{"id":132,"date":"2025-05-11T08:16:00","date_gmt":"2025-05-10T23:16:00","guid":{"rendered":"https:\/\/ccna-curriculum.tech-village.co.jp\/?p=132"},"modified":"2025-10-13T15:45:12","modified_gmt":"2025-10-13T06:45:12","slug":"14-dhcp","status":"publish","type":"post","link":"https:\/\/ccna-curriculum.tech-village.co.jp\/?p=132","title":{"rendered":"DHCP\uff08\u57fa\u790e\uff09"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">DHCP\u3068\u306f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">DHCP\uff08Dynamic Host Configuration Protocol\uff09<\/span><\/strong>\u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3059\u308b\u969b\u306b\u5fc5\u8981\u306aIP\u30a2\u30c9\u30ec\u30b9\u3084\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3001DNS\u30b5\u30fc\u30d0\u306e\u60c5\u5831\u3092\u81ea\u52d5\u7684\u306b\u5272\u308a\u5f53\u3066\u308b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u5c64\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002<br>\u30e6\u30fc\u30b6\u30fc\u304c\u624b\u52d5\u3067\u8a2d\u5b9a\u3057\u306a\u304f\u3066\u3082\u3001\u30b1\u30fc\u30d6\u30eb\u3092\u3064\u306a\u3050\u3060\u3051\u3067\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u63a5\u7d9a\u304c\u53ef\u80fd\u306b\u306a\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DHCP\u306e\u69cb\u6210\u8981\u7d20<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u69cb\u6210\u8981\u7d20<\/th><th>\u5f79\u5272<\/th><th>\u4f7f\u7528\u3055\u308c\u308b\u6a5f\u5668<\/th><\/tr><\/thead><tbody><tr><td>DHCP\u30b5\u30fc\u30d0<\/td><td>IP\u30a2\u30c9\u30ec\u30b9\u306a\u3069\u306e\u8a2d\u5b9a\u60c5\u5831\u3092\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u5272\u308a\u5f53\u3066\u308b<\/td><td>Windows\u30b5\u30fc\u30d0\u3001Linux\u30b5\u30fc\u30d0\u3001Cisco\u30eb\u30fc\u30bf\u306a\u3069<\/td><\/tr><tr><td>DHCP\u30af\u30e9\u30a4\u30a2\u30f3\u30c8<\/td><td>DHCP\u30b5\u30fc\u30d0\u304b\u3089\u8a2d\u5b9a\u60c5\u5831\u3092\u53d7\u3051\u53d6\u308b<\/td><td>Windows\u30d1\u30bd\u30b3\u30f3\u3001\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3001IP\u96fb\u8a71\u306a\u3069<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">DHCP\u306e\u30d1\u30b1\u30c3\u30c8<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">DHCP\u306fUDP\u4e0a\u3067\u52d5\u4f5c\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b5\u30fc\u30d0\u5b9b\u3066\u306e\u30dd\u30fc\u30c8\u756a\u53f7\uff1a67<\/li>\n\n\n\n<li>\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u5b9b\u3066\u306e\u30dd\u30fc\u30c8\u756a\u53f7\uff1a68<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">DHCP\u30e1\u30c3\u30bb\u30fc\u30b8\u306e\u4e2d\u306b\u306f\u3001\u5272\u308a\u5f53\u3066\u308bIP\u30a2\u30c9\u30ec\u30b9\u3084\u30b5\u30d6\u30cd\u30c3\u30c8\u60c5\u5831\u306a\u3069\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DHCP\u306e\u4ed5\u7d44\u307f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">DHCP\u306e\u3084\u308a\u53d6\u308a\u306f\u5927\u304d\u304f4\u6bb5\u968e\u306b\u5206\u304b\u308c\u307e\u3059\u3002\u3053\u308c\u3092\u300cDORA\uff08Discover, Offer, Request, Ack\uff09\u300d\u3068\u547c\u3073\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Discover<\/strong><br>\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u300c\u8ab0\u304bIP\u30a2\u30c9\u30ec\u30b9\u3092\u304f\u3060\u3055\u3044\u300d\u3068\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u3067\u5168\u4f53\u306b\u554f\u3044\u5408\u308f\u305b\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>Offer<\/strong><br>DHCP\u30b5\u30fc\u30d0\u304c\u7a7a\u3044\u3066\u3044\u308bIP\u30a2\u30c9\u30ec\u30b9\u3092\u9078\u3073\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u63d0\u6848\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>Request<\/strong><br>\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304c\u300c\u305d\u306eIP\u3092\u4f7f\u3044\u307e\u3059\u300d\u3068\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002<\/li>\n\n\n\n<li><strong>Ack<\/strong><br>\u30b5\u30fc\u30d0\u304c\u300c\u305d\u306eIP\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u3063\u3066\u3088\u3044\u300d\u3068\u627f\u8a8d\u3057\u3001\u5229\u7528\u958b\u59cb\u3067\u304d\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u6d41\u308c\u306b\u3088\u308a\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u81ea\u52d5\u7684\u306bIP\u30a2\u30c9\u30ec\u30b9\u3092\u53d6\u5f97\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u53c2\u52a0\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DHCP\u30b5\u30fc\u30d0\u306e\u8a2d\u5b9a\u9805\u76ee<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">DHCP\u30b5\u30fc\u30d0\u306b\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u8a2d\u5b9a\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>IP\u30a2\u30c9\u30ec\u30b9\u306e\u5272\u308a\u5f53\u3066\u7bc4\u56f2\uff08\u30a2\u30c9\u30ec\u30b9\u30d7\u30fc\u30eb\uff09<\/li>\n\n\n\n<li>\u30b5\u30d6\u30cd\u30c3\u30c8\u30de\u30b9\u30af<\/li>\n\n\n\n<li>\u30c7\u30d5\u30a9\u30eb\u30c8\u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u306e\u30a2\u30c9\u30ec\u30b9<\/li>\n\n\n\n<li>DNS\u30b5\u30fc\u30d0\u306eIP\u30a2\u30c9\u30ec\u30b9<\/li>\n\n\n\n<li>\u30ea\u30fc\u30b9\u671f\u9593\uff08IP\u30a2\u30c9\u30ec\u30b9\u3092\u4f7f\u7528\u3067\u304d\u308b\u671f\u9593\uff09<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u521d\u5fc3\u8005\u5411\u3051\u30a4\u30e1\u30fc\u30b8<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">DHCP\u3092\u4eba\u9593\u306e\u4e16\u754c\u306b\u4f8b\u3048\u308b\u3068\u300c\u30db\u30c6\u30eb\u306e\u30d5\u30ed\u30f3\u30c8\u300d\u306b\u4f3c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5bbf\u6cca\u5ba2\uff08\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\uff09\u304c\u6765\u308b\u3068\u3001\u7a7a\u3044\u3066\u3044\u308b\u90e8\u5c4b\uff08IP\u30a2\u30c9\u30ec\u30b9\uff09\u3092\u5272\u308a\u5f53\u3066\u308b<\/li>\n\n\n\n<li>\u9000\u5ba4\u3059\u308b\u3068\u3001\u90e8\u5c4b\u306f\u518d\u3073\u7a7a\u304d\u90e8\u5c4b\u3068\u3057\u3066\u4ed6\u306e\u4eba\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u308b<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u3088\u3046\u306b\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u3067IP\u30a2\u30c9\u30ec\u30b9\u3092\u52b9\u7387\u7684\u306b\u7ba1\u7406\u3059\u308b\u5f79\u5272\u3092\u62c5\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">DHCP\u30ea\u30ec\u30fc\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u3068\u306f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u901a\u5e38\u3001DHCP\u306e\u3084\u308a\u53d6\u308a\uff08Discover, Offer, Request, Ack\uff09\u306f\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u3067\u884c\u308f\u308c\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u30b5\u30fc\u30d0\u306f\u540c\u3058\u30b5\u30d6\u30cd\u30c3\u30c8\u306b\u5b58\u5728\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3057\u304b\u3057\u3001\u5b9f\u969b\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306f\u8907\u6570\u306e\u30b5\u30d6\u30cd\u30c3\u30c8\u3092\u30eb\u30fc\u30bf\u3084L3\u30b9\u30a4\u30c3\u30c1\u3067\u5206\u96e2\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u591a\u304f\u3001\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u306f\u3053\u308c\u3089\u306e\u6a5f\u5668\u3092\u8d85\u3048\u3089\u308c\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001\u30b5\u30d6\u30cd\u30c3\u30c8\u3054\u3068\u306bDHCP\u30b5\u30fc\u30d0\u3092\u7528\u610f\u3059\u308b\u3068\u30b3\u30b9\u30c8\u3084\u7ba1\u7406\u304c\u5927\u304d\u306a\u8ca0\u62c5\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u8ab2\u984c\u3092\u89e3\u6c7a\u3059\u308b\u306e\u304c <strong><span class=\"swl-marker mark_yellow\">DHCP\u30ea\u30ec\u30fc\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8<\/span><\/strong> \u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DHCP\u30ea\u30ec\u30fc\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306e\u4ed5\u7d44\u307f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">DHCP\u30ea\u30ec\u30fc\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u6a5f\u80fd\u3092\u6301\u3063\u305f\u30eb\u30fc\u30bf\u3084L3\u30b9\u30a4\u30c3\u30c1\u304c\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089\u306eDHCP\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u3092\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304cDHCP Discover\u3092\u9001\u4fe1\u3059\u308b<\/li>\n\n\n\n<li>\u30ea\u30ec\u30fc\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u304c\u305d\u306e\u30d1\u30b1\u30c3\u30c8\u3092\u30e6\u30cb\u30ad\u30e3\u30b9\u30c8\u306b\u5909\u63db\u3057\u3066DHCP\u30b5\u30fc\u30d0\u306b\u8ee2\u9001\u3059\u308b<\/li>\n\n\n\n<li>\u30b5\u30fc\u30d0\u304b\u3089\u306e\u8fd4\u4fe1\uff08Offer, Ack\u306a\u3069\uff09\u3082\u30ea\u30ec\u30fc\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u3092\u7d4c\u7531\u3057\u3066\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u5c4a\u3051\u3089\u308c\u308b<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u4ed5\u7d44\u307f\u306b\u3088\u308a\u3001DHCP\u30b5\u30fc\u30d0\u306f1\u53f0\u3067\u8907\u6570\u306e\u30b5\u30d6\u30cd\u30c3\u30c8\u306bIP\u30a2\u30c9\u30ec\u30b9\u3092\u5272\u308a\u5f53\u3066\u3089\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DHCP\u30ea\u30ec\u30fc\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306e\u5229\u70b9<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30b5\u30d6\u30cd\u30c3\u30c8\u3054\u3068\u306bDHCP\u30b5\u30fc\u30d0\u3092\u8a2d\u7f6e\u3059\u308b\u5fc5\u8981\u304c\u306a\u3044<\/li>\n\n\n\n<li>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5168\u4f53\u3067IP\u30a2\u30c9\u30ec\u30b9\u7ba1\u7406\u3092\u4e00\u5143\u5316\u3067\u304d\u308b<\/li>\n\n\n\n<li>\u30b3\u30b9\u30c8\u524a\u6e1b\u3068\u904b\u7528\u7ba1\u7406\u306e\u52b9\u7387\u5316\u304c\u53ef\u80fd<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u521d\u5fc3\u8005\u5411\u3051\u30a4\u30e1\u30fc\u30b8<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c\u753a\u306e\u4e2d\u5fc3\u306b\u3042\u308b\u5f79\u6240\uff08DHCP\u30b5\u30fc\u30d0\uff09\u300d\u306b\u76f4\u63a5\u884c\u3051\u306a\u3044\u4eba\uff08\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\uff09\u306e\u305f\u3081\u306b\u3001\u8fd1\u304f\u306e\u4ea4\u756a\uff08\u30ea\u30ec\u30fc\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\uff09\u304c\u66f8\u985e\u3092\u53d6\u308a\u6b21\u3044\u3067\u304f\u308c\u308b\u30a4\u30e1\u30fc\u30b8\u3067\u3059\u3002<br>\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u3069\u306e\u30b5\u30d6\u30cd\u30c3\u30c8\u306b\u3044\u3066\u3082\u3001\u30ea\u30ec\u30fc\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u3092\u901a\u3058\u3066\u6b63\u3057\u304fIP\u30a2\u30c9\u30ec\u30b9\u3092\u3082\u3089\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u25c6\u307e\u3068\u3081\u30b9\u30e9\u30a4\u30c9<\/h2>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden 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