{"id":51674,"date":"2024-12-03T13:18:17","date_gmt":"2024-12-03T05:18:17","guid":{"rendered":"https:\/\/fwq.ai\/blog\/51674\/"},"modified":"2024-12-03T13:18:17","modified_gmt":"2024-12-03T05:18:17","slug":"linux%e4%b8%ad%e6%90%9c%e7%b4%a2dhcp%e5%8c%85%e7%9a%84%e6%9c%89%e6%95%88%e5%91%bd%e4%bb%a4%e6%98%af%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/51674\/","title":{"rendered":"Linux\u4e2d\u641c\u7d22DHCP\u5305\u7684\u6709\u6548\u547d\u4ee4\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Linux\u4e2d\u641c\u7d22DHCP\u5305\u7684\u6709\u6548\u547d\u4ee4\u662f\u4ec0\u4e48\uff1f<\/h1>\n<p>\u5728 Linux \u7cfb\u7edf\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 tcpdump \u547d\u4ee4\u641c\u7d22 DHCP \u5305\u3002tcpdump \u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u7f51\u7edc\u6293\u5305\u5de5\u5177\uff0c\u80fd\u591f\u622a\u53d6\u548c\u5206\u6790\u7f51\u7edc\u6570\u636e\u5305\u3002\u901a\u8fc7\u6307\u5b9a\u76d1\u542c\u7684\u7f51\u7edc\u63a5\u53e3\u3001DHCP \u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u7684\u7aef\u53e3\u53f7\uff0ctcpdump \u80fd\u591f\u6355\u83b7\u6240\u6709\u7ecf\u8fc7\u8be5\u7f51\u7edc\u63a5\u53e3\u7684 DHCP \u5305\uff0c\u4e3a\u7f51\u7edc\u7ba1\u7406\u5458\u63d0\u4f9b\u8be6\u7ec6\u7684 DHCP \u6570\u636e\u5305\u4fe1\u606f\uff0c\u4ee5\u4fbf\u8fdb\u884c\u6545\u969c\u6392\u9664\u548c\u8c03\u8bd5\u3002<\/p>\n<p>\u5728Linux\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528<code>tcpdump<\/code>\u547d\u4ee4\u6765\u67e5\u627eDHCP\u5305\u3002<code>tcpdump<\/code>\u662f\u4e00\u4e2a\u7f51\u7edc\u6293\u5305\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u6765\u622a\u53d6\u548c\u5206\u6790\u7f51\u7edc\u6570\u636e\u5305\u3002\u4e0b\u9762\u662f\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\uff1a<\/p>\n<pre>sudo tcpdump -i &lt;network_interface&gt; port 67 or port 68 -vv<\/pre>\n<p>\u5176\u4e2d\uff0c<code>&lt;network_interface&gt;<\/code>\u662f\u4f60\u8981\u76d1\u542c\u7684\u7f51\u7edc\u63a5\u53e3\uff0c\u53ef\u4ee5\u901a\u8fc7<code>ifconfig<\/code>\u547d\u4ee4\u6765\u67e5\u770b\u5f53\u524d\u7cfb\u7edf\u7684\u7f51\u7edc\u63a5\u53e3\u3002<code>port 67<\/code>\u548c<code>port 68<\/code>\u5206\u522b\u4ee3\u8868DHCP\u670d\u52a1\u5668\u548cDHCP\u5ba2\u6237\u7aef\u7684\u7aef\u53e3\u53f7\u3002<\/p>\n<p>\u8fd0\u884c\u4e0a\u8ff0\u547d\u4ee4\u540e\uff0c\u4f60\u5c06\u4f1a\u770b\u5230\u6240\u6709\u7ecf\u8fc7\u7f51\u7edc\u63a5\u53e3\u7684DHCP\u5305\u6570\u636e\u3002\u53ef\u4ee5\u6839\u636e\u9700\u8981\u8fdb\u884c\u8fdb\u4e00\u6b65\u5206\u6790\u548c\u8c03\u8bd5\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u662f\u5426\u6709\u987a\u5229\u5e2e\u52a9\u4f60\u89e3\u51b3\u95ee\u9898\uff1f\u82e5\u662f\u80fd\u7ed9\u4f60\u5e26\u6765\u5b66\u4e60\u4e0a\u7684\u5e2e\u52a9\uff0c\u8bf7\u5927\u5bb6\u591a\u591a\u652f\u6301\u7c73\u4e91\uff01\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u4e5f\u53ef\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u3002<\/p>\n<dl>\n<dt><\/dt>\n<dd>\n   Win11\u767b\u5f55\u5fae\u8f6f\u8d26\u6237\u9047\u5230\u9519\u8bef\uff0c\u5982\u4f55\u89e3\u51b3\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>Linux\u4e2d\u641c\u7d22DHCP\u5305\u7684\u6709\u6548\u547d\u4ee4\u662f\u4ec0\u4e48\uff1f \u5728 Linux \u7cfb\u7edf\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 tcpdump \u547d\u4ee4\u641c\u7d22 DHCP \u5305\u3002tcpdump \u662f\u4e00\u4e2a\u5f3a\u5927\u7684\u7f51\u7edc\u6293\u5305\u5de5\u5177\uff0c\u80fd\u591f\u622a\u53d6\u548c\u5206\u6790\u7f51\u7edc\u6570\u636e\u5305\u3002\u901a\u8fc7\u6307\u5b9a\u76d1\u542c\u7684\u7f51\u7edc\u63a5\u53e3\u3001DHCP \u670d\u52a1\u5668\u548c\u5ba2\u6237\u7aef\u7684\u7aef\u53e3\u53f7\uff0ctcpdump \u80fd\u591f\u6355\u83b7\u6240\u6709\u7ecf\u8fc7\u8be5\u7f51\u7edc\u63a5\u53e3\u7684 DHCP \u5305\uff0c\u4e3a\u7f51\u7edc\u7ba1\u7406\u5458\u63d0\u4f9b\u8be6\u7ec6\u7684 DHCP \u6570\u636e\u5305\u4fe1\u606f\uff0c\u4ee5\u4fbf\u8fdb\u884c\u6545\u969c\u6392\u9664\u548c\u8c03\u8bd5\u3002 \u5728Linux\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528tcpdump\u547d\u4ee4\u6765\u67e5\u627eDHCP\u5305\u3002tcpdump\u662f\u4e00\u4e2a\u7f51\u7edc\u6293\u5305\u5de5\u5177\uff0c\u53ef\u4ee5\u7528\u6765\u622a\u53d6\u548c\u5206\u6790\u7f51\u7edc\u6570\u636e\u5305\u3002\u4e0b\u9762\u662f\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\uff1a sudo tcpdump -i &lt;network_interface&gt; port 67 or port 68 -vv \u5176\u4e2d\uff0c&lt;network_interface&gt;\u662f\u4f60\u8981\u76d1\u542c\u7684\u7f51\u7edc\u63a5\u53e3\uff0c\u53ef\u4ee5\u901a\u8fc7ifconfig\u547d\u4ee4\u6765\u67e5\u770b\u5f53\u524d\u7cfb\u7edf\u7684\u7f51\u7edc\u63a5\u53e3\u3002port 67\u548cport 68\u5206\u522b\u4ee3\u8868DHCP\u670d\u52a1\u5668\u548cDHCP\u5ba2\u6237\u7aef\u7684\u7aef\u53e3\u53f7\u3002 \u8fd0\u884c\u4e0a\u8ff0\u547d\u4ee4\u540e\uff0c\u4f60\u5c06\u4f1a\u770b\u5230\u6240\u6709\u7ecf\u8fc7\u7f51\u7edc\u63a5\u53e3\u7684DHCP\u5305\u6570\u636e\u3002\u53ef\u4ee5\u6839\u636e\u9700\u8981\u8fdb\u884c\u8fdb\u4e00\u6b65\u5206\u6790\u548c\u8c03\u8bd5\u3002 \u4ee5\u4e0a\u5c31\u662f\u672c\u6587\u7684\u5168\u90e8\u5185\u5bb9\u4e86\uff0c\u662f\u5426\u6709\u987a\u5229\u5e2e\u52a9\u4f60\u89e3\u51b3\u95ee\u9898\uff1f\u82e5\u662f\u80fd\u7ed9\u4f60\u5e26\u6765\u5b66\u4e60\u4e0a\u7684\u5e2e\u52a9\uff0c\u8bf7\u5927\u5bb6\u591a\u591a\u652f\u6301\u7c73\u4e91\uff01\u66f4\u591a\u5173\u4e8e\u6587\u7ae0\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u4e5f\u53ef\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u3002 Win11\u767b\u5f55\u5fae\u8f6f\u8d26\u6237\u9047\u5230\u9519\u8bef\uff0c\u5982\u4f55\u89e3\u51b3\uff1f<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-51674","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/51674","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=51674"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/51674\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=51674"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=51674"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=51674"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}