{"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\/cn\/wiki\/dhcp\/","title":{"rendered":"\u52a8\u6001\u4e3b\u673a\u914d\u7f6e\u534f\u8bae"},"content":{"rendered":"

\u52a8\u6001\u4e3b\u673a\u914d\u7f6e\u534f\u8bae\uff0c\u901a\u5e38\u79f0\u4e3a DHCP\uff0c\u662f IP \u7f51\u7edc\u4e2d\u4f7f\u7528\u7684\u7f51\u7edc\u534f\u8bae\u3002\u5176\u4e3b\u8981\u529f\u80fd\u662f\u81ea\u52a8\u4e3a\u7f51\u7edc\u8bbe\u5907\u5206\u914d IP \u5730\u5740\u3001\u5b50\u7f51\u63a9\u7801\u3001\u9ed8\u8ba4\u7f51\u5173\u548c\u5176\u4ed6 IP \u53c2\u6570\u3002<\/p>\n

DHCP \u7684\u5386\u53f2\u53ca\u5176\u9996\u6b21\u63d0\u53ca<\/h2>\n

DHCP \u4e8e 1993 \u5e74 10 \u6708\u4f5c\u4e3a\u4e00\u79cd\u6807\u51c6\u5316\u7f51\u7edc\u534f\u8bae\u51fa\u73b0\uff0c\u7531\u4e92\u8054\u7f51\u5de5\u7a0b\u4efb\u52a1\u7ec4 (IETF) \u5728 RFC 1531 \u4e2d\u5b9a\u4e49\u3002\u5b83\u88ab\u8bbe\u8ba1\u4e3a\u5f15\u5bfc\u534f\u8bae (BOOTP) \u7684\u6269\u5c55\uff0c\u63d0\u4f9b\u66f4\u590d\u6742\u7684\u5730\u5740\u5206\u914d\u529f\u80fd\u3002\u968f\u7740 20 \u4e16\u7eaa 90 \u5e74\u4ee3\u7f51\u7edc\u89c4\u6a21\u548c\u590d\u6742\u6027\u7684\u589e\u957f\uff0c\u4eba\u4eec\u5f3a\u70c8\u5730\u611f\u53d7\u5230\u4e86\u5bf9\u81ea\u52a8\u5730\u5740\u914d\u7f6e\u673a\u5236\u7684\u9700\u6c42\uff0c\u4ece\u800c\u5bfc\u81f4\u4e86 DHCP \u7684\u53d1\u5c55\u548c\u5e7f\u6cdb\u91c7\u7528\u3002<\/p>\n

\u6709\u5173 DHCP \u7684\u8be6\u7ec6\u4fe1\u606f<\/h2>\n

DHCP \u57fa\u4e8e\u5ba2\u6237\u7aef-\u670d\u52a1\u5668\u6a21\u578b\u8fd0\u884c\u3002\u5f53\u5ba2\u6237\u7aef\u8bbe\u5907\uff08\u4f8b\u5982\u8ba1\u7b97\u673a\u6216\u667a\u80fd\u624b\u673a\uff09\u8fde\u63a5\u5230\u7f51\u7edc\u65f6\uff0c\u5b83\u4f1a\u53d1\u9001 DHCP \u53d1\u73b0\u6d88\u606f\u4ee5\u67e5\u627e\u7f51\u7edc\u4e0a\u7684 DHCP \u670d\u52a1\u5668\u3002 DHCP \u670d\u52a1\u5668\u4ee5 DHCP Offer \u8fdb\u884c\u54cd\u5e94\uff0c\u5176\u4e2d\u5305\u62ec\u53ef\u7528\u7684 IP \u5730\u5740\u548c\u5176\u4ed6\u7f51\u7edc\u914d\u7f6e\u53c2\u6570\u3002<\/p>\n

\u7136\u540e\uff0c\u5ba2\u6237\u7aef\u53ef\u4ee5\u53d1\u9001 DHCP \u8bf7\u6c42\uff0c\u6b63\u5f0f\u8bf7\u6c42\u4f7f\u7528\u6240\u63d0\u4f9b\u7684 IP \u5730\u5740\u3002\u5982\u679c\u670d\u52a1\u5668\u540c\u610f\uff0c\u5b83\u4f1a\u901a\u8fc7\u53d1\u9001 DHCP \u786e\u8ba4\u6765\u5b8c\u6210\u8be5\u8fc7\u7a0b\uff0c\u6b63\u5f0f\u5c06 IP \u5730\u5740\u5206\u914d\u7ed9\u5ba2\u6237\u7aef\u3002<\/p>\n

DHCP \u7684\u4e3b\u8981\u4f18\u70b9\u662f\u80fd\u591f\u81ea\u52a8\u7ba1\u7406 IP \u5730\u5740\u5206\u914d\uff0c\u4ece\u800c\u663e\u7740\u51cf\u5c11\u7ba1\u7406\u5de5\u4f5c\u91cf\u5e76\u6700\u5927\u9650\u5ea6\u5730\u51cf\u5c11\u624b\u52a8\u5206\u914d IP \u5730\u5740\u65f6\u53ef\u80fd\u53d1\u751f\u7684\u9519\u8bef\u3002<\/p>\n

DHCP \u7684\u5185\u90e8\u7ed3\u6784\u53ca\u5176\u5de5\u4f5c\u539f\u7406<\/h2>\n

DHCP \u4f7f\u7528\u79f0\u4e3a DORA\uff08\u53d1\u73b0\u3001\u63d0\u4f9b\u3001\u8bf7\u6c42\u3001\u786e\u8ba4\uff09\u7684\u56db\u6b65\u8fc7\u7a0b\u6765\u5206\u914d IP \u5730\u5740\uff1a<\/p>\n

    \n
  1. \u53d1\u73b0<\/strong>\uff1a\u5ba2\u6237\u7aef\u5728\u7f51\u7edc\u4e0a\u5e7f\u64ad DHCP Discover \u6d88\u606f\u6765\u8bc6\u522b DHCP \u670d\u52a1\u5668\u3002<\/li>\n
  2. \u63d0\u4f9b<\/strong>\uff1aDHCP \u670d\u52a1\u5668\u54cd\u5e94 DHCP Offer \u6d88\u606f\uff0c\u5efa\u8bae IP \u5730\u5740\u548c\u5176\u4ed6\u7f51\u7edc\u914d\u7f6e\u53c2\u6570\u3002<\/li>\n
  3. \u8981\u6c42<\/strong>\uff1a\u5ba2\u6237\u7aef\u54cd\u5e94 DHCP \u8bf7\u6c42\u6d88\u606f\uff0c\u6b63\u5f0f\u8bf7\u6c42\u4f7f\u7528\u63d0\u4f9b\u7684\u53c2\u6570\u3002<\/li>\n
  4. \u627f\u8ba4<\/strong>\uff1aDHCP \u670d\u52a1\u5668\u53d1\u9001 DHCP \u786e\u8ba4\u6d88\u606f\uff0c\u786e\u8ba4\u5ba2\u6237\u7aef\u7684 IP \u5730\u5740\u5206\u914d\u3002<\/li>\n<\/ol>\n

    DHCP \u7684\u4e3b\u8981\u7279\u6027<\/h2>\n
      \n
    1. IP\u5730\u5740\u7ba1\u7406<\/strong>\uff1aDHCP \u81ea\u52a8\u6267\u884c\u7f51\u7edc\u4e0a\u5206\u914d\u548c\u8ddf\u8e2a IP \u5730\u5740\u7684\u8fc7\u7a0b\uff0c\u65e0\u9700\u624b\u52a8\u914d\u7f6e\u3002<\/li>\n
    2. \u5730\u5740\u6c60<\/strong>\uff1aDHCP \u670d\u52a1\u5668\u7ef4\u62a4\u53ef\u7528 IP \u5730\u5740\u6c60\uff0c\u5e76\u6839\u636e\u9700\u8981\u5c06\u5b83\u4eec\u5206\u914d\u7ed9\u5ba2\u6237\u7aef\u3002<\/li>\n
    3. \u79df\u8d41\u671f\u9650<\/strong>\uff1a\u6bcf\u4e2a IP \u5730\u5740\u90fd\u4f1a\u79df\u7528\u4e00\u6bb5\u7279\u5b9a\u671f\u9650\uff0c\u4e4b\u540e\u5ba2\u6237\u7aef\u5fc5\u987b\u8bf7\u6c42\u7eed\u8ba2\u6216\u65b0\u5730\u5740\u3002<\/li>\n
    4. \u4e2d\u7ee7\u4ee3\u7406<\/strong>\uff1aDHCP \u4e2d\u7ee7\u4ee3\u7406\u5b9e\u73b0\u4e0d\u540c\u7f51\u6bb5\u7684\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u4e4b\u95f4\u7684 DHCP \u901a\u4fe1\u3002<\/li>\n
    5. \u9009\u9879<\/strong>\uff1aDHCP \u5305\u62ec\u5176\u4ed6\u914d\u7f6e\u53c2\u6570\u7684\u9009\u9879\uff0c\u4f8b\u5982\u9ed8\u8ba4\u7f51\u5173\u3001DNS \u670d\u52a1\u5668\u548c NTP \u670d\u52a1\u5668\u3002<\/li>\n<\/ol>\n

      DHCP \u7684\u7c7b\u578b<\/h2>\n

      DHCP\u5730\u5740\u5206\u914d\u65b9\u5f0f\u6709\u4ee5\u4e0b\u4e09\u79cd\uff1a<\/p>\n

        \n
      1. \u52a8\u6001\u5206\u914d<\/strong>\uff1aDHCP \u670d\u52a1\u5668\u4ece\u6c60\u4e2d\u5206\u914d\u4e00\u4e2a\u6709\u9650\u671f\u9650\u7684 IP \u5730\u5740\uff08\u79df\u7528\uff09\u3002\u5bf9\u4e8e\u8bbe\u5907\u9891\u7e41\u8fde\u63a5\u548c\u65ad\u5f00\u8fde\u63a5\u7684\u7f51\u7edc\uff0c\u6b64\u65b9\u6cd5\u6700\u4e3a\u6709\u6548\u3002<\/li>\n
      2. \u81ea\u52a8\u5206\u914d<\/strong>\uff1aDHCP \u670d\u52a1\u5668\u5c06\u6c60\u4e2d\u7684 IP \u5730\u5740\u6c38\u4e45\u5206\u914d\u7ed9\u5ba2\u6237\u7aef\u3002\u8fd9\u5bf9\u4e8e\u5177\u6709\u9700\u8981\u4e00\u81f4\u5bfb\u5740\u7684\u8bbe\u5907\u7684\u7f51\u7edc\u975e\u5e38\u6709\u7528\u3002<\/li>\n
      3. \u624b\u52a8\u5206\u914d<\/strong>\uff1a\u7f51\u7edc\u7ba1\u7406\u5458\u5206\u914dIP\u5730\u5740\uff0cDHCP\u670d\u52a1\u5668\u4e0b\u53d1\u7ed9\u5ba2\u6237\u7aef\u3002\u5f53\u7279\u5b9a\u8bbe\u5907\u9700\u8981\u4fdd\u7559\u76f8\u540c\u7684IP\u5730\u5740\u65f6\u4f7f\u7528\u6b64\u65b9\u6cd5\u3002<\/li>\n<\/ol>\n

        \u4f7f\u7528 DHCP \u7684\u65b9\u6cd5\u53ca\u76f8\u5173\u95ee\u9898\u548c\u89e3\u51b3\u65b9\u6848<\/h2>\n

        DHCP \u5728\u73b0\u4ee3\u7f51\u7edc\u4e2d\u65e0\u5904\u4e0d\u5728 - \u4ece\u5177\u6709\u5355\u4e2a\u8def\u7531\u5668\u7684\u5c0f\u578b\u5bb6\u5ead\u7f51\u7edc\u5230\u5177\u6709\u591a\u4e2a\u8def\u7531\u5668\u548c\u4ea4\u6362\u673a\u7684\u5927\u578b\u4f01\u4e1a\u7f51\u7edc\u3002\u7136\u800c\uff0c\u4e0e\u4efb\u4f55\u6280\u672f\u4e00\u6837\uff0c\u5b83\u4e5f\u53ef\u80fd\u4f1a\u5e26\u6765\u95ee\u9898\uff0c\u901a\u5e38\u4e0e\u5730\u5740\u51b2\u7a81\u3001\u5730\u5740\u6c60\u8017\u5c3d\u6216 DHCP \u670d\u52a1\u5668\u914d\u7f6e\u9519\u8bef\u76f8\u5173\u3002<\/p>\n

        \u5927\u591a\u6570\u95ee\u9898\u53ef\u4ee5\u901a\u8fc7\u6b63\u786e\u914d\u7f6e DHCP \u670d\u52a1\u5668\u3001\u786e\u4fdd\u8db3\u591f\u5927\u7684\u5730\u5740\u6c60\u5e76\u8bbe\u7f6e\u9002\u5f53\u7684\u79df\u7528\u671f\u9650\u6765\u89e3\u51b3\u3002\u76d1\u63a7\u5de5\u5177\u53ef\u4ee5\u63d0\u4f9b DHCP \u64cd\u4f5c\u7684\u53ef\u89c1\u6027\uff0c\u5e76\u5728\u6f5c\u5728\u95ee\u9898\u53d8\u5f97\u4e25\u91cd\u4e4b\u524d\u5411\u7ba1\u7406\u5458\u53d1\u51fa\u8b66\u62a5\u3002<\/p>\n

        \u4e3b\u8981\u7279\u70b9\u53ca\u540c\u7c7b\u4ea7\u54c1\u6bd4\u8f83<\/h2>\n\n\n\n\n\n\n\n\n
        \u7279\u5f81<\/th>\n\u52a8\u6001\u4e3b\u673a\u914d\u7f6e\u534f\u8bae<\/th>\n\u9759\u6001IP<\/th>\n\u4e9a\u592a\u88d4\u7f8e\u56fd\u4eba\u4fdd\u62a4\u534f\u4f1a<\/th>\n<\/tr>\n<\/thead>\n
        IP\u5206\u914d<\/td>\n\u81ea\u52a8\u5316<\/td>\n\u624b\u52a8\u7684<\/td>\n\u81ea\u52a8\uff0c\u4f46\u4ec5\u5f53 DHCP \u4e0d\u53ef\u7528\u65f6<\/td>\n<\/tr>\n
        \u5730\u5740\u6c60<\/td>\n\u662f\u7684<\/td>\n\u4e0d<\/td>\n\u9884\u5b9a\u4e49\u8303\u56f4<\/td>\n<\/tr>\n
        \u914d\u7f6e\u5de5\u4f5c\u91cf<\/td>\n\u4f4e\u7684<\/td>\n\u9ad8\u7684<\/td>\n\u6ca1\u6709\u4efb\u4f55<\/td>\n<\/tr>\n
        \u9002\u5408\u4e8e<\/td>\n\u4efb\u4f55\u7f51\u7edc\u89c4\u6a21<\/td>\n\u5c0f\u578b\u7f51\u7edc\u6216\u5927\u578b\u7f51\u7edc\u4e2d\u7684\u7279\u5b9a\u8bbe\u5907<\/td>\n\u5c0f\u578b\u5355\u5b50\u7f51\u7f51\u7edc\u6216\u4f5c\u4e3a\u5907\u7528\u7f51\u7edc<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

        \u4e0e DHCP \u76f8\u5173\u7684\u672a\u6765\u524d\u666f\u548c\u6280\u672f<\/h2>\n

        \u5c55\u671b\u672a\u6765\uff0c\u4ece IPv4 \u5230 IPv6 \u7684\u6301\u7eed\u8fc7\u6e21\u5e26\u6765\u4e86\u79f0\u4e3a DHCPv6 \u7684\u7c7b\u4f3c\u534f\u8bae\u3002\u867d\u7136\u6838\u5fc3\u6982\u5ff5\u4fdd\u6301\u4e0d\u53d8\uff08\u81ea\u52a8 IP \u5730\u5740\u5206\u914d\uff09\uff0c\u4f46 DHCPv6 \u5305\u62ec\u65e8\u5728\u652f\u6301\u66f4\u5927\u5730\u5740\u7a7a\u95f4\u548c IPv6 \u9644\u52a0\u529f\u80fd\u7684\u589e\u5f3a\u529f\u80fd\u3002<\/p>\n

        \u8f6f\u4ef6\u5b9a\u4e49\u7f51\u7edc (SDN) \u548c\u7f51\u7edc\u529f\u80fd\u865a\u62df\u5316 (NFV) \u7b49\u65b0\u5174\u6280\u672f\u53ef\u80fd\u4f1a\u5f71\u54cd DHCP \u7684\u53d1\u5c55\u65b9\u5f0f\uff0c\u4ece\u800c\u6709\u53ef\u80fd\u5e26\u6765\u66f4\u52a0\u52a8\u6001\u548c\u7075\u6d3b\u7684 IP \u5730\u5740\u7ba1\u7406\u7cfb\u7edf\u3002<\/p>\n

        DHCP \u548c\u4ee3\u7406\u670d\u52a1\u5668<\/h2>\n

        DHCP \u548c\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u534f\u540c\u5de5\u4f5c\u6765\u7ba1\u7406\u7f51\u7edc\u6d41\u91cf\u3002 DHCP \u670d\u52a1\u5668\u5c06 IP \u5730\u5740\u5206\u914d\u7ed9\u5ba2\u6237\u7aef\uff0c\u4f7f\u5b83\u4eec\u80fd\u591f\u5728\u7f51\u7edc\u4e0a\u8fdb\u884c\u901a\u4fe1\uff0c\u800c\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u5f15\u5bfc\u8fd9\u4e9b\u5ba2\u6237\u7aef\u548c\u5916\u90e8\u7f51\u7edc\u4e4b\u95f4\u7684\u6d41\u91cf\u3002\u6b64\u8bbe\u7f6e\u63d0\u4f9b\u4e00\u5b9a\u7a0b\u5ea6\u7684\u5b89\u5168\u6027\u548c\u5bf9\u7f51\u7edc\u6d41\u91cf\u7684\u63a7\u5236\u3002<\/p>\n

        \u4f8b\u5982\uff0c\u4ee3\u7406\u670d\u52a1\u5668\u53ef\u4ee5\u7f13\u5b58\u7ecf\u5e38\u8bbf\u95ee\u7684\u7f51\u7ad9\u7684\u5185\u5bb9\uff0c\u4ece\u800c\u51cf\u5c11\u5e26\u5bbd\u4f7f\u7528\u3002\u5b83\u8fd8\u53ef\u4ee5\u8fc7\u6ee4\u548c\u963b\u6b62\u6d41\u91cf\uff0c\u63d0\u4f9b\u4e00\u5b9a\u7a0b\u5ea6\u7684\u7f51\u7edc\u5b89\u5168\u3002 DHCP \u6709\u52a9\u4e8e\u786e\u4fdd\u8fd9\u4e9b\u4ee3\u7406\u670d\u52a1\u5668\u62e5\u6709\u6709\u6548\u8fd0\u884c\u6240\u9700\u7684\u6b63\u786e\u4e14\u4e00\u81f4\u7684 IP \u5730\u5740\u3002<\/p>\n

        \u76f8\u5173\u94fe\u63a5<\/h2>\n

        \u6709\u5173 DHCP \u7684\u66f4\u591a\u4fe1\u606f\uff0c\u60a8\u53ef\u4ee5\u53c2\u8003\u4ee5\u4e0b\u8d44\u6e90\uff1a<\/p>\n

          \n
        1. RFC 2131 \u2013 \u52a8\u6001\u4e3b\u673a\u914d\u7f6e\u534f\u8bae<\/a><\/li>\n
        2. \u5fae\u8f6f DHCP \u6587\u6863<\/a><\/li>\n
        3. \u601d\u79d1 DHCP \u914d\u7f6e\u6307\u5357<\/a><\/li>\n
        4. \u4e86\u89e3 DHCP<\/a><\/li>\n
        5. DHCP\uff08\u7ef4\u57fa\u767e\u79d1\uff09<\/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 Dynamic Host Configuration Protocol (DHCP)<\/mark>","faq_items":[{"question":"What is DHCP?","answer":"

          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":"

          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":"

          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":"

          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":"

          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":"

          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":"

          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":"

          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\/cn\/wp-json\/wp\/v2\/wiki\/476801","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/wiki\/476801\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media\/476802"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/cn\/wp-json\/wp\/v2\/media?parent=476801"}],"curies":[{"name":"\u53ef\u6e7f\u6027\u7c89\u5242","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}