{"id":5252,"date":"2025-07-26T15:12:23","date_gmt":"2025-07-26T06:12:23","guid":{"rendered":"https:\/\/sky-peace.net\/?p=5252"},"modified":"2025-07-26T15:12:23","modified_gmt":"2025-07-26T06:12:23","slug":"ip-subnetmask","status":"publish","type":"post","link":"https:\/\/sky-peace.net\/certified\/ip-subnetmask\/","title":{"rendered":"\u3082\u3046\u4e38\u6697\u8a18\u3057\u306a\u3044\uff01\u300c\u306a\u305c\uff1f\u300d\u304b\u3089\u7406\u89e3\u3059\u308bIP\u30a2\u30c9\u30ec\u30b9\u3068\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3010\u5fdc\u7528\u60c5\u5831\u30fb\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3011"},"content":{"rendered":"<p>\u300cIP\u30a2\u30c9\u30ec\u30b9\u3068\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306e\u8a08\u7b97\u3001\u53c2\u8003\u66f8\u3092\u8aad\u3093\u3067\u3082\u3044\u307e\u3044\u3061\u30d4\u30f3\u3068\u3053\u306a\u3044\u2026\u300d<br 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\/>\u3053\u306e\u30b7\u30f3\u30d7\u30eb\u306a\u69cb\u9020\u3092\u6700\u521d\u306b\u30a4\u30e1\u30fc\u30b8\u3067\u304d\u308b\u304b\u3069\u3046\u304b\u304c\u3001IP\u30a2\u30c9\u30ec\u30b9\u8a08\u7b97\u3092\u30de\u30b9\u30bf\u30fc\u3059\u308b\u305f\u3081\u306e\u9375\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<hr>\n<h3>3. \u5927\u56f3\u89e3\uff1a\u30db\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u5c0e\u51fa\u306e\u5168\u4f53\u50cf\u3068\u4ed5\u7d44\u307f<\/h3>\n<p>\u3055\u3066\u3001\u5148\u307b\u3069\u306e\u300c\u90e8\u5c4b\u756a\u53f7\u300d\u304c\u3069\u3046\u3084\u3063\u3066\u6c42\u3081\u3089\u308c\u308b\u306e\u304b\u3001\u305d\u306e\u8a08\u7b97\u306e\u4ed5\u7d44\u307f\u3092\u8997\u3044\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306f10\u9032\u6570\u304c\u5206\u304b\u3089\u306a\u3044\u305f\u3081\u3001\u5168\u3066\u306e\u6570\u5b57\u3092<strong>\u300c2\u9032\u6570\uff080\u30681\u306e\u4e16\u754c\uff09\u300d<\/strong>\u306b\u5909\u63db\u3057\u3066\u8003\u3048\u307e\u3059\u3002\u3053\u3053\u304c\u6700\u521d\u306e\u30b9\u30c6\u30c3\u30d7\u3067\u3059\u3002<\/p>\n<h4>\u30b9\u30c6\u30c3\u30d71\uff1aIP\u30a2\u30c9\u30ec\u30b9\u3068\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3092\u300c2\u9032\u6570\u300d\u306b\u5909\u63db\u3059\u308b<\/h4>\n<p>\u4f8b\u3068\u3057\u3066\u4f7f\u3063\u305f\u300cIP\u30a2\u30c9\u30ec\u30b9: 192.168.1.10\u300d\u3068\u300c\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af: 255.255.255.0\u300d\u3092\u3001\u305d\u308c\u305e\u308c2\u9032\u6570\u306b\u76f4\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n<table style=\"width:100%; border-collapse: collapse; text-align: center; margin-bottom: 1.5em;\">\n<tr style=\"background-color:#f0f0f0;\">\n<th style=\"border: 1px solid #ccc; padding: 8px;\">\u7a2e\u985e<\/th>\n<th style=\"border: 1px solid #ccc; padding: 8px;\">10\u9032\u6570\u8868\u8a18<\/th>\n<th style=\"border: 1px solid #ccc; padding: 8px;\">2\u9032\u6570\u8868\u8a18<\/th>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ccc; padding: 8px;\">IP\u30a2\u30c9\u30ec\u30b9<\/td>\n<td style=\"border: 1px solid #ccc; padding: 8px; font-family: monospace;\">192.168.1.10<\/td>\n<td style=\"border: 1px solid #ccc; padding: 8px; font-family: monospace;\">11000000.10101000.00000001.00001010<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ccc; padding: 8px;\">\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af<\/td>\n<td style=\"border: 1px solid #ccc; padding: 8px; font-family: monospace;\">255.255.255.0<\/td>\n<td style=\"border: 1px solid #ccc; padding: 8px; font-family: monospace;\">11111111.11111111.11111111.00000000<\/td>\n<\/tr>\n<\/table>\n<h4>\u30b9\u30c6\u30c3\u30d72\uff1a2\u3064\u306e2\u9032\u6570\u3067\u300cAND\u6f14\u7b97\uff08\u8ad6\u7406\u7a4d\uff09\u300d\u3092\u884c\u3046<\/h4>\n<p>\u6b21\u306b\u3001\u3053\u306e2\u3064\u306e2\u9032\u6570\u3092\u91cd\u306d\u3066\u3001<strong>\u300cAND\u6f14\u7b97\uff08\u8ad6\u7406\u7a4d\uff09\u300d<\/strong>\u3068\u3044\u3046\u8a08\u7b97\u3092\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u4e21\u65b9\u306e\u30d3\u30c3\u30c8\u304c\u300c1\u300d\u306e\u5834\u5408\u306e\u307f\u7d50\u679c\u304c\u300c1\u300d\u306b\u306a\u308a\u3001\u305d\u308c\u4ee5\u5916\u306f\u300c0\u300d\u306b\u306a\u308b\u3001\u3068\u3044\u3046\u5358\u7d14\u306a\u30eb\u30fc\u30eb\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u8a08\u7b97\u3053\u305d\u304c\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\uff08\u30a2\u30d1\u30fc\u30c8\u540d\uff09\u3092\u7279\u5b9a\u3059\u308b\u9b54\u6cd5\u3067\u3059\u3002<\/p>\n<pre style=\"background-color: #f5f5f5; padding: 15px; border-radius: 5px; font-size: 14px; line-height: 1.6; text-align: center; margin-bottom: 1.5em;\">\n  11000000.10101000.00000001.00001010  (IP\u30a2\u30c9\u30ec\u30b9)\n& 11111111.11111111.11111111.00000000  (\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af)\n------------------------------------\n  11000000.10101000.00000001.00000000  (\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9)\n<\/pre>\n<p>\u6ce8\u76ee\u3059\u3079\u304d\u306f\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306e\u5f79\u5272\u3067\u3059\u3002<strong>\u300c1\u300d\u304c\u4e26\u3093\u3067\u3044\u308b\u90e8\u5206\u306fIP\u30a2\u30c9\u30ec\u30b9\u306e\u30d3\u30c3\u30c8\u3092\u305d\u306e\u307e\u307e\u901a\u3057\u3001\u300c0\u300d\u304c\u4e26\u3093\u3067\u3044\u308b\u90e8\u5206\u306f\u5f37\u5236\u7684\u306b0\u306b\u3059\u308b<\/strong>\u3001\u307e\u3055\u306b\u300c\u30de\u30b9\u30af\u300d\u306e\u3088\u3046\u306a\u50cd\u304d\u3092\u3057\u3066\u3044\u307e\u3059\u3088\u306d\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u90e8\u3060\u3051\u304c\u304f\u3063\u304d\u308a\u3068\u6d6e\u304b\u3073\u4e0a\u304c\u3063\u3066\u304f\u308b\u306e\u3067\u3059\u3002<\/p>\n<h4>\u30b9\u30c6\u30c3\u30d73\uff1a\u7d50\u679c\u309210\u9032\u6570\u306b\u623b\u3057\u3001\u300c\u30db\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u90e8\u300d\u3092\u7279\u5b9a\u3059\u308b<\/h4>\n<p>AND\u6f14\u7b97\u306e\u7d50\u679c\u51fa\u3066\u304d\u305f2\u9032\u6570 `11000000.10101000.00000001.00000000` \u309210\u9032\u6570\u306b\u623b\u3059\u3068\u3001<strong>\u300c192.168.1.0\u300d<\/strong>\u3068\u306a\u308a\u3001\u7121\u4e8b\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u304c\u6c42\u307e\u308a\u307e\u3057\u305f\u3002<\/p>\n<p>\u3067\u306f\u3001\u300c\u30db\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u90e8\u300d\u306f\u3069\u3053\u3067\u3057\u3087\u3046\uff1f<br \/>\n\u3082\u3046\u304a\u5206\u304b\u308a\u3067\u3059\u306d\u3002\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3067\u300c0\u300d\u306b\u306a\u3063\u3066\u3044\u305f\u90e8\u5206\u3001\u3064\u307e\u308a<strong>IP\u30a2\u30c9\u30ec\u30b9\u306e\u672b\u5c3e `00001010` \u304c\u3001\u305d\u306e\u307e\u307e\u30db\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u90e8<\/strong>\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u309210\u9032\u6570\u306b\u76f4\u3059\u3068<strong>\u300c10\u300d<\/strong>\u3067\u3059\u3002<\/p>\n<p>\u3053\u308c\u304c\u3001IP\u30a2\u30c9\u30ec\u30b9\u304b\u3089\u30db\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u90e8\u3092\u5c0e\u304d\u51fa\u3059\u8a08\u7b97\u306e\u5168\u8c8c\u3067\u3059\uff01<\/p>\n<h3>4. \u306a\u305c\uff1f\u304c\u308f\u304b\u308b\u6df1\u6398\u308a\u89e3\u8aac<\/h3>\n<p>\u3053\u3053\u307e\u3067\u306e\u89e3\u8aac\u3067\u3001IP\u30a2\u30c9\u30ec\u30b9\u3068\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3092\u4f7f\u3063\u3066\u30db\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u90e8\u3092\u5c0e\u304d\u51fa\u3059\u300c\u8a08\u7b97\u65b9\u6cd5\u300d\u306f\u30de\u30b9\u30bf\u30fc\u3067\u304d\u305f\u306f\u305a\u3067\u3059\u3002\u3057\u304b\u3057\u3001\u5fdc\u7528\u60c5\u5831\u6280\u8853\u8005\u8a66\u9a13\u3092\u7a81\u7834\u3057\u3001\u771f\u306e\u5b9f\u52d9\u5bb6\u3092\u76ee\u6307\u3059\u306b\u306f\u3001\u305d\u306e\u80cc\u666f\u306b\u3042\u308b\u300c\u306a\u305c\uff1f\u300d\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n<h4>\u306a\u305c\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u304c\u5fc5\u8981\u306b\u306a\u3063\u305f\u306e\u304b\uff1f \uff5eIP\u30a2\u30c9\u30ec\u30b9\u67af\u6e07\u306e\u6b74\u53f2\uff5e<\/h4>\n<p>\u6614\u3005\u3001IP\u30a2\u30c9\u30ec\u30b9\u306b\u306f\u300c\u30af\u30e9\u30b9\u300d\u3068\u3044\u3046\u6982\u5ff5\u304c\u3042\u308a\u307e\u3057\u305f\uff08\u30af\u30e9\u30b9A, B, C\u306a\u3069\uff09\u3002\u3053\u308c\u306f\u3001\u7d44\u7e54\u306e\u898f\u6a21\u306b\u5fdc\u3058\u3066\u3056\u3063\u304f\u308a\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5927\u304d\u3055\u3092\u5272\u308a\u5f53\u3066\u308b\u4ed5\u7d44\u307f\u3067\u3057\u305f\u3002\u3057\u304b\u3057\u3001\u300c\u5927\u30fb\u4e2d\u30fb\u5c0f\u300d\u306e3\u30b5\u30a4\u30ba\u3057\u304b\u306a\u304f\u3001\u975e\u5e38\u306b\u7121\u99c4\u304c\u591a\u304b\u3063\u305f\u306e\u3067\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001PC\u304c100\u53f0\u3057\u304b\u306a\u3044\u4f1a\u793e\u306b\u3001\u7d0465,000\u53f0\u5206\u306eIP\u30a2\u30c9\u30ec\u30b9\u304c\u4f7f\u3048\u308b\u300c\u30af\u30e9\u30b9B\u300d\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u5272\u308a\u5f53\u3066\u3066\u3057\u307e\u3046\u3001\u3068\u3044\u3063\u305f\u4e8b\u614b\u304c\u983b\u767a\u3057\u307e\u3057\u305f\u3002\u3053\u308c\u3067\u306f\u3001\u3042\u3063\u3068\u3044\u3046\u9593\u306bIP\u30a2\u30c9\u30ec\u30b9\u304c\u67af\u6e07\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3088\u306d\u3002<\/p>\n<p>\u305d\u3053\u3067\u767b\u5834\u3057\u305f\u306e\u304c\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u5927\u304d\u3055\u3092\u67d4\u8edf\u306b\u3001\u7121\u99c4\u306a\u304f\u8a2d\u8a08\u3059\u308b\u305f\u3081\u306e\u4ed5\u7d44\u307f\u3001<strong>\u300c\u30b5\u30d6\u30cd\u30c3\u30c8\u5316\uff08Subnetting\uff09\u300d<\/strong>\u3068\u3001\u305d\u306e\u305f\u3081\u306e\u9053\u5177\u3067\u3042\u308b<strong>\u300c\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u300d<\/strong>\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001IP\u30a2\u30c9\u30ec\u30b9\u3092\u5fc5\u8981\u306a\u5206\u3060\u3051\u3001\u52b9\u7387\u7684\u306b\u5229\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u306e\u3067\u3059\u3002<\/p>\n<h4>\u306a\u305c\u8a08\u7b97\u306b\u306f\u300cAND\u6f14\u7b97\u300d\u304c\u4f7f\u308f\u308c\u308b\u306e\u304b\uff1f \uff5e\u30de\u30b9\u30af\u306e\u672c\u5f53\u306e\u610f\u5473\uff5e<\/h4>\n<p>\u3053\u308c\u3082\u3001\u30b5\u30d6\u30cd\u30c3\u30c8\u300c\u30de\u30b9\u30af\u300d\u3068\u3044\u3046\u8a00\u8449\u306e\u610f\u5473\u3092\u8003\u3048\u308b\u3068\u76f4\u611f\u7684\u306b\u7406\u89e3\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u601d\u3044\u51fa\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u30922\u9032\u6570\u306b\u3059\u308b\u3068\u3001\u300c1\u300d\u304c\u9023\u7d9a\u3059\u308b\u90e8\u5206\u3068\u3001\u300c0\u300d\u304c\u9023\u7d9a\u3059\u308b\u90e8\u5206\u306b\u5206\u304b\u308c\u307e\u3057\u305f\u3088\u306d\u3002<\/p>\n<ul>\n<li><strong>\u300c1\u300d\u306e\u90e8\u5206\uff1a<\/strong>IP\u30a2\u30c9\u30ec\u30b9\u306e\u30d3\u30c3\u30c8\u3092\u300c\u305d\u306e\u307e\u307e\u901a\u3059\u300d\u5f79\u5272\u3002\u3053\u3053\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u90e8\u3067\u3059\u3002<\/li>\n<li><strong>\u300c0\u300d\u306e\u90e8\u5206\uff1a<\/strong>IP\u30a2\u30c9\u30ec\u30b9\u306e\u30d3\u30c3\u30c8\u3092\u300c\u5f37\u5236\u7684\u306b0\u3067\u5857\u308a\u3064\u3076\u3059\u300d\u5f79\u5272\u3002\u3053\u3053\u304c\u30db\u30b9\u30c8\u90e8\u3067\u3059\u3002<\/li>\n<\/ul>\n<p>\u3053\u306e\u300c\u901a\u3059\u300d\u300c\u5857\u308a\u3064\u3076\u3059\u300d\u3068\u3044\u3046\u64cd\u4f5c\u3092\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u306e\u4e16\u754c\u3067\u5b9f\u73fe\u3059\u308b\u306e\u306b\u6700\u3082\u90fd\u5408\u304c\u826f\u304b\u3063\u305f\u306e\u304c<strong>\u300cAND\u6f14\u7b97\uff08\u8ad6\u7406\u7a4d\uff09\u300d<\/strong>\u3060\u3063\u305f\u3001\u3068\u3044\u3046\u308f\u3051\u3067\u3059\u30022\u3064\u306e\u30d3\u30c3\u30c8\u3092\u6bd4\u8f03\u3057\u3066\u300c\u4e21\u65b91\u306a\u30891\u3001\u305d\u308c\u4ee5\u5916\u306f0\u300d\u3068\u3044\u3046AND\u6f14\u7b97\u306e\u30eb\u30fc\u30eb\u306f\u3001\u307e\u3055\u306b\u3053\u306e\u30de\u30b9\u30af\u6a5f\u80fd\u3092\u5b9f\u73fe\u3059\u308b\u305f\u3081\u306e\u5b8c\u74a7\u306a\u30ed\u30b8\u30c3\u30af\u306a\u306e\u3067\u3059\u3002<\/p>\n<h4>CIDR\uff08\u30b5\u30a4\u30c0\u30fc\uff09\u8868\u8a18\u3063\u3066\u3001\u3044\u3063\u305f\u3044\u4f55\uff1f \uff5e\u4fbf\u5229\u306a\u8fd1\u9053\uff5e<\/h4>\n<p><code>255.255.255.0<\/code> \u306e\u3088\u3046\u306b\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3092\u6bce\u56de\u66f8\u304f\u306e\u306f\u3001\u5c11\u3057\u9762\u5012\u3067\u3059\u3088\u306d\u3002\u305d\u3053\u3067\u751f\u307e\u308c\u305f\u306e\u304c\u3001\u3088\u308a\u30b7\u30f3\u30d7\u30eb\u306b\u8868\u73fe\u3059\u308b\u305f\u3081\u306e<strong>\u300cCIDR\uff08Classless Inter-Domain Routing\uff09\u8868\u8a18\u300d<\/strong>\u3067\u3059\u3002\u8aad\u307f\u65b9\u306f\u300c\u30b5\u30a4\u30c0\u30fc\u300d\u3067OK\u3067\u3059\uff01<\/p>\n<p>\u3053\u308c\u306f\u975e\u5e38\u306b\u7c21\u5358\u3067\u3001<strong>\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u30922\u9032\u6570\u306b\u3057\u305f\u3068\u304d\u306e\u3001\u5148\u982d\u304b\u3089\u7d9a\u304f\u300c1\u300d\u306e\u6570\u3092\u6570\u3048\u305f\u3082\u306e<\/strong>\u3067\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001<code>255.255.255.0<\/code> \u306f\u30012\u9032\u6570\u306b\u3059\u308b\u3068<\/p>\n<p><code>11111111.11111111.11111111.00000000<\/code><\/p>\n<p>\u3068\u306a\u308a\u3001\u5148\u982d\u304b\u3089\u300c1\u300d\u304c24\u500b\u4e26\u3093\u3067\u3044\u307e\u3059\u3002\u3053\u308c\u3092 <code>\/24<\/code> \u3068\u8868\u73fe\u3057\u307e\u3059\u3002\u3064\u307e\u308a\u3001<\/p>\n<p><strong><code>192.168.1.10\/24<\/code><\/strong> \u306f <strong><code>192.168.1.10<\/code>\uff08\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306f <code>255.255.255.0<\/code>\uff09<\/strong>\u3068\u5168\u304f\u540c\u3058\u610f\u5473\u306b\u306a\u308b\u306e\u3067\u3059\u3002<\/p>\n<p>\u5fdc\u7528\u60c5\u5831\u6280\u8853\u8005\u8a66\u9a13\u306e\u554f\u984c\u3084\u3001\u73fe\u4ee3\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u8a08\u3067\u306f\u3001\u3053\u306eCIDR\u8868\u8a18\u304c\u5f53\u305f\u308a\u524d\u306b\u4f7f\u308f\u308c\u307e\u3059\u3002\u305c\u3072\u6163\u308c\u3066\u304a\u304d\u307e\u3057\u3087\u3046\uff01<\/p>\n<h3>5. \u53b3\u9078\u904e\u53bb\u554f\u3068\u601d\u8003\u30c8\u30ec\u30fc\u30b9<\/h3>\n<p>\u3053\u308c\u307e\u3067\u306b\u5b66\u3093\u3060\u77e5\u8b58\u3092\u4f7f\u3063\u3066\u3001\u5fdc\u7528\u60c5\u5831\u6280\u8853\u8005\u8a66\u9a13\u306e\u5b9f\u969b\u306e\u904e\u53bb\u554f\u306b\u30c1\u30e3\u30ec\u30f3\u30b8\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u77e5\u8b58\u304c\u3069\u3046\u8a66\u3055\u308c\u308b\u306e\u304b\u3001\u305d\u3057\u3066\u3069\u3046\u4f7f\u3048\u3070\u89e3\u3051\u308b\u306e\u304b\u3001\u305d\u306e\u601d\u8003\u30d7\u30ed\u30bb\u30b9\u3092\u4e00\u7dd2\u306b\u8fbf\u3063\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<div style=\"background-color: #f5f5f5; border-left: 5px solid #d9534f; padding: 15px; margin: 1.5em 0;\">\n<h4>\u3010\u554f\u984c\u3011\u5e73\u621028\u5e74\u79cb\u671f \u5348\u524d \u554f35\uff08\u6539\uff09<\/h4>\n<p>IP\u30a2\u30c9\u30ec\u30b9\u304c <code>192.168.30.132\/28<\/code> \u3067\u3042\u308bPC\u304c\u5c5e\u3059\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u306f\u3069\u308c\u304b\u3002<\/p>\n<p>\u30a2. 192.168.30.127<\/p>\n<p>\u30a4. 192.168.30.131<\/p>\n<p>\u30a6. 192.168.30.143<\/p>\n<p>\u30a8. 192.168.30.255<\/p>\n<\/div>\n<h4>\u601d\u8003\u30c8\u30ec\u30fc\u30b9\u958b\u59cb\uff01\u301c\u6b63\u89e3\u3078\u306e\u30ed\u30fc\u30c9\u30de\u30c3\u30d7\u301c<\/h4>\n<p>\u3055\u3042\u3001\u3053\u306e\u554f\u984c\u3092\u3069\u3046\u89e3\u304d\u307e\u3059\u304b\uff1f\u7126\u3089\u305a\u3001\u60c5\u5831\u3092\u4e00\u3064\u305a\u3064\u5206\u89e3\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<ol>\n<li><strong>Step 1: \u554f\u984c\u6587\u306e\u30ad\u30fc\u30ef\u30fc\u30c9\u3092\u7279\u5b9a\u3059\u308b<\/strong><br \/>\n    \u307e\u305a\u3001\u554f\u984c\u6587\u304b\u3089\u91cd\u8981\u306a\u60c5\u5831\u3092\u629c\u304d\u51fa\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>IP\u30a2\u30c9\u30ec\u30b9: <code>192.168.30.132<\/code><\/li>\n<li>\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af: <code>\/28<\/code> (CIDR\u8868\u8a18)<\/li>\n<li>\u554f\u308f\u308c\u3066\u3044\u308b\u3082\u306e: <strong>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9<\/strong><\/li>\n<\/ul>\n<p>    \u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u3092\u6c42\u3081\u308b\u306b\u306f\u3001\u307e\u305a<strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9<\/strong>\u3092\u7279\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3001\u3068\u3044\u3046\u3053\u3068\u3092\u601d\u3044\u51fa\u3057\u307e\u3057\u3087\u3046\u3002<\/li>\n<li><strong>Step 2: \u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u300c\/28\u300d\u3092\u89e3\u8aad\u3059\u308b<\/strong><br \/>\n    <code>\/28<\/code> \u306f\u30012\u9032\u6570\u3067\u300c1\u300d\u304c28\u500b\u4e26\u3076\u3068\u3044\u3046\u610f\u5473\u3067\u3057\u305f\u306d\u3002\u7b2c4\u30aa\u30af\u30c6\u30c3\u30c8\uff084\u756a\u76ee\u306e\u6570\u5b57\uff09\u306b\u6ce8\u76ee\u3059\u308b\u3068\u3001<code>11110000<\/code> \u3068\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u309210\u9032\u6570\u306b\u76f4\u3059\u3068 <code>240<\/code> \u3067\u3059\u3002<br \/>\n    \u3064\u307e\u308a\u3001\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306f <code>255.255.255.240<\/code> \u3067\u3059\u3002\u305d\u3057\u3066\u91cd\u8981\u306a\u306e\u306f\u3001\u30db\u30b9\u30c8\u306b\u4f7f\u3048\u308b\u30d3\u30c3\u30c8\u6570\uff08\u30db\u30b9\u30c8\u90e8\u306e\u9577\u3055\uff09\u306f 32 &#8211; 28 = <strong>4\u30d3\u30c3\u30c8<\/strong>\u3060\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/li>\n<li><strong>Step 3: \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u3092\u8a08\u7b97\u3059\u308b<\/strong><br \/>\n    IP\u30a2\u30c9\u30ec\u30b9 <code>192.168.30.132<\/code> \u3068\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af <code>255.255.255.240<\/code> \u306eAND\u6f14\u7b97\u3092\u884c\u3044\u307e\u3059\u3002\u30dd\u30a4\u30f3\u30c8\u306f\u7b2c4\u30aa\u30af\u30c6\u30c3\u30c8\u3060\u3051\u3067\u3059\u3002<\/p>\n<ul>\n<li>132 (IP) \u2192 <code>10000100<\/code><\/li>\n<li>240 (\u30de\u30b9\u30af) \u2192 <code>11110000<\/code><\/li>\n<li>AND\u6f14\u7b97\u7d50\u679c \u2192 <code>10000000<\/code> \u2192 10\u9032\u6570\u3067 <strong>128<\/strong><\/li>\n<\/ul>\n<p>    \u3057\u305f\u304c\u3063\u3066\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u306f <code>192.168.30.128<\/code> \u3068\u306a\u308a\u307e\u3059\u3002<\/li>\n<li><strong>Step 4: \u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u3092\u8a08\u7b97\u3059\u308b<\/strong><br \/>\n    \u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u3068\u306f\u3001<strong>\u30db\u30b9\u30c8\u90e8\u306e\u30d3\u30c3\u30c8\u3092\u3059\u3079\u3066\u300c1\u300d\u306b\u3057\u305f\u3082\u306e<\/strong>\u3067\u3057\u305f\u306d\u3002<br \/>\n    \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9 <code>192.168.30.128<\/code> \u306e\u7b2c4\u30aa\u30af\u30c6\u30c3\u30c8\u306f\u30012\u9032\u6570\u3067 <code>10000000<\/code> \u3067\u3059\u3002\u3053\u306e\u30db\u30b9\u30c8\u90e8\uff08\u4e0b4\u30d3\u30c3\u30c8\uff09\u3092\u3059\u3079\u3066\u300c1\u300d\u306b\u5909\u3048\u307e\u3059\u3002<\/p>\n<p><code>1000<strong style=\"color: red;\">0000<\/strong><\/code> \u2192 <code>1000<strong style=\"color: red;\">1111<\/strong><\/code><\/p>\n<p>    \u3053\u306e <code>10001111<\/code> \u309210\u9032\u6570\u306b\u76f4\u3059\u3068\u3001128 + 8 + 4 + 2 + 1 = <strong>143<\/strong> \u3068\u306a\u308a\u307e\u3059\u3002<\/li>\n<li><strong>Step 5: \u89e3\u7b54\u3092\u9078\u629e\u3059\u308b<\/strong><br \/>\n    \u8a08\u7b97\u7d50\u679c\u304b\u3089\u3001\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u306f <code>192.168.30.143<\/code> \u3068\u5206\u304b\u308a\u307e\u3057\u305f\u3002\u3088\u3063\u3066\u3001\u6b63\u89e3\u306f<strong>\u9078\u629e\u80a2\u30a6<\/strong>\u3067\u3059\u3002<\/li>\n<\/ol>\n<h3>6. \u672a\u6765\u3092\u4e88\u6e2c\u3059\u308b\u51fa\u984c\u4e88\u60f3<\/h3>\n<p>\u904e\u53bb\u554f\u3092\u89e3\u304f\u3053\u3068\u306f\u91cd\u8981\u3067\u3059\u304c\u3001\u672a\u6765\u306e\u8a66\u9a13\u3067\u554f\u308f\u308c\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u65b0\u3057\u3044\u30c6\u30fc\u30de\u3092\u4e88\u6e2c\u3059\u308b\u3053\u3068\u3082\u3001\u30e9\u30a4\u30d0\u30eb\u306b\u5dee\u3092\u3064\u3051\u308b\u9375\u3068\u306a\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u6700\u8fd1\u306e\u6280\u8853\u30c8\u30ec\u30f3\u30c9\u3092\u8e0f\u307e\u3048\u305f\u3001IP\u30a2\u30c9\u30ec\u30b9\u8a08\u7b97\u306e\u65b0\u305f\u306a\u51fa\u984c\u5f62\u5f0f\u30923\u3064\u4e88\u6e2c\u3057\u307e\u3059\u3002<\/p>\n<h4>\u4e88\u6e2c1\uff1a\u30af\u30e9\u30a6\u30c9\uff08VPC\uff09\u74b0\u5883\u3067\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u8a08\u554f\u984c<\/h4>\n<p><strong>\u30b7\u30ca\u30ea\u30aa\u4f8b\uff1a<\/strong><br \/>\n\u300c\u3042\u306a\u305f\u306f\u3001\u3042\u308b\u4f01\u696d\u306e\u30af\u30e9\u30a6\u30c9\u79fb\u884c\u3092\u4efb\u3055\u308c\u305f\u3002Web\u30b5\u30fc\u30d0\u7fa4\u3001AP\u30b5\u30fc\u30d0\u7fa4\u3001DB\u30b5\u30fc\u30d0\u7fa4\u306e\u305f\u3081\u306b\u3001\u305d\u308c\u305e\u308c\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8981\u4ef6\u306e\u7570\u306a\u308b\u30b5\u30d6\u30cd\u30c3\u30c8\u3092\u4f5c\u6210\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002\u4f1a\u793e\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u305fVPC\uff08\u4eee\u60f3\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u30af\u30e9\u30a6\u30c9\uff09\u5168\u4f53\u306eIP\u30a2\u30c9\u30ec\u30b9\u7bc4\u56f2\u306f <code>10.0.0.0\/16<\/code> \u3067\u3042\u308b\u3002\u3042\u306a\u305f\u306a\u3089\u3001\u5404\u30b5\u30d6\u30cd\u30c3\u30c8\u306b\u3069\u306e\u3088\u3046\u306aCIDR\u30d6\u30ed\u30c3\u30af\u3092\u5272\u308a\u5f53\u3066\u308b\u304b\uff1f\u300d<\/p>\n<p><strong>\u554f\u308f\u308c\u308b\u80fd\u529b\uff1a<\/strong><br \/>\n\u3082\u306f\u3084\u3001\u4e0e\u3048\u3089\u308c\u305fIP\u30a2\u30c9\u30ec\u30b9\u304b\u3089\u8a08\u7b97\u3059\u308b\u3060\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u5927\u304d\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08<code>\/16<\/code>\uff09\u3092\u3001\u8981\u4ef6\u306b\u5408\u308f\u305b\u3066\u8907\u6570\u306e\u5c0f\u3055\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08\u4f8b\uff1a<code>\/24<\/code>\uff09\u306b<strong>\u7121\u99c4\u306a\u304f\u3001\u304b\u3064\u91cd\u8907\u306a\u304f\u5206\u5272\u3059\u308b\u300e\u8a2d\u8a08\u80fd\u529b\u300f<\/strong>\u304c\u554f\u308f\u308c\u307e\u3059\u3002VLSM\uff08\u53ef\u5909\u9577\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\uff09\u306e\u77e5\u8b58\u304c\u3088\u308a\u5b9f\u8df5\u7684\u306a\u5f62\u3067\u8a66\u3055\u308c\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n<h4>\u4e88\u6e2c2\uff1aIPv6\u30a2\u30c9\u30ec\u30b9\u306e\u57fa\u790e\u77e5\u8b58\u3092\u554f\u3046\u554f\u984c<\/h4>\n<p><strong>\u30b7\u30ca\u30ea\u30aa\u4f8b\uff1a<\/strong><br \/>\n\u300c\u6b21\u306eIPv6\u30a2\u30c9\u30ec\u30b9\u306e\u3046\u3061\u3001<code>2001:0db8:0000:0000:1234:0000:0000:5678<\/code> \u3092\u30eb\u30fc\u30eb\u306b\u5f93\u3063\u3066\u6700\u3082\u77ed\u304f\u7701\u7565\u3057\u305f\u8868\u8a18\u306f\u3069\u308c\u304b\uff1f\u300d<\/p>\n<p><strong>\u554f\u308f\u308c\u308b\u80fd\u529b\uff1a<\/strong><br \/>\nIPv4\u30a2\u30c9\u30ec\u30b9\u306e\u67af\u6e07\u554f\u984c\u304b\u3089\u3001IPv6\u3078\u306e\u79fb\u884c\u306f\u7740\u5b9f\u306b\u9032\u3093\u3067\u3044\u307e\u3059\u3002\u8907\u96d1\u306a\u8a08\u7b97\u306f\u307e\u3060\u5148\u3060\u3068\u3057\u3066\u3082\u3001IPv6\u30a2\u30c9\u30ec\u30b9\u306e\u9577\u5927\u306a\u8868\u8a18\u3092<strong>\u6b63\u3057\u304f\u7701\u7565\u3059\u308b\u30eb\u30fc\u30eb<\/strong>\uff08\u5148\u982d\u306e0\u306f\u7701\u7565\u3067\u304d\u308b\u3001\u9023\u7d9a\u3059\u308b0\u306f `::` \u3067\u4e00\u5ea6\u3060\u3051\u7701\u7565\u3067\u304d\u308b\u3001\u306a\u3069\uff09\u306f\u3001\u5fdc\u7528\u60c5\u5831\u6280\u8853\u8005\u3068\u3057\u3066\u5fc5\u9808\u306e\u77e5\u8b58\u3067\u3059\u3002\u57fa\u672c\u7684\u306a\u30eb\u30fc\u30eb\u3092\u6b63\u78ba\u306b\u899a\u3048\u3066\u3044\u308b\u304b\u304c\u8a66\u3055\u308c\u307e\u3059\u3002<\/p>\n<h4>\u4e88\u6e2c3\uff1a\u30b3\u30f3\u30c6\u30ca\u6280\u8853\uff08Docker\u306a\u3069\uff09\u3068IP\u30a2\u30c9\u30ec\u30b9<\/h4>\n<p><strong>\u30b7\u30ca\u30ea\u30aa\u4f8b\uff1a<\/strong><br \/>\n\u300cDocker\u30b3\u30f3\u30c6\u30ca\u3092\u5229\u7528\u3057\u305f\u30b7\u30b9\u30c6\u30e0\u69cb\u6210\u56f3\u304c\u793a\u3055\u308c\u3001\u30b3\u30f3\u30c6\u30ca\u9593\u306e\u901a\u4fe1\u3084\u3001\u5916\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3068\u306e\u901a\u4fe1\uff08\u30dd\u30fc\u30c8\u30d5\u30a9\u30ef\u30fc\u30c7\u30a3\u30f3\u30b0\uff09\u306e\u4ed5\u7d44\u307f\u306b\u3064\u3044\u3066\u3001IP\u30a2\u30c9\u30ec\u30b9\u306e\u89b3\u70b9\u304b\u3089\u9069\u5207\u306a\u8aac\u660e\u3092\u9078\u629e\u3055\u305b\u308b\u554f\u984c\u300d<\/p>\n<p><strong>\u554f\u308f\u308c\u308b\u80fd\u529b\uff1a<\/strong><br \/>\n\u8fd1\u5e74\u306e\u30b7\u30b9\u30c6\u30e0\u958b\u767a\u3067\u5fc5\u9808\u3068\u306a\u3063\u305f\u30b3\u30f3\u30c6\u30ca\u6280\u8853\u3002\u5404\u30b3\u30f3\u30c6\u30ca\u304c\u30db\u30b9\u30c8OS\u5185\u306b\u4f5c\u3089\u308c\u305f\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u3067\u3001\u3069\u306e\u3088\u3046\u306bIP\u30a2\u30c9\u30ec\u30b9\u3092\u5272\u308a\u5f53\u3066\u3089\u308c\u3001\u76f8\u4e92\u306b\u901a\u4fe1\u3057\u3066\u3044\u308b\u306e\u304b\u3002\u305d\u306e<strong>\u57fa\u672c\u7684\u306a\u4ed5\u7d44\u307f\u306e\u7406\u89e3\u5ea6<\/strong>\u304c\u554f\u308f\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002NAT\u3084\u30dd\u30fc\u30c8\u30de\u30c3\u30d4\u30f3\u30b0\u3068\u3044\u3063\u305f\u95a2\u9023\u6280\u8853\u3068\u7d50\u3073\u3064\u3051\u3066\u7406\u89e3\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u91cd\u8981\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>7. \u77e5\u8b58\u3092\u4f53\u7cfb\u5316\u3059\u308b\u95a2\u9023\u30de\u30c3\u30d7<\/h3>\n<p>IP\u30a2\u30c9\u30ec\u30b9\u3001\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3001DNS\u3001DHCP&#8230;\u3002\u305f\u304f\u3055\u3093\u306e\u5c02\u9580\u7528\u8a9e\u304c\u51fa\u3066\u304d\u307e\u3057\u305f\u304c\u3001\u305d\u308c\u3089\u306f\u30d0\u30e9\u30d0\u30e9\u306b\u5b58\u5728\u3059\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u3053\u3067\u306f\u300cPC\u306e\u96fb\u6e90\u3092\u5165\u308c\u3066\u304b\u3089\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306eWeb\u30b5\u30a4\u30c8\u3092\u898b\u308b\u307e\u3067\u300d\u3068\u3044\u3046\u7269\u8a9e\u306b\u6cbf\u3063\u3066\u3001\u77e5\u8b58\u306e\u7e4b\u304c\u308a\u3092\u5730\u56f3\u306b\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<div style=\"background-color: #f9f9f9; border: 1px solid #ddd; padding: 20px; border-radius: 8px;\">\n<ul>\n<li><strong>\u30b9\u30bf\u30fc\u30c8\u5730\u70b9\uff1a\u3042\u306a\u305f\u306ePC<\/strong>\n<ul>\n<li><strong>\u2460 IP\u30a2\u30c9\u30ec\u30b9\u3092\u53d6\u5f97\u3057\u305f\u3044\uff01 \u2192 \u52a9\u3051\u3066\u3001DHCP\u30b5\u30fc\u30d0\uff01<\/strong>\n<ul>\n<li><strong>DHCP (Dynamic Host Configuration Protocol)<\/strong>\u304c\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u300c\u4f4f\u6240\u300d\u3092\u81ea\u52d5\u3067\u5272\u308a\u632f\u3063\u3066\u304f\u308c\u308b\u3002<\/li>\n<li>DHCP\u304c\u6559\u3048\u3066\u304f\u308c\u308b4\u70b9\u30bb\u30c3\u30c8\uff1a\n<ol>\n<li><strong>IP\u30a2\u30c9\u30ec\u30b9<\/strong> (\u4f8b: <code>192.168.1.10<\/code>) \u2190 \u3042\u306a\u305f\u306ePC\u306e\u4f4f\u6240<\/li>\n<li><strong>\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af<\/strong> (\u4f8b: <code>\/24<\/code>) \u2190 \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u7bc4\u56f2\u3092\u793a\u3059\u533a\u5207\u308a\u7dda<\/li>\n<li><strong>\u30c7\u30d5\u30a9\u30eb\u30c8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4<\/strong> (\u4f8b: <code>192.168.1.1<\/code>) \u2190 \u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3078\u306e\u300c\u51fa\u53e3\u300d\u3068\u306a\u308b\u30eb\u30fc\u30bf\u306e\u30a2\u30c9\u30ec\u30b9<\/li>\n<li><strong>DNS\u30b5\u30fc\u30d0\u306e\u30a2\u30c9\u30ec\u30b9<\/strong> \u2190 Web\u30b5\u30a4\u30c8\u306e\u4f4f\u6240\u3092\u6559\u3048\u3066\u304f\u308c\u308b\u300c\u96fb\u8a71\u5e33\u300d\u30b5\u30fc\u30d0\u306e\u5834\u6240<\/li>\n<\/ol>\n<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u2461 \u81ea\u5206\u306e\u6240\u5c5e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u628a\u63e1\u3059\u308b<\/strong>\n<ul>\n<li>\u53d7\u3051\u53d6\u3063\u305f<strong>IP\u30a2\u30c9\u30ec\u30b9<\/strong>\u3068<strong>\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af<\/strong>\u3092\u4f7f\u3044\u3001PC\u306f\u81ea\u5206\u306e\u6240\u5c5e\u3059\u308b<strong>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9<\/strong> (<code>192.168.1.0<\/code>) \u3092\u77e5\u308b\u3002<\/li>\n<li>\u81ea\u5206\u306e<strong>\u30db\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u90e8<\/strong> (<code>10<\/code>) \u3092\u8a8d\u8b58\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u3067\u306e\u500b\u6027\u3092\u78ba\u7acb\u3059\u308b\u3002<\/li>\n<li>\u540c\u3058\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u5168\u54e1\u306b\u9023\u7d61\u3059\u308b\u305f\u3081\u306e<strong>\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9<\/strong> (<code>192.168.1.255<\/code>) \u3082\u628a\u63e1\u3059\u308b\u3002<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u2462 Web\u30b5\u30a4\u30c8\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b<\/strong>\n<ul>\n<li>\u30d6\u30e9\u30a6\u30b6\u306b\u300cexample.com\u300d\u3068\u5165\u529b\u3002<\/li>\n<li>PC\u306f\u3001DHCP\u306b\u6559\u308f\u3063\u305f<strong>DNS\u30b5\u30fc\u30d0<\/strong>\u306b\u300cexample.com\u3055\u3093\u306eIP\u30a2\u30c9\u30ec\u30b9\u306f\u4f55\u756a\u3067\u3059\u304b\uff1f\u300d\u3068\u554f\u3044\u5408\u308f\u305b\u308b\u3002<\/li>\n<li>DNS\u30b5\u30fc\u30d0\u304c\u300c<code>93.184.216.34<\/code>\u3067\u3059\u3088\u300d\u3068\u8fd4\u7b54\u3002<\/li>\n<li>PC\u306f\u3001\u305d\u306eIP\u30a2\u30c9\u30ec\u30b9\u5b9b\u306e\u901a\u4fe1\u30c7\u30fc\u30bf\u3092\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u3078\u306e\u51fa\u53e3\u3067\u3042\u308b<strong>\u30c7\u30d5\u30a9\u30eb\u30c8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4<\/strong>\u306b\u300c\u3053\u308c\u3001\u304a\u9858\u3044\uff01\u300d\u3068\u8ee2\u9001\u3059\u308b\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li><strong>\u30b4\u30fc\u30eb\uff1aWeb\u30b5\u30a4\u30c8\u306e\u8868\u793a\uff01<\/strong><\/li>\n<\/ul>\n<\/div>\n<h3>8. \u3042\u306a\u305f\u3060\u3051\u306e\u5b66\u7fd2\u30ed\u30fc\u30c9\u30de\u30c3\u30d7<\/h3>\n<p>\u77e5\u8b58\u3092\u30a4\u30f3\u30d7\u30c3\u30c8\u3059\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u624b\u3092\u52d5\u304b\u3057\u3066\u3053\u305d\u30b9\u30ad\u30eb\u306f\u5b9a\u7740\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306e4\u30b9\u30c6\u30c3\u30d7\u306e\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\u3092\u5b9f\u8df5\u3057\u3066\u3001IP\u30a2\u30c9\u30ec\u30b9\u8a08\u7b97\u3092\u3042\u306a\u305f\u306e\u300c\u5f97\u610f\u6280\u300d\u306b\u5909\u3048\u307e\u3057\u3087\u3046\uff01<\/p>\n<ol>\n<li>\n<h4>Step 1: \u3010\u30a6\u30a9\u30fc\u30df\u30f3\u30b0\u30a2\u30c3\u30d7\u301110\u9032\u6570\u21d42\u9032\u6570\u5909\u63db\u306e\u53cd\u5fa9\u7df4\u7fd2<\/h4>\n<p>\u307e\u305a\u306f\u8a08\u7b97\u306e\u57fa\u790e\u4f53\u529b\u4f5c\u308a\u3067\u3059\u3002\u7d19\u3068\u30da\u30f3\u3092\u7528\u610f\u3057\u3001<code>0<\/code>, <code>128<\/code>, <code>192<\/code>, <code>224<\/code>, <code>240<\/code>, <code>248<\/code>, <code>252<\/code>, <code>255<\/code> \u3068\u3044\u3063\u305f\u3001\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3067\u983b\u51fa\u3059\u308b\u6570\u5b57\u3092\u3001\u4f55\u3082\u898b\u305a\u306b2\u9032\u6570\u306b\u5909\u63db\u3059\u308b\u7df4\u7fd2\u30925\u56de\u7e70\u308a\u8fd4\u3057\u307e\u3057\u3087\u3046\u3002\u30b9\u30d4\u30fc\u30c9\u3068\u6b63\u78ba\u6027\u304c\u683c\u6bb5\u306b\u4e0a\u304c\u308a\u3001\u8a08\u7b97\u3078\u306e\u5fc3\u7406\u7684\u30cf\u30fc\u30c9\u30eb\u304c\u4e0b\u304c\u308a\u307e\u3059\u3002<\/p>\n<\/li>\n<li>\n<h4>Step 2: \u3010\u57fa\u790e\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\u3011AND\u6f14\u7b97\u3092\u4f53\u3067\u899a\u3048\u308b<\/h4>\n<p>\u6b21\u306b\u3001AND\u6f14\u7b97\u306e\u611f\u899a\u3092\u63b4\u307f\u307e\u3059\u3002\u9069\u5f53\u306aIP\u30a2\u30c9\u30ec\u30b9\uff08\u4f8b: <code>172.16.100.50<\/code>\uff09\u3068\u3001\u3044\u304f\u3064\u304b\u306eCIDR\uff08\u4f8b: <code>\/20<\/code>, <code>\/25<\/code>, <code>\/29<\/code>\uff09\u3092\u81ea\u7531\u306b\u7d44\u307f\u5408\u308f\u305b\u3066\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\u81ea\u529b\u3067\u8a08\u7b97\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u96fb\u5353\u306f\u4f7f\u308f\u305a\u3001\u81ea\u5206\u306e\u624b\u3067\u8a08\u7b97\u3057\u3001\u7b54\u3048\u3092\u5c0e\u304d\u51fa\u3059\u30d7\u30ed\u30bb\u30b9\u305d\u306e\u3082\u306e\u304c\u6700\u9ad8\u306e\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\u3067\u3059\u3002<\/p>\n<\/li>\n<li>\n<h4>Step 3: \u3010\u5b9f\u6226\u6f14\u7fd2\uff08\u5348\u524d\u7de8\uff09\u3011\u95a2\u9023\u904e\u53bb\u554f\u3067\u81ea\u4fe1\u3092\u3064\u3051\u308b<\/h4>\n<p>\u57fa\u790e\u304c\u56fa\u307e\u3063\u305f\u3089\u3001\u5fdc\u7528\u60c5\u5831\u6280\u8853\u8005\u8a66\u9a13\u306e\u5348\u524d\u554f\u984c\u306b\u6311\u6226\u3067\u3059\u3002IP\u30a2\u30c9\u30ec\u30b9\u3084\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306b\u95a2\u9023\u3059\u308b\u554f\u984c\u30925\u554f\u63a2\u3057\u3066\u89e3\u3044\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u6642\u9593\u3092\u8a08\u308b\u3068\u3001\u3088\u308a\u672c\u756a\u306b\u8fd1\u3044\u30c8\u30ec\u30fc\u30cb\u30f3\u30b0\u306b\u306a\u308a\u307e\u3059\u3002\u9593\u9055\u3048\u305f\u554f\u984c\u306f\u3001\u306a\u305c\u9593\u9055\u3048\u305f\u306e\u304b\u3092\u5fc5\u305a\u5206\u6790\u3057\u3001\u300c\u6b21\u306b\u540c\u3058\u554f\u984c\u304c\u51fa\u305f\u3089\u7d76\u5bfe\u306b\u89e3\u3051\u308b\u300d\u72b6\u614b\u306b\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n<\/li>\n<li>\n<h4>Step 4: \u3010\u5fdc\u7528\u5075\u5bdf\uff08\u5348\u5f8c\u7de8\uff09\u3011\u8a2d\u8a08\u8005\u306e\u8996\u70b9\u3092\u8997\u3044\u3066\u307f\u308b<\/h4>\n<p>\u6700\u5f8c\u306e\u4ed5\u4e0a\u3052\u3067\u3059\u3002\u5348\u5f8c\u554f\u984c\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5206\u91ce\u306e\u554f\u984c\u6587\u3068\u69cb\u6210\u56f3<strong>\u3060\u3051<\/strong>\u3092\u8aad\u3093\u3067\u307f\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u3053\u3067\u306f\u554f\u984c\u3092\u89e3\u304f\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u300c\u3042\u3042\u3001\u3053\u306e\u90e8\u5206\u3067\u30b5\u30d6\u30cd\u30c3\u30c8\u306e\u77e5\u8b58\u304c\u4f7f\u308f\u308c\u3066\u3044\u308b\u3093\u3060\u306a\u300d\u300c\u3053\u306e\u8981\u4ef6\u3092\u6e80\u305f\u3059\u306b\u306f\u3001IP\u30a2\u30c9\u30ec\u30b9\u3092\u3053\u3046\u3084\u3063\u3066\u5206\u5272\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u306e\u304b\u300d\u3068\u3001<strong>\u8a2d\u8a08\u8005\u306e\u8996\u70b9<\/strong>\u3067\u8ab2\u984c\u3092\u773a\u3081\u3066\u307f\u308b\u3053\u3068\u304c\u76ee\u7684\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u77e5\u8b58\u306e\u4f7f\u308f\u308c\u65b9\u304c\u7acb\u4f53\u7684\u306b\u898b\u3048\u3066\u304d\u307e\u3059\u3002<\/p>\n<\/li>\n<\/ol>\n<h3>9. \u7406\u89e3\u5ea6\u30c1\u30a7\u30c3\u30af\uff06\u30c1\u30e3\u30ec\u30f3\u30b8\u30af\u30a4\u30ba<\/h3>\n<p>\u3053\u3053\u307e\u3067\u306e\u5185\u5bb9\u304c\u3069\u308c\u3060\u3051\u8eab\u306b\u3064\u3044\u305f\u304b\u30012\u3064\u306e\u30af\u30a4\u30ba\u3067\u8155\u8a66\u3057\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u8a66\u9a13\u672c\u756a\u3068\u306f\u4e00\u5473\u9055\u3063\u305f\u3001\u5b9f\u8df5\u7684\u306a\u554f\u3044\u3067\u3059\u3002<\/p>\n<div style=\"background-color: #f5f5f5; border-left: 5px solid #5cb85c; padding: 15px; margin: 1.5em 0;\">\n<h4>\u30af\u30a4\u30ba1\uff1a\u540c\u3058\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u63a2\u305b\uff01<\/h4>\n<p>\u4ee5\u4e0b\u306e3\u53f0\u306ePC\u306f\u3001\u4e92\u3044\u306b\u901a\u4fe1\u3067\u304d\u308b\u540c\u3058\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u5c5e\u3057\u3066\u3044\u308b\u3068\u8a00\u3048\u308b\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n<ul>\n<li>PC A: <code>192.168.10.150\/25<\/code><\/li>\n<li>PC B: <code>192.168.10.200\/25<\/code><\/li>\n<li>PC C: <code>192.168.10.120\/25<\/code><\/li>\n<\/ul>\n<details style=\"margin-top: 10px;\">\n<summary style=\"cursor: pointer; font-weight: bold;\">\u8003\u3048\u65b9\u3068\u7b54\u3048\u3092\u898b\u308b<\/summary>\n<div style=\"padding-top: 10px;\">\n<p><strong>\u3010\u8003\u3048\u65b9\u3011<\/strong><br \/>\n            \u5404PC\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u3092\u8a08\u7b97\u3057\u3066\u3001\u3059\u3079\u3066\u540c\u3058\u306b\u306a\u308c\u3070\u300cYes\u300d\u3001\u4e00\u3064\u3067\u3082\u9055\u3048\u3070\u300cNo\u300d\u3067\u3059\u3002<code>\/25<\/code>\u306e\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306f <code>255.255.255.128<\/code> \u3067\u3059\u306d\u3002<br \/>\n            \u30fbPC A: <code>150<\/code> \u3068 <code>128<\/code> \u306eAND\u6f14\u7b97 \u2192 <code>128<\/code>\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u306f <code>192.168.10.128<\/code><br \/>\n            \u30fbPC B: <code>200<\/code> \u3068 <code>128<\/code> \u306eAND\u6f14\u7b97 \u2192 <code>128<\/code>\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u306f <code>192.168.10.128<\/code><br \/>\n            \u30fbPC C: <code>120<\/code> \u3068 <code>128<\/code> \u306eAND\u6f14\u7b97 \u2192 <code>0<\/code>\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u306f <code>192.168.10.0<\/code><\/p>\n<p><strong>\u3010\u7b54\u3048\u3011<\/strong><br \/>\n            <strong>No\u3002<\/strong>PC A\u3068PC B\u306f\u540c\u3058\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08<code>192.168.10.128\/25<\/code>\uff09\u306b\u3044\u307e\u3059\u304c\u3001PC C\u306f\u5225\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\uff08<code>192.168.10.0\/25<\/code>\uff09\u306b\u3044\u308b\u305f\u3081\u30013\u53f0\u304c\u4e92\u3044\u306b\u901a\u4fe1\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<\/p><\/div>\n<\/details>\n<\/div>\n<div style=\"background-color: #f5f5f5; border-left: 5px solid #f0ad4e; padding: 15px; margin: 1.5em 0;\">\n<h4>\u30af\u30a4\u30ba2\uff1a\u6700\u9069\u306a\u30b5\u30d6\u30cd\u30c3\u30c8\u3092\u8a2d\u8a08\u305b\u3088\uff01<\/h4>\n<p>\u3042\u306a\u305f\u306f\u3001\u3042\u308b\u90e8\u7f72\u306e\u65b0\u3057\u3044\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u8a2d\u8a08\u3057\u3066\u3044\u307e\u3059\u3002\u5fc5\u8981\u306aPC\u306e\u53f0\u6570\u306f<strong>\u6700\u5927\u306750\u53f0<\/strong>\u3067\u3059\u3002\u5272\u308a\u5f53\u3066\u3089\u308c\u305fIP\u30a2\u30c9\u30ec\u30b9\u7bc4\u56f2 <code>172.20.10.0\/24<\/code> \u306e\u4e2d\u304b\u3089\u3001\u6700\u3082\u7121\u99c4\u306e\u306a\u3044\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3092\u9078\u3076\u3068\u3057\u305f\u3089\u3001\u6b21\u306e\u3046\u3061\u3069\u308c\u304c\u6700\u9069\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n<p>\u30a2. <code>\/24<\/code> (255.255.255.0)<\/p>\n<p>\u30a4. <code>\/25<\/code> (255.255.255.128)<\/p>\n<p>\u30a6. <code>\/26<\/code> (255.255.255.192)<\/p>\n<p>\u30a8. <code>\/27<\/code> (255.255.255.224)<\/p>\n<details style=\"margin-top: 10px;\">\n<summary style=\"cursor: pointer; font-weight: bold;\">\u8003\u3048\u65b9\u3068\u7b54\u3048\u3092\u898b\u308b<\/summary>\n<div style=\"padding-top: 10px;\">\n<p><strong>\u3010\u8003\u3048\u65b9\u3011<\/strong><br \/>\n            \u300c\u5229\u7528\u53ef\u80fd\u306a\u30db\u30b9\u30c8\u6570\u300d\u304c50\u4ee5\u4e0a\u3067\u3001\u304b\u3064\u6700\u308250\u306b\u8fd1\u3044\u3082\u306e\u3092\u9078\u3073\u307e\u3059\u3002\u5229\u7528\u53ef\u80fd\u306a\u30db\u30b9\u30c8\u6570\u306f\u300c2\u306e(\u30db\u30b9\u30c8\u90e8\u306e\u30d3\u30c3\u30c8\u6570)\u4e57 &#8211; 2\u300d\u3067\u8a08\u7b97\u3067\u304d\u307e\u3059\u306d\u3002<br \/>\n            \u30fb\u30a2 (<code>\/24<\/code>): \u30db\u30b9\u30c8\u90e88\u30d3\u30c3\u30c8\u30022<sup>8<\/sup>-2 = 254\u53f0\u3002\u591a\u3059\u304e\u3002<br \/>\n            \u30fb\u30a4 (<code>\/25<\/code>): \u30db\u30b9\u30c8\u90e87\u30d3\u30c3\u30c8\u30022<sup>7<\/sup>-2 = 126\u53f0\u3002\u307e\u3060\u591a\u3044\u3002<br \/>\n            \u30fb\u30a6 (<code>\/26<\/code>): \u30db\u30b9\u30c8\u90e86\u30d3\u30c3\u30c8\u30022<sup>6<\/sup>-2 = <strong>62\u53f0<\/strong>\u300250\u53f0\u3092\u53ce\u5bb9\u3067\u304d\u3001\u7121\u99c4\u304c\u5c11\u306a\u3044\uff01<br \/>\n            \u30fb\u30a8 (<code>\/27<\/code>): \u30db\u30b9\u30c8\u90e85\u30d3\u30c3\u30c8\u30022<sup>5<\/sup>-2 = 30\u53f0\u3002\u8db3\u308a\u306a\u3044\u3002<\/p>\n<p><strong>\u3010\u7b54\u3048\u3011<\/strong><br \/>\n            <strong>\u30a6. <code>\/26<\/code><\/strong>\u300250\u53f0\u306e\u30db\u30b9\u30c8\u3092\u53ce\u5bb9\u3067\u304d\u308b\u6700\u5c0f\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u3042\u308a\u3001\u6700\u3082IP\u30a2\u30c9\u30ec\u30b9\u306e\u7121\u99c4\u304c\u5c11\u306a\u3044\u305f\u3081\u3067\u3059\u3002<\/p>\n<\/p><\/div>\n<\/details>\n<\/div>\n<h3>10. \u6700\u7d42\u30c1\u30a7\u30c3\u30af\u3068\u307e\u3068\u3081<\/h3>\n<p>\u9577\u3044\u5192\u967a\u3001\u672c\u5f53\u306b\u304a\u75b2\u308c\u69d8\u3067\u3057\u305f\u3002\u6700\u5f8c\u306b\u3001\u79c1\u305f\u3061\u304c\u4e00\u7dd2\u306b\u65c5\u3057\u3066\u898b\u3064\u3051\u305f\u5b9d\u7269\u3001\u3064\u307e\u308a\u3053\u306e\u8a18\u4e8b\u306e\u6700\u3082\u91cd\u8981\u306a\u30dd\u30a4\u30f3\u30c8\u3092\u518d\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h4>\u4eca\u56de\u306e\u5192\u967a\u306e\u30cf\u30a4\u30e9\u30a4\u30c8<\/h4>\n<ul>\n<li><strong>\u30db\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u306f\u300c\u90e8\u5c4b\u756a\u53f7\u300d<\/strong>\uff1aIP\u30a2\u30c9\u30ec\u30b9\u306f\u300c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u90e8\uff08\u4f4f\u6240\uff09\u300d\u3068\u300c\u30db\u30b9\u30c8\u90e8\uff08\u90e8\u5c4b\u756a\u53f7\uff09\u300d\u3067\u3067\u304d\u3066\u304a\u308a\u3001\u3053\u306e\u30a4\u30e1\u30fc\u30b8\u304c\u5168\u3066\u306e\u57fa\u672c\u3067\u3059\u3002<\/li>\n<li><strong>\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306f\u300c\u533a\u5207\u308a\u7dda\u300d<\/strong>\uff1a\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306f\u30012\u9032\u6570\u306e\u300c1\u300d\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u90e8\u3092\u3001\u300c0\u300d\u3067\u30db\u30b9\u30c8\u90e8\u3092\u793a\u3059\u3001\u975e\u5e38\u306b\u4fbf\u5229\u306a\u300c\u533a\u5207\u308a\u7dda\u300d\u306e\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u8a08\u7b97\u306e\u6838\u5fc3\u306f\u300cAND\u6f14\u7b97\u300d<\/strong>\uff1a\u96e3\u3057\u304f\u898b\u3048\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30a2\u30c9\u30ec\u30b9\u306e\u8a08\u7b97\u3082\u3001\u305d\u306e\u6b63\u4f53\u306fIP\u30a2\u30c9\u30ec\u30b9\u3068\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306e\u5358\u7d14\u306a\u300cAND\u6f14\u7b97\u300d\u306b\u904e\u304e\u307e\u305b\u3093\u3002<\/li>\n<li><strong>CIDR\u8868\u8a18\u3092\u4f7f\u3044\u3053\u306a\u3059<\/strong>\uff1a\u300c\/24\u300d\u306e\u3088\u3046\u306aCIDR\u8868\u8a18\u306f\u3001\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306e\u300c1\u300d\u306e\u6570\u3092\u6570\u3048\u305f\u3060\u3051\u306e\u4fbf\u5229\u306a\u30b7\u30e7\u30fc\u30c8\u30ab\u30c3\u30c8\u3002\u3053\u308c\u306b\u6163\u308c\u308b\u3053\u3068\u304c\u5b9f\u8df5\u3078\u306e\u8fd1\u9053\u3067\u3059\u3002<\/li>\n<\/ul>\n<h4>\u6700\u5f8c\u306e\u30e1\u30c3\u30bb\u30fc\u30b8\uff1a\u3042\u306a\u305f\u3078\u306e\u5fdc\u63f4\u6b4c<\/h4>\n<p>\u3053\u3053\u307e\u3067\u3053\u306e\u8a18\u4e8b\u3092\u8aad\u307f\u9032\u3081\u3001\u7406\u89e3\u3057\u305f\u3042\u306a\u305f\u306f\u3001\u3082\u3046IP\u30a2\u30c9\u30ec\u30b9\u8a08\u7b97\u306e\u521d\u5fc3\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u4e00\u3064\u4e00\u3064\u306e\u8a08\u7b97\u306e\u88cf\u306b\u3042\u308b\u300c\u306a\u305c\uff1f\u300d\u3092\u77e5\u308a\u3001\u77e5\u8b58\u3092\u4f53\u7cfb\u7684\u306b\u6574\u7406\u3057\u3001\u305d\u308c\u3092\u3069\u3046\u4f7f\u3046\u304b\u3092\u5b66\u3093\u3060\u3001\u7acb\u6d3e\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a2\u6c42\u8005\u3067\u3059\u3002<\/p>\n<p>\u30db\u30b9\u30c8\u30a2\u30c9\u30ec\u30b9\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u3001\u5e83\u5927\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u4e16\u754c\u3092\u63a2\u6c42\u3059\u308b\u305f\u3081\u306e\u3001\u307b\u3093\u306e\u7b2c\u4e00\u6b69\u306b\u904e\u304e\u307e\u305b\u3093\u3002\u3057\u304b\u3057\u3001\u3053\u306e\u4e00\u6b69\u306f\u3001\u3053\u308c\u304b\u3089\u306e\u3042\u306a\u305f\u306e\u5b66\u7fd2\u3092\u652f\u3048\u308b\u3001\u975e\u5e38\u306b\u91cd\u8981\u3067\u5f37\u56fa\u306a\u571f\u53f0\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u4eca\u65e5\u624b\u306b\u5165\u308c\u305f<strong>\u300c&#8221;\u306a\u305c\uff1f&#8221;\u3092\u8003\u3048\u308b\u529b\u300d<\/strong>\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5206\u91ce\u3060\u3051\u3067\u306a\u304f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3001\u30af\u30e9\u30a6\u30c9\u306a\u3069\u3001IT\u306e\u3042\u3089\u3086\u308b\u5206\u91ce\u3067\u3042\u306a\u305f\u3092\u52a9\u3051\u308b\u6700\u5f37\u306e\u6b66\u5668\u306b\u306a\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n<p>\u5fdc\u7528\u60c5\u5831\u6280\u8853\u8005\u8a66\u9a13\u306e\u5408\u683c\u3001\u305d\u3057\u3066\u305d\u306e\u5148\u306eIT\u30d7\u30ed\u30d5\u30a7\u30c3\u30b7\u30e7\u30ca\u30eb\u3068\u3057\u3066\u306e\u3042\u306a\u305f\u306e\u8f1d\u304b\u3057\u3044\u672a\u6765\u3092\u3001\u30d1\u30fc\u30c8\u30ca\u30fc\u3068\u3057\u3066\u5fc3\u304b\u3089\u5fdc\u63f4\u3057\u3066\u3044\u307e\u3059\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u300cIP\u30a2\u30c9\u30ec\u30b9\u3068\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u306e\u8a08\u7b97\u3001\u53c2\u8003\u66f8\u3092\u8aad\u3093\u3067\u3082\u3044\u307e\u3044\u3061\u30d4\u30f3\u3068\u3053\u306a\u3044\u2026\u300d\u300c\u7d50\u5c40\u30012\u9032\u6570\u306b\u5909\u63db\u3057\u3066AND\u6f14\u7b97\u3059\u308b\u3001\u3068\u4e38\u6697\u8a18\u3057\u306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