{"id":476801,"date":"2023-08-09T07:36:15","date_gmt":"2023-08-09T07:36:15","guid":{"rendered":""},"modified":"2023-09-05T11:13:28","modified_gmt":"2023-09-05T11:13:28","slug":"dhcp","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/jp\/wiki\/dhcp\/","title":{"rendered":"DHCP"},"content":{"rendered":"<p>\u30c0\u30a4\u30ca\u30df\u30c3\u30af \u30db\u30b9\u30c8\u69cb\u6210\u30d7\u30ed\u30c8\u30b3\u30eb (DHCP) \u306f\u3001IP \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u4f7f\u7528\u3055\u308c\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002\u4e3b\u306a\u6a5f\u80fd\u306f\u3001IP \u30a2\u30c9\u30ec\u30b9\u3001\u30b5\u30d6\u30cd\u30c3\u30c8 \u30de\u30b9\u30af\u3001\u30c7\u30d5\u30a9\u30eb\u30c8 \u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3001\u304a\u3088\u3073\u305d\u306e\u4ed6\u306e IP \u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30c7\u30d0\u30a4\u30b9\u306b\u81ea\u52d5\u7684\u306b\u5272\u308a\u5f53\u3066\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n<h2>DHCP\u306e\u6b74\u53f2\u3068\u6700\u521d\u306e\u8a00\u53ca<\/h2>\n<p>DHCP \u306f\u30011993 \u5e74 10 \u6708\u306b\u6a19\u6e96\u5316\u3055\u308c\u305f\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30d7\u30ed\u30c8\u30b3\u30eb\u3068\u3057\u3066\u767b\u5834\u3057\u3001\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u6280\u8853\u7279\u5225\u8abf\u67fb\u59d4\u54e1\u4f1a (IETF) \u306b\u3088\u3063\u3066 RFC 1531 \u3067\u5b9a\u7fa9\u3055\u308c\u307e\u3057\u305f\u3002\u3053\u308c\u306f\u3001\u30d6\u30fc\u30c8\u30b9\u30c8\u30e9\u30c3\u30d7 \u30d7\u30ed\u30c8\u30b3\u30eb (BOOTP) \u306e\u62e1\u5f35\u3068\u3057\u3066\u8a2d\u8a08\u3055\u308c\u3001\u3088\u308a\u9ad8\u5ea6\u306a\u30a2\u30c9\u30ec\u30b9\u5272\u308a\u5f53\u3066\u6a5f\u80fd\u3092\u63d0\u4f9b\u3057\u307e\u3059\u30021990 \u5e74\u4ee3\u306b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u898f\u6a21\u3068\u8907\u96d1\u3055\u304c\u5897\u3059\u306b\u3064\u308c\u3066\u3001\u81ea\u52d5\u30a2\u30c9\u30ec\u30b9\u69cb\u6210\u30e1\u30ab\u30cb\u30ba\u30e0\u306e\u5fc5\u8981\u6027\u304c\u5f37\u304f\u8a8d\u8b58\u3055\u308c\u3001DHCP \u304c\u958b\u767a\u3055\u308c\u3001\u5e83\u304f\u63a1\u7528\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<h2>DHCP\u306b\u95a2\u3059\u308b\u8a73\u7d30\u60c5\u5831<\/h2>\n<p>DHCP \u306f\u30af\u30e9\u30a4\u30a2\u30f3\u30c8 \u30b5\u30fc\u30d0\u30fc \u30e2\u30c7\u30eb\u306b\u57fa\u3065\u3044\u3066\u52d5\u4f5c\u3057\u307e\u3059\u3002\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u3084\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u306a\u3069\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8 \u30c7\u30d0\u30a4\u30b9\u304c\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3059\u308b\u3068\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e DHCP \u30b5\u30fc\u30d0\u30fc\u3092\u691c\u7d22\u3059\u308b\u305f\u3081\u306b DHCP \u691c\u51fa\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u9001\u4fe1\u3055\u308c\u307e\u3059\u3002DHCP \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u4f7f\u7528\u53ef\u80fd\u306a IP \u30a2\u30c9\u30ec\u30b9\u3084\u305d\u306e\u4ed6\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u69cb\u6210\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u542b\u3080 DHCP \u30aa\u30d5\u30a1\u30fc\u3067\u5fdc\u7b54\u3057\u307e\u3059\u3002<\/p>\n<p>\u305d\u306e\u5f8c\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f DHCP \u8981\u6c42\u3092\u9001\u4fe1\u3057\u3066\u3001\u63d0\u4f9b\u3055\u308c\u305f IP \u30a2\u30c9\u30ec\u30b9\u306e\u4f7f\u7528\u3092\u6b63\u5f0f\u306b\u8981\u6c42\u3067\u304d\u307e\u3059\u3002\u30b5\u30fc\u30d0\u30fc\u304c\u540c\u610f\u3059\u308b\u3068\u3001DHCP \u78ba\u8a8d\u5fdc\u7b54\u3092\u9001\u4fe1\u3057\u3066\u30d7\u30ed\u30bb\u30b9\u304c\u5b8c\u4e86\u3057\u3001IP \u30a2\u30c9\u30ec\u30b9\u304c\u6b63\u5f0f\u306b\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u5272\u308a\u5f53\u3066\u3089\u308c\u307e\u3059\u3002<\/p>\n<p>DHCP \u306e\u4e3b\u306a\u5229\u70b9\u306f\u3001IP \u30a2\u30c9\u30ec\u30b9\u306e\u5272\u308a\u5f53\u3066\u3092\u81ea\u52d5\u7684\u306b\u7ba1\u7406\u3067\u304d\u308b\u3053\u3068\u3067\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u7ba1\u7406\u4f5c\u696d\u8ca0\u8377\u304c\u5927\u5e45\u306b\u8efd\u6e1b\u3055\u308c\u3001IP \u30a2\u30c9\u30ec\u30b9\u3092\u624b\u52d5\u3067\u5272\u308a\u5f53\u3066\u308b\u5834\u5408\u306b\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u30a8\u30e9\u30fc\u304c\u6700\u5c0f\u9650\u306b\u6291\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n<h2>DHCP \u306e\u5185\u90e8\u69cb\u9020\u3068\u305d\u306e\u4ed5\u7d44\u307f<\/h2>\n<p>DHCP \u306f\u3001DORA (\u691c\u51fa\u3001\u63d0\u4f9b\u3001\u8981\u6c42\u3001\u78ba\u8a8d) \u3068\u547c\u3070\u308c\u308b 4 \u6bb5\u968e\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u4f7f\u7528\u3057\u3066 IP \u30a2\u30c9\u30ec\u30b9\u3092\u5272\u308a\u5f53\u3066\u307e\u3059\u3002<\/p>\n<ol>\n<li><strong>\u767a\u898b\u3059\u308b<\/strong>: \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u3001DHCP \u30b5\u30fc\u30d0\u30fc\u3092\u8b58\u5225\u3059\u308b\u305f\u3081\u306b\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u3067 DHCP Discover \u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u30d6\u30ed\u30fc\u30c9\u30ad\u30e3\u30b9\u30c8\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30aa\u30d5\u30a1\u30fc<\/strong>DHCP \u30b5\u30fc\u30d0\u30fc\u306f DHCP Offer \u30e1\u30c3\u30bb\u30fc\u30b8\u3067\u5fdc\u7b54\u3057\u3001IP \u30a2\u30c9\u30ec\u30b9\u3084\u305d\u306e\u4ed6\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u69cb\u6210\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u63d0\u6848\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30ea\u30af\u30a8\u30b9\u30c8<\/strong>: \u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f DHCP \u8981\u6c42\u30e1\u30c3\u30bb\u30fc\u30b8\u3067\u5fdc\u7b54\u3057\u3001\u63d0\u4f9b\u3055\u308c\u305f\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3092\u6b63\u5f0f\u306b\u8981\u6c42\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u8a8d\u3081\u308b<\/strong>: DHCP \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e IP \u30a2\u30c9\u30ec\u30b9\u306e\u5272\u308a\u5f53\u3066\u3092\u78ba\u8a8d\u3059\u308b DHCP \u78ba\u8a8d\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u9001\u4fe1\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n<h2>DHCP\u306e\u4e3b\u306a\u6a5f\u80fd<\/h2>\n<ol>\n<li><strong>IP\u30a2\u30c9\u30ec\u30b9\u7ba1\u7406<\/strong>DHCP \u306f\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e IP \u30a2\u30c9\u30ec\u30b9\u306e\u5272\u308a\u5f53\u3066\u3068\u8ffd\u8de1\u306e\u30d7\u30ed\u30bb\u30b9\u3092\u81ea\u52d5\u5316\u3057\u3001\u624b\u52d5\u3067\u306e\u69cb\u6210\u306e\u5fc5\u8981\u6027\u3092\u6392\u9664\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30a2\u30c9\u30ec\u30b9\u30d7\u30fc\u30eb<\/strong>DHCP \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u4f7f\u7528\u53ef\u80fd\u306a IP \u30a2\u30c9\u30ec\u30b9\u306e\u30d7\u30fc\u30eb\u3092\u7dad\u6301\u3057\u3001\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u5272\u308a\u5f53\u3066\u307e\u3059\u3002<\/li>\n<li><strong>\u30ea\u30fc\u30b9\u671f\u9593<\/strong>\u5404 IP \u30a2\u30c9\u30ec\u30b9\u306f\u7279\u5b9a\u306e\u671f\u9593\u30ea\u30fc\u30b9\u3055\u308c\u3001\u671f\u9593\u304c\u7d4c\u904e\u3059\u308b\u3068\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u66f4\u65b0\u307e\u305f\u306f\u65b0\u3057\u3044\u30a2\u30c9\u30ec\u30b9\u3092\u8981\u6c42\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u30ea\u30ec\u30fc\u30a8\u30fc\u30b8\u30a7\u30f3\u30c8<\/strong>DHCP \u30ea\u30ec\u30fc \u30a8\u30fc\u30b8\u30a7\u30f3\u30c8\u306f\u3001\u7570\u306a\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30bb\u30b0\u30e1\u30f3\u30c8\u4e0a\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u30b5\u30fc\u30d0\u30fc\u9593\u306e DHCP \u901a\u4fe1\u3092\u53ef\u80fd\u306b\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30aa\u30d7\u30b7\u30e7\u30f3<\/strong>DHCP \u306b\u306f\u3001\u30c7\u30d5\u30a9\u30eb\u30c8 \u30b2\u30fc\u30c8\u30a6\u30a7\u30a4\u3001DNS \u30b5\u30fc\u30d0\u30fc\u3001NTP \u30b5\u30fc\u30d0\u30fc\u306a\u3069\u306e\u8ffd\u52a0\u306e\u69cb\u6210\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ol>\n<h2>DHCP\u306e\u7a2e\u985e<\/h2>\n<p>DHCP \u30a2\u30c9\u30ec\u30b9\u5272\u308a\u5f53\u3066\u65b9\u6cd5\u306b\u306f 3 \u7a2e\u985e\u3042\u308a\u307e\u3059\u3002<\/p>\n<ol>\n<li><strong>\u52d5\u7684\u5272\u308a\u5f53\u3066<\/strong>: DHCP \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u4e00\u5b9a\u671f\u9593 (\u30ea\u30fc\u30b9) \u306b\u308f\u305f\u3063\u3066\u30d7\u30fc\u30eb\u304b\u3089 IP \u30a2\u30c9\u30ec\u30b9\u3092\u5272\u308a\u5f53\u3066\u307e\u3059\u3002\u3053\u306e\u65b9\u6cd5\u306f\u3001\u30c7\u30d0\u30a4\u30b9\u304c\u983b\u7e41\u306b\u63a5\u7d9a\u304a\u3088\u3073\u5207\u65ad\u3055\u308c\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u6700\u3082\u52b9\u7387\u7684\u3067\u3059\u3002<\/li>\n<li><strong>\u81ea\u52d5\u5272\u308a\u5f53\u3066<\/strong>: DHCP \u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30d7\u30fc\u30eb\u304b\u3089\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b IP \u30a2\u30c9\u30ec\u30b9\u3092\u6c38\u7d9a\u7684\u306b\u5272\u308a\u5f53\u3066\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u4e00\u8cab\u3057\u305f\u30a2\u30c9\u30ec\u30b9\u6307\u5b9a\u3092\u5fc5\u8981\u3068\u3059\u308b\u30c7\u30d0\u30a4\u30b9\u304c\u3042\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u5f79\u7acb\u3061\u307e\u3059\u3002<\/li>\n<li><strong>\u624b\u52d5\u5272\u308a\u5f53\u3066<\/strong>: \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7ba1\u7406\u8005\u304c IP \u30a2\u30c9\u30ec\u30b9\u3092\u5272\u308a\u5f53\u3066\u3001DHCP \u30b5\u30fc\u30d0\u30fc\u304c\u305d\u308c\u3092\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u914d\u4fe1\u3057\u307e\u3059\u3002\u3053\u306e\u65b9\u6cd5\u306f\u3001\u7279\u5b9a\u306e\u30c7\u30d0\u30a4\u30b9\u304c\u540c\u3058 IP \u30a2\u30c9\u30ec\u30b9\u3092\u4fdd\u6301\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/li>\n<\/ol>\n<h2>DHCP \u306e\u4f7f\u7528\u65b9\u6cd5\u3068\u95a2\u9023\u3059\u308b\u554f\u984c\u304a\u3088\u3073\u89e3\u6c7a\u7b56<\/h2>\n<p>DHCP \u306f\u3001\u30eb\u30fc\u30bf\u30fc\u304c 1 \u53f0\u3057\u304b\u306a\u3044\u5c0f\u898f\u6a21\u306a\u30db\u30fc\u30e0 \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089\u3001\u30eb\u30fc\u30bf\u30fc\u3084\u30b9\u30a4\u30c3\u30c1\u304c\u8907\u6570\u3042\u308b\u5927\u898f\u6a21\u306a\u30a8\u30f3\u30bf\u30fc\u30d7\u30e9\u30a4\u30ba \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u307e\u3067\u3001\u73fe\u4ee3\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306f\u5e83\u304f\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u4ed6\u306e\u30c6\u30af\u30ce\u30ed\u30b8\u3068\u540c\u69d8\u306b\u3001\u30a2\u30c9\u30ec\u30b9\u306e\u7af6\u5408\u3001\u30a2\u30c9\u30ec\u30b9 \u30d7\u30fc\u30eb\u306e\u67af\u6e07\u3001DHCP \u30b5\u30fc\u30d0\u30fc\u306e\u8a2d\u5b9a\u30df\u30b9\u306a\u3069\u3001\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u307b\u3068\u3093\u3069\u306e\u554f\u984c\u306f\u3001DHCP \u30b5\u30fc\u30d0\u30fc\u3092\u9069\u5207\u306b\u69cb\u6210\u3057\u3001\u5341\u5206\u306a\u5927\u304d\u3055\u306e\u30a2\u30c9\u30ec\u30b9 \u30d7\u30fc\u30eb\u3092\u78ba\u4fdd\u3057\u3001\u9069\u5207\u306a\u30ea\u30fc\u30b9\u671f\u9593\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3067\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002\u76e3\u8996\u30c4\u30fc\u30eb\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001DHCP \u306e\u52d5\u4f5c\u3092\u53ef\u8996\u5316\u3057\u3001\u6df1\u523b\u306a\u554f\u984c\u306b\u306a\u308b\u524d\u306b\u6f5c\u5728\u7684\u306a\u554f\u984c\u3092\u7ba1\u7406\u8005\u306b\u8b66\u544a\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>\u4e3b\u306a\u7279\u5fb4\u3068\u985e\u4f3c\u7528\u8a9e\u3068\u306e\u6bd4\u8f03<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u7279\u5fb4<\/th>\n<th>DHCP<\/th>\n<th>\u56fa\u5b9aIP<\/th>\n<th>\u30a2\u30d4\u30d1<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>IP \u5272\u308a\u5f53\u3066<\/td>\n<td>\u81ea\u52d5\u5316<\/td>\n<td>\u30de\u30cb\u30e5\u30a2\u30eb<\/td>\n<td>\u81ea\u52d5\uff08\u305f\u3060\u3057\u3001DHCP \u304c\u5229\u7528\u3067\u304d\u306a\u3044\u5834\u5408\u306e\u307f\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u30a2\u30c9\u30ec\u30b9\u30d7\u30fc\u30eb<\/td>\n<td>\u306f\u3044<\/td>\n<td>\u3044\u3044\u3048<\/td>\n<td>\u5b9a\u7fa9\u6e08\u307f\u7bc4\u56f2<\/td>\n<\/tr>\n<tr>\n<td>\u69cb\u6210\u306e\u52b4\u529b<\/td>\n<td>\u4f4e\u3044<\/td>\n<td>\u9ad8\u3044<\/td>\n<td>\u306a\u3057<\/td>\n<\/tr>\n<tr>\n<td>\u306b\u9069\u3057<\/td>\n<td>\u3042\u3089\u3086\u308b\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u30b5\u30a4\u30ba<\/td>\n<td>\u5c0f\u898f\u6a21\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3001\u307e\u305f\u306f\u5927\u898f\u6a21\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u5185\u306e\u7279\u5b9a\u306e\u30c7\u30d0\u30a4\u30b9<\/td>\n<td>\u5c0f\u898f\u6a21\u306a\u5358\u4e00\u30b5\u30d6\u30cd\u30c3\u30c8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u307e\u305f\u306f\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3068\u3057\u3066<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>DHCP\u306b\u95a2\u3059\u308b\u4eca\u5f8c\u306e\u5c55\u671b\u3068\u6280\u8853<\/h2>\n<p>\u5c06\u6765\u3092\u898b\u636e\u3048\u308b\u3068\u3001IPv4 \u304b\u3089 IPv6 \u3078\u306e\u79fb\u884c\u304c\u9032\u884c\u4e2d\u3067\u3001DHCPv6 \u3068\u547c\u3070\u308c\u308b\u985e\u4f3c\u306e\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u767b\u5834\u3057\u307e\u3059\u3002\u30b3\u30a2\u30b3\u30f3\u30bb\u30d7\u30c8\u306f\u540c\u3058 (IP \u30a2\u30c9\u30ec\u30b9\u306e\u81ea\u52d5\u5272\u308a\u5f53\u3066) \u3067\u3059\u304c\u3001DHCPv6 \u306b\u306f\u3001IPv6 \u306e\u306f\u308b\u304b\u306b\u5927\u304d\u306a\u30a2\u30c9\u30ec\u30b9\u7a7a\u9593\u3068\u8ffd\u52a0\u6a5f\u80fd\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3055\u308c\u305f\u62e1\u5f35\u6a5f\u80fd\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u5b9a\u7fa9\u30cd\u30c3\u30c8\u30ef\u30fc\u30af (SDN) \u3084\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6a5f\u80fd\u4eee\u60f3\u5316 (NFV) \u306a\u3069\u306e\u65b0\u3057\u3044\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u306f\u3001DHCP \u306e\u9032\u5316\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u3001\u3055\u3089\u306b\u52d5\u7684\u3067\u67d4\u8edf\u306a IP \u30a2\u30c9\u30ec\u30b9\u7ba1\u7406\u30b7\u30b9\u30c6\u30e0\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h2>DHCP \u3068\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc<\/h2>\n<p>DHCP \u30b5\u30fc\u30d0\u30fc\u3068\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u9023\u643a\u3057\u3066\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u7ba1\u7406\u3067\u304d\u307e\u3059\u3002DHCP \u30b5\u30fc\u30d0\u30fc\u306f\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b IP \u30a2\u30c9\u30ec\u30b9\u3092\u5272\u308a\u5f53\u3066\u3066\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u3067\u306e\u901a\u4fe1\u3092\u53ef\u80fd\u306b\u3057\u3001\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u305d\u308c\u3089\u306e\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u3068\u5916\u90e8\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u9593\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u8a98\u5c0e\u3057\u307e\u3059\u3002\u3053\u306e\u8a2d\u5b9a\u306b\u3088\u308a\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306b\u5bfe\u3059\u308b\u4e00\u5b9a\u30ec\u30d9\u30eb\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3068\u5236\u5fa1\u304c\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u306f\u983b\u7e41\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b Web \u30b5\u30a4\u30c8\u306e\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3057\u3066\u3001\u5e2f\u57df\u5e45\u306e\u4f7f\u7528\u3092\u524a\u6e1b\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u3092\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3057\u3066\u30d6\u30ed\u30c3\u30af\u3057\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u306e\u30ec\u30d9\u30eb\u3092\u9ad8\u3081\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002DHCP \u306f\u3001\u3053\u308c\u3089\u306e\u30d7\u30ed\u30ad\u30b7 \u30b5\u30fc\u30d0\u30fc\u304c\u52b9\u679c\u7684\u306b\u6a5f\u80fd\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u3001\u6b63\u78ba\u3067\u4e00\u8cab\u6027\u306e\u3042\u308b IP \u30a2\u30c9\u30ec\u30b9\u3092\u78ba\u5b9f\u306b\u6301\u3064\u305f\u3081\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n<h2>\u95a2\u9023\u30ea\u30f3\u30af<\/h2>\n<p>DHCP \u306e\u8a73\u7d30\u306b\u3064\u3044\u3066\u306f\u3001\u6b21\u306e\u30ea\u30bd\u30fc\u30b9\u3092\u53c2\u7167\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<ol>\n<li><a href=\"https:\/\/tools.ietf.org\/html\/rfc2131\" target=\"_new\" rel=\"noopener nofollow\">RFC 2131 \u2013 \u52d5\u7684\u30db\u30b9\u30c8\u69cb\u6210\u30d7\u30ed\u30c8\u30b3\u30eb<\/a><\/li>\n<li><a href=\"https:\/\/docs.microsoft.com\/en-us\/windows-server\/networking\/technologies\/dhcp\/dhcp-top\" target=\"_new\" rel=\"noopener nofollow\">Microsoft DHCP \u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/a><\/li>\n<li><a href=\"https:\/\/www.cisco.com\/c\/en\/us\/td\/docs\/ios-xml\/ios\/ipaddr_dhcp\/configuration\/xe-3s\/dhcp-xe-3s-book.html\" target=\"_new\" rel=\"noopener nofollow\">Cisco DHCP \u8a2d\u5b9a\u30ac\u30a4\u30c9<\/a><\/li>\n<li><a href=\"https:\/\/www.netmanias.com\/en\/post\/techdocs\/6002\/dhcp-network-protocol\/understanding-the-basic-operations-of-dhcp\" target=\"_new\" rel=\"noopener nofollow\">DHCP\u3092\u7406\u89e3\u3059\u308b<\/a><\/li>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Dynamic_Host_Configuration_Protocol\" target=\"_new\" rel=\"noopener nofollow\">DHCP (\u30a6\u30a3\u30ad\u30da\u30c7\u30a3\u30a2)<\/a><\/li>\n<\/ol>","protected":false},"featured_media":476802,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476801","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Dynamic Host Configuration Protocol (DHCP)<\/mark>","faq_items":[{"question":"What is DHCP?","answer":"<p>Dynamic Host Configuration Protocol, commonly known as DHCP, is a network protocol that automates the assignment of IP addresses, subnet masks, default gateways, and other IP parameters to network devices.<\/p>"},{"question":"When was DHCP first introduced?","answer":"<p>DHCP was standardized as a network protocol in October 1993. It was defined by the Internet Engineering Task Force (IETF) in RFC 1531.<\/p>"},{"question":"How does DHCP assign IP addresses?","answer":"<p>DHCP uses a four-step process known as DORA (Discover, Offer, Request, Acknowledge) to assign IP addresses. This process involves the client device broadcasting a request for an IP address, the DHCP server offering an address, the client requesting to use the offered address, and the server acknowledging the assignment.<\/p>"},{"question":"What are the key features of DHCP?","answer":"<p>Key features of DHCP include automated IP address management, the use of an address pool from which addresses are assigned, specified lease durations for IP addresses, the use of relay agents, and additional configuration options such as the default gateway, DNS servers, and NTP servers.<\/p>"},{"question":"What are the types of DHCP allocation methods?","answer":"<p>There are three types of DHCP address allocation methods: dynamic allocation, where the server assigns an IP address from a pool for a limited period; automatic allocation, where the server permanently assigns an IP address from a pool; and manual allocation, where a specific IP address is assigned by an administrator and delivered to a client by the server.<\/p>"},{"question":"What problems can occur with DHCP and how can they be solved?","answer":"<p>Common DHCP problems include address conflicts, exhausted address pools, and misconfigured servers. These can generally be solved by proper server configuration, ensuring a large enough address pool, and setting appropriate lease durations.<\/p>"},{"question":"How does DHCP relate to proxy servers?","answer":"<p>A DHCP server assigns IP addresses to clients, enabling them to communicate on the network, while a proxy server directs traffic between those clients and external networks. This combination can provide a level of security and control over network traffic.<\/p>"},{"question":"What is the future of DHCP with technologies like IPv6 and software-defined networking?","answer":"<p>The ongoing transition from IPv4 to IPv6 brings with it DHCPv6, which includes enhancements to support the larger address space of IPv6. Emerging technologies such as software-defined networking and network functions virtualization may influence how DHCP evolves, potentially leading to more dynamic and flexible IP address management systems.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/476801","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/wiki\/476801\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media\/476802"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/jp\/wp-json\/wp\/v2\/media?parent=476801"}],"curies":[{"name":"\u3046\u30fc\u3093","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}