{"id":196,"date":"2026-09-04T16:28:31","date_gmt":"2026-09-04T08:28:31","guid":{"rendered":"https:\/\/cookie-qwq.xyz\/?p=196"},"modified":"2026-09-05T18:12:02","modified_gmt":"2026-09-05T10:12:02","slug":"%e4%b8%89%e5%b1%82arp%e5%ae%9e%e9%aa%8c","status":"publish","type":"post","link":"https:\/\/cookie-qwq.xyz\/index.php\/2026\/09\/04\/%e4%b8%89%e5%b1%82arp%e5%ae%9e%e9%aa%8c\/","title":{"rendered":"\u4e09\u5c42ARP\u5b9e\u9a8c"},"content":{"rendered":"\n

\u5b9e\u9a8c2-top \u4e09\u5c42ARP<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u8bf4\u660e\uff1aS1\u4e8c\u5c42\u4ea4\u6362\u673a\uff0cAR1\u8def\u7531\u5668\u3002PC1\u548cPC2\u4e0d\u540c\u7f51\u6bb5\uff0c\u7531\u4e8e\u662f\u4e09\u5c42ARP\uff0c\u6240\u4ee5\u4e0d\u7ec6\u5199\u4ea4\u6362\u673a\u7684\u529f\u80fd\uff0c\u5728\u4e8c\u5c42ARP\u5b9e\u9a8c\u5df2\u7ecf\u8be6\u7ec6\u8bf4\u660e\u3002<\/p>\n\n\n\n

PC1 ping PC2\uff08\u7b2c\u4e00\u6b21\u901a\u4fe1 \uff09<\/p>\n\n\n\n

\u2460\u3001PC1 \u5230 AR1<\/mark><\/strong><\/p>\n\n\n\n

\u56e0\u4e3a\u4e0d\u540c\u7f51\u6bb5\u7684\u901a\u4fe1\uff0c\u6570\u636e\u5305\u90fd\u8981\u7ecf\u8fc7\u7f51\u5173\uff1b<\/p>\n\n\n\n

PC1\u5728\u7b2c\u4e00\u6b21pingPC2\u7684\u65f6\u5019\uff0c\u56e0\u4e3a\u4e0d\u77e5\u9053\u81ea\u5df1\u7f51\u5173\uff08GATEWAY\uff09\u7684MAC\u5730\u5740\uff0c\u6240\u4ee5\u4f1a\u5411\u7f51\u5173\u53d1\u9001\u4e00\u4e2aARP Request\u3002<\/p>\n\n\n\n

\u6b64\u65f6ARP Request\u7684\u5185\u5bb9<\/p>\n\n\n\n

ARP<\/p>\n\n\n\n

Sender IP address\uff1a192.168.1.2<\/p>\n\n\n\n

Sender MAC address\uff1a54-89-98-1B-13-7D<\/p>\n\n\n\n

Target IP address\uff1a192.168.1.1\uff0c\uff08\u7f51\u5173\u7684IP\u5730\u5740\uff09<\/p>\n\n\n\n

Target MAC address\uff1aff:ff:ff:ff:ff:ff<\/p>\n\n\n\n

\u6570\u636e\u94fe\u8def\u5c42<\/p>\n\n\n\n

Source MAC\uff1a54-89-98-1B-13-7D<\/p>\n\n\n\n

destination\uff1aff:ff:ff:ff:ff:ff<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

<\/p>\n\n\n\n

\u2461\u3001AR1 – PC1<\/strong><\/mark><\/p>\n\n\n\n

\u5f53AR1\u63a5\u6536\u5230PC1\u53d1\u9001\u7684ARP Request\u4e4b\u540e\uff0c\u770b\u5230\u76ee\u7684IP\u5730\u5740\u548c\u81ea\u5df1\u5bf9\u5e94\u63a5\u53e3IP\u5730\u5740\u76f8\u540c\u540e\uff0c\u9996\u5148\u4f1a\u5b66\u4e60PC1\u7684IP\u5730\u5740\u548cMAC\u5730\u5740\u5e76\u6620\u5c04\u5230ARP\u8868\u9879<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u5b8c\u6210\u4e4b\u540e\u4fbf\u4f1a\u5c01\u88c5\u4e00\u4e2aARP reply\u8fdb\u884c\u56de\u590d\uff0c\u91cc\u9762\u7684\u4e3b\u8981\u4fe1\u606f\uff1a<\/p>\n\n\n\n

ARP<\/p>\n\n\n\n

Sender IP address\uff1a192.168.1.1<\/p>\n\n\n\n

Sender MAC address\uff1a00e0-fcfb-36a5\uff0c\u8fd9\u91cc\u662f\u4e0ePC1\u4e92\u8fde\u63a5\u53e3\u7684MAC\u5730\u5740<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

Target IP address\uff1a192.168.1.2<\/p>\n\n\n\n

Target MAC address\uff1a54-89-98-1B-13-7D<\/p>\n\n\n\n

\u6570\u636e\u94fe\u8def\u5c42<\/p>\n\n\n\n

Source MAC\uff1a00e0-fcfb-36a5<\/p>\n\n\n\n

destination MAC\uff1a54-89-98-1B-13-7D<\/p>\n\n\n\n

\u5c01\u88c5\u5b8c\u6210\u540e\uff0c\u53d1\u9001\u7ed9PC1\uff0cPC1\u5b66\u4e60\u91cc\u9762\u7f51\u5173\u7684MAC\u5730\u5740\u4fe1\u606f\uff0c\u628a\u7f51\u5173\u7684IP\u5730\u5740\u548cMAC\u5730\u5740\u6620\u5c04\u6210\u4e00\u4e2aARP\u8868\u9879\u3002<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u5b8c\u6210\u8fd9\u4e00\u6b65\u9aa4\u540e\uff0cPC1\u5c01\u88c5ICMP\u62a5\u6587\u53d1\u9001\u7ed9\u7f51\u5173192.168.1.1\uff0c\u5373AR1\u7684GE0\/0\/0\u63a5\u53e3\u3002<\/p>\n\n\n\n

\u2462\u3001\u7b2c\u4e00\u4e2aICMP\uff08\u54cd\u5e94\u8d85\u65f6\uff09<\/mark><\/strong><\/p>\n\n\n\n

\u89c2\u5bdfNo.22 ICMP\u534f\u8bae\u62a5\u6587\uff0c\u8fd9\u5c31\u662f\u5b8c\u6210ARP\u4e4b\u540e\u53d1\u9001\u7684\u7b2c\u4e00\u4e2aICMP\u62a5\u6587\uff0c\u4e00\u822c\u662f\u54cd\u5e94\u8d85\u65f6\u7684\uff0c\u6700\u540e\u6709\u8bb2\u54cd\u5e94\u8d85\u65f6\u539f\u56e0\u3002<\/p>\n\n\n\n

ICMP<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

IP\u5c42<\/p>\n\n\n\n

\u6e90IP\u5730\u5740\uff1a192.168.1.2<\/p>\n\n\n\n

\u76ee\u7684IP\u5730\u5740\uff1a192.168.2.2<\/p>\n\n\n\n

\u6570\u636e\u94fe\u8def\u5c42<\/p>\n\n\n\n

\u6e90MAC\u5730\u5740\uff1a54-89-98-1B-13-7D\uff08PC1\uff09<\/p>\n\n\n\n

\u76ee\u7684MAC\u5730\u5740\uff1a00e0-fcfb-36a5\uff08AR1 GE 0\/0\/0\uff09<\/p>\n\n\n\n

\u53ef\u4ee5\u770b\u5230\u8fd9\u91cc\u6570\u636e\u94fe\u8def\u5c42\u7684\u76ee\u7684MAC\u5730\u5740\u548cIP\u5c42\u7684\u76ee\u7684MAC\u5730\u5740\u5bf9\u5e94\u4e0d\u4e0a\u3002<\/p>\n\n\n\n

\u8fd9\u91cc\u4e3b\u8981\u662f\u56e0\u4e3a\uff0cPC1\u5728\u5b66\u4e60\u4e86\u7f51\u5173\u7684MAC\u5730\u5740\u540e\uff0c\u5e76\u4e14\u8fd9\u662f\u5c5e\u4e8e\u4e0d\u540c\u7f51\u6bb5\u7684\u901a\u4fe1\uff0c\u6570\u636e\u5305\u8981\u4ea4\u7ed9\u7f51\u5173\u8fdb\u884c\u5904\u7406\uff0c\u6240\u4ee5\u6570\u636e\u94fe\u8def\u5c42\u7684\u76ee\u7684MAC\u5730\u5740\u662f\u7f51\u5173\u7684MAC\u5730\u5740\u3002<\/p>\n\n\n\n

IP\u5c42\u76ee\u7684IP\u662fPC2\u7684IP\u5730\u5740\u539f\u56e0\uff1a<\/p>\n\n\n\n

\u56e0\u4e3aPC1ping\u7684\u662fPC2\uff0c\u6240\u4ee5\u5728\u5c01\u88c5ICMP\u62a5\u6587\u7684\u65f6\u5019\uff0c\u6e90IP\u5730\u5740\u662fPC1\uff0c\u76ee\u7684IP\u5730\u5740\u662fPC2\uff0c\u8def\u7531\u5668\u4e3b\u8981\u662f\u770b\u8fd9\u4e00\u90e8\u5206\u8fdb\u884c\u8def\u7531\u8f6c\u53d1\u3002<\/p>\n\n\n\n

\u2463\u3001AR1 -> PC2<\/mark><\/strong><\/p>\n\n\n\n

AR1\u63a5\u6536\u5230ICMP\u62a5\u6587\u540e\uff0c\u67e5\u770bICMP\u62a5\u6587\u91cc\u9762\u7684\u76ee\u7684IP\u5730\u5740\uff0c\u53d1\u73b0\u662f\u4e0d\u540c\u7f51\u6bb5\u7684\uff0c\u5c31\u53bb\u67e5\u8be2\u8def\u7531\u8868<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u4ece\u5b50\u7f51\u63a9\u7801\u6700\u5927\u9879\u5f00\u59cb\u67e5\uff0c\u6700\u540e\u67e5\u523024\u4f4d\u5b50\u7f51\u63a9\u7801\u65f6\uff0c\u53d1\u73b0\u901a\u5f80192.168.2.0\/24\u7f51\u6bb5\u7684\u6570\u636e\u5305\u7684\u4e0b\u4e00\u8df3\u4e3a192.168.2.1\uff0c\u63a5\u53e3\u53f7\u4e3a GE 0\/0\/1\u3002<\/p>\n\n\n\n

\u6240\u4ee5\u6b64\u65f6AR1\uff0c\u5c31\u4f1a\u5728GE 0\/0\/1\u53d1\u751f\u6570\u636e\uff0c\u7531\u4e8eAR1\u548cPC2\u4e4b\u95f4\u4e5f\u662f\u7b2c\u4e00\u6b21\u901a\u4fe1\uff0cAR1\u7684ARP\u8868\u9879\u4e2d\u6ca1\u6709PC2\u7684MAC\u5730\u5740\uff0c\u6240\u4ee5\u6b64\u65f6AR1\u4e5f\u4f1a\u5c01\u88c5\u4e00\u4e2aARP Request\u4eceGE 0\/0\/1\u53d1\u9001\u7ed9PC2\u3002<\/p>\n\n\n\n

\u8fd9\u91cc\u4e0d\u4ecb\u7ecdARP Request\u6570\u636e\u94fe\u8def\u5c42\u7684\u4fe1\u606f\u4e86\u3002<\/p>\n\n\n\n

ARP<\/p>\n\n\n\n

Sender IP address\uff1a192.168.2.1<\/p>\n\n\n\n

Sender MAC address\uff1a00e0-fcfb-36a6\uff08AR1 GE 0\/0\/1\uff09<\/p>\n\n\n\n

Target IP address\uff1a192.168.2.2<\/p>\n\n\n\n

Target MAC address\uff1aff:ff:ff:ff:ff:ff<\/p>\n\n\n\n

\u2464\u3001PC2 -> AR1<\/mark><\/strong><\/p>\n\n\n\n

PC2\u63a5\u6536\u5230ARP Request\u6570\u636e\u5305\u540e\uff0c\u5b66\u4e60\u91cc\u9762\u7684\u7f51\u5173\u7684IP\u5730\u5740\u548cMAC\u5730\u5740\u6620\u5c04\u5230\u81ea\u5df1\u7684ARP\u8868\u9879\u4e2d<\/p>\n\n\n\n

\u5b66\u4e60\u5b8c\u6210\u540e\uff0c\u53d1\u9001ARP reply\u7ed9AR1 GE 0\/0\/1<\/p>\n\n\n\n

AR1 GE 0\/0\/1 \u63a5\u6536\u5230\u540e\uff0c\u89e3\u5c01\u88c5\u5b66\u4e60\u91cc\u9762PC2\u7684MAC\u5730\u5740\uff0c\u5e76\u6620\u5c04\u5230ARP\u8868\u9879\u4e2d\u3002<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u5b8c\u6210\u4e4b\u540e\u518d\u7ee7\u7eed\u53d1\u9001ICMP\u8bf7\u6c42\u62a5\u6587\u3002<\/p>\n\n\n\n

\u2465\u3001\u7b2c\u4e00\u4e2aICMP\u54cd\u5e94\u8d85\u65f6\u539f\u56e0<\/mark><\/strong><\/p>\n\n\n\n

\u7531\u4e8e\u5728PC1\u548cPC1\u7684\u7f51\u5173\u5efa\u7acb\u8054\u7cfb\u7684\u65f6\u5019\uff0c\u7b2c\u4e00\u4e2aICMP\u56e0\u4e3aAR1\u548cPC2\u5b66\u4e60MAC\u5730\u5740\u7684\u65f6\u5019\u6ca1\u6709\u56de\u590d\uff0c\u6240\u4ee5\u4f1a\u5bfc\u81f4\u6211\u4eecping\u7684\u65f6\u5019\u7b2c\u4e00\u4e2a\u5305\u4f1a\u663e\u793aRequest timeout\uff01<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u5b8c\u6210MAC\u5730\u5740\u7684\u5b66\u4e60\u4e4b\u540e\uff0cPC1\u548cPC2\u5c31\u53ef\u4ee5\u6b63\u5e38\u901a\u4fe1\u4e86\u3002<\/p>\n\n\n\n

<\/p>\n\n\n\n

\u8865\u5145\uff0c\u8def\u7531\u8f6c\u53d1\u7ec6\u8282\uff1a<\/strong><\/mark><\/p>\n\n\n\n

\u6211\u4eec\u89c2\u5bdfPC1\u548cPC2\u6574\u6761\u94fe\u8def\u7684ICMP\u6570\u636e\u5305\u60c5\u51b5\uff0c\u4e3b\u8981\u89c2\u5bdf\u6570\u636e\u5e27\u91cc\u9762\u7684\u6e90\u76eeMAC\u5730\u5740\u4fe1\u606f<\/p>\n\n\n\n

PC1 -> AR1<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

AR1 GE 0\/0\/0<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

AR1 GE 0\/0\/1<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u89c2\u5bdf\u5230\u8fd9\u91cc\u53ef\u4ee5\u53d1\u73b0\uff0cPC1 – AR1\u7684\u6e90\u76eeMAC\u672c\u6765\u662fPC1\u3001AR1 GE 0\/0\/0<\/p>\n\n\n\n

\u4f46\u662f\u5230AR1 GE 0\/0\/1\u65f6\uff0c\u6e90MAC\u53d8\u6210\u4e86GE 0\/0\/1\u7684MAC\uff0c\u76ee\u7684MAC\u53d8\u6210\u4e86PC2\u7684\uff0c\u8fd9\u662f\u56e0\u4e3a\u7ecf\u8fc7\u8def\u7531\u5668\u7684\u5904\u7406\u540e\uff0c\u6570\u636e\u5305\u4eceGE 0\/0\/0 \u4ea4\u7ed9\u4e86GE 0\/0\/1\u5904\u7406\uff0c\u6240\u4ee5\u6e90\u76eeMAC\u5730\u5740\u53d1\u751f\u4e86\u6539\u53d8\u3002<\/p>\n\n\n\n

\u4ecePC2 \u53d1\u9001\u7684\u56de\u590d\u62a5\u6587\u4e5f\u662f\u5982\u6b64<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

AR1 GE 0\/0\/1<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

AR1 GE 0\/0\/0<\/p>\n\n\n\n

\"\"<\/div><\/figure>\n\n\n\n

\u4ee5\u4e0a\u4fbf\u662f\u4e09\u5c42ARP\uff0c2026\u5e749\u67084\u65e516:22:25\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5b9e\u9a8c2-top \u4e09\u5c42ARP \u8bf4\u660e\uff1aS1\u4e8c\u5c42\u4ea4\u6362\u673a\uff0cAR1\u8def\u7531\u5668\u3002PC1\u548cPC2\u4e0d\u540c\u7f51\u6bb5\uff0c\u7531\u4e8e\u662f\u4e09\u5c42ARP\uff0c\u6240\u4ee5 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[14,13,11],"class_list":["post-196","post","type-post","status-publish","format-standard","hentry","category-archives","tag-arp","tag-13","tag-11"],"_links":{"self":[{"href":"https:\/\/cookie-qwq.xyz\/index.php\/wp-json\/wp\/v2\/posts\/196","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cookie-qwq.xyz\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cookie-qwq.xyz\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cookie-qwq.xyz\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cookie-qwq.xyz\/index.php\/wp-json\/wp\/v2\/comments?post=196"}],"version-history":[{"count":1,"href":"https:\/\/cookie-qwq.xyz\/index.php\/wp-json\/wp\/v2\/posts\/196\/revisions"}],"predecessor-version":[{"id":218,"href":"https:\/\/cookie-qwq.xyz\/index.php\/wp-json\/wp\/v2\/posts\/196\/revisions\/218"}],"wp:attachment":[{"href":"https:\/\/cookie-qwq.xyz\/index.php\/wp-json\/wp\/v2\/media?parent=196"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cookie-qwq.xyz\/index.php\/wp-json\/wp\/v2\/categories?post=196"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cookie-qwq.xyz\/index.php\/wp-json\/wp\/v2\/tags?post=196"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}