{"id":5589,"date":"2025-08-09T23:39:30","date_gmt":"2025-08-09T14:39:30","guid":{"rendered":"https:\/\/sky-peace.net\/?p=5589"},"modified":"2025-08-09T23:39:30","modified_gmt":"2025-08-09T14:39:30","slug":"lan-ethernet-wifi","status":"publish","type":"post","link":"https:\/\/sky-peace.net\/certified\/lan-ethernet-wifi\/","title":{"rendered":"LAN\/WAN\u3001\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3001Wi-Fi\u3001VLAN\u306e\u9055\u3044\u3068\u306f\uff1f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u57fa\u672c\u3092OSI\u968e\u5c64\u3067\u30b9\u30c3\u30ad\u30ea\u6574\u7406"},"content":{"rendered":"<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4e16\u754c\u306b\u306f\u3001LAN\u3084WAN\u3001\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306bWi-Fi\u3068\u3044\u3063\u305f\u4f3c\u305f\u3088\u3046\u306a\u8a00\u8449\u304c\u305f\u304f\u3055\u3093\u767b\u5834\u3057\u3001\u307e\u308b\u3067\u8907\u96d1\u306a\u8ff7\u8def\u306e\u3088\u3046\u3067\u3059\u3088\u306d\u3002\u7279\u306bIT\u7cfb\u306e\u8cc7\u683c\u52c9\u5f37\u3092\u3057\u3066\u3044\u308b\u3068\u3001\u300c\u3053\u308c\u3089\u306e\u9055\u3044\u306f\u4f55\uff1f\u300d\u300c\u3069\u306e\u6280\u8853\u304c\u3069\u306e\u5834\u9762\u3067\u4f7f\u308f\u308c\u308b\u306e\uff1f\u300d\u3068\u982d\u304c\u3053\u3093\u304c\u3089\u304c\u3063\u3066\u3057\u307e\u3046\u3053\u3068\u3082\u5c11\u306a\u304f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u305d\u308c\u306f\u4f8b\u3048\u308b\u306a\u3089\u3001\u300c\u5bb6\u306e\u4e2d\u306e\u9593\u53d6\u308a\u56f3\u300d\u3068\u300c\u90fd\u5e02\u3092\u7d50\u3076\u9ad8\u901f\u9053\u8def\u7db2\u300d\u3001\u300c\u9053\u8def\u306e\u8217\u88c5\u30eb\u30fc\u30eb\u300d\u3092\u4e00\u5ea6\u306b\u7406\u89e3\u3057\u3088\u3046\u3068\u3057\u3066\u3044\u308b\u3088\u3046\u306a\u3082\u306e\u3002\u305d\u308c\u305e\u308c<strong>\u5f79\u5272<\/strong>\u3084<strong>\u898f\u6a21\uff08\u5b88\u5099\u7bc4\u56f2\uff09<\/strong>\u304c\u5168\u304f\u7570\u306a\u308b\u305f\u3081\u3001\u4e00\u3064\u305a\u3064\u6574\u7406\u3057\u306a\u3044\u3068\u6df7\u4e71\u3057\u3066\u3057\u307e\u3046\u306e\u306f\u5f53\u7136\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u305d\u3093\u306a\u8907\u96d1\u306b\u898b\u3048\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6280\u8853\u306e\u5730\u56f3\u3092\u3001\u4e00\u679a\u305a\u3064\u4e01\u5be7\u306b\u89e3\u304d\u307b\u3050\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>LAN\u3068WAN<\/strong>\u3068\u3044\u3046\u5927\u304d\u306a\u67a0\u7d44\u307f\uff08\u30a8\u30ea\u30a2\u306e\u9055\u3044\uff09<\/li>\n<li>\u305d\u308c\u3092\u5b9f\u73fe\u3059\u308b\u5177\u4f53\u7684\u306a\u6280\u8853\u3067\u3042\u308b<strong>\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3084Wi-Fi<\/strong>\uff08\u901a\u4fe1\u306e\u624b\u6bb5\uff09<\/li>\n<li>\u3055\u3089\u306b\u306f\u5fdc\u7528\u6280\u8853\u3067\u3042\u308b<strong>\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3084VLAN<\/strong>\uff08\u4fbf\u5229\u306a\u4f7f\u3044\u65b9\uff09<\/li>\n<\/ul>\n<p>\u4e0a\u8a18\u306e\u3088\u3046\u306b\u3001\u57fa\u672c\u304b\u3089\u5fdc\u7528\u3078\u3068\u9806\u3092\u8ffd\u3063\u3066\u3001\u305d\u308c\u305e\u308c\u306e\u5f79\u5272\u3068\u95a2\u4fc2\u6027\u3092\u30b7\u30f3\u30d7\u30eb\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u8aad\u307f\u7d42\u3048\u308b\u9803\u306b\u306f\u3001\u982d\u306e\u4e2d\u306b\u3042\u3063\u305f\u30e2\u30e4\u30e2\u30e4\u304c\u6674\u308c\u3001\u300c\u306a\u308b\u307b\u3069\u3001\u305d\u3046\u3044\u3046\u3053\u3068\u3060\u3063\u305f\u306e\u304b\uff01\u300d\u3068\u30b9\u30c3\u30ad\u30ea\u3068\u6574\u7406\u3055\u308c\u3066\u3044\u308b\u306f\u305a\u3067\u3059\u3002\u4e00\u7dd2\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4e16\u754c\u3092\u63a2\u691c\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>&nbsp;<\/p>\n<hr \/>\n<h2>LAN\u3068WAN\u306e\u9055\u3044\u3068\u306f\uff1f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u57fa\u672c\u3068\u306a\u308b\u30a8\u30ea\u30a2\u306e\u5e83\u3055\u3092\u5fb9\u5e95\u6bd4\u8f03<\/h2>\n<p>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u7406\u89e3\u3059\u308b\u7b2c\u4e00\u6b69\u306f\u3001\u305d\u306e\u300c\u30a8\u30ea\u30a2\u306e\u5e83\u3055\u300d\u306b\u7740\u76ee\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u5168\u3066\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306f\u3001\u5927\u304d\u304f\u5206\u3051\u3066<strong>LAN\uff08\u30e9\u30f3\uff09<\/strong>\u3068<strong>WAN\uff08\u30ef\u30f3\uff09<\/strong>\u306e2\u7a2e\u985e\u306b\u5206\u985e\u3067\u304d\u307e\u3059\u3002\u306a\u305c\u306a\u3089\u3001\u6280\u8853\u7684\u306b\u300c\u3069\u3053\u307e\u3067\u306e\u7bc4\u56f2\u3092\u30ab\u30d0\u30fc\u3059\u308b\u306e\u304b\u300d\u304c\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u76ee\u7684\u3084\u4ed5\u7d44\u307f\u3092\u6c7a\u5b9a\u3065\u3051\u308b\u6700\u3082\u57fa\u672c\u7684\u306a\u8981\u7d20\u3060\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>\u307e\u305a\u306f\u3001\u3053\u306e2\u3064\u306e\u9055\u3044\u3092\u3001\u5177\u4f53\u4f8b\u3092\u4ea4\u3048\u306a\u304c\u3089\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>LAN (Local Area Network) \u3068\u306f\uff1f \u2015 \u300c\u5efa\u7269\u5185\u300d\u306e\u9589\u3058\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af<\/h3>\n<p>LAN\u306f\u3001<strong>\u300cLocal\uff08\u9650\u5b9a\u7684\u306a\uff09 Area\uff08\u7bc4\u56f2\u306e\uff09 Network\u300d<\/strong>\u306e\u7565\u3067\u3001\u305d\u306e\u540d\u306e\u901a\u308a\u3001\u81ea\u5b85\u3084\u30aa\u30d5\u30a3\u30b9\u30d3\u30eb\u3001\u5b66\u6821\u306e\u30ad\u30e3\u30f3\u30d1\u30b9\u5185\u3068\u3044\u3063\u305f<strong>\u9650\u5b9a\u3055\u308c\u305f\u7bc4\u56f2\u5185<\/strong>\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u6307\u3057\u307e\u3059\u3002<\/p>\n<div class=\"example-box\"><strong>\u3010\u8eab\u8fd1\u306a\u4f8b\u3048\uff1a\u5bb6\u5ead\u5185\u3011<\/strong>\u81ea\u5b85\u3067\u3001\u30d1\u30bd\u30b3\u30f3\u304b\u3089\u7121\u7dda\u3067\u30d7\u30ea\u30f3\u30bf\u30fc\u306b\u5370\u5237\u3057\u305f\u308a\u3001\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3067\u64ae\u5f71\u3057\u305f\u5199\u771f\u3092Wi-Fi\u7d4c\u7531\u3067\u30c6\u30ec\u30d3\u306b\u6620\u3057\u305f\u308a\u3059\u308b\u3001\u3042\u306e\u72b6\u614b\u304c\u307e\u3055\u306bLAN\u3067\u3059\u3002\u3053\u308c\u3089\u306e\u6a5f\u5668\u306f\u3001\u5916\u90e8\u306e\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3068\u306f\u5207\u308a\u96e2\u3055\u308c\u305f\u300c\u5bb6\u306e\u4e2d\u300d\u3068\u3044\u3046\u9589\u3058\u305f\u8f2a\u306e\u4e2d\u3067\u3001\u4e92\u3044\u306b\u30c7\u30fc\u30bf\u3092\u3084\u308a\u53d6\u308a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/div>\n<div class=\"example-box\"><strong>\u3010\u4ed5\u4e8b\u3067\u306e\u4f8b\uff1a\u30aa\u30d5\u30a3\u30b9\u3011<\/strong>\u4f1a\u793e\u306e\u540c\u3058\u30d5\u30ed\u30a2\u5185\u3067\u3001\u81ea\u5206\u306ePC\u304b\u3089\u90e8\u7f72\u306e\u5171\u6709\u30b5\u30fc\u30d0\u30fc\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u30d5\u30a1\u30a4\u30eb\u3092\u4fdd\u5b58\u3057\u305f\u308a\u3001\u540c\u50da\u3068\u30c7\u30fc\u30bf\u3092\u4ea4\u63db\u3057\u305f\u308a\u3059\u308b\u306e\u3082LAN\u306e\u304a\u304b\u3052\u3067\u3059\u3002\u7269\u7406\u7684\u306b\u8fd1\u3044\u8ddd\u96e2\u306b\u3042\u308b\u6a5f\u5668\u540c\u58eb\u3092\u9ad8\u901f\u3067\u63a5\u7d9a\u3057\u3001\u30ea\u30bd\u30fc\u30b9\uff08\u30d7\u30ea\u30f3\u30bf\u30fc\u3084\u30d5\u30a1\u30a4\u30eb\u306a\u3069\uff09\u3092\u52b9\u7387\u7684\u306b\u5171\u6709\u3059\u308b\u3053\u3068\u304cLAN\u306e\u4e3b\u306a\u76ee\u7684\u3067\u3059\u3002<\/p>\n<\/div>\n<h3>WAN (Wide Area Network) \u3068\u306f\uff1f \u2015 \u300c\u62e0\u70b9\u9593\u300d\u3092\u3064\u306a\u3050\u5e83\u5927\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af<\/h3>\n<p>WAN\u306f\u3001<strong>\u300cWide\uff08\u5e83\u5927\u306a\uff09 Area\uff08\u7bc4\u56f2\u306e\uff09 Network\u300d<\/strong>\u306e\u7565\u3067\u3001\u5730\u7406\u7684\u306b\u96e2\u308c\u305f\u5834\u6240\u306b\u3042\u308bLAN\u540c\u58eb\u3084\u3001LAN\u3068\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3092\u3064\u306a\u3050<strong>\u5e83\u7bc4\u56f2\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af<\/strong>\u3092\u6307\u3057\u307e\u3059\u3002<\/p>\n<div class=\"example-box\"><strong>\u3010\u8eab\u8fd1\u306a\u4f8b\u3048\uff1a\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3011<\/strong>\u79c1\u305f\u3061\u304c\u81ea\u5b85\uff08LAN\uff09\u304b\u3089\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3084PC\u3092\u4f7f\u3063\u3066\u3001\u30cb\u30e5\u30fc\u30b9\u30b5\u30a4\u30c8\u3092\u898b\u305f\u308a\u3001SNS\u306b\u6295\u7a3f\u3057\u305f\u308a\u3067\u304d\u308b\u306e\u306f\u3001WAN\u306e\u4ee3\u8868\u683c\u3067\u3042\u308b\u300c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u300d\u306b\u63a5\u7d9a\u3057\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002WAN\u306f\u3001\u3044\u308f\u3070\u4e16\u754c\u4e2d\u306eLAN\u3068LAN\u3092\u7d50\u3073\u3064\u3051\u308b\u3001\u5de8\u5927\u306a\u9053\u8def\u7db2\u306e\u3088\u3046\u306a\u5f79\u5272\u3092\u62c5\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<\/div>\n<div class=\"example-box\"><strong>\u3010\u4ed5\u4e8b\u3067\u306e\u4f8b\uff1a\u672c\u793e\u3068\u652f\u793e\u3011<\/strong>\u6771\u4eac\u306e\u672c\u793e\uff08LAN\uff09\u3068\u5927\u962a\u306e\u652f\u793e\uff08LAN\uff09\u304c\u3001\u304a\u4e92\u3044\u306e\u52e4\u6020\u30c7\u30fc\u30bf\u3084\u58f2\u4e0a\u60c5\u5831\u3092\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u5171\u6709\u3067\u304d\u308b\u306e\u306f\u3001\u901a\u4fe1\u4e8b\u696d\u8005\u304c\u63d0\u4f9b\u3059\u308bWAN\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3057\u3066\u30012\u3064\u306e\u62e0\u70b9\u3092\u7d50\u3093\u3067\u3044\u308b\u305f\u3081\u3067\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u3001\u7269\u7406\u7684\u306b\u9060\u304f\u96e2\u308c\u305f\u62e0\u70b9\u9593\u306e\u901a\u4fe1\u3092\u5b9f\u73fe\u3059\u308b\u306e\u304cWAN\u306e\u76ee\u7684\u3067\u3059\u3002<\/p>\n<\/div>\n<div class=\"diagram\">\n<pre>[<b>\u56f3\u89e31\uff1aLAN\u3068WAN\u306e\u30a4\u30e1\u30fc\u30b8\u56f3<\/b>]\n\n+---------------------------------+             +---------------------------------+\n|     \u5bb6 \/ \u30aa\u30d5\u30a3\u30b9 (LAN 1)       |             |   \u53cb\u4eba\u5b85 \/ \u652f\u793e (LAN 2)         |\n|                                 |             |                                 |\n|  PC --- \u30eb\u30fc\u30bf\u30fc --- \u30b9\u30de\u30db     |  &lt;--WAN--&gt;  |  PC --- \u30eb\u30fc\u30bf\u30fc --- \u30b5\u30fc\u30d0\u30fc   |\n|         |                       | (\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8) |         |                       |\n|       \u30d7\u30ea\u30f3\u30bf\u30fc                |             |       \u30d7\u30ea\u30f3\u30bf\u30fc                |\n|                                 |             |                                 |\n+---------------------------------+             +---------------------------------+\n\n<b>\u8aac\u660e\uff1a<\/b>\u5bb6\u3084\u30aa\u30d5\u30a3\u30b9\u306e\u4e2d\u3068\u3044\u3063\u305f\u9589\u3058\u305f\u7bc4\u56f2\u304c\u300cLAN\u300d\u3002\u305d\u306eLAN\u540c\u58eb\u3092\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306a\u3069\u306e\u5e83\u57df\u7db2\u3067\u3064\u306a\u3044\u3060\u3082\u306e\u304c\u300cWAN\u300d\u306e\u6982\u5ff5\u3067\u3059\u3002\n<\/pre>\n<\/div>\n<h3>\u3010\u6bd4\u8f03\u8868\u3011\u3072\u3068\u3081\u3067\u5206\u304b\u308bLAN\u3068WAN\u306e\u9055\u3044<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u6bd4\u8f03\u9805\u76ee<\/th>\n<th>LAN (Local Area Network)<\/th>\n<th>WAN (Wide Area Network)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u6b63\u5f0f\u540d\u79f0<\/strong><\/td>\n<td>Local Area Network<\/td>\n<td>Wide Area Network<\/td>\n<\/tr>\n<tr>\n<td><strong>\u65e5\u672c\u8a9e\u8a33<\/strong><\/td>\n<td>\u69cb\u5185\u901a\u4fe1\u7db2<\/td>\n<td>\u5e83\u57df\u901a\u4fe1\u7db2<\/td>\n<\/tr>\n<tr>\n<td><strong>\u901a\u4fe1\u7bc4\u56f2<\/strong><\/td>\n<td>\u9650\u5b9a\u7684\uff08\u5bb6\u3001\u30d3\u30eb\u3001\u5b66\u6821\u306a\u3069\uff09<\/td>\n<td>\u5e83\u7bc4\u56f2\uff08\u90fd\u5e02\u9593\u3001\u56fd\u5883\u3092\u8d8a\u3048\u308b\u306a\u3069\uff09<\/td>\n<\/tr>\n<tr>\n<td><strong>\u8eab\u8fd1\u306a\u4f8b<\/strong><\/td>\n<td>\u5bb6\u5ead\u5185\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3001\u793e\u5185LAN<\/td>\n<td>\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u63a5\u7d9a\u3001\u672c\u793e\u30fb\u652f\u793e\u9593\u30cd\u30c3\u30c8\u30ef\u30fc\u30af<\/td>\n<\/tr>\n<tr>\n<td><strong>\u4e3b\u306a\u76ee\u7684<\/strong><\/td>\n<td>\u6a5f\u5668\u9593\u306e\u30ea\u30bd\u30fc\u30b9\u5171\u6709<\/td>\n<td>\u96e2\u308c\u305f\u62e0\u70b9\uff08LAN\uff09\u9593\u306e\u30c7\u30fc\u30bf\u901a\u4fe1<\/td>\n<\/tr>\n<tr>\n<td><strong>\u56de\u7dda\u901f\u5ea6<\/strong><\/td>\n<td>\u4e00\u822c\u7684\u306b\u9ad8\u901f<\/td>\n<td>LAN\u3088\u308a\u306f\u4f4e\u901f\u306a\u5834\u5408\u304c\u591a\u3044<\/td>\n<\/tr>\n<tr>\n<td><strong>\u6240\u6709\u8005<\/strong><\/td>\n<td>\u500b\u4eba\u30fb\u5358\u4e00\u7d44\u7e54<\/td>\n<td>\u901a\u4fe1\u4e8b\u696d\u8005\uff08\u30ad\u30e3\u30ea\u30a2\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2>\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3068\u7121\u7ddaLAN\/Wi-Fi\u306e\u9055\u3044\uff5cLAN\u3092\u7e4b\u3050\u6709\u7dda\u30fb\u7121\u7dda\u306e\u898f\u683c\u3068OSI\u968e\u5c64<\/h2>\n<p>\u5148\u307b\u3069\u3001LAN\u3092\u300c\u5bb6\u306e\u4e2d\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u300d\u3068\u4f8b\u3048\u307e\u3057\u305f\u304c\u3001\u6b21\u306f\u305d\u306e\u5bb6\u306e\u4e2d\u3067\u300c\u3069\u306e\u3088\u3046\u306b\u30c7\u30fc\u30bf\u3092\u904b\u3076\u304b\u300d\u3068\u3044\u3046\u5177\u4f53\u7684\u306a<strong>\u65b9\u6cd5\uff08=\u901a\u4fe1\u898f\u683c\uff09<\/strong>\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002LAN\u3092\u5b9f\u73fe\u3059\u308b\u898f\u683c\u306e\u4ee3\u8868\u683c\u304c\u3001\u6709\u7dda\u306e<strong>\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\uff08Ethernet\uff09<\/strong>\u3068\u3001\u7121\u7dda\u306e<strong>\u7121\u7ddaLAN\uff08Wi-Fi\uff09<\/strong>\u3067\u3059\u3002<\/p>\n<p>\u306a\u305c\u8907\u6570\u306e\u898f\u683c\u304c\u3042\u308b\u304b\u3068\u3044\u3046\u3068\u3001\u5229\u7528\u30b7\u30fc\u30f3\u306b\u3088\u3063\u3066\u300c\u5b89\u5b9a\u6027\u300d\u3068\u300c\u5229\u4fbf\u6027\u300d\u306e\u3069\u3061\u3089\u3092\u91cd\u8996\u3059\u308b\u304b\u304c\u7570\u306a\u308b\u305f\u3081\u3067\u3059\u3002\u52d5\u304b\u306a\u3044\u30c7\u30b9\u30af\u30c8\u30c3\u30d7PC\u306b\u306f\u5b89\u5b9a\u3057\u305f\u6709\u7dda\u3092\u3001\u6301\u3061\u6b69\u304f\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u306b\u306f\u4fbf\u5229\u306a\u7121\u7dda\u3092\u3001\u3068\u3044\u3046\u3088\u3046\u306b\u9069\u6750\u9069\u6240\u3067\u4f7f\u3044\u5206\u3051\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8 (Ethernet) \u3068\u306f\uff1f \u2015 \u6709\u7dda\u63a5\u7d9a\u306e\u7d76\u5bfe\u7684\u738b\u8005<\/h3>\n<p>\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306f\u3001<strong>LAN\u30b1\u30fc\u30d6\u30eb\u3092\u4f7f\u3063\u3066\u6a5f\u5668\u3092\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3059\u308b<\/strong>\u305f\u3081\u306e\u3001\u6700\u3082\u666e\u53ca\u3057\u3066\u3044\u308b<strong>\u6709\u7ddaLAN\u898f\u683c<\/strong>\u3067\u3059\u3002\u79c1\u305f\u3061\u304c\u666e\u6bb5\u76ee\u306b\u3059\u308b\u3001PC\u306e\u80cc\u9762\u306b\u30ab\u30c1\u30c3\u3068\u5dee\u3057\u8fbc\u3080\u30b1\u30fc\u30d6\u30eb\uff08\u30c4\u30a4\u30b9\u30c8\u30da\u30a2\u30b1\u30fc\u30d6\u30eb\uff09\u3084\u3001\u58c1\u306eLAN\u30dd\u30fc\u30c8\u306f\u3001\u3053\u306e\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u898f\u683c\u306b\u57fa\u3065\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n<div class=\"example-box\"><strong>\u3010\u8eab\u8fd1\u306a\u4f8b\u3048\uff1a\u6c34\u9053\u7ba1\u3011<\/strong>\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306f\u3001\u5bb6\u306e\u4e2d\u306b\u5f35\u308a\u5de1\u3089\u3055\u308c\u305f\u300c\u6c34\u9053\u7ba1\u300d\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3059\u3002\u86c7\u53e3\u3092\u3072\u306d\u308c\u3070\uff08\u30b1\u30fc\u30d6\u30eb\u3092\u7e4b\u3052\u3070\uff09\u3001\u3044\u3064\u3067\u3082\u5b89\u5b9a\u3057\u305f\u52e2\u3044\u3067\u6c34\uff08\u30c7\u30fc\u30bf\uff09\u304c\u6d41\u308c\u3066\u304d\u307e\u3059\u3002\u5916\u90e8\u306e\u8981\u56e0\uff08\u96fb\u6ce2\u5e72\u6e09\u306a\u3069\uff09\u306b\u5de6\u53f3\u3055\u308c\u306b\u304f\u304f\u3001\u9ad8\u901f\u3067\u5927\u5bb9\u91cf\u306e\u30c7\u30fc\u30bf\u3092\u78ba\u5b9f\u306b\u5c4a\u3051\u3089\u308c\u308b\u306e\u304c\u6700\u5927\u306e\u5f37\u307f\u3067\u3059\u3002<\/p>\n<\/div>\n<div class=\"example-box\"><strong>\u3010\u4ed5\u4e8b\u3067\u306e\u4f8b\uff1a\u30aa\u30d5\u30a3\u30b9\u306e\u57fa\u5e79\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3011<\/strong>\u4f1a\u793e\u306e\u30b5\u30fc\u30d0\u30fc\u3084\u3001\u7d76\u5bfe\u306b\u901a\u4fe1\u304c\u9014\u5207\u308c\u3066\u306f\u56f0\u308b\u30c7\u30b9\u30af\u30c8\u30c3\u30d7PC\u3001IP\u96fb\u8a71\u306a\u3069\u306f\u3001\u57fa\u672c\u7684\u306b\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3067\u63a5\u7d9a\u3055\u308c\u307e\u3059\u3002\u901a\u4fe1\u306e\u5b89\u5b9a\u6027\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u9ad8\u3055\u304c\u6c42\u3081\u3089\u308c\u308b\u5834\u9762\u3067\u3001\u7d76\u5927\u306a\u4fe1\u983c\u6027\u3092\u8a87\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n<h3>\u7121\u7ddaLAN\u3068Wi-Fi\u3068\u306f\uff1f \u2015 \u81ea\u7531\u306a\u7121\u7dda\u63a5\u7d9a\u306e\u4ee3\u540d\u8a5e<\/h3>\n<p>\u7121\u7ddaLAN\u306f\u3001\u305d\u306e\u540d\u306e\u901a\u308a\u3001<strong>\u96fb\u6ce2\u3092\u4f7f\u3063\u3066\u6a5f\u5668\u3092\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3059\u308b<\/strong>\u305f\u3081\u306e<strong>\u7121\u7dda\u901a\u4fe1\u898f\u683c<\/strong>\u306e\u7dcf\u79f0\u3067\u3059\u3002LAN\u30b1\u30fc\u30d6\u30eb\u306e\u4ee3\u308f\u308a\u306b\u3001\u96fb\u6ce2\u3067\u30c7\u30fc\u30bf\u306e\u3084\u308a\u53d6\u308a\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u3053\u3067\u3088\u304f\u6df7\u540c\u3055\u308c\u308b\u306e\u304c<strong>\u300cWi-Fi\uff08\u30ef\u30a4\u30d5\u30a1\u30a4\uff09\u300d<\/strong>\u3068\u3044\u3046\u8a00\u8449\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>\u7121\u7ddaLAN<\/strong>\uff1a\u96fb\u6ce2\u3067LAN\u306b\u63a5\u7d9a\u3059\u308b<strong>\u300c\u6280\u8853\u306e\u7dcf\u79f0\u300d<\/strong>\u3002\uff08\u4f8b\uff1a\u300c\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u300d\u3068\u3044\u3046\u30ab\u30c6\u30b4\u30ea\uff09<\/li>\n<li><strong>Wi-Fi<\/strong>\uff1a\u6570\u3042\u308b\u7121\u7ddaLAN\u306e\u898f\u683c\u306e\u4e2d\u3067\u3082\u3001\u7279\u5b9a\u306e\u56e3\u4f53\uff08Wi-Fi Alliance\uff09\u304c\u300c\u76f8\u4e92\u63a5\u7d9a\u6027\uff08\u3069\u306e\u30e1\u30fc\u30ab\u30fc\u306e\u6a5f\u5668\u540c\u58eb\u3067\u3082\u7e4b\u304c\u308b\u3053\u3068\uff09\u300d\u3092\u30c6\u30b9\u30c8\u3057\u3001<strong>\u8a8d\u8a3c\u3057\u305f\u88fd\u54c1\u306b\u4e0e\u3048\u3089\u308c\u308b\u300c\u30d6\u30e9\u30f3\u30c9\u540d\u300d<\/strong>\u3002\uff08\u4f8b\uff1a\u300ciPhone\u300d\u3084\u300cAndroid\u300d\u3068\u3044\u3063\u305f\u88fd\u54c1\u30d6\u30e9\u30f3\u30c9\uff09<\/li>\n<\/ul>\n<p>\u73fe\u5728\u3067\u306f\u3001\u5e02\u5834\u306b\u3042\u308b\u7121\u7ddaLAN\u6a5f\u5668\u306e\u307b\u3068\u3093\u3069\u304cWi-Fi\u8a8d\u8a3c\u3092\u53d7\u3051\u3066\u3044\u308b\u305f\u3081\u3001<strong>\u300c\u7121\u7ddaLAN \u2252 Wi-Fi\u300d<\/strong>\u3068\u8003\u3048\u3066\u5dee\u3057\u652f\u3048\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<div class=\"example-box\"><strong>\u3010\u8eab\u8fd1\u306a\u4f8b\u3048\uff1a\u6247\u98a8\u6a5f\u306e\u98a8\u3011<\/strong>\u7121\u7ddaLAN\/Wi-Fi\u306f\u3001\u90e8\u5c4b\u306e\u4e2d\u3067\u9996\u3092\u632f\u308b\u300c\u6247\u98a8\u6a5f\u300d\u306e\u98a8\u306b\u4f3c\u3066\u3044\u307e\u3059\u3002\u6247\u98a8\u6a5f\uff08Wi-Fi\u30eb\u30fc\u30bf\u30fc\uff09\u304b\u3089\u9001\u3089\u308c\u308b\u98a8\uff08\u96fb\u6ce2\uff09\u304c\u90e8\u5c4b\u4e2d\u306b\u5e83\u304c\u308a\u3001\u305d\u306e\u98a8\u304c\u5f53\u305f\u308b\u3068\u3053\u308d\u306a\u3089\u3069\u3053\u3067\u3082\u6dbc\u3080\uff08\u901a\u4fe1\u3059\u308b\uff09\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u58c1\u306a\u3069\u306e\u969c\u5bb3\u7269\u304c\u3042\u3063\u305f\u308a\u3001\u6247\u98a8\u6a5f\u304b\u3089\u96e2\u308c\u305f\u308a\u3059\u308b\u3068\u98a8\u304c\u5f31\u304f\u306a\u308b\u3088\u3046\u306b\u3001\u96fb\u6ce2\u3082\u7269\u7406\u7684\u306a\u5f71\u97ff\u3092\u53d7\u3051\u3084\u3059\u3044\u3068\u3044\u3046\u7279\u5fb4\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/div>\n<h3>\u3010\u6bd4\u8f03\u8868\u3011\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3068\u7121\u7ddaLAN\uff08Wi-Fi\uff09\u306e\u7279\u6027<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u6bd4\u8f03\u9805\u76ee<\/th>\n<th>\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8 (\u6709\u7dda)<\/th>\n<th>\u7121\u7ddaLAN \/ Wi-Fi (\u7121\u7dda)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u63a5\u7d9a\u65b9\u5f0f<\/strong><\/td>\n<td><strong>\u6709\u7dda<\/strong>\uff08LAN\u30b1\u30fc\u30d6\u30eb\uff09<\/td>\n<td><strong>\u7121\u7dda<\/strong>\uff08\u96fb\u6ce2\uff09<\/td>\n<\/tr>\n<tr>\n<td><strong>\u30e1\u30ea\u30c3\u30c8<\/strong><\/td>\n<td>\u5b89\u5b9a\u6027\u3001\u9ad8\u901f\u6027\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u9ad8\u3044<\/td>\n<td>\u5229\u4fbf\u6027\u3001\u30b1\u30fc\u30d6\u30eb\u4e0d\u8981\u3001\u8907\u6570\u7aef\u672b\u306e\u540c\u6642\u63a5\u7d9a\u304c\u5bb9\u6613<\/td>\n<\/tr>\n<tr>\n<td><strong>\u30c7\u30e1\u30ea\u30c3\u30c8<\/strong><\/td>\n<td>\u914d\u7dda\u304c\u5fc5\u8981\u3001\u7269\u7406\u7684\u306a\u5834\u6240\u306b\u7e1b\u3089\u308c\u308b<\/td>\n<td>\u4e0d\u5b89\u5b9a\u306b\u306a\u308a\u3084\u3059\u3044\u3001\u901f\u5ea6\u4f4e\u4e0b\u306e\u30ea\u30b9\u30af\u3001\u96fb\u6ce2\u5e72\u6e09\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af<\/td>\n<\/tr>\n<tr>\n<td><strong>\u4e3b\u306a\u5229\u7528\u30b7\u30fc\u30f3<\/strong><\/td>\n<td>\u30c7\u30b9\u30af\u30c8\u30c3\u30d7PC\u3001\u30b5\u30fc\u30d0\u30fc\u3001IP\u96fb\u8a71<\/td>\n<td>\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3001\u30ce\u30fc\u30c8PC\u3001\u30bf\u30d6\u30ec\u30c3\u30c8\u3001IoT\u6a5f\u5668<\/td>\n<\/tr>\n<tr>\n<td><strong>OSI\u53c2\u7167\u30e2\u30c7\u30eb<\/strong><\/td>\n<td><strong>\u7b2c1\u5c64\uff08\u7269\u7406\u5c64\uff09\u3001\u7b2c2\u5c64\uff08\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\uff09<\/strong><\/td>\n<td><strong>\u7b2c1\u5c64\uff08\u7269\u7406\u5c64\uff09\u3001\u7b2c2\u5c64\uff08\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\uff09<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>OSI\u53c2\u7167\u30e2\u30c7\u30eb\u306b\u304a\u3051\u308b\u4f4d\u7f6e\u3065\u3051<\/h3>\n<p>\u91cd\u8981\u306a\u306e\u306f\u3001<strong>\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3082\u7121\u7ddaLAN\u3082\u3001OSI\u53c2\u7167\u30e2\u30c7\u30eb\u306e\u540c\u3058\u968e\u5c64\uff08\u30ec\u30a4\u30e4\uff09\u3067\u6a5f\u80fd\u3059\u308b\u6280\u8853<\/strong>\u3060\u3068\u3044\u3046\u70b9\u3067\u3059\u3002\u3069\u3061\u3089\u3082\u300c\u96a3\u63a5\u3059\u308b\u6a5f\u5668\u307e\u3067\u30c7\u30fc\u30bf\u3092\u5c4a\u3051\u308b\u300d\u3068\u3044\u3046<strong>\u7b2c2\u5c64\uff08\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\uff09<\/strong>\u306e\u5f79\u5272\u3068\u3001\u300c\u30c7\u30fc\u30bf\u3092\u96fb\u6c17\u4fe1\u53f7\u3084\u96fb\u6ce2\u306b\u5909\u63db\u3059\u308b\u300d\u3068\u3044\u3046<strong>\u7b2c1\u5c64\uff08\u7269\u7406\u5c64\uff09<\/strong>\u306e\u5f79\u5272\u3092\u62c5\u3063\u3066\u3044\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u30c7\u30fc\u30bf\u3092\u904b\u3076\u305f\u3081\u306e\u57fa\u672c\u7684\u306a\u30eb\u30fc\u30eb\u306f\u540c\u3058\u3067\u3001\u305d\u306e<strong>\u6700\u7d42\u7684\u306a\u4f1d\u9001\u624b\u6bb5\u304c\u300c\u30b1\u30fc\u30d6\u30eb\u300d\u306a\u306e\u304b\u300c\u96fb\u6ce2\u300d\u306a\u306e\u304b<\/strong>\u3001\u3068\u3044\u3046\u70b9\u304c\u9055\u3046\u3060\u3051\u306a\u306e\u3067\u3059\u3002<\/p>\n<hr \/>\n<h2>\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3068\u306f\uff1f\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u6280\u8853\u3067WAN\u3092\u69cb\u7bc9\u3059\u308b\u4ed5\u7d44\u307f\u3068\u7528\u9014<\/h2>\n<p>\u3055\u3066\u3001\u3053\u3053\u307e\u3067\u306e\u8a71\u3067\u3001\u300cLAN\u306e\u4ee3\u8868\u898f\u683c\u306f\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u300d\u300cWAN\u306f\u96e2\u308c\u305fLAN\u540c\u58eb\u3092\u3064\u306a\u3050\u3082\u306e\u300d\u3068\u7406\u89e3\u3067\u304d\u307e\u3057\u305f\u3002\u3053\u3053\u3067\u4e00\u3064\u3001\u8ce2\u3044\u30a2\u30a4\u30c7\u30a2\u304c\u751f\u307e\u308c\u307e\u3059\u3002<strong>\u300c\u4f7f\u3044\u6163\u308c\u3066\u3044\u3066\u5b89\u4fa1\u306a\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306e\u6280\u8853\u3092\u3001\u305d\u306e\u307e\u307eWAN\u3067\u3082\u4f7f\u3048\u306a\u3044\u3060\u308d\u3046\u304b\uff1f\u300d<\/strong>\u2015\u2015\u3053\u306e\u767a\u60f3\u3092\u5b9f\u73fe\u3057\u305f\u306e\u304c<strong>\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8<\/strong>\u3067\u3059\u3002<\/p>\n<p>\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306f\u3001\u901a\u4fe1\u4e8b\u696d\u8005\u304c\u63d0\u4f9b\u3059\u308b<strong>WAN\u30b5\u30fc\u30d3\u30b9\u306e\u4e00\u7a2e<\/strong>\u3067\u3059\u3002\u7269\u7406\u7684\u306b\u306f\u96e2\u308c\u3066\u3044\u308b\u8907\u6570\u306e\u62e0\u70b9\uff08LAN\uff09\u3092\u3001\u307e\u308b\u3067<strong>\u4e00\u3064\u306e\u5927\u304d\u306aLAN\u3067\u3042\u308b\u304b\u306e\u3088\u3046\u306b<\/strong>\u63a5\u7d9a\u3067\u304d\u308b\u306e\u304c\u6700\u5927\u306e\u7279\u5fb4\u3067\u3059\u3002<\/p>\n<h3>\u306a\u305c\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u304c\u5fc5\u8981\u306b\u306a\u3063\u305f\u306e\u304b\uff1f<\/h3>\n<p>\u304b\u3064\u3066\u3001\u672c\u793e\u3068\u652f\u793e\u3092\u3064\u306a\u3050\u3088\u3046\u306aWAN\u3092\u69cb\u7bc9\u3059\u308b\u306b\u306f\u3001\u300c\u5c02\u7528\u7dda\u300d\u3084\u300c\u30d5\u30ec\u30fc\u30e0\u30ea\u30ec\u30fc\u300d\u3068\u3044\u3063\u305f\u975e\u5e38\u306b\u9ad8\u4fa1\u3067\u8907\u96d1\u306a\u6280\u8853\u3057\u304b\u9078\u629e\u80a2\u304c\u3042\u308a\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u4e00\u65b9\u3067\u3001\u793e\u5185LAN\u3067\u306f\u5b89\u4fa1\u3067\u9ad8\u901f\u306a\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u304c\u5f53\u305f\u308a\u524d\u306b\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u30ae\u30e3\u30c3\u30d7\u3092\u57cb\u3081\u308b\u3079\u304f\u3001\u300c\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306e\u4f7f\u3044\u52dd\u624b\u306e\u826f\u3055\u3067\u3001\u62e0\u70b9\u9593\u3092\u5b89\u4fa1\u306b\u63a5\u7d9a\u3057\u305f\u3044\u300d\u3068\u3044\u3046\u4f01\u696d\u306e\u30cb\u30fc\u30ba\u306b\u5fdc\u3048\u308b\u5f62\u3067\u767b\u5834\u3057\u305f\u306e\u304c\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306a\u306e\u3067\u3059\u3002<\/p>\n<div class=\"example-box\"><strong>\u3010\u8eab\u8fd1\u306a\u4f8b\u3048\uff1a\u5730\u4e0b\u306e\u5c02\u7528\u30c8\u30f3\u30cd\u30eb\u3011<\/strong>\u8ab0\u3067\u3082\u4f7f\u3048\u308b\u300c\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\uff08\u4e00\u822c\u9053\uff09\u300d\u3068\u306f\u5225\u306b\u3001\u7279\u5b9a\u306e2\u3064\u306e\u30d3\u30eb\uff08\u62e0\u70b9\uff09\u306e\u9593\u3060\u3051\u3092\u7d50\u3076\u300c\u5730\u4e0b\u9244\u306e\u5c02\u7528\u8def\u7dda\u300d\u3092\u30a4\u30e1\u30fc\u30b8\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u304c\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3067\u3059\u3002<br \/>\n\u3053\u306e\u5c02\u7528\u8def\u7dda\uff08\u901a\u4fe1\u4e8b\u696d\u8005\u304c\u7ba1\u7406\u3059\u308b\u9589\u57df\u7db2\uff09\u3092\u901a\u308b\u3053\u3068\u3067\u3001\u4e00\u822c\u9053\u306e\u6e0b\u6ede\u3084\u4e8b\u6545\uff08\u30cd\u30c3\u30c8\u306e\u9045\u5ef6\u3084\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30ea\u30b9\u30af\uff09\u306e\u5f71\u97ff\u3092\u53d7\u3051\u305a\u306b\u3001\u5b89\u5168\u304b\u3064\u9ad8\u901f\u306b\u76ee\u7684\u5730\uff08\u76f8\u624b\u62e0\u70b9\uff09\u306b\u305f\u3069\u308a\u7740\u3051\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u99c5\uff08\u5404\u62e0\u70b9\u306e\u30eb\u30fc\u30bf\u30fc\uff09\u306e\u4ed5\u69d8\u304c\u666e\u6bb5\u4f7f\u3063\u3066\u3044\u308b\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3068\u540c\u3058\u306a\u306e\u3067\u3001\u7279\u5225\u306a\u6539\u672d\u6a5f\uff08\u9ad8\u4fa1\u306a\u5c02\u7528\u6a5f\u5668\uff09\u3092\u7528\u610f\u3059\u308b\u5fc5\u8981\u304c\u306a\u304f\u3001\u624b\u8efd\u306b\u4e57\u308a\u5165\u308c\u3067\u304d\u308b\u306e\u3067\u3059\u3002<\/p>\n<\/div>\n<div class=\"diagram\">\n<pre>[<b>\u56f3\u89e32\uff1a\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3068\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8VPN\u306e\u30a4\u30e1\u30fc\u30b8<\/b>]\n\n\u3010\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3011\n+----------+                               +----------+\n| \u6771\u4eac\u672c\u793e |--- (\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u7db2) ---| \u5927\u962a\u652f\u793e |\n|  (LAN)   |     (\u901a\u4fe1\u4e8b\u696d\u8005\u306e\u9589\u57df\u7db2)     |  (LAN)   |\n+----------+                               +----------+\n\n\u3010\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8VPN\u3011\n+----------+                               +----------+\n| \u6771\u4eac\u672c\u793e |--- (\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8) ---| \u5927\u962a\u652f\u793e |\n|  (LAN)   |      (\u516c\u8846\u7db2)        |  (LAN)   |\n+----------+                               +----------+\n<\/pre>\n<p><b>\u8aac\u660e\uff1a<\/b>\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306f\u901a\u4fe1\u4e8b\u696d\u8005\u306e\u7ba1\u7406\u3059\u308b\u9589\u3058\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08\u9589\u57df\u7db2\uff09\u3092\u4f7f\u3046\u305f\u3081\u5b89\u5168\u30fb\u9ad8\u54c1\u8cea\u3002\u4e00\u65b9\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8VPN\u306f\u8ab0\u3067\u3082\u4f7f\u3048\u308b\u516c\u8846\u7db2\uff08\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\uff09\u4e0a\u306b\u4eee\u60f3\u7684\u306a\u30c8\u30f3\u30cd\u30eb\u3092\u4f5c\u3063\u3066\u901a\u4fe1\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n<h3>\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306e\u4e3b\u306a\u7528\u9014<\/h3>\n<p>\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306f\u3001\u305d\u306e\u5b89\u5168\u6027\u3068\u54c1\u8cea\u306e\u9ad8\u3055\u304b\u3089\u3001\u4e3b\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u6cd5\u4eba\u5411\u3051\u306e\u7528\u9014\u3067\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u672c\u793e\u3068\u8907\u6570\u62e0\u70b9\u306e\u63a5\u7d9a<\/strong>\uff1a\u5168\u56fd\u306e\u652f\u793e\u3084\u5e97\u8217\u3092\u3001\u30bb\u30ad\u30e5\u30a2\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u7d50\u3073\u3001\u8ca9\u58f2\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u3084\u52e4\u6020\u30b7\u30b9\u30c6\u30e0\u3092\u5171\u6709\u3059\u308b\u3002<\/li>\n<li><strong>\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u3068\u306e\u63a5\u7d9a<\/strong>\uff1a\u4f01\u696d\u304c\u5229\u7528\u3059\u308b\u30c7\u30fc\u30bf\u30bb\u30f3\u30bf\u30fc\u3068\u81ea\u793e\u30aa\u30d5\u30a3\u30b9\u3092\u3001\u9ad8\u901f\u304b\u3064\u5b89\u5b9a\u3057\u305f\u56de\u7dda\u3067\u76f4\u7d50\u3059\u308b\u3002<\/li>\n<\/ul>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u96e2\u308c\u305f\u5834\u6240\u306b\u3042\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u540c\u58eb\u3092\u3001\u3042\u305f\u304b\u3082\u96a3\u306b\u3042\u308b\u304b\u306e\u3088\u3046\u306b\uff08\uff1d\u540c\u3058\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8LAN\u306b\u3076\u3089\u4e0b\u304c\u3063\u3066\u3044\u308b\u304b\u306e\u3088\u3046\u306b\uff09\u6271\u3048\u308b\u3088\u3046\u306b\u3059\u308b\u306e\u304c\u3001\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u306e\u771f\u9ac4\u3067\u3059\u3002<\/p>\n<hr \/>\n<h2>VLAN\u3068\u306f\uff1f\u7269\u7406\u63a5\u7d9a\u306b\u7e1b\u3089\u308c\u305aLAN\u3092\u5206\u5272\u3059\u308b\u4ed5\u7d44\u307f\u3068\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u5229\u70b9<\/h2>\n<p>\u3053\u308c\u307e\u3067\u306f\u7269\u7406\u7684\u306a\u914d\u7dda\u3084\u30a8\u30ea\u30a2\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u533a\u5207\u308b\u8a71\u3092\u3057\u3066\u304d\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u5b9f\u969b\u306e\u30aa\u30d5\u30a3\u30b9\u3067\u306f\u300c\u540c\u3058\u30d5\u30ed\u30a2\u306b\u8907\u6570\u306e\u90e8\u7f72\u304c\u6df7\u5728\u3057\u3066\u3044\u308b\u300d\u300c\u4eba\u4e8b\u7570\u52d5\u3067\u30e1\u30f3\u30d0\u30fc\u306e\u6240\u5c5e\u90e8\u7f72\u304c\u5909\u308f\u308b\u300d\u3068\u3044\u3063\u305f\u72b6\u6cc1\u304c\u983b\u7e41\u306b\u8d77\u3053\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3073\u306bLAN\u30b1\u30fc\u30d6\u30eb\u3092\u629c\u304d\u5dee\u3057\u3057\u3066\u914d\u7dda\u3092\u5909\u66f4\u3059\u308b\u306e\u306f\u3001\u975e\u5e38\u306b\u624b\u9593\u304c\u304b\u304b\u308a\u73fe\u5b9f\u7684\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u3053\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u306e\u304c<strong>VLAN\uff08Virtual LAN\uff09<\/strong>\u3001\u3064\u307e\u308a\u300c\u4eee\u60f3LAN\u300d\u3068\u3044\u3046\u6280\u8853\u3067\u3059\u3002VLAN\u3092\u4f7f\u3048\u3070\u3001<strong>1\u53f0\u306e\u7269\u7406\u7684\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b9\u30a4\u30c3\u30c1\u3092\u3001\u3042\u305f\u304b\u3082\u8907\u6570\u306e\u72ec\u7acb\u3057\u305f\u30b9\u30a4\u30c3\u30c1\u3067\u3042\u308b\u304b\u306e\u3088\u3046\u306b\u3001\u8ad6\u7406\u7684\u306b\u5206\u5272<\/strong>\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u306a\u305cVLAN\u304c\u5fc5\u8981\u306a\u306e\u304b\uff1f \u2015 \u7269\u7406\u7684\u306a\u5236\u7d04\u304b\u3089\u306e\u89e3\u653e<\/h3>\n<p>VLAN\u304c\u306a\u3044\u4e16\u754c\u3067\u306f\u3001\u90e8\u7f72\u3054\u3068\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u5206\u3051\u308b\u306b\u306f\u3001\u90e8\u7f72\u306e\u6570\u3060\u3051\u7269\u7406\u7684\u306a\u30b9\u30a4\u30c3\u30c1\u3092\u7528\u610f\u3057\u3001\u305d\u308c\u305e\u308c\u306bPC\u3092\u63a5\u7d9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3057\u305f\u3002\u3053\u308c\u3067\u306f\u30b3\u30b9\u30c8\u304c\u304b\u3055\u307f\u3001\u69cb\u6210\u306e\u5909\u66f4\u306b\u3082\u67d4\u8edf\u306b\u5bfe\u5fdc\u3067\u304d\u307e\u305b\u3093\u3002VLAN\u306f\u3001\u3053\u3046\u3057\u305f\u7269\u7406\u7684\u306a\u5236\u7d04\u3092\u53d6\u308a\u6255\u3044\u3001\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u306e\u8a2d\u5b9a\u3060\u3051\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30b0\u30eb\u30fc\u30d7\u5206\u3051\u3092\u81ea\u7531\u306b\u884c\u3046\u305f\u3081\u306b\u751f\u307e\u308c\u307e\u3057\u305f\u3002<\/p>\n<div class=\"example-box\"><strong>\u3010\u8eab\u8fd1\u306a\u4f8b\u3048\uff1a\u30aa\u30d5\u30a3\u30b9\u306e\u30d1\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u3011<\/strong>\u5927\u304d\u306a\u30ef\u30f3\u30d5\u30ed\u30a2\u306e\u30aa\u30d5\u30a3\u30b9\uff081\u53f0\u306e\u7269\u7406\u30b9\u30a4\u30c3\u30c1\uff09\u3092\u60f3\u50cf\u3057\u3066\u304f\u3060\u3055\u3044\u3002VLAN\u306f\u3001\u3053\u306e\u30d5\u30ed\u30a2\u306b\u7269\u7406\u7684\u306a\u58c1\u3092\u7acb\u3066\u308b\u3053\u3068\u306a\u304f\u3001<strong>\u9ad8\u3055150cm\u306e\u300c\u30d1\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\uff08\u9593\u4ed5\u5207\u308a\uff09\u300d\u3092\u7acb\u3066\u3066\u7a7a\u9593\u3092\u533a\u5207\u308b<\/strong>\u3088\u3046\u306a\u3082\u306e\u3067\u3059\u3002<\/p>\n<ul>\n<li>\u540c\u3058\u30d1\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u5185\uff08\u540c\u3058VLAN\uff09\u306b\u3044\u308b\u4eba\u540c\u58eb\u306f\u3001\u9854\u3092\u5408\u308f\u305b\u3066\u81ea\u7531\u306b\u4f1a\u8a71\uff08\u901a\u4fe1\uff09\u3067\u304d\u307e\u3059\u3002<\/li>\n<li>\u3057\u304b\u3057\u3001\u96a3\u306e\u30d1\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\uff08\u9055\u3046VLAN\uff09\u306b\u3044\u308b\u4eba\u3068\u306f\u3001\u76f4\u63a5\u4f1a\u8a71\uff08\u901a\u4fe1\uff09\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/li>\n<li>\u4eba\u4e8b\u7570\u52d5\u304c\u3042\u3063\u3066\u3082\u3001\u58c1\u3092\u58ca\u3059\u3053\u3068\u306a\u304f\u3001\u30d1\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u306e\u914d\u7f6e\u3092\u5909\u3048\u308b\u3060\u3051\u3067\u7c21\u5358\u306b\u30ec\u30a4\u30a2\u30a6\u30c8\u5909\u66f4\uff08\u8a2d\u5b9a\u5909\u66f4\uff09\u304c\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u7269\u7406\u7684\u306a\u69cb\u9020\u306f\u4e00\u3064\u306e\u307e\u307e\u3001\u4eee\u60f3\u7684\u306a\u4ed5\u5207\u308a\u306b\u3088\u3063\u3066\u67d4\u8edf\u306b\u30b0\u30eb\u30fc\u30d7\u5206\u3051\u3067\u304d\u308b\u306e\u304cVLAN\u306e\u5f37\u529b\u306a\u30e1\u30ea\u30c3\u30c8\u3067\u3059\u3002<\/p>\n<\/div>\n<div class=\"diagram\">\n<pre>[<b>\u56f3\u89e33\uff1aVLAN\u306b\u3088\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5206\u5272\u306e\u30a4\u30e1\u30fc\u30b8<\/b>]\n\n\u3010VLAN\u304c\u306a\u3044\u5834\u5408\u3011\nPC(\u55b6\u696d) --- \u30b9\u30a4\u30c3\u30c1A --- \u30b5\u30fc\u30d0\u30fc(\u55b6\u696d)\nPC(\u958b\u767a) --- \u30b9\u30a4\u30c3\u30c1B --- \u30b5\u30fc\u30d0\u30fc(\u958b\u767a)\n\n\u3010VLAN\u304c\u3042\u308b\u5834\u5408\u3011\n              +----------------------------+\nPC(\u55b6\u696d) -----|                            |----- \u30b5\u30fc\u30d0\u30fc(\u55b6\u696d)\n              |       1\u53f0\u306e\u7269\u7406\u30b9\u30a4\u30c3\u30c1      |\nPC(\u958b\u767a) -----|                            |----- \u30b5\u30fc\u30d0\u30fc(\u958b\u767a)\n              | |--VLAN 10(\u55b6\u696d\u90e8)--|      |\n              | |--VLAN 20(\u958b\u767a\u90e8)--|      |\n              +----------------------------+\n<\/pre>\n<p><b>\u8aac\u660e\uff1a<\/b>VLAN\u3092\u4f7f\u3048\u3070\u30011\u53f0\u306e\u30b9\u30a4\u30c3\u30c1\u5185\u3067\u300c\u55b6\u696d\u90e8\u30b0\u30eb\u30fc\u30d7\u300d\u3068\u300c\u958b\u767a\u90e8\u30b0\u30eb\u30fc\u30d7\u300d\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u7269\u7406\u7684\u306b\u306f\u540c\u3058\u30b9\u30a4\u30c3\u30c1\u306b\u7e4b\u304c\u3063\u3066\u3044\u3066\u3082\u3001VLAN\u304c\u9055\u3046\u3068\u304a\u4e92\u3044\u306b\u901a\u4fe1\u3067\u304d\u306a\u304f\u306a\u308a\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n<h3>VLAN\u5c0e\u5165\u306e\u30e1\u30ea\u30c3\u30c8\u3068\u4ed5\u7d44\u307f<\/h3>\n<p>VLAN\u3092\u5c0e\u5165\u3059\u308b\u6700\u5927\u306e\u30e1\u30ea\u30c3\u30c8\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u5411\u4e0a\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7ba1\u7406\u306e\u52b9\u7387\u5316\u3067\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u30e1\u30ea\u30c3\u30c8<\/th>\n<th>\u5177\u4f53\u7684\u306a\u52b9\u679c<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5411\u4e0a<\/strong><\/td>\n<td>\u90e8\u7f72\u3054\u3068\u306bVLAN\u3092\u5206\u3051\u308c\u3070\u3001\u4e07\u304c\u4e00\u30a6\u30a4\u30eb\u30b9\u306b\u611f\u67d3\u3057\u3066\u3082\u3001\u88ab\u5bb3\u3092\u305d\u306eVLAN\u5185\u306b\u98df\u3044\u6b62\u3081\u3089\u308c\u307e\u3059\u3002\u307e\u305f\u3001\u4ed6\u90e8\u7f72\u306e\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u3082\u9632\u3052\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u67d4\u8edf\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u69cb\u6210<\/strong><\/td>\n<td>PC\u306e\u7269\u7406\u7684\u306a\u63a5\u7d9a\u5834\u6240\u3092\u5909\u3048\u305a\u306b\u3001\u8a2d\u5b9a\u5909\u66f4\u3060\u3051\u3067\u6240\u5c5e\u3059\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08VLAN\uff09\u3092\u5909\u66f4\u3067\u304d\u307e\u3059\u3002\u4eba\u4e8b\u7570\u52d5\u3084\u7d44\u7e54\u5909\u66f4\u306b\u8fc5\u901f\u306b\u5bfe\u5fdc\u53ef\u80fd\u3067\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u30b3\u30b9\u30c8\u524a\u6e1b<\/strong><\/td>\n<td>\u90e8\u7f72\u3054\u3068\u306b\u7269\u7406\u7684\u306a\u30b9\u30a4\u30c3\u30c1\u3092\u8cfc\u5165\u3059\u308b\u5fc5\u8981\u304c\u306a\u304f\u306a\u308a\u3001\u6a5f\u5668\u30b3\u30b9\u30c8\u3084\u8a2d\u7f6e\u30b9\u30da\u30fc\u30b9\u3092\u524a\u6e1b\u3067\u304d\u307e\u3059\u3002<\/td>\n<\/tr>\n<tr>\n<td><strong>\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u5411\u4e0a<\/strong><\/td>\n<td>\u672c\u6765LAN\u5168\u4f53\u306b\u5c4a\u3044\u3066\u3057\u307e\u3046\u4e0d\u8981\u306a\u901a\u4fe1\uff08\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\uff09\u304c\u3001VLAN\u5185\u306b\u9650\u5b9a\u3055\u308c\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\u6e1b\u308a\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u5411\u4e0a\u3057\u307e\u3059\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u3053\u306eVLAN\u3092\u5b9f\u73fe\u3059\u308b\u4ee3\u8868\u7684\u306a\u65b9\u6cd5\u304c<strong>\u300c\u30dd\u30fc\u30c8\u30d9\u30fc\u30b9VLAN\u300d<\/strong>\u3067\u3059\u3002\u3053\u308c\u306f\u300c\u30b9\u30a4\u30c3\u30c1\u306e1\uff5e8\u756a\u30dd\u30fc\u30c8\u306fVLAN 10\uff08\u55b6\u696d\u90e8\uff09\u300d\u300c9\uff5e16\u756a\u30dd\u30fc\u30c8\u306fVLAN 20\uff08\u958b\u767a\u90e8\uff09\u300d\u3068\u3044\u3046\u3088\u3046\u306b\u3001\u30b9\u30a4\u30c3\u30c1\u306e\u7269\u7406\u30dd\u30fc\u30c8\u3054\u3068\u306b\u6240\u5c5eVLAN\u3092\u56fa\u5b9a\u3059\u308b\u3001\u6700\u3082\u30b7\u30f3\u30d7\u30eb\u3067\u5206\u304b\u308a\u3084\u3059\u3044\u8a2d\u5b9a\u65b9\u6cd5\u3067\u3059\u3002<\/p>\n<hr \/>\n<h2>\u3010\u7dcf\u307e\u3068\u3081\u3011OSI\u53c2\u7167\u30e2\u30c7\u30eb\u3067\u898b\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6280\u8853\u306e\u3059\u307f\u308f\u3051\u4e00\u89a7\u8868<\/h2>\n<p>\u6700\u5f8c\u306b\u3001\u3053\u308c\u307e\u3067\u767b\u5834\u3057\u305f\u5168\u3066\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6280\u8853\u304c\u3001\u30d1\u30ba\u30eb\u306e\u30d4\u30fc\u30b9\u306e\u3088\u3046\u306b\u3069\u306e\u3088\u3046\u306b\u7d44\u307f\u5408\u308f\u3055\u3063\u3066\u3044\u308b\u306e\u304b\u3001\u305d\u306e\u5168\u4f53\u50cf\u3092\u660e\u3089\u304b\u306b\u3057\u307e\u3057\u3087\u3046\u3002\u3053\u306e\u8907\u96d1\u306a\u95a2\u4fc2\u6027\u3092\u6574\u7406\u3059\u308b\u305f\u3081\u306e\u6700\u5f37\u306e\u30c4\u30fc\u30eb\u304c<strong>OSI\u53c2\u7167\u30e2\u30c7\u30eb<\/strong>\u3067\u3059\u3002<\/p>\n<p>OSI\u53c2\u7167\u30e2\u30c7\u30eb\u306f\u3001\u901a\u4fe1\u306e\u6a5f\u80fd\u30927\u3064\u306e\u968e\u5c64\uff08\u30ec\u30a4\u30e4\uff09\u306b\u5206\u3051\u3066\u5b9a\u7fa9\u3057\u305f\u3082\u306e\u3067\u3059\u3002\u624b\u7d19\u3092\u51fa\u3059\u3068\u304d\u306b\u300c\u2460\u4fbf\u7b8b\u306b\u5185\u5bb9\u3092\u66f8\u304f \u2192 \u2461\u5c01\u7b52\u306b\u5165\u308c\u308b \u2192 \u2462\u4f4f\u6240\u3092\u66f8\u304f \u2192 \u2463\u30dd\u30b9\u30c8\u306b\u6295\u51fd\u3059\u308b\u300d\u3068\u3044\u3063\u305f\u624b\u9806\u304c\u3042\u308b\u3088\u3046\u306b\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u901a\u4fe1\u3082\u5f79\u5272\u306e\u7570\u306a\u308b\u5c64\u304c\u9023\u643a\u3057\u3066\u6210\u308a\u7acb\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u30e2\u30c7\u30eb\u306b\u5404\u6280\u8853\u3092\u5f53\u3066\u306f\u3081\u308b\u3053\u3068\u3067\u3001\u300c\u3069\u306e\u6280\u8853\u304c\u3001\u3069\u3093\u306a\u5f79\u5272\u3092\u62c5\u3063\u3066\u3044\u308b\u306e\u304b\u300d\u304c\u4e00\u76ee\u77ad\u7136\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6280\u8853\u3068OSI\u53c2\u7167\u30e2\u30c7\u30eb\u306e\u5bfe\u5fdc\u8868<\/h3>\n<p>\u3053\u308c\u307e\u3067\u89e3\u8aac\u3057\u3066\u304d\u305f\u6280\u8853\u306f\u3001\u4e3b\u306b<strong>\u7b2c1\u5c64\uff08\u7269\u7406\u5c64\uff09<\/strong>\u3068<strong>\u7b2c2\u5c64\uff08\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64\uff09<\/strong>\u306b\u4f4d\u7f6e\u4ed8\u3051\u3089\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u901a\u4fe1\u306e\u6700\u3082\u571f\u53f0\u3068\u306a\u308b\u90e8\u5206\u3067\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u968e\u5c64<\/th>\n<th>\u540d\u79f0<\/th>\n<th>\u5f79\u5272\u306e\u4f8b\u3048<\/th>\n<th>\u4e3b\u306a\u5f79\u5272\u3068\u95a2\u9023\u6280\u8853<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>\u7b2c3\u5c64<\/strong><\/td>\n<td>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5c64<\/td>\n<td>\u90f5\u4fbf\u756a\u53f7\u3068\u4f4f\u6240<\/td>\n<td>\u6700\u7d42\u7684\u306a\u5b9b\u5148\u3078\u306e\u30eb\u30fc\u30c8\u6c7a\u5b9a<br \/>\n\uff08IP\u30a2\u30c9\u30ec\u30b9\u3001\u30eb\u30fc\u30bf\u30fc\u306a\u3069\uff09<\/td>\n<\/tr>\n<tr>\n<td><strong>\u7b2c2\u5c64<\/strong><\/td>\n<td><strong>\u30c7\u30fc\u30bf\u30ea\u30f3\u30af\u5c64<\/strong><\/td>\n<td>\u5b9b\u540d\u30b7\u30fc\u30eb\uff08\u3007\u3007\u69d8\uff09<\/td>\n<td><strong>\u96a3\u63a5\u3059\u308b\u6a5f\u5668<\/strong>\u3078\u306e\u30c7\u30fc\u30bf\u8ee2\u9001<br \/>\n\u3010\u8a72\u5f53\u6280\u8853\u3011<strong>\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3001\u7121\u7ddaLAN(Wi-Fi)\u3001\u5e83\u57df\u30a4\u30fc\u30b5\u30cd\u30c3\u30c8\u3001VLAN<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>\u7b2c1\u5c64<\/strong><\/td>\n<td><strong>\u7269\u7406\u5c64<\/strong><\/td>\n<td>\u5c01\u7b52\u30fb\u30a4\u30f3\u30af\u30fb\u96fb\u6ce2<\/td>\n<td>\u30c7\u30fc\u30bf\u3092<strong>\u7269\u7406\u7684\u306a\u4fe1\u53f7<\/strong>\u306b\u5909\u63db<br 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