{"id":5578,"date":"2025-08-09T19:41:51","date_gmt":"2025-08-09T10:41:51","guid":{"rendered":"https:\/\/sky-peace.net\/?p=5578"},"modified":"2025-08-09T19:41:51","modified_gmt":"2025-08-09T10:41:51","slug":"mac-address","status":"publish","type":"post","link":"https:\/\/sky-peace.net\/certified\/mac-address\/","title":{"rendered":"MAC\u30a2\u30c9\u30ec\u30b9\u306e\u3059\u3079\u3066\uff1aARP\u3001ICMP\u3001ping\u3001IPv6(NDP)\u307e\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u57fa\u790e\u3092\u4f53\u7cfb\u7684\u306b\u5b66\u3076"},"content":{"rendered":"<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4e16\u754c\u3092\u65c5\u3059\u308b\u30c7\u30fc\u30bf\u306b\u3068\u3063\u3066\u3001\u300c\u4f4f\u6240\u300d\u306b\u3042\u305f\u308bIP\u30a2\u30c9\u30ec\u30b9\u306f\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u30c7\u30fc\u30bf\u304c\u6700\u7d42\u7684\u306a\u76ee\u7684\u5730\u3001\u3064\u307e\u308a\u3042\u306a\u305f\u306e\u30d1\u30bd\u30b3\u30f3\u3084\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u306b\u305f\u3069\u308a\u7740\u304f\u306b\u306f\u3001\u3082\u3046\u4e00\u3064\u306e\u91cd\u8981\u306a\u30a2\u30c9\u30ec\u30b9\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002\u305d\u308c\u304c\u3001\u6a5f\u5668\u4e00\u53f0\u4e00\u53f0\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u305f\u56fa\u6709\u306e\u8b58\u5225\u756a\u53f7\u3001\u300cMAC\u30a2\u30c9\u30ec\u30b9\u300d\u3067\u3059\u3002<\/p>\n<p>\u300cIP\u30a2\u30c9\u30ec\u30b9\u304c\u3042\u308c\u3070\u901a\u4fe1\u3067\u304d\u308b\u3093\u3058\u3083\u306a\u3044\u306e\uff1f\u306a\u305cMAC\u30a2\u30c9\u30ec\u30b9\u307e\u3067\u5fc5\u8981\u306a\u306e\uff1f\u300d<br \/>\n\u300cARP\uff08\u30a2\u30fc\u30d7\uff09\u3063\u3066\u3088\u304f\u805e\u304f\u3051\u3069\u3001\u4f55\u306e\u305f\u3081\u306b\u3042\u308b\u306e\uff1f\u300d<br \/>\n\u300cping\u30b3\u30de\u30f3\u30c9\u3067\u758e\u901a\u78ba\u8a8d\u306f\u3059\u308b\u3051\u3069\u3001\u305d\u306e\u88cf\u5074\u3067\u4f55\u304c\u8d77\u304d\u3066\u3044\u308b\u3093\u3060\u308d\u3046\uff1f\u300d<\/p>\n<p>\u57fa\u672c\u60c5\u5831\u6280\u8853\u8005\u8a66\u9a13\u3084\u5fdc\u7528\u60c5\u5831\u6280\u8853\u8005\u8a66\u9a13\u306e\u5b66\u7fd2\u3092\u9032\u3081\u308b\u4e2d\u3067\u3001\u3053\u3046\u3057\u305f\u7591\u554f\u306b\u7a81\u304d\u5f53\u305f\u3063\u305f\u65b9\u3082\u591a\u3044\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002\u3053\u308c\u3089\u306e\u6280\u8853\u306f\u3001\u79c1\u305f\u3061\u304c\u666e\u6bb5\u4f55\u6c17\u306a\u304f\u4f7f\u3063\u3066\u3044\u308b\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u901a\u4fe1\u306e\u6839\u5e79\u3092\u652f\u3048\u308b\u3001\u975e\u5e38\u306b\u91cd\u8981\u306a\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u6839\u5e79\u3092\u306a\u3059MAC\u30a2\u30c9\u30ec\u30b9\u306e\u5f79\u5272\u304b\u3089\u3001IP\u30a2\u30c9\u30ec\u30b9\u3068MAC\u30a2\u30c9\u30ec\u30b9\u3092\u7d50\u3073\u3064\u3051\u308b\u300cARP\u300d\u306e\u8a73\u3057\u3044\u4ed5\u7d44\u307f\u3001\u305d\u3057\u3066\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u306b\u6b20\u304b\u305b\u306a\u3044\u300cICMP\u300d\u3068ping\u30b3\u30de\u30f3\u30c9\u306e\u95a2\u4fc2\u307e\u3067\u3001\u5c02\u9580\u7528\u8a9e\u3092\u4e00\u3064\u3072\u3068\u3064\u4e01\u5be7\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u8eab\u8fd1\u306a\u4f8b\u3048\u3084\u56f3\u89e3\u3092\u8c4a\u5bcc\u306b\u4f7f\u3044\u3001\u300c\u306a\u305c\u305d\u306e\u6280\u8853\u304c\u5fc5\u8981\u306a\u306e\u304b\u300d\u3068\u3044\u3046\u8ad6\u7406\u7684\u306a\u3064\u306a\u304c\u308a\u3092\u91cd\u8996\u3057\u3066\u8aac\u660e\u3092\u9032\u3081\u308b\u306e\u3067\u3001\u3053\u308c\u307e\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u82e6\u624b\u610f\u8b58\u304c\u3042\u3063\u305f\u65b9\u3067\u3082\u3001\u304d\u3063\u3068\u7406\u89e3\u304c\u6df1\u307e\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u307f\u7d42\u3048\u308b\u9803\u306b\u306f\u3001\u70b9\u3068\u70b9\u3060\u3063\u305f\u77e5\u8b58\u304c\u7dda\u3067\u3064\u306a\u304c\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u901a\u4fe1\u304c\u3088\u308a\u660e\u78ba\u306b\u30a4\u30e1\u30fc\u30b8\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<h2>MAC\u30a2\u30c9\u30ec\u30b9\u3068\u306f\uff1f\u2502IP\u30a2\u30c9\u30ec\u30b9\u3068\u306e\u9055\u3044\u3068\u30d9\u30f3\u30c0\u30fcID\u306e\u4ed5\u7d44\u307f<\/h2>\n<p>\u79c1\u305f\u3061\u304c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3092\u4f7f\u3046\u3068\u304d\u3001\u901a\u4fe1\u76f8\u624b\u3092\u7279\u5b9a\u3059\u308b\u305f\u3081\u306b\u300cIP\u30a2\u30c9\u30ec\u30b9\u300d\u304c\u4f7f\u308f\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e\u300c\u4f4f\u6240\u300d\u306b\u4f8b\u3048\u3089\u308c\u3001\u4e16\u754c\u4e2d\u306e\u3069\u3053\u306b\u30c7\u30fc\u30bf\u5c4a\u3051\u308b\u304b\u3092\u793a\u3057\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u30c7\u30fc\u30bf\u304c\u76ee\u7684\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08\u4f8b\u3048\u3070\u3001\u3042\u306a\u305f\u306e\u5bb6\u306eWi-Fi\u30eb\u30fc\u30bf\u30fc\u306e\u7bc4\u56f2\u5185\uff09\u306b\u5230\u7740\u3057\u305f\u3060\u3051\u3067\u306f\u3001\u6700\u7d42\u7684\u306a\u5b9b\u5148\u3067\u3042\u308b\u3042\u306a\u305f\u306e\u30d1\u30bd\u30b3\u30f3\u3084\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u306b\u306f\u5c4a\u304d\u307e\u305b\u3093\u3002<\/p>\n<p>\u3053\u3053\u3067\u767b\u5834\u3059\u308b\u306e\u304c<strong>MAC\u30a2\u30c9\u30ec\u30b9\uff08Media Access Control address\uff09<\/strong>\u3067\u3059\u3002<\/p>\n<p>MAC\u30a2\u30c9\u30ec\u30b9\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3059\u308b\u3059\u3079\u3066\u306e\u6a5f\u5668\uff08\u30d1\u30bd\u30b3\u30f3\u3001\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3001\u30b2\u30fc\u30e0\u6a5f\u3001\u30eb\u30fc\u30bf\u30fc\u306a\u3069\uff09\u306b\u3001\u88fd\u9020\u6bb5\u968e\u3067\u5272\u308a\u5f53\u3066\u3089\u308c\u308b<strong>\u4e16\u754c\u3067\u552f\u4e00\u306e\u8b58\u5225\u756a\u53f7<\/strong>\u3067\u3059\u3002IP\u30a2\u30c9\u30ec\u30b9\u304c\u5909\u66f4\u53ef\u80fd\u306a\u300c\u4f4f\u6240\u300d\u3060\u3068\u3059\u308c\u3070\u3001MAC\u30a2\u30c9\u30ec\u30b9\u306f\u5909\u66f4\u3067\u304d\u306a\u3044\u300c\u6a5f\u5668\u56fa\u6709\u306e\u80cc\u756a\u53f7\u300d\u3084\u300c\u30de\u30a4\u30ca\u30f3\u30d0\u30fc\u300d\u306b\u4f8b\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>IP\u30a2\u30c9\u30ec\u30b9\uff08\u30ec\u30a4\u30e43\uff09<\/strong>: \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\uff08\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\uff09\u3067\u306e\u4f4f\u6240\u3002\u53ef\u5909\u7684\u3002<\/li>\n<li><strong>MAC\u30a2\u30c9\u30ec\u30b9\uff08\u30ec\u30a4\u30e42\uff09<\/strong>: \u540c\u4e00\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u3067\u306e\u6a5f\u5668\u306e\u8b58\u5225\u756a\u53f7\u3002\u56fa\u5b9a\u7684\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u3048\u3070\u3001\u3042\u306a\u305f\u304c\u53cb\u4eba\u306b\u624b\u7d19\u3092\u9001\u308b\u30b7\u30fc\u30f3\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002<br \/>\nIP\u30a2\u30c9\u30ec\u30b9\u306f\u300c\u3007\u3007\u770c\u3007\u3007\u5e02\u3007\u3007\u753a1-2-3\u300d\u3068\u3044\u3046<strong>\u4f4f\u6240<\/strong>\u3067\u3059\u3002\u90f5\u4fbf\u5c40\u54e1\u306f\u3053\u306e\u4f4f\u6240\u3092\u983c\u308a\u306b\u624b\u7d19\u3092\u5c4a\u3051\u307e\u3059\u3002<br \/>\n\u3057\u304b\u3057\u3001\u305d\u306e\u4f4f\u6240\u304c\u5927\u304d\u306a\u30de\u30f3\u30b7\u30e7\u30f3\u3060\u3063\u305f\u5834\u5408\u3001\u90f5\u4fbf\u5c40\u54e1\u306f\u300c101\u53f7\u5ba4\u306e\u7530\u4e2d\u3055\u3093\u300d\u3068\u3044\u3046<strong>\u90e8\u5c4b\u756a\u53f7\u3068\u540d\u524d<\/strong>\u307e\u3067\u78ba\u8a8d\u3057\u306a\u3044\u3068\u3001\u6b63\u78ba\u306b\u624b\u7d19\u3092\u6e21\u305b\u307e\u305b\u3093\u3002\u3053\u306e\u300c\u90e8\u5c4b\u756a\u53f7\u3068\u540d\u524d\u300d\u306b\u3042\u305f\u308b\u306e\u304cMAC\u30a2\u30c9\u30ec\u30b9\u3067\u3059\u3002\u540c\u3058Wi-Fi\u306b\u63a5\u7d9a\u3057\u3066\u3044\u308b\u8907\u6570\u306e\u6a5f\u5668\u306e\u4e2d\u304b\u3089\u3001\u7279\u5b9a\u306e1\u53f0\u3092\u6b63\u78ba\u306b\u8b58\u5225\u3059\u308b\u305f\u3081\u306b\u4f7f\u308f\u308c\u308b\u306e\u3067\u3059\u3002<\/p>\n<h3>MAC\u30a2\u30c9\u30ec\u30b9\u306e\u69cb\u9020\uff1a\u30d9\u30f3\u30c0\u30fcID\u3068\u56fa\u6709\u756a\u53f7<\/h3>\n<p>MAC\u30a2\u30c9\u30ec\u30b9\u306f\u901a\u5e38\u3001<code>00-1A-2B-3C-4D-5E<\/code> \u306e\u3088\u3046\u306b\u30012\u6841\u305a\u3064\u30cf\u30a4\u30d5\u30f3\u3084\u30b3\u30ed\u30f3\u3067\u533a\u5207\u3089\u308c\u305f12\u6841\u306e16\u9032\u6570\u3067\u8868\u73fe\u3055\u308c\u307e\u3059\u3002\u3053\u306e48\u30d3\u30c3\u30c8\u306e\u756a\u53f7\u306f\u3001\u5b9f\u306f2\u3064\u306e\u90e8\u5206\u306b\u5206\u304b\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ol>\n<li><strong>\u524d\u534a24\u30d3\u30c3\u30c8\uff08OUI: Organizationally Unique Identifier\uff09<\/strong>: IEEE\u3068\u3044\u3046\u7d44\u7e54\u306b\u3088\u3063\u3066\u7ba1\u7406\u30fb\u5272\u308a\u5f53\u3066\u3089\u308c\u308b<strong>\u30d9\u30f3\u30c0\u30fcID<\/strong>\u3002\u3069\u306e\u30e1\u30fc\u30ab\u30fc\uff08\u30d9\u30f3\u30c0\u30fc\uff09\u304c\u88fd\u9020\u3057\u305f\u6a5f\u5668\u304b\u3092\u793a\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u5f8c\u534a24\u30d3\u30c3\u30c8<\/strong>: \u5404\u30e1\u30fc\u30ab\u30fc\u304c\u88fd\u54c1\u3054\u3068\u306b\u5272\u308a\u5f53\u3066\u308b<strong>\u88fd\u54c1\u56fa\u6709\u306e\u30b7\u30ea\u30a2\u30eb\u756a\u53f7<\/strong>\u3002<\/li>\n<\/ol>\n<p>\u3064\u307e\u308a\u3001MAC\u30a2\u30c9\u30ec\u30b9\u306e\u524d\u534a\u90e8\u5206\u3092\u898b\u308c\u3070\u3001\u300c\u3053\u306e\u6a5f\u5668\u306fApple\u88fd\u3060\u306a\u300d\u300c\u3053\u308c\u306fNintendo\u88fd\u3060\u306a\u300d\u3068\u3044\u3046\u3053\u3068\u304c\u5224\u5225\u3067\u304d\u308b\u306e\u3067\u3059\u3002\u3053\u306e\u4ed5\u7d44\u307f\u306e\u304a\u304b\u3052\u3067\u3001\u4e16\u754c\u4e2d\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6a5f\u5668\u306eMAC\u30a2\u30c9\u30ec\u30b9\u304c\u91cd\u8907\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u4e00\u610f\u306b\u4fdd\u305f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<table>\n<caption>\u30d9\u30f3\u30c0\u30fcID (OUI) \u306e\u4f8b<\/caption>\n<thead>\n<tr>\n<th>\u30d9\u30f3\u30c0\u30fcID (OUI)<\/th>\n<th>\u30e1\u30fc\u30ab\u30fc\uff08\u4e00\u90e8\u4f8b\uff09<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><code>00:05:02<\/code><\/td>\n<td>Apple, Inc.<\/td>\n<\/tr>\n<tr>\n<td><code>CC:46:D6<\/code><\/td>\n<td>Cisco Systems, Inc.<\/td>\n<\/tr>\n<tr>\n<td><code>00:1C:0E<\/code><\/td>\n<td>Nintendo Co., Ltd.<\/td>\n<\/tr>\n<tr>\n<td><code>3C:5A:B4<\/code><\/td>\n<td>Google, Inc.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001MAC\u30a2\u30c9\u30ec\u30b9\u306f\u5358\u306a\u308b\u30e9\u30f3\u30c0\u30e0\u306a\u756a\u53f7\u3067\u306f\u306a\u304f\u3001IP\u30a2\u30c9\u30ec\u30b9\u3068\u9023\u643a\u3057\u3066\u6b63\u78ba\u306a\u30c7\u30fc\u30bf\u901a\u4fe1\u3092\u5b9f\u73fe\u3057\u3001\u305d\u306e\u51fa\u81ea\u60c5\u5831\u3082\u542b\u3080\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u6839\u5e79\u3092\u652f\u3048\u308b\u91cd\u8981\u306a\u8b58\u5225\u5b50\u306a\u306e\u3067\u3059\u3002<\/p>\n<h2>MAC\u30d8\u30c3\u30c0\u306e\u69cb\u9020\u3068\u5f79\u5272\u2502\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u30d5\u30ec\u30fc\u30e0\u3067\u30c7\u30fc\u30bf\u3092\u904b\u3076\u4ed5\u7d44\u307f<\/h2>\n<p>\u524d\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u3001MAC\u30a2\u30c9\u30ec\u30b9\u304c\u300c\u6a5f\u5668\u56fa\u6709\u306e\u80cc\u756a\u53f7\u300d\u3067\u3042\u308b\u3053\u3068\u3092\u5b66\u3073\u307e\u3057\u305f\u3002\u3067\u306f\u3001\u3053\u306e\u80cc\u756a\u53f7\u306f\u5b9f\u969b\u306e\u30c7\u30fc\u30bf\u901a\u4fe1\u3067\u3069\u306e\u3088\u3046\u306b\u4f7f\u308f\u308c\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u6d41\u308c\u308b\u30c7\u30fc\u30bf\u306f\u3001\u300c<strong>\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u30d5\u30ec\u30fc\u30e0<\/strong>\u300d\u3068\u3044\u3046\u5c0f\u3055\u306a\u8377\u7269\u306e\u3088\u3046\u306a\u5358\u4f4d\u306b\u5206\u5272\u3055\u308c\u3066\u904b\u3070\u308c\u307e\u3059\u3002\u305d\u3057\u3066\u3001\u3053\u306e\u8377\u7269\u306b\u8cbc\u3089\u308c\u308b\u300c\u5b9b\u540d\u30e9\u30d9\u30eb\u300d\u306e\u5f79\u5272\u3092\u679c\u305f\u3059\u306e\u304c<strong>MAC\u30d8\u30c3\u30c0<\/strong>\u3067\u3059\u3002<\/p>\n<p>\u9001\u4fe1\u3057\u305f\u3044\u30c7\u30fc\u30bf\uff08\u4f8b\u3048\u3070\u3001\u4e0a\u4f4d\u5c64\u3067\u3042\u308bIP\u5c64\u304b\u3089\u6e21\u3055\u308c\u305fIP\u30d1\u30b1\u30c3\u30c8\uff09\u304c\u3042\u308b\u3068\u3001\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\u3067\u305d\u306e\u524d\u5f8c\u306b\u5236\u5fa1\u60c5\u5831\u304c\u4ed8\u52a0\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u300c\u30ab\u30d7\u30bb\u30eb\u5316\u300d\u3068\u547c\u3073\u3001MAC\u30d8\u30c3\u30c0\u3092\u4ed8\u52a0\u3055\u308c\u305f\u30c7\u30fc\u30bf\u304c\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u30d5\u30ec\u30fc\u30e0\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3010\u56f3\u89e3\uff1a\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u30d5\u30ec\u30fc\u30e0\u306e\u7c21\u6613\u69cb\u9020\u3011<br \/>\n<code>[ \u5b9b\u5148MAC\u30a2\u30c9\u30ec\u30b9 | \u9001\u4fe1\u5143MAC\u30a2\u30c9\u30ec\u30b9 | \u30bf\u30a4\u30d7 ] + [ \u30c7\u30fc\u30bf\u672c\u4f53\uff08IP\u30d1\u30b1\u30c3\u30c8\u306a\u3069\uff09 ] + [ FCS ]<\/code><br \/>\n<code>\u2191----------------- MAC\u30d8\u30c3\u30c0 -----------------\u2191<\/code><\/p>\n<p>\u3053\u306eMAC\u30d8\u30c3\u30c0\u306b\u542b\u307e\u308c\u308b\u4e3b\u8981\u306a\u60c5\u5831\u306f\u6b21\u306e3\u3064\u3067\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u30d5\u30a3\u30fc\u30eb\u30c9\u540d<\/th>\n<th>\u5f79\u5272<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u5b9b\u5148MAC\u30a2\u30c9\u30ec\u30b9<\/strong><\/td>\n<td>\u30c7\u30fc\u30bf\u306e\u5c4a\u3051\u5148\u3068\u306a\u308b\u6a5f\u5668\u306eMAC\u30a2\u30c9\u30ec\u30b9\u3002\u3053\u308c\u3092\u898b\u3066\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u30b9\u30a4\u30c3\u30c1\u306a\u3069\u304c\u9069\u5207\u306a\u6a5f\u5668\u306b\u30c7\u30fc\u30bf\u3092\u8ee2\u9001\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u9001\u4fe1\u5143MAC\u30a2\u30c9\u30ec\u30b9<\/strong><\/td>\n<td>\u30c7\u30fc\u30bf\u3092\u9001\u308a\u51fa\u3057\u305f\u6a5f\u5668\u306eMAC\u30a2\u30c9\u30ec\u30b9\u3002\u53d7\u4fe1\u5074\u304c\u300c\u8ab0\u304b\u3089\u306e\u30c7\u30fc\u30bf\u304b\u300d\u3092\u8b58\u5225\u3057\u3001\u8fd4\u4fe1\u3059\u308b\u969b\u306e\u5b9b\u5148\u3068\u3057\u3066\u4f7f\u3044\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u30bf\u30a4\u30d7<\/strong><\/td>\n<td>\u30c7\u30fc\u30bf\u672c\u4f53\u306b\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u4e0a\u4f4d\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u7a2e\u985e\u3092\u793a\u3059\u8b58\u5225\u756a\u53f7\u3002\u4f8b\u3048\u3070<code>0x0800<\/code>\u306a\u3089\u300c\u4e2d\u8eab\u306fIP\u30d1\u30b1\u30c3\u30c8\u3067\u3059\u300d\u3001<code>0x0806<\/code>\u306a\u3089\u300c\u4e2d\u8eab\u306fARP\u30d1\u30b1\u30c3\u30c8\u3067\u3059\u300d\u3068\u3044\u3046\u3053\u3068\u3092\u793a\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>\u306a\u305cMAC\u30d8\u30c3\u30c0\u306f\u4e0d\u53ef\u6b20\u306a\u306e\u304b\uff1f<\/strong><\/p>\n<p>\u3053\u306e\u300c\u5b9b\u540d\u30e9\u30d9\u30eb\u300d\u304c\u306a\u3051\u308c\u3070\u3001\u30c7\u30fc\u30bf\u306f\u76ee\u7684\u5730\u306b\u305f\u3069\u308a\u7740\u3051\u307e\u305b\u3093\u3002<\/p>\n<ul>\n<li><strong>\u5b9b\u5148MAC\u30a2\u30c9\u30ec\u30b9\u304c\u306a\u3051\u308c\u3070<\/strong>\uff1a\u540c\u3058\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3055\u308c\u305f\u591a\u6570\u306e\u6a5f\u5668\u306e\u4e2d\u304b\u3089\u3001\u3069\u308c\u306b\u30c7\u30fc\u30bf\u3092\u5c4a\u3051\u308b\u3079\u304d\u304b\u5224\u65ad\u3067\u304d\u307e\u305b\u3093\u3002<\/li>\n<li><strong>\u9001\u4fe1\u5143MAC\u30a2\u30c9\u30ec\u30b9\u304c\u306a\u3051\u308c\u3070<\/strong>\uff1a\u30c7\u30fc\u30bf\u3092\u53d7\u3051\u53d6\u3063\u305f\u5074\u304c\u3001\u8ab0\u306b\u8fd4\u4fe1\u3059\u308c\u3070\u3088\u3044\u304b\u5206\u304b\u308a\u307e\u305b\u3093\u3002\u307e\u305f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6a5f\u5668\uff08\u30b9\u30a4\u30c3\u30c1\u30f3\u30b0\u30cf\u30d6\uff09\u304c\u300c\u3069\u306e\u30dd\u30fc\u30c8\u306b\u3069\u306e\u6a5f\u5668\u304c\u63a5\u7d9a\u3055\u308c\u3066\u3044\u308b\u304b\u300d\u3092\u5b66\u7fd2\u3059\u308b\u305f\u3081\u306b\u3082\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/li>\n<li><strong>\u30bf\u30a4\u30d7\u304c\u306a\u3051\u308c\u3070<\/strong>\uff1a\u30d5\u30ec\u30fc\u30e0\u3092\u53d7\u3051\u53d6\u3063\u305f\u6a5f\u5668\u304c\u3001\u305d\u306e\u4e2d\u8eab\u3092\u3069\u3046\u51e6\u7406\u3059\u308c\u3070\u3088\u3044\u304b\u5224\u65ad\u3067\u304d\u307e\u305b\u3093\u3002\u300c\u3053\u308c\u306fWeb\u30b5\u30a4\u30c8\u306e\u30c7\u30fc\u30bf\uff08IP\uff09\u3060\u304b\u3089\u30d6\u30e9\u30a6\u30b6\u306b\u6e21\u305d\u3046\u300d\u300c\u3053\u308c\u306f\u30a2\u30c9\u30ec\u30b9\u89e3\u6c7a\u306e\u554f\u3044\u5408\u308f\u305b\uff08ARP\uff09\u3060\u304b\u3089OS\u3067\u51e6\u7406\u3057\u3088\u3046\u300d\u3068\u3044\u3063\u305f\u5224\u65ad\u306f\u3001\u3053\u306e\u30bf\u30a4\u30d7\u60c5\u5831\u306b\u57fa\u3065\u3044\u3066\u884c\u308f\u308c\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001MAC\u30d8\u30c3\u30c0\u306f\u540c\u4e00\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u3067\u306e\u78ba\u5b9f\u306a\u901a\u4fe1\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306e\u3001\u975e\u5e38\u306b\u91cd\u8981\u306a\u5236\u5fa1\u60c5\u5831\u306a\u306e\u3067\u3059\u3002<\/p>\n<h2>ARP\u306e\u4ed5\u7d44\u307f\u3068\u306f\uff1fIP\u30a2\u30c9\u30ec\u30b9\u304b\u3089MAC\u30a2\u30c9\u30ec\u30b9\u3092\u8abf\u3079\u308b\u8b0e\u89e3\u304d\u901a\u4fe1<\/h2>\n<p>\u3055\u3066\u3001\u3053\u308c\u307e\u3067\u306e\u89e3\u8aac\u3067\u300cIP\u30a2\u30c9\u30ec\u30b9\uff08\u4f4f\u6240\uff09\u300d\u3068\u300cMAC\u30a2\u30c9\u30ec\u30b9\uff08\u6a5f\u5668\u306e\u80cc\u756a\u53f7\uff09\u300d\u3001\u305d\u3057\u3066\u305d\u308c\u3089\u3092\u8a18\u8f09\u3059\u308b\u300cMAC\u30d8\u30c3\u30c0\uff08\u5b9b\u540d\u30e9\u30d9\u30eb\uff09\u300d\u304c\u767b\u5834\u3057\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u3053\u3053\u3067\u5927\u304d\u306a\u7591\u554f\u304c\u751f\u307e\u308c\u307e\u3059\u3002<\/p>\n<p><strong>\u300c\u901a\u4fe1\u3057\u305f\u3044\u76f8\u624b\u306eIP\u30a2\u30c9\u30ec\u30b9\u306f\u5206\u304b\u3063\u3066\u3044\u308b\u3051\u3069\u3001\u305d\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u6301\u3064\u6a5f\u5668\u306eMAC\u30a2\u30c9\u30ec\u30b9\u304c\u5206\u304b\u3089\u306a\u3044\u2026\u300d<\/strong><\/p>\n<p>\u307e\u3055\u306b\u3001\u4f4f\u6240\u306f\u5206\u304b\u3063\u3066\u3044\u308b\u3051\u308c\u3069\u3001\u305d\u306e\u5bb6\u306b\u4f4f\u3093\u3067\u3044\u308b\u4eba\u306e\u540d\u524d\u304c\u5206\u304b\u3089\u306a\u3044\u72b6\u614b\u3067\u3059\u3002\u3053\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3057\u306a\u3051\u308c\u3070\u3001MAC\u30d8\u30c3\u30c0\u306b\u5b9b\u5148MAC\u30a2\u30c9\u30ec\u30b9\u3092\u66f8\u304d\u8fbc\u3081\u305a\u3001\u30c7\u30fc\u30bf\u3092\u9001\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<p>\u3053\u306e\u300cIP\u30a2\u30c9\u30ec\u30b9\u3092\u624b\u304c\u304b\u308a\u306b\u3001MAC\u30a2\u30c9\u30ec\u30b9\u3092\u554f\u3044\u5408\u308f\u305b\u308b\u300d\u305f\u3081\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3053\u305d\u304c\u3001<strong>ARP (Address Resolution Protocol)<\/strong> \u3067\u3059\u3002ARP\u306f\u3001\u307e\u308b\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u3067\u300c192.168.1.10\u3055\u3093\u3001\u3042\u306a\u305f\u306eMAC\u30a2\u30c9\u30ec\u30b9\u3092\u6559\u3048\u3066\u304f\u3060\u3055\u30fc\u3044\uff01\u300d\u3068\u30a2\u30ca\u30a6\u30f3\u30b9\u3057\u3066\u304f\u308c\u308b\u3088\u3046\u306a\u5f79\u5272\u3092\u62c5\u3044\u307e\u3059\u3002<\/p>\n<h3>ARP\u306e\u5177\u4f53\u7684\u306a\u52d5\u4f5c\u30d5\u30ed\u30fc<\/h3>\n<p>ARP\u304c\u3069\u306e\u3088\u3046\u306bMAC\u30a2\u30c9\u30ec\u30b9\u3092\u89e3\u6c7a\u3059\u308b\u306e\u304b\u3001\u5177\u4f53\u7684\u306aPC\u9593\u306e\u901a\u4fe1\u3092\u4f8b\u306b\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><strong>\u3010\u767b\u5834\u4eba\u7269\u3011<\/strong><\/p>\n<ul>\n<li><strong>PC-A<\/strong>: IP\u30a2\u30c9\u30ec\u30b9 <code>192.168.1.10<\/code> \/ MAC\u30a2\u30c9\u30ec\u30b9 <code>AA-AA-AA-AA-AA-AA<\/code><\/li>\n<li><strong>PC-B<\/strong>: IP\u30a2\u30c9\u30ec\u30b9 <code>192.168.1.20<\/code> \/ MAC\u30a2\u30c9\u30ec\u30b9 <code>BB-BB-BB-BB-BB-BB<\/code><\/li>\n<li><strong>\u821e\u53f0<\/strong>: \u540c\u3058\u793e\u5185\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08\u540c\u4e00\u30bb\u30b0\u30e1\u30f3\u30c8\uff09<\/li>\n<\/ul>\n<p><strong>\u3010\u30b7\u30ca\u30ea\u30aa\u3011<\/strong> PC-A\u304c\u3001\u521d\u3081\u3066PC-B\u306b\u30c7\u30fc\u30bf\u3092\u9001\u308d\u3046\u3068\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<ol>\n<li><strong>[PC-A] \u76ee\u7684\u5730\u306e\u78ba\u8a8d<\/strong>: PC-A\u306f\u300c<code>192.168.1.20<\/code> (PC-B) \u306b\u30c7\u30fc\u30bf\u3092\u9001\u308a\u305f\u3044\u300d\u3068\u8003\u3048\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u5b9b\u540d\u30e9\u30d9\u30eb\uff08MAC\u30d8\u30c3\u30c0\uff09\u306b\u66f8\u304f\u3079\u304dPC-B\u306eMAC\u30a2\u30c9\u30ec\u30b9\u3092\u77e5\u308a\u307e\u305b\u3093\u3002<\/li>\n<li><strong>[PC-A] ARP\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8<\/strong>: \u305d\u3053\u3067PC-A\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e<strong>\u3059\u3079\u3066\u306e\u6a5f\u5668<\/strong>\u306b\u5411\u304b\u3063\u3066\u3001\u300c<strong>ARP\u30ea\u30af\u30a8\u30b9\u30c8<\/strong>\u300d\u3068\u3044\u3046\u30d1\u30b1\u30c3\u30c8\u3092\u4e00\u6589\u9001\u4fe1\uff08\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\uff09\u3057\u307e\u3059\u3002\n<ul>\n<li><strong>\u30d1\u30b1\u30c3\u30c8\u306e\u4e2d\u8eab<\/strong>: \u300cIP\u30a2\u30c9\u30ec\u30b9\u304c <code>192.168.1.20<\/code> \u306e\u65b9\u3001\u3042\u306a\u305f\u306eMAC\u30a2\u30c9\u30ec\u30b9\u3092\u6559\u3048\u3066\u304f\u3060\u3055\u3044\u3002\u3061\u306a\u307f\u306b\u79c1\u306f <code>192.168.1.10<\/code> \u306e <code>AA-AA-....<\/code> \u3067\u3059\u300d<\/li>\n<li><strong>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8<\/strong>: \u3053\u306e\u6642\u3001\u5b9b\u5148MAC\u30a2\u30c9\u30ec\u30b9\u306b\u306f\u7279\u6b8a\u306a\u300c<code>FF-FF-FF-FF-FF-FF<\/code>\u300d\u304c\u8a2d\u5b9a\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u300c\u5168\u54e1\u5b9b\u300d\u3092\u610f\u5473\u3057\u3001\u540c\u3058\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u3044\u308b\u5168\u54e1\u304c\u3053\u306e\u30d1\u30b1\u30c3\u30c8\u3092\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>[\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u5168\u6a5f\u5668] \u30ea\u30af\u30a8\u30b9\u30c8\u306e\u53d7\u4fe1<\/strong>: PC-B\u3092\u542b\u3080\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u3059\u3079\u3066\u306e\u6a5f\u5668\u304cARP\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002<\/li>\n<li><strong>[PC-B] ARP\u30ea\u30d7\u30e9\u30a4\u3092\u30e6\u30cb\u30ad\u30e3\u30b9\u30c8<\/strong>:\n<ul>\n<li>\u95a2\u4fc2\u306a\u3044\u6a5f\u5668\u306f\u300c\u81ea\u5206\u5b9b\u306e\u554f\u3044\u5408\u308f\u305b\u3067\u306f\u306a\u3044\u300d\u3068\u5224\u65ad\u3057\u3001\u3053\u306e\u30d1\u30b1\u30c3\u30c8\u3092\u7121\u8996\uff08\u7834\u68c4\uff09\u3057\u307e\u3059\u3002<\/li>\n<li>\u4e00\u65b9\u3001\u540d\u6307\u3057\u3055\u308c\u305fPC-B\u306f\u300c\u305d\u308c\u306f\u79c1\u306e\u3053\u3068\u3060\uff01\u300d\u3068\u5fdc\u7b54\u3057\u307e\u3059\u3002PC-B\u306f\u300c<strong>ARP\u30ea\u30d7\u30e9\u30a4<\/strong>\u300d\u3068\u3044\u3046\u30d1\u30b1\u30c3\u30c8\u3092\u3001\u554f\u3044\u5408\u308f\u305b\u5143\u3067\u3042\u308bPC-A\u306b\u3060\u3051\u8fd4\u4fe1\uff08\u30e6\u30cb\u30ad\u30e3\u30b9\u30c8\uff09\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30d1\u30b1\u30c3\u30c8\u306e\u4e2d\u8eab<\/strong>: \u300c\u306f\u3044\u3001<code>192.168.1.20<\/code> \u306f\u79c1\u3067\u3059\u3002\u79c1\u306eMAC\u30a2\u30c9\u30ec\u30b9\u306f <code>BB-BB-BB-BB-BB-BB<\/code> \u3067\u3059\u300d<\/li>\n<\/ul>\n<\/li>\n<li><strong>[PC-A] \u8b0e\u89e3\u304d\u5b8c\u4e86\uff01<\/strong>: ARP\u30ea\u30d7\u30e9\u30a4\u3092\u53d7\u3051\u53d6\u3063\u305fPC-A\u306f\u3001\u3064\u3044\u306bPC-B\u306eMAC\u30a2\u30c9\u30ec\u30b9\u3092\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002\u3053\u308c\u3067\u6674\u308c\u3066\u5b9b\u5148MAC\u30a2\u30c9\u30ec\u30b9\u3092\u66f8\u304d\u8fbc\u3080\u3053\u3068\u304c\u3067\u304d\u3001\u672c\u6765\u9001\u308a\u305f\u304b\u3063\u305f\u30c7\u30fc\u30bf\u3092PC-B\u306b\u9001\u4fe1\u958b\u59cb\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ol>\n<p>\u3053\u306e\u4e00\u9023\u306e\u6d41\u308c\u304c\u3001ARP\u306b\u3088\u308b\u30a2\u30c9\u30ec\u30b9\u89e3\u6c7a\u3067\u3059\u3002<\/p>\n<h3>ARP\u30d1\u30b1\u30c3\u30c8\u306e\u4ed5\u69d8<\/h3>\n<p>\u3053\u306e\u300c\u6559\u3048\u3066\u304f\u3060\u3055\u3044\uff08\u30ea\u30af\u30a8\u30b9\u30c8\uff09\u300d\u3068\u300c\u79c1\u3067\u3059\uff08\u30ea\u30d7\u30e9\u30a4\uff09\u300d\u306e\u3084\u308a\u53d6\u308a\u3092\u5236\u5fa1\u3057\u3066\u3044\u308b\u306e\u304c\u3001ARP\u30d1\u30b1\u30c3\u30c8\u306e\u4e2d\u8eab\u3067\u3059\u3002\u7279\u306b\u91cd\u8981\u306a\u306e\u304c\u300c\u30aa\u30da\u30ec\u30fc\u30b7\u30e7\u30f3\u30b3\u30fc\u30c9\u300d\u3067\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u30d5\u30a3\u30fc\u30eb\u30c9\uff08\u4e00\u90e8\uff09<\/th>\n<th>\u8aac\u660e<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u30aa\u30da\u30ec\u30fc\u30b7\u30e7\u30f3\u30b3\u30fc\u30c9<\/strong><\/td>\n<td>ARP\u30d1\u30b1\u30c3\u30c8\u306e\u7a2e\u985e\u3092\u793a\u3057\u307e\u3059\u3002<strong><code>1<\/code>\u306a\u3089\u300c\u30ea\u30af\u30a8\u30b9\u30c8\uff08\u554f\u3044\u5408\u308f\u305b\uff09\u300d<\/strong>\u3001<strong><code>2<\/code>\u306a\u3089\u300c\u30ea\u30d7\u30e9\u30a4\uff08\u5fdc\u7b54\uff09\u300d<\/strong>\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u9001\u4fe1\u5143MAC\u30a2\u30c9\u30ec\u30b9<\/strong><\/td>\n<td>\u30d1\u30b1\u30c3\u30c8\u3092\u9001\u4fe1\u3059\u308b\u6a5f\u5668\u306eMAC\u30a2\u30c9\u30ec\u30b9\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u9001\u4fe1\u5143IP\u30a2\u30c9\u30ec\u30b9<\/strong><\/td>\n<td>\u30d1\u30b1\u30c3\u30c8\u3092\u9001\u4fe1\u3059\u308b\u6a5f\u5668\u306eIP\u30a2\u30c9\u30ec\u30b9\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u30bf\u30fc\u30b2\u30c3\u30c8MAC\u30a2\u30c9\u30ec\u30b9<\/strong><\/td>\n<td><strong>\u30ea\u30af\u30a8\u30b9\u30c8\u6642<\/strong>\u306f\u4e0d\u660e\u306a\u306e\u3067<code>00-00-..<\/code>\u3002<strong>\u30ea\u30d7\u30e9\u30a4\u6642<\/strong>\u306f\u3001\u554f\u3044\u5408\u308f\u305b\u306b\u7b54\u3048\u308b\u6a5f\u5668\u306eMAC\u30a2\u30c9\u30ec\u30b9\u304c\u5165\u308a\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u30bf\u30fc\u30b2\u30c3\u30c8IP\u30a2\u30c9\u30ec\u30b9<\/strong><\/td>\n<td>MAC\u30a2\u30c9\u30ec\u30b9\u3092\u554f\u3044\u5408\u308f\u305b\u305f\u3044\u6a5f\u5668\u306eIP\u30a2\u30c9\u30ec\u30b9\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>ARP\u306f\u3001\u3053\u306e\u3088\u3046\u306bIP\u30a2\u30c9\u30ec\u30b9\u3068\u3044\u3046\u8ad6\u7406\u7684\u306a\u30a2\u30c9\u30ec\u30b9\u3068\u3001MAC\u30a2\u30c9\u30ec\u30b9\u3068\u3044\u3046\u7269\u7406\u7684\u306a\u30a2\u30c9\u30ec\u30b9\u3092\u52d5\u7684\u306b\u7d50\u3073\u3064\u3051\u308b\u3001TCP\/IP\u901a\u4fe1\u306b\u4e0d\u53ef\u6b20\u306a\u300c\u7e01\u306e\u4e0b\u306e\u529b\u6301\u3061\u300d\u306a\u306e\u3067\u3059\u3002<\/p>\n<h2>ARP\u30ad\u30e3\u30c3\u30b7\u30e5\u3068\u30d0\u30fc\u30b9\u30c8\u7279\u6027\uff5c\u7121\u99c4\u306a\u901a\u4fe1\u3092\u6e1b\u3089\u3059\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u77e5\u6075<\/h2>\n<p>ARP\u306e\u4ed5\u7d44\u307f\u306b\u3088\u3063\u3066\u3001IP\u30a2\u30c9\u30ec\u30b9\u304b\u3089MAC\u30a2\u30c9\u30ec\u30b9\u3092\u7279\u5b9a\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u3053\u3053\u3067\u4e00\u3064\u8003\u3048\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002\u3082\u3057\u3001\u30c7\u30fc\u30bf\u3092\u9001\u308b\u305f\u3073\u306b\u3001\u6bce\u56de\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u3078\u300c\u3007\u3007\u3055\u3093\u3001\u3044\u307e\u3059\u304b\u30fc\uff1f\u300d\u3068\u5927\u58f0\u3067\u5c0b\u306d\u3066\u3044\u305f\u3089\u3069\u3046\u306a\u308b\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n<p>\u901a\u4fe1\u306e\u305f\u3073\u306bARP\u30ea\u30af\u30a8\u30b9\u30c8\u3068\u3044\u3046\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u304c\u767a\u751f\u3059\u308b\u3068\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f\u5e38\u306b\u554f\u3044\u5408\u308f\u305b\u306e\u30d1\u30b1\u30c3\u30c8\u3067\u6ea2\u308c\u304b\u3048\u308a\u3001\u975e\u5e38\u306b\u975e\u52b9\u7387\u3067\u3059\u3002\u3053\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u306e\u304c\u300c<strong>ARP\u30ad\u30e3\u30c3\u30b7\u30e5<\/strong>\u300d\u3068\u3044\u3046\u8ce2\u3044\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n<h3>ARP\u30ad\u30e3\u30c3\u30b7\u30e5\u3068\u306f\uff1f\u300c\u4e00\u5ea6\u8abf\u3079\u305f\u540d\u524d\u306f\u899a\u3048\u3066\u304a\u304f\u300d<\/h3>\n<p>ARP\u30ad\u30e3\u30c3\u30b7\u30e5\u3068\u306f\u3001\u4e00\u5ea6ARP\u306b\u3088\u3063\u3066\u89e3\u6c7a\u3057\u305f\u300cIP\u30a2\u30c9\u30ec\u30b9\u3068MAC\u30a2\u30c9\u30ec\u30b9\u306e\u5bfe\u5fdc\u8868\u300d\u3092\u3001\u5404\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u304c\u81ea\u8eab\u306e\u30e1\u30e2\u30ea\u4e0a\u306b\u4e00\u6642\u7684\u306b\u4fdd\u5b58\u3057\u3066\u304a\u304f\u6a5f\u80fd\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u3053\u308c\u306f\u3001\u3088\u304f\u96fb\u8a71\u3092\u304b\u3051\u308b\u76f8\u624b\u306e\u96fb\u8a71\u756a\u53f7\u3092\u3001\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u306e\u9023\u7d61\u5148\u306b\u767b\u9332\u3057\u3066\u304a\u304f\u306e\u3068\u540c\u3058\u3067\u3059\u3002\u4e00\u5ea6\u767b\u9332\u3057\u3066\u304a\u3051\u3070\u3001\u6b21\u304b\u3089\u306f\u96fb\u8a71\u5e33\u3092\u63a2\u3059\u3060\u3051\u3067\u6e08\u307f\u3001\u308f\u3056\u308f\u3056\u8ab0\u304b\u306b\u756a\u53f7\u3092\u554f\u3044\u5408\u308f\u305b\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3088\u306d\u3002<\/p>\n<h4>ARP\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30e1\u30ea\u30c3\u30c8<\/h4>\n<ol>\n<li><strong>\u901a\u4fe1\u306e\u9ad8\u901f\u5316<\/strong>: 2\u56de\u76ee\u4ee5\u964d\u306e\u901a\u4fe1\u3067\u306f\u3001ARP\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u4fe1\u3059\u308b\u624b\u9593\u304c\u7701\u3051\u307e\u3059\u3002\u81ea\u8eab\u306eARP\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u53c2\u7167\u3059\u308b\u3060\u3051\u3067\u3059\u3050\u306bMAC\u30a2\u30c9\u30ec\u30b9\u304c\u308f\u304b\u308b\u305f\u3081\u3001\u7d20\u65e9\u304f\u30c7\u30fc\u30bf\u9001\u4fe1\u3092\u958b\u59cb\u3067\u304d\u307e\u3059\u3002<\/li>\n<li><strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8ca0\u8377\u306e\u8efd\u6e1b<\/strong>: \u4f55\u3088\u308a\u3082\u3001\u4e0d\u8981\u306aARP\u30ea\u30af\u30a8\u30b9\u30c8\uff08\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\uff09\u3092\u5287\u7684\u306b\u6e1b\u3089\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u306e\u7121\u99c4\u306a\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u304c\u524a\u6e1b\u3055\u308c\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n<h3>ARP\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u4e2d\u8eab\u3068\u6709\u52b9\u671f\u9650<\/h3>\n<p>\u3053\u306eARP\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u3001\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u3084\u30bf\u30fc\u30df\u30ca\u30eb\u3067 <code>arp -a<\/code> \u3068\u5165\u529b\u3059\u308b\u3053\u3068\u3067\u3001\u5b9f\u969b\u306b\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre><code>> arp -a\n\n\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9: 192.168.1.10 --- 0x10\n  \u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8 \u30a2\u30c9\u30ec\u30b9   \u7269\u7406\u30a2\u30c9\u30ec\u30b9           \u7a2e\u985e\n  192.168.1.1           d8-5d-ef-1a-2b-3c     \u52d5\u7684\n  192.168.1.20          bb-bb-bb-bb-bb-bb     \u52d5\u7684\n  224.0.0.22            01-00-5e-00-00-16     \u9759\u7684\n<\/code><\/pre>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u300c\u3069\u306eIP\u30a2\u30c9\u30ec\u30b9\u300d\u304c\u300c\u3069\u306eMAC\u30a2\u30c9\u30ec\u30b9\u300d\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u304b\u304c\u4e00\u89a7\u3067\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001\u3053\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u60c5\u5831\u306f\u305a\u3063\u3068\u4fdd\u5b58\u3055\u308c\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u901a\u5e38\u306f\u6570\u5206\u304b\u3089\u6570\u5341\u5206\u7a0b\u5ea6\u306e<strong>\u6709\u52b9\u671f\u9650\uff08\u30a8\u30fc\u30b8\u30f3\u30b0\u30bf\u30a4\u30e0\uff09<\/strong>\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u304a\u308a\u3001\u671f\u9650\u304c\u5207\u308c\u308b\u3068\u81ea\u52d5\u7684\u306b\u524a\u9664\u3055\u308c\u307e\u3059\u3002\u306a\u305c\u306a\u3089\u3001PC\u306e\u79fb\u52d5\u3084\u6a5f\u5668\u306e\u6545\u969c\u306a\u3069\u3067\u3001IP\u30a2\u30c9\u30ec\u30b9\u3068MAC\u30a2\u30c9\u30ec\u30b9\u306e\u7d44\u307f\u5408\u308f\u305b\u306f\u5909\u66f4\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u5e38\u306b\u6700\u65b0\u306e\u60c5\u5831\u3092\u4fdd\u3064\u5fc5\u8981\u304c\u3042\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n<h3>\u30d0\u30fc\u30b9\u30c8\u7279\u6027\u3068ARP\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u91cd\u8981\u6027<\/h3>\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e\u901a\u4fe1\u306f\u3001\u5e38\u306b\u4e00\u5b9a\u91cf\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u52d5\u753b\u306e\u8aad\u307f\u8fbc\u307f\u958b\u59cb\u6642\u3084\u3001\u5927\u5bb9\u91cf\u30d5\u30a1\u30a4\u30eb\u306e\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u6642\u306a\u3069\u3001\u7279\u5b9a\u306e\u77ac\u9593\u306b\u30c7\u30fc\u30bf\u8ee2\u9001\u304c\u96c6\u4e2d\u3059\u308b\u300c<strong>\u30d0\u30fc\u30b9\u30c8\u901a\u4fe1<\/strong>\u300d\u3068\u3044\u3046\u7279\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3082\u3057\u3001\u3053\u306e\u30d0\u30fc\u30b9\u30c8\u901a\u4fe1\u306e\u969b\u306bARP\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u306a\u3051\u308c\u3070\u3001\u3069\u3046\u306a\u308b\u3067\u3057\u3087\u3046\u304b\u3002<br \/>\u9001\u3089\u308c\u3066\u304f\u308b\u5927\u91cf\u306e\u30c7\u30fc\u30bf\u30d1\u30b1\u30c3\u30c8\u4e00\u3064\u3072\u3068\u3064\u306e\u305f\u3081\u306b\u3001ARP\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u304c\u4f55\u5ea6\u3082\u767a\u751f\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u30d1\u30f3\u30af\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n<p>ARP\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u3042\u308b\u304a\u304b\u3052\u3067\u3001\u6700\u521d\u306e1\u56de\u3060\u3051\u30a2\u30c9\u30ec\u30b9\u3092\u89e3\u6c7a\u3059\u308c\u3070\u3001\u3042\u3068\u306f\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u4f7f\u3063\u3066\u9ad8\u901f\u306b\u9023\u7d9a\u3067\u30c7\u30fc\u30bf\u3092\u51e6\u7406\u3067\u304d\u307e\u3059\u3002\u3064\u307e\u308a\u3001ARP\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u3001\u3053\u3046\u3057\u305f\u30d0\u30fc\u30b9\u30c8\u7684\u306a\u901a\u4fe1\u3092\u5186\u6ed1\u306b\u51e6\u7406\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u306e\u5b89\u5b9a\u6027\u3092\u4fdd\u3064\u4e0a\u3067\u3001\u6975\u3081\u3066\u91cd\u8981\u306a\u5f79\u5272\u3092\u62c5\u3063\u3066\u3044\u308b\u306e\u3067\u3059\u3002<\/p>\n<h2>\u30d7\u30ed\u30ad\u30b7ARP\u3068\u306f\uff1f\u30eb\u30fc\u30bf\u30fc\u304c\u4ee3\u7406\u3067\u5fdc\u7b54\u3059\u308b\u4fbf\u5229\u306a\u4ed5\u7d44\u307f<\/h2>\n<p>ARP\u306e\u57fa\u672c\u539f\u5247\u306f\u300cARP\u30ea\u30af\u30a8\u30b9\u30c8\uff08\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\uff09\u306f\u3001\u30eb\u30fc\u30bf\u30fc\u3092\u8d8a\u3048\u3089\u308c\u306a\u3044\u300d\u3068\u3044\u3046\u3082\u306e\u3067\u3059\u3002\u3064\u307e\u308a\u3001ARP\u306f\u3042\u304f\u307e\u3067<strong>\u540c\u3058\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185<\/strong>\u3067MAC\u30a2\u30c9\u30ec\u30b9\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306e\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n<p>\u3067\u306f\u3001\u3082\u3057\u9593\u9055\u3063\u3066\u5225\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u3044\u308b\u6a5f\u5668\u306b\u5bfe\u3057\u3066ARP\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u3063\u3066\u3057\u307e\u3063\u305f\u3089\u3001\u3069\u3046\u306a\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f\u901a\u5e38\u306a\u3089\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u30eb\u30fc\u30bf\u30fc\u306b\u906e\u3089\u308c\u3001\u8ab0\u304b\u3089\u3082\u5fdc\u7b54\u304c\u306a\u304f\u901a\u4fe1\u306f\u5931\u6557\u3057\u307e\u3059\u3002<\/p>\n<p>\u3057\u304b\u3057\u3001\u3053\u306e\u72b6\u6cc1\u3092\u6551\u3046\u305f\u3081\u306b\u3001\u30eb\u30fc\u30bf\u30fc\u304c\u300c\u4ee3\u7406\uff08Proxy\uff09\u300d\u3067\u5fdc\u7b54\u3057\u3066\u304f\u308c\u308b\u7279\u6b8a\u306a\u6a5f\u80fd\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u304c<strong>\u30d7\u30ed\u30ad\u30b7ARP\uff08Proxy ARP\uff09<\/strong>\u3067\u3059\u3002<\/p>\n<h3>\u30d7\u30ed\u30ad\u30b7ARP\u306e\u5f79\u5272\uff1a\u300c\u79c1\u304c\u4ee3\u308f\u308a\u306b\u7b54\u3048\u3066\u304a\u304d\u307e\u3059\u300d<\/h3>\n<p>\u30d7\u30ed\u30ad\u30b7ARP\u3068\u306f\u3001\u30eb\u30fc\u30bf\u30fc\u304c\u7ba1\u7406\u3059\u308b\u5225\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5b9b\u3066\u306eARP\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u53d7\u3051\u53d6\u3063\u305f\u969b\u306b\u3001<strong>\u672c\u6765\u306e\u5b9b\u5148\u6a5f\u5668\u306e\u4ee3\u308f\u308a\u306b\u3001\u30eb\u30fc\u30bf\u30fc\u81ea\u8eab\u306eMAC\u30a2\u30c9\u30ec\u30b9\u3092\u5fdc\u7b54\u3059\u308b<\/strong>\u6a5f\u80fd\u3067\u3059\u3002<\/p>\n<p>\u3053\u308c\u306f\u3001\u5927\u898f\u6a21\u306a\u30de\u30f3\u30b7\u30e7\u30f3\u306e\u30b3\u30f3\u30b7\u30a7\u30eb\u30b8\u30e5\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3059\u3002<br \/>\u914d\u9054\u54e1\u304c\u3001\u81ea\u5206\u304c\u62c5\u5f53\u3067\u306f\u306a\u3044\u5225\u306e\u68df\u306b\u4f4f\u3080\u300c\u7530\u4e2d\u3055\u3093\u300d\u306e\u90e8\u5c4b\u3092\u63a2\u3057\u3066\u300c\u7530\u4e2d\u3055\u30fc\u3093\uff01\u300d\u3068\u53eb\u3093\u3060\u3068\u3057\u307e\u3059\u3002\u901a\u5e38\u306f\u5fdc\u7b54\u304c\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u4e8b\u60c5\u3092\u3088\u304f\u77e5\u308b\u30b3\u30f3\u30b7\u30a7\u30eb\u30b8\u30e5\u304c\u300c\u7530\u4e2d\u3055\u3093\u306a\u3089\u3042\u3061\u3089\u306e\u68df\u3067\u3059\u3088\u3002\u8377\u7269\u306f\u79c1\u304c\u9810\u304b\u3063\u3066\u3001\u8cac\u4efb\u3092\u6301\u3063\u3066\u304a\u5c4a\u3051\u3057\u307e\u3059\u300d\u3068\u4ee3\u7406\u3067\u5fdc\u7b54\u3057\u3066\u304f\u308c\u308b\u30a4\u30e1\u30fc\u30b8\u3067\u3059\u3002\u914d\u9054\u54e1\u306f\u3001\u30b3\u30f3\u30b7\u30a7\u30eb\u30b8\u30e5\u306b\u8377\u7269\u3092\u6e21\u305b\u3070\u3001\u7121\u4e8b\u306b\u7530\u4e2d\u3055\u3093\u306e\u5143\u3078\u5c4a\u3051\u3066\u3082\u3089\u3048\u307e\u3059\u3002<\/p>\n<h3>\u30d7\u30ed\u30ad\u30b7ARP\u306e\u52d5\u4f5c\u30d5\u30ed\u30fc<\/h3>\n<p><strong>\u3010\u767b\u5834\u4eba\u7269\u3011<\/strong><\/p>\n<ul>\n<li><strong>PC-A<\/strong>: IP\u30a2\u30c9\u30ec\u30b9 <code>192.168.1.10<\/code><\/li>\n<li><strong>PC-C<\/strong>: IP\u30a2\u30c9\u30ec\u30b9 <code>192.168.2.10<\/code> \uff08PC-A\u3068\u306f\u5225\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u3044\u308b\uff09<\/li>\n<li><strong>\u30eb\u30fc\u30bf\u30fc<\/strong>: 2\u3064\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u7e4b\u3044\u3067\u304a\u308a\u3001\u30d7\u30ed\u30ad\u30b7ARP\u304c\u6709\u52b9\u3002MAC\u30a2\u30c9\u30ec\u30b9\u306f <code>RR-RR-RR-RR-RR-RR<\/code>\u3002<\/li>\n<\/ul>\n<p><strong>\u3010\u30b7\u30ca\u30ea\u30aa\u3011<\/strong>PC-A\u304c\u3001\u5225\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u3044\u308bPC-C\u306b\u901a\u4fe1\u3057\u3088\u3046\u3068\u3057\u307e\u3059\u3002<\/p>\n<ol>\n<li><strong>[PC-A] ARP\u30ea\u30af\u30a8\u30b9\u30c8<\/strong>: PC-A\u306f\u3001\u901a\u4fe1\u76f8\u624b\u306ePC-C(<code>192.168.2.10<\/code>)\u304c\u540c\u3058\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u3044\u308b\u3068<strong>\u52d8\u9055\u3044<\/strong>\u3057\u3001ARP\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u3057\u307e\u3059\u3002<\/li>\n<li><strong>[\u30eb\u30fc\u30bf\u30fc] \u4ee3\u7406\u5fdc\u7b54<\/strong>: \u3053\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u306fPC-C\u306b\u306f\u5c4a\u304d\u307e\u305b\u3093\u3002\u3057\u304b\u3057\u3001\u30d7\u30ed\u30ad\u30b7ARP\u304c\u6709\u52b9\u306a\u30eb\u30fc\u30bf\u30fc\u306f\u3001\u3053\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u898b\u3066\u300c<code>192.168.2.10<\/code> \u306f\u79c1\u306e\u7ba1\u8f44\u3060\u300d\u3068\u5224\u65ad\u3057\u307e\u3059\u3002\u305d\u3057\u3066\u3001<strong>\u3042\u305f\u304b\u3082\u81ea\u5206\u304cPC-C\u3067\u3042\u308b\u304b\u306e\u3088\u3046\u306b<\/strong>\u3001PC-A\u3078ARP\u30ea\u30d7\u30e9\u30a4\u3092\u8fd4\u3057\u307e\u3059\u3002\n<ul>\n<li><strong>\u5fdc\u7b54\u306e\u4e2d\u8eab<\/strong>: \u300c<code>192.168.2.10<\/code> \u306eMAC\u30a2\u30c9\u30ec\u30b9\u306f\u3001\u79c1\uff08\u30eb\u30fc\u30bf\u30fc\uff09\u306e <code>RR-RR-RR-RR-RR-RR<\/code> \u3067\u3059\u300d<\/li>\n<\/ul>\n<\/li>\n<li><strong>[PC-A] ARP\u30ad\u30e3\u30c3\u30b7\u30e5\u767b\u9332<\/strong>: PC-A\u306f\u3001\u305d\u306e\u5fdc\u7b54\u3092\u4fe1\u3058\u8fbc\u307f\u3001\u300c<code>192.168.2.10<\/code> \u306eMAC\u30a2\u30c9\u30ec\u30b9\u306f <code>RR-RR-..<\/code> \u3067\u3042\u308b\u300d\u3068ARP\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u767b\u9332\u3057\u307e\u3059\u3002<\/li>\n<li><strong>[PC-A] \u30c7\u30fc\u30bf\u9001\u4fe1<\/strong>: PC-A\u306fPC-C\u5b9b\u306e\u30c7\u30fc\u30bf\u3092\u3001\u5b9b\u5148MAC\u30a2\u30c9\u30ec\u30b9\u3092\u30eb\u30fc\u30bf\u30fc\u306e\u3082\u306e\u306b\u3057\u3066\u9001\u4fe1\u3057\u307e\u3059\u3002<\/li>\n<li><strong>[\u30eb\u30fc\u30bf\u30fc] \u30c7\u30fc\u30bf\u8ee2\u9001<\/strong>: \u30c7\u30fc\u30bf\u3092\u53d7\u3051\u53d6\u3063\u305f\u30eb\u30fc\u30bf\u30fc\u306f\u3001IP\u30d8\u30c3\u30c0\u3092\u898b\u3066\u672c\u6765\u306e\u5b9b\u5148\u304cPC-C\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3001\u8cac\u4efb\u3092\u3082\u3063\u3066PC-C\u306e\u3044\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3078\u30c7\u30fc\u30bf\u3092\u8ee2\u9001\uff08\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\uff09\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n<p>\u3053\u308c\u306b\u3088\u308a\u3001PC-A\u306f\u76f8\u624b\u304c\u5225\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u3044\u308b\u3053\u3068\u3092\u610f\u8b58\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u900f\u904e\u7684\u306b\u901a\u4fe1\u3092\u78ba\u7acb\u3067\u304d\u308b\u306e\u3067\u3059\u3002<\/p>\n<h3>\u30e1\u30ea\u30c3\u30c8\u3068\u30c7\u30e1\u30ea\u30c3\u30c8<\/h3>\n<p>\u30d7\u30ed\u30ad\u30b7ARP\u306f\u4fbf\u5229\u306a\u53cd\u9762\u3001\u6ce8\u610f\u70b9\u3082\u591a\u3044\u6280\u8853\u3067\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u30e1\u30ea\u30c3\u30c8<\/th>\n<th>\u30c7\u30e1\u30ea\u30c3\u30c8<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306e\u8a2d\u5b9a\u304c\u53e4\u3044\u3001\u307e\u305f\u306f\u9593\u9055\u3063\u3066\u3044\u308b\u6a5f\u5668\u3092\u6551\u6e08\u3067\u304d\u308b\u3002<\/td>\n<td>\u672c\u6765\u3068\u306f\u9055\u3046ARP\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u4f5c\u3089\u308c\u3001\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u56f0\u96e3\u306b\u306a\u308b\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u69cb\u6210\u3092\u4e00\u90e8\u5909\u66f4\u3057\u3066\u3082\u3001\u5404PC\u306e\u8a2d\u5b9a\u3092\u5909\u3048\u305a\u306b\u6e08\u3080\u5834\u5408\u304c\u3042\u308b\u3002<\/td>\n<td>ARP\u30b9\u30d7\u30fc\u30d5\u30a3\u30f3\u30b0\uff08\u306a\u308a\u3059\u307e\u3057\uff09\u306a\u3069\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af\u3092\u9ad8\u3081\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u30d7\u30ed\u30ad\u30b7ARP\u306f\u3001\u7dca\u6025\u907f\u96e3\u7684\u306a\u5229\u7528\u3084\u7279\u5b9a\u306e\u53e4\u3044\u30b7\u30b9\u30c6\u30e0\u3092\u63a5\u7d9a\u3059\u308b\u969b\u306b\u306f\u5f79\u7acb\u3061\u307e\u3059\u304c\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u6319\u52d5\u304c\u8907\u96d1\u306b\u306a\u308b\u305f\u3081\u3001\u73fe\u4ee3\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u8a08\u3067\u306f\u7a4d\u6975\u7684\u306a\u5229\u7528\u306f\u907f\u3051\u3089\u308c\u308b\u50be\u5411\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2>ICMP\u3068ping\u30b3\u30de\u30f3\u30c9\u306e\u5f79\u5272\uff5c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u3068\u30a8\u30e9\u30fc\u901a\u77e5<\/h2>\n<p>\u3053\u308c\u307e\u3067\u306e\u7ae0\u3067\u306f\u3001IP\u30a2\u30c9\u30ec\u30b9\u3084MAC\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u3044\u3001ARP\u306e\u52a9\u3051\u3092\u501f\u308a\u3066\u300c\u3044\u304b\u306b\u3057\u3066\u30c7\u30fc\u30bf\u3092\u6b63\u3057\u304f\u76f8\u624b\u306b\u5c4a\u3051\u308b\u304b\u300d\u3092\u898b\u3066\u304d\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u3082\u3057\u30c7\u30fc\u30bf\u304c\u9014\u4e2d\u3067\u7121\u304f\u306a\u3063\u305f\u308a\u3001\u5b9b\u5148\u304c\u898b\u3064\u304b\u3089\u306a\u304b\u3063\u305f\u308a\u3057\u305f\u5834\u5408\u3001\u9001\u4fe1\u5143\u306f\u3069\u3046\u3084\u3063\u3066\u305d\u306e\u4e8b\u5b9f\u3092\u77e5\u308c\u3070\u3088\u3044\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n<p>\u5b9f\u306f\u3001\u30c7\u30fc\u30bf\u3092\u904b\u3076\u4e3b\u5f79\u3067\u3042\u308bIP\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u306f\u3001\u30a8\u30e9\u30fc\u3092\u901a\u77e5\u3057\u305f\u308a\u3001\u901a\u4fe1\u304c\u6210\u529f\u3057\u305f\u304b\u3092\u78ba\u8a8d\u3057\u305f\u308a\u3059\u308b\u6a5f\u80fd\u304c\u5099\u308f\u3063\u3066\u3044\u307e\u305b\u3093\u3002IP\u306f\u305f\u3060\u3072\u305f\u3059\u3089\u3001\u30d9\u30b9\u30c8\u30a8\u30d5\u30a9\u30fc\u30c8\uff08\u6700\u5927\u9650\u306e\u52aa\u529b\uff09\u3067\u30c7\u30fc\u30bf\u3092\u9001\u308a\u5c4a\u3051\u308b\u3053\u3068\u3060\u3051\u306b\u5c02\u5ff5\u3057\u307e\u3059\u3002<\/p>\n<p>\u3053\u306eIP\u306e\u5f31\u70b9\u3092\u88dc\u3046\u305f\u3081\u306b\u5b58\u5728\u3059\u308b\u3001\u91cd\u8981\u306a\u76f8\u68d2\u304c<strong>ICMP\uff08Internet Control Message Protocol\uff09<\/strong>\u3067\u3059\u3002<\/p>\n<h3>ICMP\u3068\u306f\uff1fIP\u901a\u4fe1\u306e\u300c\u304a\u52a9\u3051\u5f79\u300d<\/h3>\n<p>ICMP\u306f\u3001IP\u901a\u4fe1\u306b\u304a\u3051\u308b\u30a8\u30e9\u30fc\u901a\u77e5\u3084\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u72b6\u614b\u3092\u8a3a\u65ad\u3059\u308b\u305f\u3081\u306e\u5236\u5fa1\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u3084\u308a\u53d6\u308a\u3059\u308b\u305f\u3081\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u3042\u306a\u305f\u304c\u9001\u3063\u305f\u8377\u7269\uff08IP\u30d1\u30b1\u30c3\u30c8\uff09\u304c\u3001\u5b9b\u5148\u4e0d\u660e\u3067\u914d\u9054\u3067\u304d\u306a\u304b\u3063\u305f\u3068\u3057\u307e\u3059\u3002\u305d\u306e\u969b\u3001\u914d\u9001\u696d\u8005\uff08\u30eb\u30fc\u30bf\u30fc\uff09\u304c\u300c\u5b9b\u5148\u4e0d\u660e\u3067\u3057\u305f\u300d\u3068\u3044\u3046\u4ed8\u7b8b\uff08ICMP\u30e1\u30c3\u30bb\u30fc\u30b8\uff09\u3092\u8377\u7269\u306b\u8cbc\u3063\u3066\u3001\u3042\u306a\u305f\u306e\u5143\u3078\u9001\u308a\u8fd4\u3057\u3066\u304f\u308c\u308b\u3002\u3053\u306e\u3088\u3046\u306a\u300c\u304a\u77e5\u3089\u305b\u6a5f\u80fd\u300d\u3092\u63d0\u4f9b\u3059\u308b\u306e\u304cICMP\u306e\u5f79\u5272\u3067\u3059\u3002<\/p>\n<p>\u4e3b\u306aICMP\u30e1\u30c3\u30bb\u30fc\u30b8\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u5b9b\u5148\u5230\u9054\u4e0d\u80fd\uff08Destination Unreachable\uff09<\/strong>: \u5b9b\u5148\u306e\u30db\u30b9\u30c8\u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u898b\u3064\u304b\u3089\u306a\u3044\u5834\u5408\u306b\u901a\u77e5\u3055\u308c\u307e\u3059\u3002<\/li>\n<li><strong>\u6642\u9593\u8d85\u904e\uff08Time Exceeded\uff09<\/strong>: \u30d1\u30b1\u30c3\u30c8\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u3092\u3055\u307e\u3088\u3044\u7d9a\u3051\u306a\u3044\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u306eTTL\uff08\u751f\u5b58\u6642\u9593\uff09\u304c\u30bc\u30ed\u306b\u306a\u3063\u305f\u5834\u5408\u306b\u901a\u77e5\u3055\u308c\u307e\u3059\u3002<\/li>\n<li><strong>\u30a8\u30b3\u30fc\u8981\u6c42\uff0f\u5fdc\u7b54\uff08Echo Request\/Reply\uff09<\/strong>: \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u758e\u901a\u78ba\u8a8d\u306b\u4f7f\u308f\u308c\u307e\u3059\u3002<\/li>\n<\/ul>\n<h3>ping\u30b3\u30de\u30f3\u30c9\uff1aICMP\u306e\u6700\u3082\u8eab\u8fd1\u306a\u5229\u7528\u4f8b<\/h3>\n<p>\u3053\u306eICMP\u306e\u4ed5\u7d44\u307f\u3092\u5229\u7528\u3057\u305f\u6700\u3082\u6709\u540d\u3067\u3001\u304b\u3064\u6700\u3082\u3088\u304f\u4f7f\u308f\u308c\u308b\u30b3\u30de\u30f3\u30c9\u304c<strong>`ping`<\/strong>\u3067\u3059\u3002<br \/>\n<code>ping<\/code>\u306f\u3001\u6307\u5b9a\u3057\u305fIP\u30a2\u30c9\u30ec\u30b9\u3084\u30db\u30b9\u30c8\u540d\u3092\u6301\u3064\u76f8\u624b\u3068\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7684\u306b\u7e4b\u304c\u3063\u3066\u3044\u308b\u304b\uff08\u758e\u901a\u6027\u304c\u3042\u308b\u304b\uff09\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306e\u3001\u6700\u3082\u57fa\u672c\u7684\u306a\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u30c4\u30fc\u30eb\u3067\u3059\u3002<\/p>\n<p>\u300c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u7e4b\u304c\u3089\u306a\u3044\u306a\u300d\u3068\u601d\u3063\u305f\u6642\u3001\u307e\u305a<code>ping 8.8.8.8<\/code>\uff08Google\u306eDNS\u30b5\u30fc\u30d0\u30fc\uff09\u3092\u8a66\u3057\u305f\u7d4c\u9a13\u304c\u3042\u308b\u65b9\u3082\u591a\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<h3>ping\u306e\u88cf\u5074\u306e\u4ed5\u7d44\u307f\uff1a\u300c\u5143\u6c17\u3067\u3059\u304b\uff1f\u300d\u306e\u547c\u3073\u304b\u3051<\/h3>\n<p><code>ping<\/code>\u30b3\u30de\u30f3\u30c9\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001\u5185\u90e8\u3067\u306fICMP\u3092\u4f7f\u3063\u305f\u30b7\u30f3\u30d7\u30eb\u306a\u3084\u308a\u53d6\u308a\u304c\u884c\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ol>\n<li><strong>[\u9001\u4fe1\u5143PC] ICMP\u30a8\u30b3\u30fc\u8981\u6c42\uff08Echo Request\uff09<\/strong>:<br \/>\n<code>ping 8.8.8.8<\/code> \u3092\u5b9f\u884c\u3059\u308b\u3068\u3001\u9001\u4fe1\u5143PC\u306f\u300c<strong>ICMP \u30a8\u30b3\u30fc\u8981\u6c42\uff08\u30bf\u30a4\u30d78\uff09<\/strong>\u300d\u3068\u3044\u3046\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u76f8\u624b\u306b\u5bfe\u3057\u3066\u300c\u5143\u6c17\u3067\u3059\u304b\uff1f\u305d\u3053\u306b\u3044\u307e\u3059\u304b\uff1f\u300d\u3068\u547c\u3073\u304b\u3051\u3066\u3044\u308b\u3088\u3046\u306a\u3082\u306e\u3067\u3059\u3002\u3053\u306eICMP\u30e1\u30c3\u30bb\u30fc\u30b8\u3092IP\u30d1\u30b1\u30c3\u30c8\u306b\u683c\u7d0d\u3057\u30018.8.8.8\u5b9b\u306b\u9001\u4fe1\u3057\u307e\u3059\u3002<\/li>\n<li><strong>[\u5b9b\u5148\u30b5\u30fc\u30d0\u30fc] ICMP\u30a8\u30b3\u30fc\u5fdc\u7b54\uff08Echo Reply\uff09<\/strong>:<br \/>\n\u30a8\u30b3\u30fc\u8981\u6c42\u3092\u53d7\u3051\u53d6\u3063\u305f\u30b5\u30fc\u30d0\u30fc\uff088.8.8.8\uff09\u306f\u3001\u305d\u306e\u8fd4\u4e8b\u3068\u3057\u3066\u300c<strong>ICMP \u30a8\u30b3\u30fc\u5fdc\u7b54\uff08\u30bf\u30a4\u30d70\uff09<\/strong>\u300d\u3068\u3044\u3046\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u300c\u306f\u3044\u3001\u5143\u6c17\u3067\u3059\u3088\u3002\u3053\u3053\u306b\u3044\u307e\u3059\u300d\u3068\u8fd4\u4e8b\u3092\u3057\u3066\u3044\u308b\u30a4\u30e1\u30fc\u30b8\u3067\u3059\u3002\u3053\u306e\u30d1\u30b1\u30c3\u30c8\u3092\u3001\u9001\u4fe1\u5143PC\u306b\u8fd4\u4fe1\u3057\u307e\u3059\u3002<\/li>\n<li><strong>[\u9001\u4fe1\u5143PC] \u758e\u901a\u78ba\u8a8d\u306e\u5b8c\u4e86<\/strong>:<br \/>\n\u9001\u4fe1\u5143PC\u304c\u30a8\u30b3\u30fc\u5fdc\u7b54\u3092\u7121\u4e8b\u306b\u53d7\u4fe1\u3067\u304d\u308c\u3070\u3001\u300c\u76f8\u624b\u3068\u306e\u9593\u3067\u6b63\u5e38\u306b\u901a\u4fe1\u304c\u3067\u304d\u308b\u300d\u3068\u5224\u65ad\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ol>\n<p>\u3053\u306e\u30ad\u30e3\u30c3\u30c1\u30dc\u30fc\u30eb\u304c\u6210\u529f\u3059\u308b\u304b\u3069\u3046\u304b\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u57fa\u672c\u7684\u306a\u63a5\u7d9a\u6027\u3092\u78ba\u8a8d\u3057\u3066\u3044\u308b\u306e\u3067\u3059\u3002<\/p>\n<p><code>ping<\/code>\u306e\u5b9f\u884c\u7d50\u679c\u306b\u8868\u793a\u3055\u308c\u308b<code>time=...ms<\/code>\u306f\u3001\u3053\u306e\u5f80\u5fa9\u306b\u304b\u304b\u3063\u305f\u6642\u9593\uff08RTT\uff09\u3092\u3001<code>TTL<\/code>\u306f\u30d1\u30b1\u30c3\u30c8\u304c\u7834\u68c4\u3055\u308c\u308b\u307e\u3067\u306e\u6b8b\u308a\u6642\u9593\uff08\u7d4c\u7531\u3067\u304d\u308b\u30eb\u30fc\u30bf\u30fc\u306e\u6570\uff09\u3092\u793a\u3057\u3066\u304a\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u72b6\u614b\u3092\u8a3a\u65ad\u3059\u308b\u4e0a\u3067\u91cd\u8981\u306a\u60c5\u5831\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>ICMPv6\u3068\u8fd1\u96a3\u63a2\u7d22(NDP)\uff5cIPv6\u3067\u9032\u5316\u3057\u305f\u30a2\u30c9\u30ec\u30b9\u89e3\u6c7a\u3068\u901a\u77e5\u6a5f\u80fd<\/h2>\n<p>\u3053\u308c\u307e\u3067\u89e3\u8aac\u3057\u3066\u304d\u305f\u5185\u5bb9\u306f\u3001\u4e3b\u306b\u73fe\u5728\u4e3b\u6d41\u3067\u3042\u308bIPv4\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4e16\u754c\u306e\u8a71\u3067\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306e\u4e16\u754c\u306f\u3001IP\u30a2\u30c9\u30ec\u30b9\u67af\u6e07\u306e\u554f\u984c\u306b\u5bfe\u5fdc\u3059\u308b\u305f\u3081\u3001\u6b21\u4e16\u4ee3\u306e\u898f\u683c\u3067\u3042\u308bIPv6\u3078\u306e\u79fb\u884c\u304c\u9032\u3093\u3067\u3044\u307e\u3059\u3002<\/p>\n<p>\u305d\u3057\u3066\u3001IPv6\u306e\u4e16\u754c\u3067\u306f\u3001\u3053\u308c\u307e\u3067\u5b66\u3093\u3067\u304d\u305f\u30eb\u30fc\u30eb\u304c\u5927\u304d\u304f\u5909\u308f\u308a\u307e\u3059\u3002\u7279\u306b\u5927\u304d\u306a\u5909\u66f4\u70b9\u306f\u300c<strong>ARP\u306e\u5ec3\u6b62<\/strong>\u300d\u3067\u3059\u3002\u3067\u306f\u3001IPv6\u3067\u306f\u3069\u306e\u3088\u3046\u306b\u3057\u3066IP\u30a2\u30c9\u30ec\u30b9\u304b\u3089MAC\u30a2\u30c9\u30ec\u30b9\u3092\u8abf\u3079\u3066\u3044\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n<p>\u305d\u306e\u7b54\u3048\u306f\u3001IPv4\u306eICMP\u3092\u5927\u5e45\u306b\u6a5f\u80fd\u62e1\u5f35\u3057\u305f\u300c<strong>ICMPv6<\/strong>\u300d\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>ARP\u306f\u306a\u305c\u5ec3\u6b62\uff1f ICMPv6\u3078\u306e\u6a5f\u80fd\u7d71\u5408<\/h3>\n<p>IPv6\u3067\u306f\u3001ARP\u3068\u3044\u3046\u72ec\u7acb\u3057\u305f\u30d7\u30ed\u30c8\u30b3\u30eb\u306f\u5b58\u5728\u3057\u307e\u305b\u3093\u3002\u4ee3\u308f\u308a\u306b\u3001ARP\u304c\u62c5\u3063\u3066\u3044\u305f\u30a2\u30c9\u30ec\u30b9\u89e3\u6c7a\u306e\u6a5f\u80fd\u306f\u3001\u3059\u3079\u3066ICMPv6\u306e\u6a5f\u80fd\u306e\u4e00\u90e8\u3068\u3057\u3066\u7d71\u5408\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n<p>\u3053\u308c\u306f\u3001\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u7a2e\u985e\u3092\u6e1b\u3089\u3057\u3066\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4ed5\u7d44\u307f\u3092\u3088\u308a\u30b7\u30f3\u30d7\u30eb\u306b\u3057\u3001IPv6\u306b\u95a2\u9023\u3059\u308b\u6a5f\u80fd\u3092\u4e2d\u5fc3\u306b\u636e\u3048\u308b\u3068\u3044\u3046\u8a2d\u8a08\u601d\u60f3\u306b\u57fa\u3065\u3044\u3066\u3044\u307e\u3059\u3002<br \/>\nICMPv6\u306f\u3001\u5358\u306a\u308bIP\u306e\u300c\u304a\u52a9\u3051\u5f79\u300d\u304b\u3089\u3001IPv6\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u6839\u5e79\u3092\u652f\u3048\u308b<strong>\u5fc5\u9808\u306e\u30d7\u30ed\u30c8\u30b3\u30eb<\/strong>\u3078\u3068\u6607\u683c\u3057\u305f\u306e\u3067\u3059\u3002<\/p>\n<h3>\u8fd1\u96a3\u63a2\u7d22\u30d7\u30ed\u30c8\u30b3\u30eb(NDP) \uff1aARP\u306e\u6b63\u7d71\u5f8c\u7d99\u8005<\/h3>\n<p>IPv6\u3067\u30a2\u30c9\u30ec\u30b9\u89e3\u6c7a\u3092\u62c5\u3046\u306e\u306f\u3001ICMPv6\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\u6a5f\u80fd\u3092\u5229\u7528\u3057\u305f<strong>\u8fd1\u96a3\u63a2\u7d22\u30d7\u30ed\u30c8\u30b3\u30eb\uff08NDP: Neighbor Discovery Protocol\uff09<\/strong>\u3067\u3059\u3002NDP\u306f\u3001IPv4\u306b\u304a\u3051\u308bARP\u306e\u6a5f\u80fd\u306e\u307b\u304b\u3001\u30eb\u30fc\u30bf\u30fc\u306e\u767a\u898b\u306a\u3069\u8907\u6570\u306e\u5f79\u5272\u3092\u3053\u306a\u3057\u307e\u3059\u3002<\/p>\n<p>NDP\u306b\u3088\u308b\u30a2\u30c9\u30ec\u30b9\u89e3\u6c7a\u306e\u6d41\u308c\u306f\u3001ARP\u3068\u975e\u5e38\u306b\u3088\u304f\u4f3c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ol>\n<li><strong>\u8fd1\u96a3\u8981\u8acb\uff08NS: Neighbor Solicitation\uff09\u30e1\u30c3\u30bb\u30fc\u30b8<\/strong>\n<ul>\n<li>IPv4\u306e\u300cARP\u30ea\u30af\u30a8\u30b9\u30c8\u300d\u306b\u76f8\u5f53\u3057\u307e\u3059\u3002<\/li>\n<li>MAC\u30a2\u30c9\u30ec\u30b9\u3092\u77e5\u308a\u305f\u3044\u6a5f\u5668\u304c\u3001\u300c\u3053\u306eIPv6\u30a2\u30c9\u30ec\u30b9 <code>(\u4f8b: 2001:db8::1)<\/code> \u3092\u6301\u3063\u3066\u3044\u308b\u30ce\u30fc\u30c9\u306f\u3001MAC\u30a2\u30c9\u30ec\u30b9\u3092\u5fdc\u7b54\u3057\u3066\u304f\u3060\u3055\u3044\u300d\u3068\u3044\u3046\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u8fd1\u96a3\u901a\u77e5\uff08NA: Neighbor Advertisement\uff09\u30e1\u30c3\u30bb\u30fc\u30b8<\/strong>\n<ul>\n<li>IPv4\u306e\u300cARP\u30ea\u30d7\u30e9\u30a4\u300d\u306b\u76f8\u5f53\u3057\u307e\u3059\u3002<\/li>\n<li>NS\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u53d7\u3051\u53d6\u3063\u305f\u6a5f\u5668\u304c\u3001\u300c\u306f\u3044\u3001\u305d\u306eIPv6\u30a2\u30c9\u30ec\u30b9\u306f\u79c1\u3067\u3059\u3002\u79c1\u306eMAC\u30a2\u30c9\u30ec\u30b9\u306f <code>XX-XX-..<\/code> \u3067\u3059\u300d\u3068\u5fdc\u7b54\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u3084\u308a\u53d6\u308a\u306e\u540d\u524d\u306f\u5909\u308f\u308a\u307e\u3057\u305f\u304c\u3001\u300c\u554f\u3044\u5408\u308f\u305b\u300d\u3068\u300c\u5fdc\u7b54\u300d\u306b\u3088\u3063\u3066\u30a2\u30c9\u30ec\u30b9\u3092\u89e3\u6c7a\u3059\u308b\u3068\u3044\u3046\u57fa\u672c\u7684\u306a\u8003\u3048\u65b9\u306f\u540c\u3058\u3067\u3059\u3002<\/p>\n<h3>ICMPv6\u306b\u96c6\u7d04\u3055\u308c\u305f\u591a\u5f69\u306a\u6a5f\u80fd<\/h3>\n<p>NDP\u304c\u62c5\u3046\u306e\u306f\u30a2\u30c9\u30ec\u30b9\u89e3\u6c7a\u3060\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002ICMPv6\u306f\u3001IPv4\u3067\u306f\u8907\u6570\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u5206\u304b\u308c\u3066\u3044\u305f\u6a5f\u80fd\u3092\u81ea\u8eab\u306b\u96c6\u7d04\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>IPv4\u3067\u306e\u6a5f\u80fd<\/th>\n<th>\u5bfe\u5fdc\u3059\u308bIPv6\u306e\u6a5f\u80fd (\u4e3b\u306bICMPv6\/NDP)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>ARP<\/strong>\uff08\u30a2\u30c9\u30ec\u30b9\u89e3\u6c7a\uff09<\/td>\n<td><strong>\u8fd1\u96a3\u8981\u8acb(NS) \/ \u8fd1\u96a3\u901a\u77e5(NA)<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>ICMP\u30eb\u30fc\u30bf\u30fc\u767a\u898b<\/strong><\/td>\n<td><strong>\u30eb\u30fc\u30bf\u30fc\u8981\u8acb(RS) \/ \u30eb\u30fc\u30bf\u30fc\u5e83\u544a(RA)<\/strong><\/td>\n<\/tr>\n<tr>\n<td>\u91cd\u8907\u30a2\u30c9\u30ec\u30b9\u691c\u51fa<\/td>\n<td>\u306a\u3057\uff08\u624b\u52d5\u78ba\u8a8d\uff09<\/td>\n<\/tr>\n<tr>\n<td><strong>ping<\/strong> (\u758e\u901a\u78ba\u8a8d)<\/td>\n<td>ICMPv4<\/td>\n<td><strong>\u30a8\u30b3\u30fc\u8981\u6c42\/\u5fdc\u7b54 (ICMPv6\u7248)<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u7279\u7b46\u3059\u3079\u304d\u306f\u3001IPv6\u306e\u5927\u304d\u306a\u7279\u5fb4\u3067\u3042\u308b\u300c<strong>\u30a2\u30c9\u30ec\u30b9\u81ea\u52d5\u8a2d\u5b9a<\/strong>\u300d\u3092\u652f\u3048\u3066\u3044\u308b\u70b9\u3067\u3059\u3002PC\u306a\u3069\u306e\u6a5f\u5668\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3059\u308b\u3068\u3001\u307e\u305a\u30eb\u30fc\u30bf\u30fc\u306b\u5bfe\u3057\u3066\u300c\u30eb\u30fc\u30bf\u30fc\u5e83\u544a\uff08RA\uff09\u300d\u3092\u8981\u6c42\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u60c5\u5831\uff08\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u306a\u3069\uff09\u3092\u53d7\u3051\u53d6\u3063\u3066\u81ea\u8eab\u306eIPv6\u30a2\u30c9\u30ec\u30b9\u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n<p>\u3055\u3089\u306b\u3001\u305d\u306e\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u3046\u524d\u306b\u300c<strong>\u91cd\u8907\u30a2\u30c9\u30ec\u30b9\u691c\u51fa\uff08DAD\uff09<\/strong>\u300d\u3092\u884c\u3044\u3001\u300c\u3053\u306e\u30a2\u30c9\u30ec\u30b9\u3001\u8ab0\u304b\u4f7f\u3063\u3066\u3044\u307e\u305b\u3093\u304b\uff1f\u300d\u3068\u8fd1\u96a3\u8981\u8acb\uff08NS\uff09\u3092\u6295\u3052\u3066\u3001\u30e6\u30cb\u30fc\u30af\u3067\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u91cd\u8981\u306a\u30d7\u30ed\u30bb\u30b9\u3082\u3059\u3079\u3066ICMPv6\/NDP\u304c\u62c5\u3063\u3066\u3044\u308b\u306e\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u3088\u3046\u306bICMPv6\u306f\u3001IPv4\u6642\u4ee3\u306eICMP\u3068ARP\u306e\u5f79\u5272\u3092\u7d71\u5408\u30fb\u62e1\u5f35\u3057\u305f\u3001IPv6\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u4e0d\u53ef\u6b20\u306a\u3001\u3088\u308a\u4e2d\u5fc3\u7684\u3067\u5f37\u529b\u306a\u30d7\u30ed\u30c8\u30b3\u30eb\u3078\u3068\u9032\u5316\u3092\u9042\u3052\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u307e\u3068\u3081\uff1aMAC\u30a2\u30c9\u30ec\u30b9\u304b\u3089ICMPv6\u307e\u3067\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u901a\u4fe1\u306e\u5168\u4f53\u50cf<\/h2>\n<p>\u672c\u8a18\u4e8b\u3067\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u57fa\u790e\u3092\u7406\u89e3\u3059\u308b\u4e0a\u3067\u907f\u3051\u3066\u306f\u901a\u308c\u306a\u3044\u300cMAC\u30a2\u30c9\u30ec\u30b9\u300d\u3068\u3001\u305d\u308c\u3092\u53d6\u308a\u5dfb\u304f\u91cd\u8981\u306a\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u3064\u3044\u3066\u3001\u9806\u3092\u8ffd\u3063\u3066\u89e3\u8aac\u3057\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n<p>\u6700\u5f8c\u306b\u3001\u3053\u308c\u307e\u3067\u306e\u5185\u5bb9\u306e\u30ad\u30fc\u30dd\u30a4\u30f3\u30c8\u3092\u632f\u308a\u8fd4\u308a\u307e\u3057\u3087\u3046\u3002<\/p>\n<ul>\n<li><strong>MAC\u30a2\u30c9\u30ec\u30b9\u306f\u300c\u6a5f\u5668\u306e\u80cc\u756a\u53f7\u300d<\/strong>: \u4e16\u754c\u306b\u4e00\u3064\u3060\u3051\u306e\u7269\u7406\u7684\u306a\u30a2\u30c9\u30ec\u30b9\u3067\u3001\u540c\u3058\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\uff08\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\uff09\u3067\u901a\u4fe1\u76f8\u624b\u3092\u6b63\u78ba\u306b\u7279\u5b9a\u3057\u307e\u3059\u3002\u524d\u534a\u306f\u30e1\u30fc\u30ab\u30fc\u3092\u793a\u3059\u30d9\u30f3\u30c0\u30fcID\u3067\u3059\u3002<\/li>\n<li><strong>ARP\u306f\u300c\u30a2\u30c9\u30ec\u30b9\u89e3\u6c7a\u306e\u63a2\u5075\u300d<\/strong>: IP\u30a2\u30c9\u30ec\u30b9\uff08\u4f4f\u6240\uff09\u306f\u308f\u304b\u308b\u304cMAC\u30a2\u30c9\u30ec\u30b9\uff08\u540d\u524d\uff09\u304c\u308f\u304b\u3089\u306a\u3044\u6642\u306b\u3001\u300c\u3053\u306eIP\u30a2\u30c9\u30ec\u30b9\u306e\u4eba\u306f\u3044\u307e\u305b\u3093\u304b\uff1f\u300d\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u554f\u3044\u5408\u308f\u305b\u3001MAC\u30a2\u30c9\u30ec\u30b9\u3092\u7279\u5b9a\u3059\u308b\u91cd\u8981\u306a\u5f79\u5272\u3092\u62c5\u3044\u307e\u3059\u3002<\/li>\n<li><strong>ARP\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u300c\u8ce2\u3044\u96fb\u8a71\u5e33\u300d<\/strong>: \u4e00\u5ea6\u8abf\u3079\u305fIP\u30a2\u30c9\u30ec\u30b9\u3068MAC\u30a2\u30c9\u30ec\u30b9\u306e\u5bfe\u5fdc\u3092\u4e00\u6642\u7684\u306b\u8a18\u61b6\u3057\u3066\u304a\u304f\u3053\u3068\u3067\u3001\u7121\u99c4\u306aARP\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u6e1b\u3089\u3057\u3001\u901a\u4fe1\u306e\u52b9\u7387\u3068\u901f\u5ea6\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002<\/li>\n<li><strong>ICMP\u306f\u300c\u901a\u4fe1\u306e\u30c9\u30af\u30bf\u30fc\u300d<\/strong>: IP\u901a\u4fe1\u3092\u88dc\u52a9\u3057\u3001\u30a8\u30e9\u30fc\u901a\u77e5\uff08\u5b9b\u5148\u5230\u9054\u4e0d\u80fd\u306a\u3069\uff09\u3084\u758e\u901a\u78ba\u8a8d\uff08ping\uff09\u3092\u884c\u3046\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30e9\u30d6\u30eb\u306e\u6700\u521d\u306e\u5207\u308a\u5206\u3051\u306b\u6b20\u304b\u305b\u307e\u305b\u3093\u3002<\/li>\n<li><strong>ICMPv6\u306f\u300c\u9032\u5316\u3057\u305f\u5f8c\u7d99\u8005\u300d<\/strong>: \u6b21\u4e16\u4ee3\u306eIPv6\u3067\u306f\u3001ARP\u306e\u6a5f\u80fd\u304cICMPv6\u306b\u7d71\u5408\u3055\u308c\u307e\u3057\u305f\u3002\u30a2\u30c9\u30ec\u30b9\u89e3\u6c7a\u304b\u3089\u91cd\u8907\u30a2\u30c9\u30ec\u30b9\u306e\u691c\u51fa\u307e\u3067\u3053\u306a\u3057\u3001IPv6\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4e2d\u6838\u3092\u62c5\u3046\u3001\u3088\u308a\u5f37\u529b\u3067\u4e2d\u5fc3\u7684\u306a\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002<\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\u306e\u6280\u8853\u306f\u4e00\u3064\u3072\u3068\u3064\u304c\u72ec\u7acb\u3057\u3066\u3044\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u4e92\u3044\u306b\u5bc6\u63a5\u306b\u9023\u643a\u3057\u5408\u3063\u3066\u3001\u79c1\u305f\u3061\u304c\u666e\u6bb5\u4f55\u6c17\u306a\u304f\u884c\u3063\u3066\u3044\u308b\u30c7\u30fc\u30bf\u901a\u4fe1\u3092\u652f\u3048\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3092\u901a\u3058\u3066\u3001\u70b9\u3068\u70b9\u3067\u3057\u304b\u306a\u304b\u3063\u305f\u77e5\u8b58\u304c\u7dda\u3067\u3064\u306a\u304c\u308a\u3001\u300cPC\u306e\u96fb\u6e90\u3092\u5165\u308c\u3066\u304b\u3089Web\u30b5\u30a4\u30c8\u304c\u8868\u793a\u3055\u308c\u308b\u307e\u3067\u306e\u88cf\u5074\u300d\u304c\u3001\u3088\u308a\u5177\u4f53\u7684\u306b\u30a4\u30e1\u30fc\u30b8\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u308c\u3070\u5e78\u3044\u3067\u3059\u3002<\/p>\n<p>\u3053\u3053\u3067\u5f97\u305f\u57fa\u790e\u77e5\u8b58\u306f\u3001\u57fa\u672c\u60c5\u5831\u30fb\u5fdc\u7528\u60c5\u5831\u6280\u8853\u8005\u8a66\u9a13\u306e\u5408\u683c\u306f\u3082\u3061\u308d\u3093\u3001\u5b9f\u52d9\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30c8\u30e9\u30d6\u30eb\u306b\u76f4\u9762\u3057\u305f\u969b\u306e\u3001\u8ad6\u7406\u7684\u306a\u601d\u8003\u306e\u571f\u53f0\u3068\u306a\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4e16\u754c\u3092\u65c5\u3059\u308b\u30c7\u30fc\u30bf\u306b\u3068\u3063\u3066\u3001\u300c\u4f4f\u6240\u300d\u306b\u3042\u305f\u308bIP\u30a2\u30c9\u30ec\u30b9\u306f\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u30c7\u30fc\u30bf\u304c\u6700\u7d42\u7684\u306a\u76ee\u7684\u5730\u3001\u3064\u307e\u308a\u3042\u306a\u305f\u306e\u30d1\u30bd\u30b3\u30f3\u3084\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u306b\u305f\u3069\u308a\u7740\u304f\u306b\u306f\u3001\u3082\u3046\u4e00\u3064\u306e\u91cd\u8981\u306a\u30a2\u30c9\u30ec\u30b9\u304c\u5fc5 &#8230; <\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","columnck":"","stmeta_robots":"index, follow","st_titlewords":"","st_title_extra":"","st_keywords":"","st_description":"","st_display_ad_mark":"","st_display_ad_mark_hide":"","textcopyck":"","st_copyright":"","st_copyurl":"","eyecatch_set":"","st_youtube_url":"","st_youtube_eyecatch":"","headerwidget_set":"","updatewidget_set":"","kanrenwidget_set":"","ikkatuwidget_set":"","koukoku_set":"","auto_adsense_koukoku_set":"","st_redirect":"","st_redirect_url_as_canonical":"","st_redirect_pvm_do_not_track":"","post_data_updatewidget_set":"","st_post_header_under_bg":"","st_twitter_tag":"","affinger_note":"","rankdisplayck":"","st_head_code":"","st_footer_code":"","st_post_header_under_code":"","_st_toc_override":false,"_st_toc_settings":[]},"categories":[3],"tags":[5],"class_list":["post-5578","post","type-post","status-publish","format-standard","hentry","category-ipa","tag-5"],"_links":{"self":[{"href":"https:\/\/sky-peace.net\/certified\/wp-json\/wp\/v2\/posts\/5578","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sky-peace.net\/certified\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sky-peace.net\/certified\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sky-peace.net\/certified\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/sky-peace.net\/certified\/wp-json\/wp\/v2\/comments?post=5578"}],"version-history":[{"count":0,"href":"https:\/\/sky-peace.net\/certified\/wp-json\/wp\/v2\/posts\/5578\/revisions"}],"wp:attachment":[{"href":"https:\/\/sky-peace.net\/certified\/wp-json\/wp\/v2\/media?parent=5578"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sky-peace.net\/certified\/wp-json\/wp\/v2\/categories?post=5578"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sky-peace.net\/certified\/wp-json\/wp\/v2\/tags?post=5578"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}