strong>\u30c7\u30d7\u30ed\u30a4\u30e1\u30f3\u30c8\u30fb\u30ec\u30a4\u30e4\u30fc<\/strong><\/td><td>\u30ec\u30a4\u30e4\u30fc2\u30b9\u30a4\u30c3\u30c1<\/td><td>\u30a8\u30c3\u30b8\u30c7\u30d0\u30a4\u30b9\uff08\u30ec\u30a4\u30e4\u30fc2\/3\uff09<\/td><\/tr><tr><td><strong>\u6a5f\u80fd<\/strong><\/td><td>\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u8ee2\u9001\u3059\u308b\u305f\u3081\u306bIGMP\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u76e3\u8996\u3059\u308b<\/td><td>\u30db\u30b9\u30c8\u3068\u30eb\u30fc\u30bf\u30fc\u306e\u4ef2\u4ecb\u5f79<\/td><\/tr><tr><td><strong>\u30e1\u30c3\u30bb\u30fc\u30b8\u30fb\u30cf\u30f3\u30c9\u30ea\u30f3\u30b0<\/strong><\/td><td>\u53d7\u52d5\u7684\u306b\u8033\u3092\u50be\u3051\u3001\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u308b<\/td><td>\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u5909\u66f4\uff0f\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\uff08\u4f8b\uff1a\u672a\u627f\u8a8d\u30b0\u30eb\u30fc\u30d7\u306e\u30d6\u30ed\u30c3\u30af\uff09<\/td><\/tr><tr><td><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3<\/strong><\/td><td>\u5e2f\u57df\u5e45\u306e\u7121\u99c4\u3092\u524a\u6e1b<\/td><td>\u5185\u90e8\u30c8\u30dd\u30ed\u30b8\u30fc\u306e\u975e\u8868\u793a\u3001\u30a2\u30af\u30bb\u30b9\u30dd\u30ea\u30b7\u30fc\u306e\u5f37\u5236<\/td><\/tr><tr><td><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3078\u306e\u5f71\u97ff<\/strong><\/td><td>\u4f4e\u3044\uff08\u6700\u5c0f\u9650\u306e\u51e6\u7406\uff09<\/td><td>\u30e1\u30c3\u30bb\u30fc\u30b8\u51e6\u7406\u306b\u3088\u308b\u308f\u305a\u304b\u306a\u5f85\u3061\u6642\u9593<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p id=\"wd-da38f878\" class=\"wp-block-wd-paragraph\"><em>\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/em>:ISP\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a8\u30c3\u30b8\u306bIGMP\u30d7\u30ed\u30ad\u30b7\u3092\u914d\u5099\u3057\u3066\u3001\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8TV\u30b9\u30c8\u30ea\u30fc\u30e0\u3092\u5236\u5fa1\u3057\u3001\u672a\u627f\u8a8d\u306e\u52a0\u5165\u8005\u3092\u30d6\u30ed\u30c3\u30af\u3059\u308b\u4e00\u65b9\u3001\u30ed\u30fc\u30ab\u30eb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u3067IGMP\u30b9\u30cc\u30fc\u30d4\u30f3\u30b0\u3092\u4f7f\u7528\u3057\u3066\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u914d\u4fe1\u3092\u6700\u9069\u5316\u3059\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u3002.<\/p>\n\n\n\n<h4 id=\"wd-7847d1cb\" class=\"wp-block-wd-title title\">IGMP\u30b9\u30cc\u30fc\u30d4\u30f3\u30b0\u304c\u6700\u65b0\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u91cd\u8981\u306a\u7406\u7531<\/h4>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u5e2f\u57df\u5e45\u306e\u6700\u9069\u5316<\/strong>:\u5927\u91cf\u306e\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\uff08\u30d3\u30c7\u30aa\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u3001VoIP\u3001IoT\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u306a\u3069\uff09\u3092\u6271\u3046\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u4e0d\u53ef\u6b20\u3002.<\/li>\n\n\n\n<li><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5f37\u5316<\/strong>:\u8a31\u53ef\u3055\u308c\u305f\u30dd\u30fc\u30c8\u306b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u5236\u9650\u3059\u308b\u3053\u3068\u3067\u3001\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u306e\u76d7\u8074\u3092\u9632\u3050\u3002.<\/li>\n\n\n\n<li><strong>\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3<\/strong>:\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3092\u4f4e\u4e0b\u3055\u305b\u308b\u3053\u3068\u306a\u304f\u3001\u3088\u308a\u591a\u304f\u306e\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u30b5\u30dd\u30fc\u30c8\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3002.<\/li>\n\n\n\n<li><strong>\u30b3\u30b9\u30c8\u52b9\u7387<\/strong>:\u4e0d\u5fc5\u8981\u306a\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u30d5\u30e9\u30c3\u30c7\u30a3\u30f3\u30b0\u3092\u6392\u9664\u3059\u308b\u3053\u3068\u3067\u3001\u5e2f\u57df\u5e45\u30b3\u30b9\u30c8\u3092\u524a\u6e1b\u3002.<\/li>\n<\/ol>\n\n\n\n<h4 id=\"wd-d333fcbe\" class=\"wp-block-wd-title title\">IGMP\u30b9\u30cc\u30fc\u30d4\u30f3\u30b0\u306e\u5b9f\u88c5\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u3059\u3079\u3066\u306e\u30ec\u30a4\u30e4\u30fc2\u30b9\u30a4\u30c3\u30c1\u3067\u6709\u52b9<\/strong>&nbsp;\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u5bfe\u5fdcVLAN\u3067\u3002.<\/li>\n\n\n\n<li><strong>\u30eb\u30fc\u30bf\u30fc\u30dd\u30fc\u30c8\u306e\u8a2d\u5b9a<\/strong>&nbsp;\u30b9\u30a4\u30c3\u30c1\u304c\u30a2\u30c3\u30d7\u30b9\u30c8\u30ea\u30fc\u30e0\u30fb\u30eb\u30fc\u30bf\u30fc\u3092\u8a8d\u8b58\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u3002.<\/li>\n\n\n\n<li><strong>\u30a8\u30fc\u30b8\u30f3\u30b0\u30bf\u30a4\u30de\u30fc\u306e\u8a2d\u5b9a<\/strong>&nbsp;\u30e1\u30f3\u30d0\u30fc\u30b7\u30c3\u30d7\u3092\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3059\u308b\u305f\u3081\u306e\u9069\u5207\u306a\u79d2\u6570\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\uff1a260\u79d2\uff09\u3002.<\/li>\n\n\n\n<li><strong>\u30e2\u30cb\u30bf\u30fc\u30c6\u30fc\u30d6\u30eb\u306e\u30b5\u30a4\u30ba<\/strong>&nbsp;\u5927\u898f\u6a21\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u304a\u3051\u308b\u30ea\u30bd\u30fc\u30b9\u306e\u67af\u6e07\u3092\u907f\u3051\u308b\u305f\u3081\u3067\u3042\u308b\u3002.<\/li>\n<\/ul>\n\n\n\n<h4 id=\"wd-c9d39aa5\" class=\"wp-block-wd-title title\">\u7d50\u8ad6<\/h4>\n\n\n\n<p id=\"wd-6eb02542\" class=\"wp-block-wd-paragraph\">IGMP\u30b9\u30cc\u30fc\u30d4\u30f3\u30b0\u306f\u3001\u30ec\u30a4\u30e42\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u3068\u30ec\u30a4\u30e43\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u30ae\u30e3\u30c3\u30d7\u3092\u57cb\u3081\u308b\u3001\u6700\u65b0\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u57fa\u76e4\u6280\u8853\u3067\u3059\u3002\u30de\u30eb\u30c1\u30ad\u30e3\u30b9\u30c8\u30fb\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u30a4\u30f3\u30c6\u30ea\u30b8\u30a7\u30f3\u30c8\u306b\u8a98\u5c0e\u3059\u308b\u3053\u3068\u3067\u3001\u52b9\u7387\u6027\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3001\u30b9\u30b1\u30fc\u30e9\u30d3\u30ea\u30c6\u30a3\u306e\u30d0\u30e9\u30f3\u30b9\u3092\u3068\u308a\u3001\u4f01\u696d\u306e\u30d3\u30c7\u30aa\u4f1a\u8b70\u304b\u3089\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u30fb\u30b5\u30fc\u30d3\u30b9\u307e\u3067\u3001\u3042\u3089\u3086\u308b\u3082\u306e\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u6b63\u78ba\u306a\u30bd\u30fc\u30b9\u30fb\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u306e\u305f\u3081\u306bIGMPv3\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u3082\u3001\u30a8\u30c3\u30b8\u30fb\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u305f\u3081\u306bIGMP 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