{"id":6009,"date":"2025-09-27T00:34:14","date_gmt":"2025-09-26T15:34:14","guid":{"rendered":"https:\/\/sky-peace.net\/?p=6009"},"modified":"2025-09-27T00:34:14","modified_gmt":"2025-09-26T15:34:14","slug":"ip-address-1","status":"publish","type":"post","link":"https:\/\/sky-peace.net\/certified\/ip-address-1\/","title":{"rendered":"IP\u30a2\u30c9\u30ec\u30b9\u8a08\u7b97\u304c\u82e6\u624b\u306a\u4eba\u3078\u3002\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306e\u300c0\u3068255\u306e\u7f60\u300d\u3068\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u306e\u6c42\u3081\u65b9\u3092\u4e16\u754c\u4e00\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac"},"content":{"rendered":"<p>\u57fa\u672c\u60c5\u5831\u6280\u8853\u8005\u8a66\u9a13\u3084\u5fdc\u7528\u60c5\u5831\u6280\u8853\u8005\u8a66\u9a13\u306e\u5b66\u7fd2\u3067\u3001\u591a\u304f\u306e\u53d7\u9a13\u8005\u304c\u3064\u307e\u305a\u304d\u3084\u3059\u3044\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5206\u91ce\u3002\u7279\u306b\u3001\u300c\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u300d\u3084\u300cIP\u30a2\u30c9\u30ec\u30b9\u306e\u8a08\u7b97\u300d\u3068\u805e\u3044\u305f\u3060\u3051\u3067\u3001\u82e6\u624b\u610f\u8b58\u3092\u611f\u3058\u3066\u3057\u307e\u3046\u65b9\u3082\u591a\u3044\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p>\u300c\/26 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\u30a2\u30c9\u30ec\u30b9\u3068\u3044\u3046\u5e83\u5927\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4f4f\u6240\u9332\u306b\u304a\u3044\u3066\u3001<strong>\u300c\u3069\u3053\u307e\u3067\u304c\u30b0\u30eb\u30fc\u30d7\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u90e8\uff09\u3067\u3001\u3069\u3053\u304b\u3089\u304c\u500b\u4eba\uff08\u30db\u30b9\u30c8\u90e8\uff09\u304b\u300d<\/strong>\u3092\u793a\u3059\u305f\u3081\u306e\u91cd\u8981\u306a<strong>\u5883\u754c\u7dda<\/strong>\u306e\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u300c\u6771\u4eac\u90fd\u5343\u4ee3\u7530\u533a\u6c38\u7530\u753a 1-7-1\u300d\u3068\u3044\u3046\u4f4f\u6240\u304c\u3042\u3063\u305f\u3068\u304d\u3001\u300c\u6771\u4eac\u90fd\u5343\u4ee3\u7530\u533a\u6c38\u7530\u753a\u300d\u307e\u3067\u304c\u5927\u304d\u306a\u533a\u753b\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u90e8\uff09\u3067\u3001\u300c1-7-1\u300d\u304c\u305d\u306e\u4e2d\u306e\u500b\u5225\u306e\u5efa\u7269\uff08\u30db\u30b9\u30c8\u90e8\uff09\u3092\u6307\u3059\u3001\u3068\u3044\u3063\u305f\u30a4\u30e1\u30fc\u30b8\u3067\u3059\u3002<\/p>\n<p>IP \u30a2\u30c9\u30ec\u30b9\u306e\u4e16\u754c\u3067\u306f\u3001\u3053\u306e\u5883\u754c\u7dda\u3092 <code>255.255.255.0<\/code> \u306e\u3088\u3046\u306a 10 \u9032\u6570\u304b\u3001<code>\/24<\/code> \u306e\u3088\u3046\u306a<strong>\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u8868\u8a18<\/strong>\u3067\u8868\u3057\u307e\u3059\u3002\u7279\u306b\u3001\u57fa\u672c\u60c5\u5831\u3084\u5fdc\u7528\u60c5\u5831\u306e\u8a66\u9a13\u3067\u306f\u5f8c\u8005\u306e\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u8868\u8a18\u304c\u983b\u51fa\u3057\u307e\u3059\u3002<\/p>\n<p>\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306f\u3059\u3079\u3066\u306e\u60c5\u5831\u3092 2 \u9032\u6570\u3067\u6271\u3063\u3066\u3044\u308b\u305f\u3081\u3001\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3082 2 \u9032\u6570\u3067\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u8a08\u7b97\u554f\u984c\u653b\u7565\u306e\u9375\u3067\u3059\u3002\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3092 2 \u9032\u6570\u306b\u5909\u63db\u3057\u305f\u3068\u304d\u3001<strong>\u300c1\u300d\u304c\u9023\u7d9a\u3059\u308b\u90e8\u5206\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u90e8<\/strong>\u3001<strong>\u300c0\u300d\u304c\u9023\u7d9a\u3059\u308b\u90e8\u5206\u304c\u30db\u30b9\u30c8\u90e8<\/strong>\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/p>\n<h4>\u5177\u4f53\u4f8b\uff1a\/26 (255.255.255.192) \u306e\u5834\u5408<\/h4>\n<p><code>\/26<\/code> \u3068\u3044\u3046\u8868\u8a18\u306f\u3001\u300c\u5148\u982d\u304b\u3089 26 \u30d3\u30c3\u30c8\u76ee\u307e\u3067\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u90e8\u3067\u3059\u3088\u300d\u3068\u3044\u3046\u610f\u5473\u3067\u3059\u3002\u3053\u308c\u3092 32 \u30d3\u30c3\u30c8\u306e 2 \u9032\u6570\u3067\u8868\u3059\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre><code>11111111.11111111.11111111.11000000\n\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\uffe3\n\u3053\u3053\u307e\u3067\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u90e8 (26\u30d3\u30c3\u30c8)  \uff5c \u6b8b\u308a\u304c\u30db\u30b9\u30c8\u90e8 (6\u30d3\u30c3\u30c8)\n<\/code><\/pre>\n<p>\u3053\u308c\u3092 10 \u9032\u6570\u306b\u76f4\u3059\u3068 <code>255.255.255.192<\/code> \u3068\u306a\u308a\u307e\u3059\u3002<br \/>\u7279\u306b\u91cd\u8981\u306a\u306e\u304c\u3001\u5883\u754c\u7dda\u3068\u306a\u308b\u7b2c 4 \u30aa\u30af\u30c6\u30c3\u30c8\uff084 \u756a\u76ee\u306e\u6570\u5b57\uff09\u3067\u3059\u3002<\/p>\n<table border=\"1\" style=\"width:50%; border-collapse: collapse;\">\n<tr>\n<th style=\"padding: 8px; text-align: left;\">10\u9032\u6570<\/th>\n<th style=\"padding: 8px; text-align: left;\">2\u9032\u6570<\/th>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">192<\/td>\n<td style=\"padding: 8px;\"><code>11000000<\/code><\/td>\n<\/tr>\n<\/table>\n<p>\u3053\u306e <code>11000000<\/code> \u306e\u3046\u3061\u3001\u5de6\u5074\u306e 2 \u30d3\u30c3\u30c8 (<code>11<\/code>) \u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u90e8\u306e\u4e00\u90e8\u3001\u53f3\u5074\u306e 6 \u30d3\u30c3\u30c8 (<code>000000<\/code>) \u304c\u30db\u30b9\u30c8\u90e8\u3068\u306a\u308a\u307e\u3059\u3002\u3053\u306e<strong>\u30db\u30b9\u30c8\u90e8\u306e\u30d3\u30c3\u30c8\u6570\uff08\u3053\u306e\u4f8b\u3067\u306f 6 \u30d3\u30c3\u30c8\uff09<\/strong>\u304c\u3001\u5f8c\u307b\u3069\u89e3\u8aac\u3059\u308b\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u3084\u6709\u52b9\u30db\u30b9\u30c8\u6570\u3092\u8a08\u7b97\u3059\u308b\u4e0a\u3067\u975e\u5e38\u306b\u91cd\u8981\u306b\u306a\u308b\u306e\u3067\u3001\u305c\u3072\u899a\u3048\u3066\u304a\u3044\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u306a\u305c\u3001\u3053\u306e\u3088\u3046\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u5206\u5272\u3059\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f \u3082\u3057\u4e00\u3064\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304c\u5927\u304d\u3059\u304e\u308b\u3068\u3001\u95a2\u4fc2\u306e\u306a\u3044\u901a\u4fe1\uff08\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\uff09\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u5168\u7aef\u672b\u306b\u5c4a\u3044\u3066\u3057\u307e\u3044\u3001\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u304c\u4f4e\u4e0b\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3092\u4f7f\u3063\u3066\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u9069\u5207\u306b\u5206\u5272\u3059\u308b\u3053\u3068\u3067\u3001\u901a\u4fe1\u3092\u52b9\u7387\u5316\u3057\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u9ad8\u3081\u308b\u3068\u3044\u3046\u5b9f\u52d9\u7684\u306a\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308b\u306e\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306f IP \u30a2\u30c9\u30ec\u30b9\u306e\u69cb\u9020\u3092\u5b9a\u7fa9\u3059\u308b\u8a2d\u8a08\u56f3\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3059\u3002\u305d\u3057\u3066\u3053\u306e\u5883\u754c\u7dda\u306e\u8003\u3048\u65b9\u304c\u3001\u6b21\u306b\u89e3\u8aac\u3059\u308b\u300c\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u300d\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306e\u57fa\u790e\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>IP\u30a2\u30c9\u30ec\u30b9\u306e\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u3068\u306f\uff1f2\u3064\u306e\u7c21\u5358\u306a\u8a08\u7b97\u65b9\u6cd5\u3092\u89e3\u8aac<\/h2>\n<p>\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306b\u3088\u3063\u3066\u533a\u5207\u3089\u308c\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e<strong>\u300c\u5927\u304d\u3055\u300d\u3084\u300c\u304b\u305f\u307e\u308a\u300d<\/strong>\u306e\u3053\u3068\u3092<strong>\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba<\/strong>\u3068\u547c\u3073\u307e\u3059\u3002<\/p>\n<p>\u5927\u304d\u306a\u5b66\u5e74\u3092\u3044\u304f\u3064\u304b\u306e\u30af\u30e9\u30b9\u306b\u5206\u3051\u308b\u3068\u304d\u3001\u300c1 \u30af\u30e9\u30b9 40 \u4eba\u300d\u306e\u3088\u3046\u306b\u5b9a\u54e1\u3092\u6c7a\u3081\u307e\u3059\u3088\u306d\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u304a\u3051\u308b\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u3082\u3053\u308c\u3068\u4f3c\u3066\u3044\u3066\u30011 \u3064\u306e\u30b5\u30d6\u30cd\u30c3\u30c8\uff08\u30af\u30e9\u30b9\uff09\u306b\u3044\u304f\u3064\u306e IP \u30a2\u30c9\u30ec\u30b9\uff08\u751f\u5f92\uff09\u304c\u542b\u307e\u308c\u308b\u304b\u3092\u793a\u3059\u30b5\u30a4\u30ba\u306e\u3053\u3068\u3067\u3059\u3002\u3053\u306e\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u304c\u5206\u304b\u308c\u3070\u3001IP \u30a2\u30c9\u30ec\u30b9\u306e\u8a08\u7b97\u554f\u984c\u306f\u4e00\u6c17\u306b\u89e3\u304d\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u6c42\u3081\u65b9\u306b\u306f 2 \u3064\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u304c\u3042\u308a\u3001\u3069\u3061\u3089\u3082\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u304a\u304f\u3068\u4fbf\u5229\u3067\u3059\u3002<\/p>\n<h3>\u8a08\u7b97\u5f0f\u3067\u6c42\u3081\u308b\u65b9\u6cd5\uff08\u6697\u7b97\u306b\u304a\u3059\u3059\u3081\uff09<\/h3>\n<p>\u6700\u3082\u624b\u8efd\u3067\u8a66\u9a13\u672c\u756a\u3067\u3082\u5f79\u7acb\u3064\u306e\u304c\u3001\u3053\u306e\u8a08\u7b97\u5f0f\u3067\u3059\u3002<\/p>\n<p><strong>\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba = 256 &#8211; \u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306e\u5024<\/strong><\/p>\n<p>\u203b\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306e\u5024\u306f\u3001<code>255.255.255.192<\/code> \u306e\u3088\u3046\u306b\u5909\u5316\u3057\u3066\u3044\u308b\u90e8\u5206\u306e\u6570\u5b57\uff08\u3053\u306e\u5834\u5408\u306f <code>192<\/code>\uff09\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<p>\u524d\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u4f8b\u306b\u51fa\u3057\u305f <code>\/26<\/code> (255.255.255.192) \u3067\u8a08\u7b97\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<br \/>\u5909\u5316\u3057\u3066\u3044\u308b\u306e\u306f\u7b2c 4 \u30aa\u30af\u30c6\u30c3\u30c8\u306e <code>192<\/code> \u306a\u306e\u3067\u3001<\/p>\n<p><code>256 - 192 = 64<\/code><\/p>\n<p>\u3068\u306a\u308a\u3001\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u306f <strong>64<\/strong> \u3067\u3042\u308b\u3053\u3068\u304c\u4e00\u77ac\u3067\u5206\u304b\u308a\u307e\u3059\u3002<br \/>\u300c\u306a\u305c 256 \u304b\u3089\u5f15\u304f\u306e\uff1f\u300d\u3068\u3044\u3046\u7406\u7531\u306f\u3001\u6b21\u306b\u89e3\u8aac\u3059\u308b 2 \u9032\u6570\u3067\u306e\u8003\u3048\u65b9\u3092\u7406\u89e3\u3059\u308b\u3068\u8151\u306b\u843d\u3061\u307e\u3059\u3002<\/p>\n<h3>2\u9032\u6570\u3067\u7406\u89e3\u3059\u308b\u65b9\u6cd5\uff08\u6839\u672c\u7406\u89e3\u306b\u304a\u3059\u3059\u3081\uff09<\/h3>\n<p>\u3082\u3046\u4e00\u3064\u306e\u65b9\u6cd5\u306f\u3001\u30db\u30b9\u30c8\u90e8\u306e\u30d3\u30c3\u30c8\u6570\u3092\u4f7f\u3063\u305f\u8a08\u7b97\u3067\u3059\u3002<\/p>\n<p><strong>\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba = 2<sup>n<\/sup><\/strong><br \/>\uff08n = \u30db\u30b9\u30c8\u90e8\u306e\u30d3\u30c3\u30c8\u6570\uff09<\/p>\n<p><code>\/26<\/code> \u306e\u5834\u5408\u300132 \u30d3\u30c3\u30c8\u306e\u3046\u3061 26 \u30d3\u30c3\u30c8\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u90e8\u3067\u3057\u305f\u3002\u3064\u307e\u308a\u3001\u6b8b\u308a\u306e\u30db\u30b9\u30c8\u90e8\u306e\u30d3\u30c3\u30c8\u6570\u306f <code>32 - 26 = 6<\/code> \u30d3\u30c3\u30c8\u3067\u3059\u3002<br \/>\u3053\u306e <code>n=6<\/code> \u3092\u5f0f\u306b\u5f53\u3066\u306f\u3081\u308b\u3068\u3001<\/p>\n<p><code>2<sup>6<\/sup> = 64<\/code><\/p>\n<p>\u3068\u306a\u308a\u3001\u540c\u3058\u304f\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u306f <strong>64<\/strong> \u3068\u6c42\u3081\u3089\u308c\u307e\u3059\u3002\u300c<code>256 - 192<\/code>\u300d\u3068\u300c<code>2<sup>6<\/sup><\/code>\u300d\u3001\u8a08\u7b97\u65b9\u6cd5\u306f\u9055\u3048\u3069\u3001\u672c\u8cea\u7684\u306b\u306f\u540c\u3058\u3053\u3068\u3092\u5225\u306e\u89d2\u5ea6\u304b\u3089\u8a08\u7b97\u3057\u3066\u3044\u308b\u3060\u3051\u306a\u306e\u3067\u3059\u3002<\/p>\n<h3>\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u300c64\u300d\u304c\u793a\u3059\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u533a\u5207\u308a\u65b9<\/h3>\n<p>\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u304c 64 \u3068\u3044\u3046\u3053\u3068\u306f\u3001IP \u30a2\u30c9\u30ec\u30b9\u306e\u7a7a\u9593\uff080\u301c255\uff09\u3092 64 \u500b\u305a\u3064\u306e\u30b0\u30eb\u30fc\u30d7\u306b\u5206\u5272\u3059\u308b\u3001\u3068\u3044\u3046\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/p>\n<p>\u5177\u4f53\u7684\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b 4 \u3064\u306e\u30d6\u30ed\u30c3\u30af\u306b\u5206\u304b\u308c\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>1 \u3064\u76ee\u306e\u30d6\u30ed\u30c3\u30af<\/strong>: 0 \u301c 63<\/li>\n<li><strong>2 \u3064\u76ee\u306e\u30d6\u30ed\u30c3\u30af<\/strong>: 64 \u301c 127<\/li>\n<li><strong>3 \u3064\u76ee\u306e\u30d6\u30ed\u30c3\u30af<\/strong>: 128 \u301c 191<\/li>\n<li><strong>4 \u3064\u76ee\u306e\u30d6\u30ed\u30c3\u30af<\/strong>: 192 \u301c 255<\/li>\n<\/ul>\n<p>\u3042\u308b\u7279\u5b9a\u306e IP \u30a2\u30c9\u30ec\u30b9\u304c\u3001\u3053\u308c\u3089\u306e\u3069\u306e\u30d6\u30ed\u30c3\u30af\u306b\u5c5e\u3057\u3066\u3044\u308b\u304b\u3092\u898b\u6975\u3081\u308b\u3053\u3068\u304c\u3001\u6b21\u306e\u30b9\u30c6\u30c3\u30d7\u3067\u3042\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u3084\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u3092\u7279\u5b9a\u3059\u308b\u305f\u3081\u306e\u91cd\u8981\u306a\u9375\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u3068\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u306e\u6c42\u3081\u65b9\u2502\u300c0\u3068255\u300d\u306e\u8aa4\u89e3\u3092\u89e3\u6d88<\/h2>\n<p>\u524d\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u3001\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306b\u3088\u3063\u3066 IP \u30a2\u30c9\u30ec\u30b9\u304c\u8907\u6570\u306e\u300c\u30d6\u30ed\u30c3\u30af\u300d\u306b\u5206\u5272\u3055\u308c\u308b\u3053\u3068\u3092\u898b\u3066\u304d\u307e\u3057\u305f\u3002\u5b9f\u306f\u3001\u305d\u308c\u305e\u308c\u306e\u30d6\u30ed\u30c3\u30af\u306b\u306f\u7279\u5225\u306a\u5f79\u5272\u3092\u6301\u3064\u3001\u4e88\u7d04\u6e08\u307f\u306e IP \u30a2\u30c9\u30ec\u30b9\u304c 2 \u3064\u5b58\u5728\u3057\u307e\u3059\u3002\u305d\u308c\u304c<strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9<\/strong>\u3068<strong>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9<\/strong>\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9<\/strong>: \u5404\u30d6\u30ed\u30c3\u30af\u306e<strong>\u5148\u982d<\/strong>\u306e\u30a2\u30c9\u30ec\u30b9\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u305d\u306e\u3082\u306e\uff08\u30b0\u30eb\u30fc\u30d7\u5168\u4f53\uff09\u3092\u6307\u3059\u4f4f\u6240\u306e\u3088\u3046\u306a\u3082\u306e\u3002<\/li>\n<li><strong>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9<\/strong>: \u5404\u30d6\u30ed\u30c3\u30af\u306e<strong>\u672b\u5c3e<\/strong>\u306e\u30a2\u30c9\u30ec\u30b9\u3002\u305d\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u5168\u7aef\u672b\u306b\u4e00\u6589\u9001\u4fe1\uff08\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\uff09\u3059\u308b\u305f\u3081\u306e\u7279\u5225\u306a\u5b9b\u5148\u3002<\/li>\n<\/ul>\n<p>\u3053\u306e 2 \u3064\u306e\u30a2\u30c9\u30ec\u30b9\u306f\u3001PC \u3084\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u306e\u3088\u3046\u306a\u500b\u5225\u306e\u6a5f\u5668\uff08\u30db\u30b9\u30c8\uff09\u306b\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<p>\u4f8b\u3048\u308b\u306a\u3089\u3001\u3042\u308b\u30d6\u30ed\u30c3\u30af\u304c\u300c\u30d1\u30fc\u30af\u30cf\u30a4\u30c4 101 \u53f7\u68df\u300d\u3068\u3044\u3046\u30de\u30f3\u30b7\u30e7\u30f3\u3060\u3068\u3057\u307e\u3057\u3087\u3046\u3002<br \/><strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9<\/strong>\u306f\u300c\u30d1\u30fc\u30af\u30cf\u30a4\u30c4 101 \u53f7\u68df\u300d\u3068\u3044\u3046<strong>\u5efa\u7269\u305d\u306e\u3082\u306e\u3092\u6307\u3059\u4f4f\u6240<\/strong>\u3067\u3059\u3002<br \/><strong>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9<\/strong>\u306f\u300c101 \u53f7\u68df\u306e\u5c45\u4f4f\u8005\u5168\u54e1\u69d8\u3078\u300d\u3068\u3044\u3046<strong>\u9928\u5185\u4e00\u6589\u653e\u9001<\/strong>\u306e\u30a2\u30ca\u30a6\u30f3\u30b9\u3067\u3059\u3002<br \/>\u305d\u3057\u3066\u3001\u79c1\u305f\u3061\u304c\u666e\u6bb5\u4f7f\u3046 IP \u30a2\u30c9\u30ec\u30b9\u306f\u300c101 \u53f7\u5ba4\u300d\u300c102 \u53f7\u5ba4\u300d\u3068\u3044\u3063\u305f\u500b\u5225\u306e\u90e8\u5c4b\u756a\u53f7\u306b\u3042\u305f\u308a\u307e\u3059\u3002\u5efa\u7269\u306e\u4f4f\u6240\u3084\u9928\u5185\u653e\u9001\u3092\u3001\u500b\u4eba\u306e\u90e8\u5c4b\u3068\u3057\u3066\u4f7f\u3048\u306a\u3044\u306e\u3068\u540c\u3058\u30a4\u30e1\u30fc\u30b8\u3067\u3059\u3002<\/p>\n<h3>\u5177\u4f53\u4f8b\uff1a192.168.1.100\/26 \u306e\u5834\u5408<\/h3>\n<p>\u3067\u306f\u3001<code>192.168.1.100\/26<\/code> \u3068\u3044\u3046 IP \u30a2\u30c9\u30ec\u30b9\u304c\u5c5e\u3059\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u3068\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u3092\u6c42\u3081\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<ol>\n<li><strong>\u6240\u5c5e\u30d6\u30ed\u30c3\u30af\u3092\u7279\u5b9a\u3059\u308b<\/strong><br \/>\n    <code>\/26<\/code> \u306e\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u306f 64 \u3067\u3057\u305f\u3002\u30d6\u30ed\u30c3\u30af\u306e\u533a\u5207\u308a\u306f <code>0-63<\/code>, <code>64-127<\/code>, <code>128-191<\/code>, <code>192-255<\/code> \u3067\u3059\u3002<br \/>\n    IP \u30a2\u30c9\u30ec\u30b9\u306e\u7b2c 4 \u30aa\u30af\u30c6\u30c3\u30c8 <code>100<\/code> \u306f\u3001<strong>\u300c64\u301c127\u300d<\/strong>\u306e\u30d6\u30ed\u30c3\u30af\u306b\u542b\u307e\u308c\u307e\u3059\u3002<\/li>\n<li><strong>\u30d6\u30ed\u30c3\u30af\u306e\u5148\u982d\u3068\u672b\u5c3e\u3092\u898b\u3064\u3051\u308b<\/strong><br \/>\n    \u6240\u5c5e\u3059\u308b\u30d6\u30ed\u30c3\u30af\u304c\u5206\u304b\u308c\u3070\u3001\u3042\u3068\u306f\u7c21\u5358\u3067\u3059\u3002<\/p>\n<ul>\n<li>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\uff08\u5148\u982d\uff09: <code>192.168.1.64<\/code><\/li>\n<li>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\uff08\u672b\u5c3e\uff09: <code>192.168.1.127<\/code><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u3053\u306e 2 \u3064\u306e\u30a2\u30c9\u30ec\u30b9\u304c\u3001<code>192.168.1.100<\/code> \u304c\u6240\u5c5e\u3059\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4ee3\u8868\u30a2\u30c9\u30ec\u30b9\u3068\u4e00\u6589\u9001\u4fe1\u7528\u30a2\u30c9\u30ec\u30b9\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u91cd\u8981\uff1a\u4e88\u7d04\u30a2\u30c9\u30ec\u30b9\u306f\u300c0\u3068255\u300d\u3060\u3051\u3067\u306f\u306a\u3044<\/h3>\n<p>IP \u30a2\u30c9\u30ec\u30b9\u306e\u5b66\u7fd2\u3092\u59cb\u3081\u305f\u3070\u304b\u308a\u306e\u65b9\u304c\u6700\u3082\u9665\u308a\u3084\u3059\u3044\u306e\u304c\u3001\u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u306f 0\u3001\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u306f 255\u300d\u3068\u56fa\u5b9a\u3067\u899a\u3048\u3066\u3057\u307e\u3046\u3053\u3068\u3067\u3059\u3002\u3053\u308c\u306f\u3001<code>\/24<\/code>\uff08\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u304c 256 \u3067\u30010\u301c255 \u306e 1 \u30d6\u30ed\u30c3\u30af\u3057\u304b\u306a\u3044\u72b6\u614b\uff09\u3068\u3044\u3046\u7279\u6b8a\u306a\u30b1\u30fc\u30b9\u3060\u3051\u3092\u898b\u3066\u3044\u308b\u305f\u3081\u306b\u8d77\u3053\u308b\u8aa4\u89e3\u3067\u3059\u3002<\/p>\n<p><code>\/26<\/code> \u306e\u3088\u3046\u306b\u30b5\u30d6\u30cd\u30c3\u30c8\u304c\u5206\u5272\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001<strong>\u5206\u5272\u3055\u308c\u305f\u30d6\u30ed\u30c3\u30af\u3054\u3068<\/strong>\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u3068\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u306e\u30da\u30a2\u304c\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u25bc \/26 \u306b\u304a\u3051\u308b\u4e88\u7d04\u30a2\u30c9\u30ec\u30b9\u4e00\u89a7<\/strong><\/p>\n<table border=\"1\" style=\"width:100%; border-collapse: collapse;\">\n<tr style=\"background-color:#f2f2f2;\">\n<th style=\"padding: 8px; text-align: left;\">\u30d6\u30ed\u30c3\u30af\u306e\u7bc4\u56f2<\/th>\n<th style=\"padding: 8px; text-align: left;\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\uff08\u5148\u982d\uff09<\/th>\n<th style=\"padding: 8px; text-align: left;\">\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\uff08\u672b\u5c3e\uff09<\/th>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">192.168.1.0 \u301c 63<\/td>\n<td style=\"padding: 8px;\"><code>192.168.1.0<\/code><\/td>\n<td style=\"padding: 8px;\"><code>192.168.1.63<\/code><\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">192.168.1.64 \u301c 127<\/td>\n<td style=\"padding: 8px;\"><code>192.168.1.64<\/code><\/td>\n<td style=\"padding: 8px;\"><code>192.168.1.127<\/code><\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">192.168.1.128 \u301c 191<\/td>\n<td style=\"padding: 8px;\"><code>192.168.1.128<\/code><\/td>\n<td style=\"padding: 8px;\"><code>192.168.1.191<\/code><\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">192.168.1.192 \u301c 255<\/td>\n<td style=\"padding: 8px;\"><code>192.168.1.192<\/code><\/td>\n<td style=\"padding: 8px;\"><code>192.168.1.255<\/code><\/td>\n<\/tr>\n<\/table>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u30b5\u30d6\u30cd\u30c3\u30c8\u5206\u5272\u3092\u884c\u3046\u3068\u3001\u5206\u5272\u3055\u308c\u305f\u30d6\u30ed\u30c3\u30af\u306e\u6570\u3060\u3051\u4e88\u7d04\u30a2\u30c9\u30ec\u30b9\u306e\u30da\u30a2\u304c\u751f\u307e\u308c\u308b\u306e\u3067\u3059\u3002\u3053\u306e\u70b9\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u3001IP \u30a2\u30c9\u30ec\u30b9\u8a08\u7b97\u306e\u6700\u5927\u306e\u58c1\u3092\u4e57\u308a\u8d8a\u3048\u308b\u305f\u3081\u306e\u9375\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u3067\u3001\u6307\u5b9a\u3057\u305f IP \u30a2\u30c9\u30ec\u30b9\u304c\u5c5e\u3059\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5168\u4f53\u50cf\u304c\u898b\u3048\u3066\u304d\u307e\u3057\u305f\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3053\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4e2d\u3067\u5b9f\u969b\u306b PC \u3084\u30b5\u30fc\u30d0\u30fc\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u308b\u300c\u6709\u52b9\u306a\u30db\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u300d\u306e\u6570\u3092\u6570\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2>\u6709\u52b9\u30db\u30b9\u30c8\u6570\u306e\u6c42\u3081\u65b9\u2502\u8a08\u7b97\u5f0f\u306e\u300c-2\u300d\u304c\u610f\u5473\u3059\u308b2\u3064\u306e\u4e88\u7d04\u30a2\u30c9\u30ec\u30b9<\/h2>\n<p>\u3053\u308c\u307e\u3067\u306e\u89e3\u8aac\u3067\u3001\u30d6\u30ed\u30c3\u30af\u5168\u4f53\u306eIP\u30a2\u30c9\u30ec\u30b9\u6570\uff08\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\uff09\u3068\u3001\u305d\u306e\u4e2d\u3067\u4e88\u7d04\u3055\u308c\u3066\u3044\u308b2\u3064\u306e\u7279\u5225\u306a\u30a2\u30c9\u30ec\u30b9\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\/\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\uff09\u304c\u5206\u304b\u308a\u307e\u3057\u305f\u3002\u3067\u306f\u3001\u305d\u306e\u30d6\u30ed\u30c3\u30af\u306e\u4e2d\u3067\u3001\u5b9f\u969b\u306bPC\u3084\u30b5\u30fc\u30d0\u30fc\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u308bIP\u30a2\u30c9\u30ec\u30b9\u306f\u3044\u304f\u3064\u3042\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u3053\u308c\u304c<strong>\u6709\u52b9\u30db\u30b9\u30c8\u6570<\/strong>\u3067\u3059\u3002<\/p>\n<h3>\u6709\u52b9\u30db\u30b9\u30c8\u6570\u306e\u8a08\u7b97\u5f0f<\/h3>\n<p>\u6709\u52b9\u30db\u30b9\u30c8\u6570\u306f\u3001\u4ee5\u4e0b\u306e\u8a08\u7b97\u5f0f\u3067\u6c42\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n<p><strong>\u6709\u52b9\u30db\u30b9\u30c8\u6570 = 2<sup>n<\/sup> &#8211; 2<\/strong><br \/>\uff08n = \u30db\u30b9\u30c8\u90e8\u306e\u30d3\u30c3\u30c8\u6570\uff09<\/p>\n<p>\u3053\u306e\u5f0f\u306e <code>2<sup>n<\/sup><\/code> \u306e\u90e8\u5206\u306f\u3001\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\uff08\u305d\u306e\u30d6\u30ed\u30c3\u30af\u306b\u542b\u307e\u308c\u308b\u7dcfIP\u30a2\u30c9\u30ec\u30b9\u6570\uff09\u3068\u540c\u3058\u3067\u3059\u3002<br \/>\u305d\u3057\u3066\u3001\u6700\u3082\u91cd\u8981\u306a\u306e\u304c<strong>\u300c-2\u300d<\/strong>\u306e\u90e8\u5206\u3002\u3053\u308c\u306f\u3001\u305d\u306e\u30d6\u30ed\u30c3\u30af\u306e\u4e2d\u3067PC\u306a\u3069\u306b\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u3001\u4e88\u7d04\u6e08\u307f\u306e<strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\uff08\u5148\u982d\uff09<\/strong>\u3068<strong>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\uff08\u672b\u5c3e\uff09<\/strong>\u306e2\u3064\u5206\u3092\u5f15\u304f\u3001\u3068\u3044\u3046\u610f\u5473\u3067\u3059\u3002<\/p>\n<p>\u5148\u307b\u3069\u306e\u30de\u30f3\u30b7\u30e7\u30f3\u306e\u4f8b\u3067\u8a00\u3048\u3070\u3001\u300c\u516864\u6238\u306e\u30de\u30f3\u30b7\u30e7\u30f3\uff08\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\uff09\u306e\u3046\u3061\u3001\u7ba1\u7406\u4eba\u5ba4\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\uff09\u3068\u96c6\u4f1a\u6240\uff08\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\uff09\u3092\u9664\u3044\u305f\u3001<strong>\u5b9f\u969b\u306b\u4f4f\u3081\u308b62\u6238<\/strong>\u300d\u3092\u6570\u3048\u308b\u306e\u304c\u6709\u52b9\u30db\u30b9\u30c8\u6570\u306e\u8a08\u7b97\u3067\u3059\u3002<\/p>\n<h3>\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u3054\u3068\u306e\u5177\u4f53\u4f8b<\/h3>\n<p>\u8a66\u9a13\u3067\u3088\u304f\u554f\u308f\u308c\u308b\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u3092\u4f8b\u306b\u3001\u5b9f\u969b\u306b\u8a08\u7b97\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<ul>\n<li><strong>\/26 \u306e\u5834\u5408<\/strong>\n<ul>\n<li>\u30db\u30b9\u30c8\u90e8\u30d3\u30c3\u30c8\u6570: <code>32 - 26 = 6<\/code> \u30d3\u30c3\u30c8<\/li>\n<li>\u8a08\u7b97\u5f0f: <code>2<sup>6<\/sup> - 2 = 64 - 2 = <strong>62<\/strong><\/code><strong> \u500b<\/strong><\/li>\n<\/ul>\n<\/li>\n<li><strong>\/24 \u306e\u5834\u5408<\/strong>\n<ul>\n<li>\u30db\u30b9\u30c8\u90e8\u30d3\u30c3\u30c8\u6570: <code>32 - 24 = 8<\/code> \u30d3\u30c3\u30c8<\/li>\n<li>\u8a08\u7b97\u5f0f: <code>2<sup>8<\/sup> - 2 = 256 - 2 = <strong>254<\/strong><\/code><strong> \u500b<\/strong><\/li>\n<\/ul>\n<\/li>\n<li><strong>\/28 \u306e\u5834\u5408<\/strong>\n<ul>\n<li>\u30db\u30b9\u30c8\u90e8\u30d3\u30c3\u30c8\u6570: <code>32 - 28 = 4<\/code> \u30d3\u30c3\u30c8<\/li>\n<li>\u8a08\u7b97\u5f0f: <code>2<sup>4<\/sup> - 2 = 16 - 2 = <strong>14<\/strong><\/code><strong> \u500b<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u5b9f\u969b\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u8a08\u3067\u306f\u3001\u300c\u3053\u306e\u90e8\u7f72\u306b\u306f\u6700\u4f4e30\u53f0\u306ePC\u304c\u5fc5\u8981\u3060\u304b\u3089\u3001\u6709\u52b9\u30db\u30b9\u30c8\u6570\u304c62\u500b\u3042\u308b\/26\u306e\u30b5\u30d6\u30cd\u30c3\u30c8\u3092\u5272\u308a\u5f53\u3066\u3088\u3046\u300d\u3068\u3044\u3063\u305f\u3088\u3046\u306b\u3001\u5fc5\u8981\u306a\u30db\u30b9\u30c8\u6570\u304b\u3089\u9069\u5207\u306a\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3092\u9006\u7b97\u3059\u308b\u5834\u9762\u3067\u3053\u306e\u8a08\u7b97\u304c\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<table border=\"1\" style=\"width:100%; border-collapse: collapse;\">\n<tr style=\"background-color:#f2f2f2;\">\n<th style=\"padding: 8px; text-align: center;\">\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9<\/th>\n<th style=\"padding: 8px; text-align: center;\">\u30db\u30b9\u30c8\u90e8\u30d3\u30c3\u30c8\u6570 (n)<\/th>\n<th style=\"padding: 8px; text-align: center;\">\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba (2<sup>n<\/sup>)<\/th>\n<th style=\"padding: 8px; text-align: center;\">\u6709\u52b9\u30db\u30b9\u30c8\u6570 (2<sup>n<\/sup> &#8211; 2)<\/th>\n<\/tr>\n<tr>\n<td style=\"padding: 8px; text-align: center;\">\/24<\/td>\n<td style=\"padding: 8px; text-align: center;\">8<\/td>\n<td style=\"padding: 8px; text-align: center;\">256<\/td>\n<td style=\"padding: 8px; text-align: center;\">254<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px; text-align: center;\">\/26<\/td>\n<td style=\"padding: 8px; text-align: center;\">6<\/td>\n<td style=\"padding: 8px; text-align: center;\">64<\/td>\n<td style=\"padding: 8px; text-align: center;\">62<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px; text-align: center;\">\/28<\/td>\n<td style=\"padding: 8px; text-align: center;\">4<\/td>\n<td style=\"padding: 8px; text-align: center;\">16<\/td>\n<td style=\"padding: 8px; text-align: center;\">14<\/td>\n<\/tr>\n<\/table>\n<p>\u3053\u308c\u3067\u3001\u3042\u308b\u30b5\u30d6\u30cd\u30c3\u30c8\u306b\u3044\u304f\u3064\u306e\u6a5f\u5668\u3092\u63a5\u7d9a\u3067\u304d\u308b\u304b\u304c\u8a08\u7b97\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u6700\u5f8c\u306e\u8a08\u7b97\u30b9\u30c6\u30c3\u30d7\u3068\u3057\u3066\u3001\u5177\u4f53\u7684\u306b\u300c\u3069\u306e\u30a2\u30c9\u30ec\u30b9\u304b\u3089\u3069\u306e\u30a2\u30c9\u30ec\u30b9\u307e\u3067\u300d\u304c\u4f7f\u3048\u308b\u306e\u304b\u3001\u305d\u306e\u7bc4\u56f2\u306e\u6c42\u3081\u65b9\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2>\u6709\u52b9\u30db\u30b9\u30c8\u7bc4\u56f2\u306e\u6c42\u3081\u65b9\u2502\u5229\u7528\u53ef\u80fd\u306aIP\u30a2\u30c9\u30ec\u30b9\u3092\u7279\u5b9a\u3059\u308b\u6700\u7d42\u8a08\u7b97<\/h2>\n<p>\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3001\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u3001\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u3001\u6709\u52b9\u30db\u30b9\u30c8\u6570\u3002\u3053\u308c\u307e\u3067\u306e\u77e5\u8b58\u3092\u3059\u3079\u3066\u4f7f\u3063\u3066\u3001IP\u30a2\u30c9\u30ec\u30b9\u8a08\u7b97\u306e\u30b4\u30fc\u30eb\u3067\u3042\u308b<strong>\u300c\u6709\u52b9\u30db\u30b9\u30c8\u7bc4\u56f2\u300d<\/strong>\u3092\u6c42\u3081\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u6709\u52b9\u30db\u30b9\u30c8\u7bc4\u56f2\u3068\u306f\u3001\u305d\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u3067<strong>\u5b9f\u969b\u306bPC\u3084\u30b5\u30fc\u30d0\u30fc\u306b\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u304c\u3067\u304d\u308bIP\u30a2\u30c9\u30ec\u30b9\u306e\u7bc4\u56f2<\/strong>\u306e\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u6c42\u3081\u65b9\u306f\u975e\u5e38\u306b\u30b7\u30f3\u30d7\u30eb\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>\u7bc4\u56f2\u306e\u958b\u59cb\u30a2\u30c9\u30ec\u30b9<\/strong>: \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9 + 1<\/li>\n<li><strong>\u7bc4\u56f2\u306e\u7d42\u4e86\u30a2\u30c9\u30ec\u30b9<\/strong>: \u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9 &#8211; 1<\/li>\n<\/ul>\n<p>\u3064\u307e\u308a\u3001\u3042\u308b\u30d6\u30ed\u30c3\u30af\u306b\u542b\u307e\u308c\u308bIP\u30a2\u30c9\u30ec\u30b9\u5168\u4f53\u306e\u4e2d\u304b\u3089\u3001\u4e88\u7d04\u3055\u308c\u3066\u3044\u308b\u5148\u982d\uff08\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\uff09\u3068\u672b\u5c3e\uff08\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\uff09\u306e2\u3064\u3092\u9664\u3044\u305f\u6b8b\u308a\u304c\u3001\u3059\u3079\u3066\u5229\u7528\u53ef\u80fd\u306aIP\u30a2\u30c9\u30ec\u30b9\u306b\u306a\u308b\u3001\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n<h3>\u5177\u4f53\u4f8b\uff1a192.168.1.100\/26 \u306e\u5834\u5408<\/h3>\n<p>\u3053\u308c\u307e\u3067\u4f55\u5ea6\u3082\u767b\u5834\u3057\u305f <code>192.168.1.100\/26<\/code> \u3092\u4f8b\u306b\u3001\u8a08\u7b97\u306e\u7dcf\u4ed5\u4e0a\u3052\u3092\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<ol>\n<li><strong>\u6240\u5c5e\u30d6\u30ed\u30c3\u30af\u3092\u7279\u5b9a\u3059\u308b<\/strong>\n<ul>\n<li><code>\/26<\/code> \u306e\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u306f <code>64<\/code>\u3002<\/li>\n<li>\u7b2c4\u30aa\u30af\u30c6\u30c3\u30c8\u306e <code>100<\/code> \u306f\u300c<strong>64\u301c127<\/strong>\u300d\u306e\u30d6\u30ed\u30c3\u30af\u306b\u5c5e\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u4e88\u7d04\u30a2\u30c9\u30ec\u30b9\u3092\u7279\u5b9a\u3059\u308b<\/strong>\n<ul>\n<li>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\uff08\u30d6\u30ed\u30c3\u30af\u306e\u5148\u982d\uff09: <code>192.168.1.64<\/code><\/li>\n<li>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\uff08\u30d6\u30ed\u30c3\u30af\u306e\u672b\u5c3e\uff09: <code>192.168.1.127<\/code><\/li>\n<\/ul>\n<\/li>\n<li><strong>\u6709\u52b9\u30db\u30b9\u30c8\u7bc4\u56f2\u3092\u8a08\u7b97\u3059\u308b<\/strong>\n<ul>\n<li>\u958b\u59cb\u30a2\u30c9\u30ec\u30b9: <code>192.168.1.64<\/code> + 1 = <strong><code>192.168.1.65<\/code><\/strong><\/li>\n<li>\u7d42\u4e86\u30a2\u30c9\u30ec\u30b9: <code>192.168.1.127<\/code> &#8211; 1 = <strong><code>192.168.1.126<\/code><\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u7d50\u8ad6\u3068\u3057\u3066\u3001<code>192.168.1.100<\/code> \u304c\u5c5e\u3059\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u304a\u3044\u3066\u3001PC\u306a\u3069\u306b\u5272\u308a\u5f53\u3066\u53ef\u80fd\u306aIP\u30a2\u30c9\u30ec\u30b9\u306e\u7bc4\u56f2\u306f<strong>\u300c192.168.1.65 \u301c 192.168.1.126\u300d<\/strong>\u3068\u306a\u308a\u307e\u3059\u3002\u6709\u52b9\u30db\u30b9\u30c8\u6570\u304c <code>62<\/code> \u500b\u3067\u3042\u308b\u3053\u3068\u3082\u3001<code>126 - 65 + 1 = 62<\/code> \u3068\u3044\u3046\u8a08\u7b97\u3067\u4e00\u81f4\u3057\u307e\u3059\u306d\u3002<\/p>\n<p>\u5bb6\u5ead\u3084\u30aa\u30d5\u30a3\u30b9\u306e\u30eb\u30fc\u30bf\u30fc\u306b\u642d\u8f09\u3055\u308c\u3066\u3044\u308bDHCP\u30b5\u30fc\u30d0\u30fc\u306f\u3001\u3053\u306e\u6709\u52b9\u30db\u30b9\u30c8\u7bc4\u56f2\uff08\u4f8b\uff1a.65\u301c.126\uff09\u306e\u4e2d\u304b\u3089\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3057\u3066\u304d\u305fPC\u3084\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u306b\u7a7a\u3044\u3066\u3044\u308bIP\u30a2\u30c9\u30ec\u30b9\u3092\u81ea\u52d5\u3067\u5272\u308a\u632f\u308b\u3001\u3068\u3044\u3046\u91cd\u8981\u306a\u5f79\u5272\u3092\u62c5\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u3067IP\u30a2\u30c9\u30ec\u30b9\u8a08\u7b97\u306b\u5fc5\u8981\u306a\u3059\u3079\u3066\u306e\u77e5\u8b58\u304c\u63c3\u3044\u307e\u3057\u305f\u3002\u6b21\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u5b9f\u969b\u306e\u8a66\u9a13\u554f\u984c\u3092\u60f3\u5b9a\u3057\u305f\u6f14\u7fd2\u3067\u3001\u3053\u3053\u307e\u3067\u306e\u7406\u89e3\u5ea6\u3092\u8a66\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2>\u7dcf\u4ed5\u4e0a\u3052\uff01\u57fa\u672c\u60c5\u5831\u30fb\u5fdc\u7528\u60c5\u5831\u30ec\u30d9\u30eb\u306e\u554f\u984c\u6f14\u7fd2\u306b\u6311\u6226<\/h2>\n<p>\u3053\u3053\u307e\u3067\u306e\u89e3\u8aac\u3067\u3001IP\u30a2\u30c9\u30ec\u30b9\u8a08\u7b97\u306b\u5fc5\u8981\u306a\u77e5\u8b58\u306f\u3059\u3079\u3066\u63c3\u3044\u307e\u3057\u305f\u3002\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u5b9f\u969b\u306e\u8a66\u9a13\u3067\u51fa\u984c\u3055\u308c\u308b\u30ec\u30d9\u30eb\u306e\u554f\u984c\u3092\u89e3\u304d\u306a\u304c\u3089\u3001\u8a08\u7b97\u624b\u9806\u3092\u30de\u30b9\u30bf\u30fc\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u57fa\u790e\u554f\u984c<\/h3>\n<h4>\u554f\u984c1\uff1a<code>192.168.1.100\/26<\/code> \u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u3068\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u3001\u6709\u52b9\u30db\u30b9\u30c8\u7bc4\u56f2\u3092\u6c42\u3081\u3088\u3002<\/h4>\n<p><strong>\u3010\u89e3\u6cd5\u30b9\u30c6\u30c3\u30d7\u3011<\/strong><\/p>\n<ol>\n<li><strong>\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u3092\u6c42\u3081\u308b<\/strong>: <code>\/26<\/code> \u306e\u30de\u30b9\u30af\u5024\u306f <code>255.255.255.192<\/code>\u3002<br \/><code>256 - 192 = 64<\/code>\u3002\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u306f <strong>64<\/strong>\u3002<\/li>\n<li><strong>\u6240\u5c5e\u30d6\u30ed\u30c3\u30af\u3092\u7279\u5b9a\u3059\u308b<\/strong>: \u7b2c4\u30aa\u30af\u30c6\u30c3\u30c8\u306e <code>100<\/code> \u306f\u3001<code>64<\/code> \u306e\u500d\u6570\u3067\u533a\u5207\u3089\u308c\u308b\u30d6\u30ed\u30c3\u30af <code>0-63<\/code>, <strong><code>64-127<\/code><\/strong>, <code>128-191<\/code>&#8230; \u306e\u3046\u3061\u3001\u300c64-127\u300d\u306b\u5c5e\u3059\u308b\u3002<\/li>\n<li><strong>\u30a2\u30c9\u30ec\u30b9\u3092\u78ba\u5b9a\u3059\u308b<\/strong>:\n<ul>\n<li>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9 (\u5148\u982d): <strong><code>192.168.1.64<\/code><\/strong><\/li>\n<li>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9 (\u672b\u5c3e): <strong><code>192.168.1.127<\/code><\/strong><\/li>\n<li>\u6709\u52b9\u30db\u30b9\u30c8\u7bc4\u56f2 (\u4e0a\u8a18\u306e\u9593): <strong><code>192.168.1.65<\/code> \u301c <code>192.168.1.126<\/code><\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h4>\u554f\u984c2\uff1a<code>192.168.1.200\/28<\/code> \u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u3068\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u3092\u6c42\u3081\u3088\u3002<\/h4>\n<p><strong>\u3010\u89e3\u6cd5\u30b9\u30c6\u30c3\u30d7\u3011<\/strong><\/p>\n<ol>\n<li><strong>\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u3092\u6c42\u3081\u308b<\/strong>: <code>\/28<\/code> \u306e\u30de\u30b9\u30af\u5024\u306f <code>255.255.255.240<\/code>\u3002<br \/><code>256 - 240 = 16<\/code>\u3002\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u306f <strong>16<\/strong>\u3002<\/li>\n<li><strong>\u6240\u5c5e\u30d6\u30ed\u30c3\u30af\u3092\u7279\u5b9a\u3059\u308b<\/strong>: \u7b2c4\u30aa\u30af\u30c6\u30c3\u30c8\u306e <code>200<\/code> \u304c\u3069\u306e\u30d6\u30ed\u30c3\u30af\u306b\u5165\u308b\u304b\u8003\u3048\u307e\u3059\u300216\u306e\u500d\u6570\u3092\u6570\u3048\u3066\u3044\u304f\u3068\u3001<code>16 \u00d7 12 = 192<\/code>\u3002\u6b21\u306e\u30d6\u30ed\u30c3\u30af\u306f <code>16 \u00d7 13 = 208<\/code>\u3002<br \/>\u3088\u3063\u3066\u3001<code>200<\/code> \u306f\u300c<strong>192\u301c207<\/strong>\u300d\u306e\u30d6\u30ed\u30c3\u30af\u306b\u5c5e\u3059\u308b\u3002<\/li>\n<li><strong>\u30a2\u30c9\u30ec\u30b9\u3092\u78ba\u5b9a\u3059\u308b<\/strong>:\n<ul>\n<li>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9 (\u5148\u982d): <strong><code>192.168.1.192<\/code><\/strong><\/li>\n<li>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9 (\u672b\u5c3e): <strong><code>192.168.1.207<\/code><\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h3>\u5fdc\u7528\u554f\u984c\uff08\u30aa\u30af\u30c6\u30c3\u30c8\u8de8\u304e\uff09<\/h3>\n<p>\u6b21\u306b\u3001\u30b5\u30d6\u30cd\u30c3\u30c8\u306e\u5883\u754c\u304c\u7b2c3\u30aa\u30af\u30c6\u30c3\u30c8\u306a\u3069\u3001\u7b2c4\u30aa\u30af\u30c6\u30c3\u30c8\u4ee5\u5916\u306b\u3042\u308b\u5fdc\u7528\u554f\u984c\u3067\u3059\u3002\u8003\u3048\u65b9\u306e\u57fa\u672c\u306f\u5168\u304f\u540c\u3058\u3067\u3059\u3002<\/p>\n<h4>\u554f\u984c3\uff1a<code>10.2.34.145\/20<\/code> \u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u3092\u6c42\u3081\u3088\u3002<\/h4>\n<p><strong>\u3010\u89e3\u6cd5\u30b9\u30c6\u30c3\u30d7\u3011<\/strong><\/p>\n<ol>\n<li><strong>\u5909\u5316\u3059\u308b\u30aa\u30af\u30c6\u30c3\u30c8\u3092\u7279\u5b9a\u3059\u308b<\/strong>: <code>\/20<\/code> \u306f\u3001<code>8 + 8 + 4<\/code> \u306a\u306e\u3067\u3001\u5883\u754c\u7dda\u306f<strong>\u7b2c3\u30aa\u30af\u30c6\u30c3\u30c8<\/strong>\u306b\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u3092\u6c42\u3081\u308b<\/strong>: <code>\/20<\/code> \u306f\u3001\u7b2c3\u30aa\u30af\u30c6\u30c3\u30c8\u306e\u30de\u30b9\u30af\u304c <code>11110000<\/code> (240) \u3067\u3042\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002<br \/><code>256 - 240 = 16<\/code>\u3002\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u306f <strong>16<\/strong>\u3002\u3053\u308c\u306f<strong>\u7b2c3\u30aa\u30af\u30c6\u30c3\u30c8\u304c16\u305a\u3064\u5897\u3048\u308b<\/strong>\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u6240\u5c5e\u30d6\u30ed\u30c3\u30af\u3092\u7279\u5b9a\u3059\u308b<\/strong>: IP\u30a2\u30c9\u30ec\u30b9\u306e\u7b2c3\u30aa\u30af\u30c6\u30c3\u30c8 <code>34<\/code> \u306b\u6ce8\u76ee\u3057\u307e\u3059\u300216\u306e\u500d\u6570\u3067\u533a\u5207\u308b\u3068 <code>0, 16, 32, 48...<\/code> \u3068\u306a\u308b\u305f\u3081\u3001<code>34<\/code> \u306f\u300c<strong>32<\/strong>\u300d\u304b\u3089\u59cb\u307e\u308b\u30d6\u30ed\u30c3\u30af\u306b\u5c5e\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30a2\u30c9\u30ec\u30b9\u3092\u78ba\u5b9a\u3059\u308b<\/strong>: \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u306f\u3001\u6240\u5c5e\u30d6\u30ed\u30c3\u30af\u306e\u5148\u982d\u3067\u3042\u308a\u3001\u30db\u30b9\u30c8\u90e8\u304c\u3059\u3079\u30660\u306b\u306a\u3063\u305f\u30a2\u30c9\u30ec\u30b9\u3067\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u306f <strong><code>10.2.32.0<\/code><\/strong> \u3068\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ol>\n<h4>\u554f\u984c4\uff1a<code>172.16.130.10\/19<\/code> \u306e\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u3092\u6c42\u3081\u3088\u3002<\/h4>\n<p><strong>\u3010\u89e3\u6cd5\u30b9\u30c6\u30c3\u30d7\u3011<\/strong><\/p>\n<ol>\n<li><strong>\u5909\u5316\u3059\u308b\u30aa\u30af\u30c6\u30c3\u30c8\u3092\u7279\u5b9a\u3059\u308b<\/strong>: <code>\/19<\/code> \u306f <code>8 + 8 + 3<\/code> \u306a\u306e\u3067\u3001\u5883\u754c\u7dda\u306f<strong>\u7b2c3\u30aa\u30af\u30c6\u30c3\u30c8<\/strong>\u3067\u3059\u3002<\/li>\n<li><strong>\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u3092\u6c42\u3081\u308b<\/strong>: \u7b2c3\u30aa\u30af\u30c6\u30c3\u30c8\u306e\u30de\u30b9\u30af\u306f <code>11100000<\/code> (224) \u3067\u3059\u3002<br \/><code>256 - 224 = 32<\/code>\u3002\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u306f <strong>32<\/strong>\u3002\u7b2c3\u30aa\u30af\u30c6\u30c3\u30c8\u304c32\u305a\u3064\u5897\u3048\u307e\u3059\u3002<\/li>\n<li><strong>\u6240\u5c5e\u30d6\u30ed\u30c3\u30af\u3092\u7279\u5b9a\u3059\u308b<\/strong>: \u7b2c3\u30aa\u30af\u30c6\u30c3\u30c8\u306e <code>130<\/code> \u306b\u6ce8\u76ee\u3057\u307e\u3059\u300232\u306e\u500d\u6570\u306f <code>0, 32, 64, 96, 128, 160...<\/code> \u3068\u306a\u308b\u305f\u3081\u3001<code>130<\/code> \u306f\u300c<strong>128<\/strong>\u300d\u304b\u3089\u59cb\u307e\u308b\u30d6\u30ed\u30c3\u30af\u306b\u5c5e\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30a2\u30c9\u30ec\u30b9\u3092\u78ba\u5b9a\u3059\u308b<\/strong>: <code>130<\/code> \u304c\u5c5e\u3059\u308b\u30d6\u30ed\u30c3\u30af\u306f <code>172.16.128.0<\/code> \u304b\u3089\u59cb\u307e\u308a\u307e\u3059\u3002\u6b21\u306e\u30d6\u30ed\u30c3\u30af\u306f <code>172.16.160.0<\/code> \u3067\u3059\u3002<br \/>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u306f\u3001\u6b21\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u306e1\u3064\u624b\u524d\u306e\u30a2\u30c9\u30ec\u30b9\u3067\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u306f <strong><code>172.16.159.255<\/code><\/strong> \u3068\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ol>\n<h2>\u307e\u3068\u3081\uff1a\u30b5\u30d6\u30cd\u30c3\u30c8\u8a08\u7b97\u3092\u30de\u30b9\u30bf\u30fc\u3059\u308b\u305f\u3081\u306e\u91cd\u8981\u30dd\u30a4\u30f3\u30c8<\/h2>\n<p>\u304a\u75b2\u308c\u69d8\u3067\u3057\u305f\u3002\u3053\u306e\u8a18\u4e8b\u3067\u89e3\u8aac\u3057\u3066\u304d\u305f\u3001\u4e00\u898b\u3059\u308b\u3068\u8907\u96d1\u306a\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3068IP\u30a2\u30c9\u30ec\u30b9\u306e\u8a08\u7b97\u306b\u3064\u3044\u3066\u3001\u6700\u5f8c\u306b\u91cd\u8981\u30dd\u30a4\u30f3\u30c8\u3092\u632f\u308a\u8fd4\u308a\u3001\u77e5\u8b58\u3092\u78ba\u5b9f\u306b\u5b9a\u7740\u3055\u305b\u307e\u3057\u3087\u3046\u3002<\/p>\n<ol>\n<li><strong>\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306f\u300c\u533a\u5207\u308a\u306e\u30eb\u30fc\u30eb\u300d\u3067\u3042\u308b<\/strong><br \/>\n    \u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306f\u3001IP\u30a2\u30c9\u30ec\u30b9\u3092\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u90e8\u3068\u30db\u30b9\u30c8\u90e8\u306b\u5206\u3051\u308b<strong>\u300c\u5883\u754c\u7dda\u300d<\/strong>\u3067\u3059\u3002<code>\/26<\/code> \u3084 <code>\/28<\/code> \u3068\u3044\u3063\u305f\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u3092\u898b\u305f\u3089\u3001\u307e\u305a\u300c\u30db\u30b9\u30c8\u90e8\u304c\u4f55\u30d3\u30c3\u30c8\u6b8b\u3063\u3066\u3044\u308b\u304b\uff1f\u300d\u3092\u610f\u8b58\u3059\u308b\u3053\u3068\u304c\u3001\u8a08\u7b97\u554f\u984c\u653b\u7565\u306e\u5168\u3066\u306e\u59cb\u307e\u308a\u3067\u3059\u3002<\/li>\n<li><strong>\u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\u3067\u300c\u5c5e\u3059\u308b\u7bc4\u56f2\u300d\u304c\u5206\u304b\u308b<\/strong><br \/>\n    \u30d6\u30ed\u30c3\u30af\u30b5\u30a4\u30ba\uff08<code>256 - \u30de\u30b9\u30af\u5024<\/code> \u307e\u305f\u306f <code>2^\u30db\u30b9\u30c8\u90e8\u30d3\u30c3\u30c8\u6570<\/code>\uff09\u3092\u8a08\u7b97\u3059\u308b\u3053\u3068\u3067\u3001\u3042\u308bIP\u30a2\u30c9\u30ec\u30b9\u304c\u3069\u306e<strong>\u300c\u304b\u305f\u307e\u308a\uff08\u30d6\u30ed\u30c3\u30af\uff09\u300d<\/strong>\u306b\u5c5e\u3059\u308b\u304b\u304c\u5206\u304b\u308a\u307e\u3059\u3002\u30d6\u30ed\u30c3\u30af\u306e\u7bc4\u56f2\uff08\u4f8b\uff1a64\u301c127\uff09\u3092\u7279\u5b9a\u3059\u308b\u3053\u3068\u304c\u3001\u3059\u3079\u3066\u306e\u8a08\u7b97\u306e\u571f\u53f0\u3068\u306a\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u5404\u30d6\u30ed\u30c3\u30af\u306b\u300c\u4e88\u7d04\u6e08\u307f\u30a2\u30c9\u30ec\u30b9\u300d\u304c\u5fc5\u305a2\u3064\u3042\u308b<\/strong><br \/>\n    \u3053\u308c\u304c\u6700\u3082\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002\u5206\u5272\u3055\u308c\u305f<strong>\u3059\u3079\u3066\u306e\u30d6\u30ed\u30c3\u30af<\/strong>\u306b\u306f\u3001\u5fc5\u305a\u5148\u982d\u306e<strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9<\/strong>\u3068\u672b\u5c3e\u306e<strong>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9<\/strong>\u304c\u5b58\u5728\u3057\u307e\u3059\u3002\u300c\u4e88\u7d04\u30a2\u30c9\u30ec\u30b9\u306f 0 \u3068 255 \u3060\u3051\u300d\u3068\u3044\u3046\u521d\u5b66\u8005\u306e\u8aa4\u89e3\u3092\u6368\u3066\u3001\u5e38\u306b\u30d6\u30ed\u30c3\u30af\u5358\u4f4d\u3067\u8003\u3048\u308b\u7656\u3092\u3064\u3051\u307e\u3057\u3087\u3046\u3002<\/li>\n<li><strong>\u6709\u52b9\u30db\u30b9\u30c8\u306f\u300c\u9593\u306e\u30a2\u30c9\u30ec\u30b9\u300d<\/strong><br \/>\n    PC\u3084\u30b5\u30fc\u30d0\u30fc\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u308b\u6709\u52b9\u30db\u30b9\u30c8\u306e\u7bc4\u56f2\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u3068\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u306b\u631f\u307e\u308c\u305f<strong>\u300c\u9593\u306e\u30a2\u30c9\u30ec\u30b9\u300d<\/strong>\u3067\u3059\u3002<code>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9 + 1<\/code> \u304b\u3089 <code>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9 - 1<\/code> 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&#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, 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