{"id":374,"date":"2025-03-25T13:02:37","date_gmt":"2025-03-25T05:02:37","guid":{"rendered":"https:\/\/asahiya.cn\/?p=374"},"modified":"2025-03-26T20:40:03","modified_gmt":"2025-03-26T12:40:03","slug":"hcia-datacom-dhcp%e7%af%87","status":"publish","type":"post","link":"https:\/\/asahiya.cn\/index.php\/2025\/03\/25\/hcia-datacom-dhcp%e7%af%87\/","title":{"rendered":"HCIA-Datacom\u2014\u2014\u2014\u2014\u2014\u2014DHCP\u7bc7"},"content":{"rendered":"\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">\u9759\u6001\u4e0e\u52a8\u6001<\/li>\n<\/ul>\n\n\n\n<p>\u5982\u679c\u6211\u4eec\u8981\u8bbf\u95ee\u7f51\u7edc\uff0c\u6700\u8d77\u7801\u8981\u62e5\u6709\u4e00\u4e2aip\u5730\u5740\uff0c\u8fd9\u53ef\u80fd\u662f\u8bbf\u95ee\u4e92\u8054\u7f51\u6700\u57fa\u672c\u7684\u4e00\u6761\u4ef6\u4e86\u3002\u4f46\u662f\u7a76\u7adf\u662f\u8c01\u7ed9\u6211\u4eec\u5206\u914dIP\u5730\u5740\u7684\u5462\uff1f\u53ef\u80fd\u6709\u4eba\u4f1a\u8bf4\u662f\u8fd0\u8425\u5546\u7ed9\u6211\u4eec\u7684\uff0c\u4f46\u662f\u5982\u679c\u4f60\u7528wifi\u6765\u8fde\u63a5\u7f51\u7edc\u4e3a\u4ec0\u4e48\u53ea\u9700\u8981\u8f93\u5165wifi\u540d\u79f0\u548c\u5bc6\u7801\u5c31\u53ef\u4ee5\u8fde\u63a5\u7f51\u7edc\u5462\uff1f\u8fd9\u5c31\u662fDHCP\u5728\u8d77\u4f5c\u7528\u3002<br>\u8bd5\u60f3\u4e00\u4e0b\u5982\u679c\u8ba9\u6211\u4eec\u5b8c\u5168\u624b\u52a8\u53bb\u914d\u7f6e\u4e0a\u7f51\u4fe1\u606f\uff0c\u9700\u8981\u81ea\u5df1\u53bb\u586b\u5199IP\u5730\u5740\uff0c\u5b50\u7f51\u63a9\u7801\uff0c\u7f51\u5173\u548cDNS\u670d\u52a1\u5668\u5730\u5740\uff0c\u5982\u679c\u5bb6\u91cc\u6765\u4e86\u5ba2\u4eba\u4f60\u8ba9\u5ba2\u4eba\u914d\u7f6e\u8fd9\u4e9b\u6765\u8fde\u63a5\u7f51\u7edc\uff0c\u8fd9\u7b80\u76f4\u5c31\u662f\u707e\u96be\u3002\u800c\u4e14\u7f51\u7edc\u7ba1\u7406\u5458\u8fd8\u5f97\u786e\u4fdd\u4e00\u4e2aIP\u5730\u5740\u53ea\u7ed9\u4e00\u53f0\u8bbe\u5907\u7528\uff0c\u5176\u4ed6\u4eba\u4e0d\u80fd\u7528\uff0c\u4e0d\u7136\u4f1a\u53d1\u751f\u51b2\u7a81\u3002\u8fd9\u6837\u914d\u7f6e\u7684IP\u5730\u5740\u662f\u9759\u6001\u7684\uff0c\u9002\u5408\u957f\u671f\u4f7f\u7528\u3002<br>\u4e00\u822c\u6765\u8bf4\u56fa\u5b9a\u7684\u7684\u8bbe\u5907\u6bd4\u5982\uff1a\u6253\u5370\u673a\u3001\u670d\u52a1\u5668\u3001NAS&#8230;\u9700\u8981\u4f7f\u7528\u8fd9\u6837\u7684\u9759\u6001IP\u5730\u5740\uff0c\u8fd9\u6837\u7684IP\u5730\u5740\u5206\u914d\u65b9\u5f0f\u4e0d\u592a\u9002\u5408\u5927\u90e8\u5206\u7684\u5bb6\u5ead\u548c\u516c\u5171\u573a\u6240\uff0c\u56e0\u6b64DHCP\u8fd9\u79cd\u7684\u5206\u914dIP\u5730\u5740\u7684\u65b9\u5f0f\u5c31\u53d8\u5f97\u5341\u5206\u91cd\u8981\uff01\u4e0d\u7ba1\u6211\u4eec\u4f7f\u7528\u7684\u662f\u6709\u7ebf\u8fd8\u662f\u65e0\u7ebf\u8bbe\u5907\uff0c\u53ea\u8981\u5f00\u542f\u4e86\u81ea\u52a8\u83b7\u53d6IP\u5730\u5740\u7684\u65b9\u5f0f\uff0c\u4e00\u822cDHCP\u670d\u52a1\u5668\u90fd\u4f1a\u7ed9\u6211\u4eec\u5206\u914dIP\u5730\u5740\uff0c\u5b50\u7f51\u63a9\u7801\uff0c\u7f51\u5173\u548cDNS\u670d\u52a1\u5668\u5730\u5740\uff0c\u6211\u4eec\u7684\u8bbe\u5907\u83b7\u53d6\u5230\u8fd9\u4e9b\u4fe1\u606f\u4e4b\u540e\uff0c\u5c31\u4f1a\u81ea\u52a8\u914d\u7f6e\uff0c\u7136\u540e\u5c31\u53ef\u4ee5\u4e0a\u7f51\u4e86~<\/p>\n\n\n\n<p class=\"has-text-align-center\" style=\"font-size:100px;letter-spacing:0px\">DHCP<\/p>\n\n\n\n<p class=\"has-text-align-center\" style=\"font-size:48px\">Dynamic Host Configuration Protocol<\/p>\n\n\n\n<p class=\"has-text-align-center has-x-large-font-size\">\u52a8\u6001\u4e3b\u673a\u914d\u7f6e\u534f\u8bae<\/p>\n\n\n\n<p>Dynamic\uff1a\u52a8\u6001<br>\u8868\u793a\u52a8\u6001\u5206\u914dIP\u5730\u5740\uff0c\u8fc7\u7a0b\u81ea\u52a8\u5316\uff0c\u7ec8\u7aef\u65e0\u9700\u4e00\u4e00\u624b\u5de5\u914d\u7f6e\u3002<br>Configuration\uff1a\u914d\u7f6e<br>\u5728\u83b7\u53d6\u7684\u4fe1\u606f\u4e2d\u4e0d\u6b62\u80fd\u83b7\u53d6\u5230IP\u5730\u5740\uff0c\u5b50\u7f51\u63a9\u7801\uff0c\u7f51\u5173\u548cDNS\u670d\u52a1\u5668\u5730\u5740\u8fd9\u4e9b\u57fa\u672c\u4fe1\u606f\uff0c\u5177\u4f53\u53ef\u4ee5\u67e5\u770b\u6587\u6863\u4e2d\u5173\u4e8eoption\u7684\u8bbe\u5b9a\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">\u5730\u5740\u6c60&amp;\u79df\u671f<\/li>\n<\/ul>\n\n\n\n<p>\u4e00\u822c\u5bb6\u4e2d\u6211\u4eec\u80fd\u63a5\u89e6\u5230\u7684dhcp\u670d\u52a1\u5668\u5c31\u662f\u6211\u4eec\u5bb6\u91cc\u7684\u8def\u7531\u5668\u6216\u8005\u5149\u732b\u4e86\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u5982\u679c\u4f60\u77e5\u9053\u8bbe\u5907\u7684\u7ba1\u7406\u5458\u5bc6\u7801\uff0c\u4f60\u5c31\u53ef\u4ee5\u8fdb\u884c\u4e00\u4e9b\u989d\u5916\u914d\u7f6e\uff0c\u5047\u5982\u4f60\u7a81\u7136\u9700\u8981\u589e\u52a0\u975e\u5e38\u591a\u7684\u4e0a\u7f51\u8bbe\u5907 \uff0c\u90a3\u5c31\u53ef\u4ee5\u5728\u8def\u7531\u5668\u7684DHCP\u8bbe\u7f6e\u91cc\u628a\u5730\u5740\u6c60\u7684\u8303\u56f4\u589e\u5927\uff0c\u8fd9\u6837\u8bbe\u5907\u5728\u83b7\u53d6IP\u7684\u65f6\u5019\u5c31\u53ef\u4ee5\u63d0\u4f9b\u66f4\u591a\u7684IP\u5730\u5740\u4e86\u3002<br>\u4e0d\u8fc7\u5927\u5bb6\u53ef\u80fd\u4f1a\u6709\u7591\u60d1\uff1f\u6211\u5728\u5bb6\u4e2d\u771f\u7684\u53ef\u4ee5\u8fd9\u6837\u8bbe\u7f6e\u5417\uff1f\u8fd0\u8425\u5546\u4e0d\u5c31\u7ed9\u4e86\u6211\u597d\u591a\u597d\u591a\u7684IP\u5730\u5740\u5462\uff1f<br>\u5176\u5b9e\u4e00\u822c\u6765\u8bf4\u8def\u7531\u5668\u4e2d\u83b7\u53d6\u7684IP\u5730\u5740\u90fd\u4e3a\u79c1\u6709\u5730\u5740\uff01<\/p>\n\n\n\n<p>Ipv4\u5730\u5740\u5206\u7c7b\uff1a<br>\u516c\u7f51\u5355\u64ad\u5730\u5740\uff1ainternet\uff08\u4e92\u8054\u7f51\uff1a\u5168\u7403\u552f\u4e00\uff09<br>\u79c1\u7f51\u5355\u64ad\u5730\u5740\uff1a\u9694\u79bb\uff0c\u5ef6\u7f13ipv4\u5730\u5740\u6d88\u8017+NAT<br>internet\u4e92\u8054\u7f51\u8def\u7531\u5668\u7684\u8def\u7531\u8868\u4e2d\u6ca1\u6709\u79c1\u7f51\u8def\u7531<br>\u7531RFC1918\u6765\u5b9a\u4e49\uff1a<br>10.0.0.0 &#8211; 10.255.255.255 (10\/8 prefix)&#8212;&#8211;10.0.0.0\/8<br>172.16.0.0 &#8211; 172.31.255.255 (172.16\/12 prefix)&#8212;&#8211;172.16.0.0\/12<br>172.00010000.00000000.00000000- 172.16.0.0<br>172.00011111.11111111.11111111- 172.31.255.255<br>111.11110000.00000000.00000000- \u5b50\u7f51\u63a9\u7801=== 172.16.0.0\/12<br>192.168.0.0 &#8211; 192.168.255.255 (192.168\/16 prefix)<\/p>\n\n\n\n<p>\u603b\u7684\u6765\u8bf4\u5c31\u662f\u8fd0\u8425\u5546\u4e0d\u53ef\u80fd\u8fd9\u4e48\u597d\u5fc3\u7ed9\u4f60\u7684\u90fd\u662f\u516c\u7f51\u5730\u5740\uff0c\u53ef\u80fd\u4f60\u5bb6\u91cc\u6ca1\u6709\u4e00\u4e2a\u516c\u7f51\u5730\u5740\uff0c\u5168\u662f\u79c1\u7f51\u5730\u5740\u9760NAT\uff08Network Address Translation\uff09\u7f51\u7edc\u5730\u5740\u8f6c\u6362\u5f97\u6765\u7684\u5730\u5740\uff0c\u8fd9\u4e9b\u79c1\u6709\u5730\u5740\u53ea\u662f\u5728\u5c40\u57df\u7f51\u91cc\u9762\u4f7f\u7528\uff0c\u6700\u7ec8\u5728\u56e0\u7279\u7f51\u91cc\u9762\u4f20\u8f93\u662f\u9700\u8981\u8f6c\u6210\u516c\u6709\u5730\u5740\u7684\u3002<br>\u5730\u5740\u6c60\u4e2d\u7684\u8303\u56f4\u53ef\u4ee5\u589e\u5927\uff0c\u5f53\u7136\u4e5f\u53ef\u4ee5\u7f29\u5c0f\uff08exclude-address\uff09\uff0c\u4f46\u662f\u64cd\u4f5c\u8981\u5c0f\u5fc3\u3002\u56e0\u4e3aDHCP\u5206\u914d\u51fa\u53bb\u7684IP\u5730\u5740\u662f\u6709\u79df\u671f\u7684\uff08lease day\uff09\uff0c\u5982\u679c\u7ed9\u4e00\u53f0\u8bbe\u5907\u5206\u914d\u4e86\u4e00\u4e2a\u79df\u671f\u4e3a7\u5929\u7684IP\u5730\u5740\uff0c\u8fd9\u53f0\u8bbe\u5907\u5373\u4f7f\u53ea\u4f7f\u7528\u4e86\u8fd9\u4e2aIP\u5730\u57401\u5929\uff0c\u5728\u6ca1\u6709\u989d\u5916\u64cd\u4f5c\u7684\u60c5\u51b5\u4e0b\uff0c\u5176\u4ed6\u8bbe\u5907\u5728\u5230\u671f\u524d\u90fd\u4e0d\u80fd\u4f7f\u7528\u8fd9\u4e2aIP\u5730\u5740\uff0c\u9759\u6001\u5206\u914d\u7684IP\u5730\u5740\u4e0d\u53d7\u79df\u671f\u65f6\u957f\u7684\u9650\u5236\uff0c\u4f7f\u7528\u671f\u9650\u4e3a\u65e0\u9650\u957f\uff0c\u5982\u679c\u60f3\u8981\u65e0\u9650\u79df\u671f\u65f6\u957f\u53ef\u4ee5\u4f7f\u7528unlimited\u547d\u4ee4\uff0c\u8fd9\u6837\u5c31\u65e0\u9650\u79df\u671f\u4e86\uff0c\u4e0d\u8fc7\u8981\u8c28\u614e\u8fd9\u6837\u7684\u8bbe\u7f6e\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>dhcp server lease { day day&#91; hour hour&#91; minute minute ] ]|unlimited }<\/code><\/pre>\n\n\n\n<p>\u53e6\u5916\u5982\u679c\u7f51\u7edc\u91cc\u6709\u4e9b\u5730\u5740\u662f\u4e13\u95e8\u7528\u6765\u4f5c\u670d\u52a1\u5668\u6216\u8005\u5176\u4ed6\u4f5c\u7528\uff0c\u8fd9\u4e9b\u5730\u5740\u5f53\u7136\u4e0d\u60f3\u88ab\u5206\u914d\u8fdb\u53bb\uff0c\u5728DHCP\u914d\u7f6e\u7684\u5730\u5740\u6c60\u7684\u65f6\u5019\u5c31\u53ef\u4ee5\u6392\u9664\u8fd9\u4e9b\u5730\u5740\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>dhcp server excluded-ip-address 172.16.12.200 172.16.12.210---\u6392\u9664172.16.12.200-210<\/code><\/pre>\n\n\n\n<p>\u5f53\u7136\u6211\u4eec\u4e5f\u53ef\u4ee5\u628a\u7279\u5b9a\u7684IP\u5730\u5740\u4fdd\u7559\u7ed9\u5bf9\u5e94\u7684MAC\u5730\u5740\u7684\u8bbe\u5907\u4f7f\u7528\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-large-font-size\">DHCP\u63e1\u624b\u548c\u7f51\u7edc\u6a21\u578b<\/li>\n<\/ul>\n\n\n\n<p>\u73b0\u5728\u6211\u4eec\u53ef\u4ee5\u6765\u770b\u770bDHCP\u662f\u5982\u4f55\u5de5\u4f5c\u7684\u4e86\u3002<\/p>\n\n\n\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/49c976d6-b3bf-4feb-8722-1fa1962cff21.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  fetchpriority=\"high\" decoding=\"async\" width=\"500\" height=\"181\" class=\"wp-image-381\" style=\"width: 500px;\" data-original=\"https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/49c976d6-b3bf-4feb-8722-1fa1962cff21.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"  sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/div><br>\u5047\u8bbe\u8fd9\u91cc\u6709\u4fe9\u53f0\u8bbe\u5907\u548c\u4e00\u4e2a\u8def\u7531\u5668\u4ece\u8fd9\u91cc\u7684\u7f51\u7edc\u6765\u770b\u5f88\u660e\u663e\u90fd\u5904\u4e8e\u540c\u4e00\u4e2a\u5c40\u57df\u7f51\u91cc\u9762\u3002<\/p>\n\n\n\n<p>\u73b0\u5728\u53c8\u6765\u4e86\u4e00\u53f0\u65b0\u7684\u8bbe\u5907\u4e5f\u60f3\u4e0a\u7f51\uff0c\u5f53\u8fd9\u53f0\u8bbe\u5907\u63d2\u5165\u7f51\u7ebf\u4e5f\u60f3\u83b7\u53d6ip\u5730\u5740\u7684\u65f6\u5019\uff0c\u8fd9\u65f6\u8fd9\u53f0\u8bbe\u5907\u5b9e\u9645\u4e0a\u4ec0\u4e48\u4fe1\u606f\u90fd\u6ca1\u6709\uff0c\u867d\u7136\u6211\u4eec\u4ece\u7f51\u7ebf\u6765\u770b\u77e5\u9053\u8def\u7531\u5668\u662fDHCP\u670d\u52a1\u5668\uff0c\u4f46\u662f\u65b0\u8bbe\u5907\u6539\u53d8\u4e0d\u77e5\u9053\u8fd9\u91cc\u5934\u7a76\u7adf\u54ea\u4e2a\u662fDHCP\u670d\u52a1\u5668\u56e0\u6b64\u65b0\u8bbe\u5907\u9700\u8981DHCP Discover\u4e5f\u5c31\u662f\u53d1\u73b0\u4e0e\u5bfb\u627eDHCP\u670d\u52a1\u5668\u7684\u5b58\u5728\uff0c\u90a3DHCP Discover\u8fd9\u4e00\u6b65\u5c31\u5fc5\u987b\u8981\u53d1\u9001\u6570\u636e\u51fa\u53bb\u3002<br>\u4ece\u7f51\u7edc\u6a21\u578b\u6765\u770bDHCP\u662f\u51fa\u4e8e\u5e94\u7528\u5c42\u7684\uff0c\u4e5f\u5c31\u662f\u8bf4DHCP Discover\u5b9e\u9645\u4e0a\u662f\u5e94\u7528\u5c42\u62a5\u6587\uff0c\u65e2\u7136\u57fa\u4e8e\u6700\u4e0a\u5c42\uff0c\u90a3\u4e48\u7f51\u7edc\u6a21\u578b\u4e0b\u5c42\u7684\u4fe1\u606f\u4e00\u5b9a\u662f\u8981\u6709\u7684\uff0cDHCP\u5728\u4f20\u8f93\u5c42\u91cc\u4f7f\u7528\u7684\u662fUDP\u534f\u8bae\uff0c<strong>\u4f20\u8f93\u5c42<\/strong>\u4e2d\u4e00\u4e2a\u91cd\u8981\u7684\u534f\u8bae\u5c31\u662f\u7aef\u53e3\u4e86\uff0c\u5176\u4e2d\u5ba2\u6237\u7aef\u4f7f\u752868\u7aef\u53e3\uff0c\u670d\u52a1\u7aef\u4f7f\u752867\u7aef\u53e3\u3002\u5728<strong>\u7f51\u7edc\u5c42<\/strong>\u91cc\u5c31\u662fIP\u5730\u5740\u4e86\uff0c\u6570\u636e\u5305\u6700\u57fa\u672c\u7684\u8981\u6709\u6e90IP\u5730\u5740\u548c\u76ee\u7684IP\u5730\u5740\uff0c\u4f46\u662f\u8fd9\u91cc\u5e76\u6ca1\u6709IP\u5730\u5740\uff0c\u56e0\u4e3a\u65b0\u8bbe\u5907\u672c\u6765\u5c31\u662f\u8981\u7d22\u53d6IP\u5730\u5740\uff0c\u6839\u672c\u5c31\u6ca1\u6709\u81ea\u5df1\u7684IP\u5730\u5740\uff0c\u800c\u4e14\u65b0\u8bbe\u5907\u5c31\u662f\u8981\u5bfb\u627eDHCP\u670d\u52a1\u5668\u5730\u5740\uff0c\u76ee\u7684IP\u5730\u5740\u66f4\u4e0d\u77e5\u9053\u662f\u4ec0\u4e48\u3002\u4e0d\u8fc7\u6ca1\u5173\u7cfb\uff0c\u5c31ipv4\u4e3e\u4f8b\uff0c\u5f53\u4e0d\u77e5\u9053\u81ea\u5df1\u7684IP\u5730\u5740\u53ef\u4ee5\u5728\u6e90\u5730\u5740\u4e2d\u51990.0.0.0\uff0c\u5f53\u4e0d\u77e5\u9053\u76ee\u6807\u7684IP\u5730\u5740\u53ef\u4ee5\u586b\u5199255.255.255.255\uff0c\u586b\u5199\u8fd9\u4e2a\u5730\u5740\u5c31\u4f1a\u8fdb\u884c\u5e7f\u64ad\u3002\u63a5\u4e0b\u6765<strong>\u6570\u636e\u94fe\u8def\u5c42<\/strong>\uff0c\u5f53\u7136\u662fMAC\u5730\u5740\uff0c\u4e5f\u9700\u8981\u6e90\u548c\u76ee\u6807\u7684MAC\u5730\u5740\uff0c\u65b0\u8bbe\u5907\u5f53\u7136\u77e5\u9053\u81ea\u5df1\u7684\u539fMAC\u5730\u5740\uff0c\u4f46\u662f\u76ee\u6807\u7684MAC\u5730\u5740\u662f\u4e0d\u77e5\u9053\u7684\uff0c\u56e0\u6b64\u8fd9\u91cc\u548cIP\u5730\u5740\u662f\u540c\u6837\u7684\u9053\u7406\uff0c\u586b\u5199MAC\u5e7f\u64ad\u5730\u5740ff:ff:ff:ff:ff:ff<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-2-1024x500.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" width=\"1024\" height=\"500\" data-original=\"https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-2-1024x500.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-462\"  sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p>DHCP Discover\u8fd9\u4e00\u6b65\u5b8c\u6210\u4ee5\u540e\uff0c\u5982\u679c\u6b64\u65f6\u7f51\u7edc\u4e2d\u6709DHCP\u670d\u52a1\u5668\u5b58\u5728\u5c31\u4f1a\u8fdb\u884c\uff0c\u4e5f\u5c31\u662f\u8fdb\u884c<strong>DHCP Offer<\/strong>\u3002<br>\u8fd9\u4e00\u6b65DHCP\u56de\u63d0\u4f9b\u4e0a\u7f51\u6240\u9700\u7684\u914d\u7f6e\u4fe1\u606f\uff0c\u6700\u57fa\u672c\u7684\u5c31\u662fIP\u5730\u5740\uff0c\u5b50\u7f51\u63a9\u7801\uff0c\u7f51\u5173\u548cDNS\u670d\u52a1\u5668\u5730\u5740\u3002\u53e6\u5916\u8fd8\u6709\u4e2a\u7279\u522b\u91cd\u8981\u7684\u4fe1\u606f\u4e5f\u662f\u5728\u8fd9\u65f6\u5019\u53d1\u9001\u7684\uff0c\u5c31\u662fIP\u5730\u5740\u7684\u79df\u671f\uff0c\u8fc7\u4e86\u8bbe\u7f6e\u7684\u65f6\u95f4\u5c31\u4f1a\u8fc7\u671f\uff0c\u56e0\u6b64\u5f53\u8bbe\u5907\u7684\u79df\u671f\u5230\u8fbe50%\u65f6\uff08T1\uff09\uff0c\u5c06\u4f1a\u53d1\u9001<strong>DHCP REQUEST<\/strong>\u62a5\u6587\u91cd\u65b0\u7eed\u79df\uff0c\u5982\u679c\u670d\u52a1\u5668\u54cd\u5e94\u4e86<strong>DHCP ACK<\/strong>\u62a5\u6587\uff0c\u90a3\u4e48\u79df\u671f\u6210\u529f\u66f4\u65b0\uff0c\u4ece\u96f6\u5f00\u59cb\u91cd\u65b0\u8ba1\u7b97\u3002\u5982\u679c\u5ba2\u6237\u7aef\u6536\u5230<strong>DHCP NAK<\/strong>\u62a5\u6587\uff0c\u6216\u8005\u5728T1\u65f6\u95f4\u5185\u6ca1\u6709\u6536\u5230\u4efb\u4f55\u54cd\u5e94\uff0c\u5b83\u5c06\u91cd\u65b0\u5f00\u59cb\u4e00\u4e2a\u65b0\u7684DHCP\u53d1\u73b0\u8fc7\u7a0b\uff0c\u53d1\u9001<strong>DHCP DISCOVER<\/strong>\u62a5\u6587\u6765\u8bf7\u6c42\u4e00\u4e2a\u65b0\u7684IP\u5730\u5740\u3002<br><strong>DHCP Offer<\/strong>\u62a5\u6587\u5728\u4f20\u8f93\u5c42\u91cc\u540c\u6837\u4f7f\u7528UDP\u534f\u8bae\uff0c\u4e0d\u8fc7\u6e90\u548c\u76ee\u6807\u7aef\u53e3\u53f7\u53cd\u4e86\u8fc7\u6765\u3002\u7f51\u7edc\u5c42\u7684\u8bdd\u5c31\u66f4\u597d\u7406\u89e3\u4e86\uff0c\u56e0\u4e3a\u8def\u7531\u5668\u80af\u5b9a\u6709\u81ea\u5df1\u7684IP\u5730\u5740\uff0c \u800c\u4e14\u8def\u7531\u5668\u5728\u8fd9\u4e00\u6b65\u4f1a\u521d\u6b21\u63d0\u4f9bIP\u5730\u5740\uff0c\u56e0\u6b64\u6e90\u548c\u76ee\u6807\u7684IP\u5730\u5740\u90fd\u53ef\u4ee5\u586b\u5199\u5728\u6570\u636e\u5305\u4e0a\u3002\u6570\u636e\u94fe\u8def\u5c42\u8fd9\u91cc\u540c\u6837\u597d\u7406\u89e3\uff0c\u6e90MAC\u5730\u5740\u5c31\u662f\u8def\u7531\u5668\uff0c\u76ee\u7684MAC\u5730\u5740\u5c31\u662f\u521a\u521a\u65b0\u8bbe\u5907\u63d0\u4f9b\u7684\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-5-1024x476.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" width=\"1024\" height=\"476\" data-original=\"https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-5-1024x476.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-466\"  sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p>\u90a3DHCP\u7684\u5de5\u4f5c\u5c31\u5df2\u7ecf\u5b8c\u6210\u4e86\u561b\uff1f<br>\u5f53\u7136\u662f\u4e0d\u884c\u7684\uff0c\u8bd5\u60f3\u4e00\u4e0b\u5f53\u4e00\u4e2a\u5c40\u57df\u7f51\u91cc\u9762\u6709\u4e24\u53f0DHCP\u670d\u52a1\u5668\uff0c\u4ed6\u4eec\u540c\u65f6\u63d0\u4f9bOffer\uff0c\u90a3\u65b0\u8bbe\u5907\u53ea\u80fd\u9009\u4e00\u4e2a\uff0c\u6240\u4ee5\u8fdb\u5165\u4e0b\u4e00\u6b65\uff0cDHCP Request\u3002<br>DHCP Request\u4e5f\u5c31\u662f\u9009\u62e9\u597d\u4e86\u5e76\u6b63\u5f0f\u8fdb\u884c\u8bf7\u6c42\u56e0\u4e3a\u4e0a\u4e00\u6b65DHCP\u670d\u52a1\u5668\u5df2\u7ecf\u63d0\u4f9b\u4e86IP\u5730\u5740\uff0c\u5982\u679c\u786e\u5b9a\u8981\u8fd9\u4e2aIP\u5730\u5740\uff0c\u5c31\u9700\u8981\u5728\u62a5\u6587\u91cc\u8bf4\u660e\uff0c\u6211\u9700\u8981\u8fd9\u4e2aIP\u5730\u5740\u3002<br>\u56e0\u4e3a\u65b0\u8bbe\u5907\u8fd8\u6ca1\u6709\u5b8c\u5168\u5141\u8bb8\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e2aIP\u5730\u5740\uff0c\u6240\u4ee5\u5728\u7f51\u7edc\u5c42\u91cc\u4f9d\u65e7\u4f7f\u75280.0.0.0\u6765\u4f5c\u4e3a\u6e90IP\u5730\u5740\uff0c\u76ee\u6807IP\u5730\u5740\u4e5f\u4f7f\u7528\u5e7f\u64ad\u5730\u5740\uff0c\u8fd9\u91cc\u53ef\u80fd\u5927\u5bb6\u4f1a\u6709\u7591\u60d1\uff1a\u65b0\u8bbe\u5907\u5df2\u7ecf\u5f97\u5230DHCP\u670d\u52a1\u5668\u7684\u4f4d\u7f6e\u4fe1\u606f\u4e86\uff0c\u76f4\u63a5\u5355\u64ad\u53d1\u9001\u7ed9\u8fd9\u4e2aDHCP\u670d\u52a1\u5668\u4e0d\u5c31\u5b8c\u4e86\u5417\uff1f\u4e3a\u4ec0\u4e48\u8fd8\u7528\u5e7f\u64ad\u5730\u5740\uff1f\u5b9e\u9645\u4e0a\u7f51\u7edc\u91cc\u53ef\u80fd\u8fd8\u5b58\u5728\u5176\u4ed6DHCP\u670d\u52a1\u5668\uff0c\u56e0\u6b64\u7528\u5e7f\u64ad\u53ef\u4ee5\u544a\u8bc9\u6240\u6709\u8bbe\u5907\u5df2\u7ecf\u9009\u62e9\u4e86\u54ea\u4e2a\u670d\u52a1\u5668\u3002<br>\u540c\u7406\u6570\u636e\u94fe\u8def\u5c42\u7684MAC\u5730\u5740\u4e5f\u662f\u548cDiscover\u9636\u6bb5\u662f\u4e00\u6837\u7684\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-3-1024x477.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"477\" data-original=\"https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-3-1024x477.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-464\"  sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p>\u5982\u679cDHCP\u670d\u52a1\u5668\u6536\u5230\u4e86\u65b0\u8bbe\u5907\u53d1\u6765\u7684DHCP Request\u3002\u5c31\u8981\u53d1\u9001DHCP ACK\u6765\u786e\u8ba4\u65b0\u8bbe\u5907\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e2aIP\u5730\u5740\u4e86\uff0c\u8fd9\u4e00\u6b65\u7684\u6240\u6709\u6570\u636e\u4fe1\u606f\u57fa\u672c\u5c31\u548cDHCP Offer\u662f\u4e00\u6837\u7684\u4e86\u3002<br><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-4-1024x475.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"475\" data-original=\"https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-4-1024x475.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-465\"  sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p>\u90a3\u4e48\u73b0\u5728\u65b0\u8bbe\u5907\u5c31\u53ef\u4ee5\u5f00\u59cb\u4e0a\u7f51\u4e86\uff01<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-6-1024x543.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"543\" data-original=\"https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-6-1024x543.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-469\"  sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<ul class=\"wp-block-list has-large-font-size\">\n<li class=\"has-large-font-size\">\u4e09\u79cd\u90e8\u7f72\u65b9\u5f0f<\/li>\n<\/ul>\n\n\n\n<ol class=\"wp-block-list\">\n<li class=\"has-medium-font-size\">\u57fa\u4e8e\u63a5\u53e3\u7684\u90e8\u7f72\u65b9\u5f0f\uff1a\u9002\u7528\u4e8e\u4e2d\u5c0f\u89c4\u6a21\u7684\u7f51\u7edc\uff08\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u5728\u7528\u4e00\u4e2a\u5c40\u57df\u7f51\uff09<br><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/aeadd2d2-455e-46ee-ba18-2f38609bbce6.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"215\" class=\"wp-image-378\" style=\"width: 500px;\" data-original=\"https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/aeadd2d2-455e-46ee-ba18-2f38609bbce6.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"  sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/div>\n<ul class=\"wp-block-list\">\n<li class=\"has-medium-font-size\">\u57fa\u672c\u914d\u7f6e\uff1a\n<ul class=\"wp-block-list\">\n<li class=\"has-medium-font-size\">AR1\uff1a<br><code>sys<br>sys AR1<br>int g0\/0\/0<br>ip add 192.168.10.1 24<\/code><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li class=\"has-medium-font-size\">DHCP\n<ul class=\"wp-block-list\">\n<li class=\"has-medium-font-size\">AR1\uff1a<br><code>sys<br>dhcp enable-------------------------\u5168\u5c40\u4f7f\u80fddhcp<br>int g0\/0\/0<br>dhcp select interface----------------\u6253\u5f00\u57fa\u4e8e\u7aef\u53e3\u7684dhcp<\/code><\/li>\n\n\n\n<li class=\"has-medium-font-size\">PC1<br>\u6253\u5f00dhcp\u529f\u80fd<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li class=\"has-medium-font-size\">\u9a8c\u8bc1\n<ul class=\"wp-block-list\">\n<li class=\"has-medium-font-size\">AR1\uff1a<br><code>dis ip pool<br>Pool-name : GigabitEthernet0\/0\/0<br>Pool-No : 0<br>Position : Interface Status : Unlocked<br>Gateway-0 : 192.168.10.1<br>Mask : 255.255.255.0<br>VPN instance : --<br>IP address Statistic<br>Total :253<br>Used :1 Idle :252<br>Expired :0 Conflict :0 Disable :0<\/code><\/li>\n\n\n\n<li class=\"has-medium-font-size\">PC1\uff1a<br><code>PC&gt;ipconfig<br>Link local IPv6 address\u2026\u2026\u2026..: fe80::5689:98ff:fec7:1aa3<br>IPv6 address\u2026\u2026\u2026\u2026\u2026\u2026\u2026.: :: \/ 128<br>IPv6 gateway\u2026\u2026\u2026\u2026\u2026\u2026\u2026.: ::<br>IPv4 address\u2026\u2026\u2026\u2026\u2026\u2026\u2026.: 192.168.10.254<br>Subnet mask\u2026\u2026\u2026\u2026\u2026\u2026\u2026..: 255.255.255.0<br>Gateway\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026: 192.168.10.1<br>Physical address\u2026\u2026\u2026\u2026\u2026\u2026: 54-89-98-C7-1A-A3<br>DNS server\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026:<\/code><br><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u57fa\u4e8e\u5168\u5c40\u7684\u90e8\u7f72\u65b9\u5f0f<br><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/49c976d6-b3bf-4feb-8722-1fa1962cff21.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  fetchpriority=\"high\" decoding=\"async\" width=\"500\" height=\"181\" class=\"wp-image-381\" style=\"width: 500px;\" data-original=\"https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/49c976d6-b3bf-4feb-8722-1fa1962cff21.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"  sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/div>\n<ul class=\"wp-block-list\">\n<li>\u57fa\u672c\u914d\u7f6e\uff1a\n<ul class=\"wp-block-list\">\n<li>AR1\uff1a<br><code>sys<br>sys AR1<br>int g0\/0\/0<br>ip add 192.168.10.1 24<\/code><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>DHCP\n<ul class=\"wp-block-list\">\n<li>AR1\uff1a<br><code>sys<br>dhcp enable---------------------------------\u5168\u5c40\u4f7f\u80fddhcp<br>ip pool 1-----------------------------------\u521b\u5efa\u5730\u5740\u6c60<br>network 192.168.10.0 mask 24----------------\u8bbe\u7f6e\u5730\u5740\u6c60\u7684\u8303\u56f4<br>gatway-list 192.168.10.1--------------------\u8bbe\u7f6e\u9ed8\u8ba4\u7f51\u5173<br>lease day 3---------------------------------\u8bbe\u7f6e\u79df\u671f\u4e3a3\u5929<br>dns-list 8.8.8.8----------------------------\u8bbe\u7f6e\u9ed8\u8ba4DNS<br>excluded-ip-address 192.168.10.254----------\u6392\u966410.254\u5730\u5740<br>int g0\/0\/0<br>dhcp select global--------------------------\u6253\u5f00\u57fa\u4e8e\u5168\u5c40\u7684dhcp<\/code><\/li>\n\n\n\n<li>PC1<br>\u6253\u5f00dhcp\u529f\u80fd<\/li>\n\n\n\n<li>PC2<br>\u6253\u5f00dhcp\u529f\u80fd<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u9a8c\u8bc1\n<ul class=\"wp-block-list\">\n<li>AR1<br><code>dis ip pool<br>Pool-name : 1<br>Pool-No : 0<br>Position : Local Status : Unlocked<br>Gateway-0 : 192.168.10.2<br>Gateway-1 : 192.168.10.1<br>Mask : 255.255.255.0<br>VPN instance : --<br>IP address Statistic<br>Total :252<br>Used :2 Idle :249<br>Expired :0 Conflict :0 Disable :1<\/code><\/li>\n\n\n\n<li>PC1<br><code>PC&gt;ipconfig<br>Link local IPv6 address\u2026\u2026\u2026..: fe80::5689:98ff:fe34:2ca1<br>IPv6 address\u2026\u2026\u2026\u2026\u2026\u2026\u2026.: :: \/ 128<br>IPv6 gateway\u2026\u2026\u2026\u2026\u2026\u2026\u2026.: ::<br>IPv4 address\u2026\u2026\u2026\u2026\u2026\u2026\u2026.: 192.168.10.253<br>Subnet mask\u2026\u2026\u2026\u2026\u2026\u2026\u2026..: 255.255.255.0<br>Gateway\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026: 192.168.10.1<br>Physical address\u2026\u2026\u2026\u2026\u2026\u2026: 54-89-98-34-2C-A1<br>DNS server\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026: 8.8.8.8<\/code><\/li>\n\n\n\n<li>PC2<br><code>PC&gt;ipconfig<br>Link local IPv6 address\u2026\u2026\u2026..: fe80::5689:98ff:fe8b:4f04<br>IPv6 address\u2026\u2026\u2026\u2026\u2026\u2026\u2026.: :: \/ 128<br>IPv6 gateway\u2026\u2026\u2026\u2026\u2026\u2026\u2026.: ::<br>IPv4 address\u2026\u2026\u2026\u2026\u2026\u2026\u2026.: 192.168.10.252<br>Subnet mask\u2026\u2026\u2026\u2026\u2026\u2026\u2026..: 255.255.255.0<br>Gateway\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026: 192.168.10.1<br>Physical address\u2026\u2026\u2026\u2026\u2026\u2026: 54-89-98-8B-4F-04<br>DNS server\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026: 8.8.8.8<\/code><br><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u57fa\u4e8e\u4e2d\u7ee7\u7684\u90e8\u7f72\u65b9\u5f0f<br><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/c1b2d26ff219bb8879c24e7886a21848.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"278\" class=\"wp-image-427\" style=\"width: 500px;\" data-original=\"https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/c1b2d26ff219bb8879c24e7886a21848.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\"  sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/div>\n<ul class=\"wp-block-list\">\n<li>\u57fa\u672c\u914d\u7f6e\uff1a\n<ul class=\"wp-block-list\">\n<li>AR1\uff1a<br><code>sys<br>sys AR1<br>int g0\/0\/0<br>ip add 34.1.1.5 24<\/code><\/li>\n\n\n\n<li>AR2\uff1a<br><code>sys<br>sys AR2<br>int g0\/0\/0<br>ip add 34.1.1.4 24<br>int g0\/0\/1<br>ip add 12.1.1.3 24<\/code><\/li>\n\n\n\n<li>AR3\uff1a<br><code>sys<br>sys AR3<br>int g0\/0\/0<br>ip add 12.1.1.2 24<br>int g0\/0\/1<br>ip add 192.168.1.254 24<br>int g2\/0\/0<br>ip add 192.168.2.254 24<\/code><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u9759\u6001\u8def\u7531\uff1a\n<ul class=\"wp-block-list\">\n<li>AR1\uff1a<br><code>ip route-static 192.168.1.0 255.255.255.0 34.1.1.4 # \u4e0b\u4e00\u8df3\u4e3aAR2\u7684GE0\/0\/0 ip route-static 192.168.2.0 255.255.255.0 34.1.1.4<\/code><\/li>\n\n\n\n<li>AR2\uff1a<br><code>ip route-static 192.168.1.0 255.255.255.0 12.1.1.2 # \u4e0b\u4e00\u8df3\u4e3aAR3\u7684GE0\/0\/0 ip route-static 192.168.2.0 255.255.255.0 12.1.1.2<\/code><\/li>\n\n\n\n<li>AR3:<br><code>ip route-static 34.1.1.0 255.255.255.0 12.1.1.3 # \u4e0b\u4e00\u8df3\u4e3aAR2\u7684GE0\/0\/1<\/code><\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>DHCP\uff1a\n<ul class=\"wp-block-list\">\n<li>AR1:<br><code>Dhcp enable<br>#<br>ip pool vlan12<br>gateway-list 192.168.1.254<br>network 192.168.1.0 mask 255.255.255.0<br>static-bind ip-address 192.168.1.66 mac-address 5489-9892-5CB3-----IP\u7ed1\u5b9amac\u5730\u5740<br>lease day 2 hour 0 minute 0<br>dns-list 114.114.114.114 8.8.8.8<br>#<br>ip pool vlan23<br>gateway-list 192.168.2.254<br>network 192.168.2.0 mask 255.255.255.0<br>lease day 2 hour 0 minute 0<br>dns-list 114.114.114.114 8.8.8.8<br>#<br>interface GigabitEthernet0\/0\/0<br>description link-to AR2 g0\/0\/0----------------------\u6ce8\u91ca\u4f5c\u7528<br>dhcp select global<\/code><\/li>\n\n\n\n<li>AR2\uff1a<br><code>Dhcp enable<br>interface GigabitEthernet0\/0\/1<br>dhcp select relay---------------------------\u4e2d\u7ee7\u6a21\u5f0f<br>dhcp relay server-ip 34.1.1.5<\/code><\/li>\n\n\n\n<li>AR3\uff1a<br><code>Dhcp enable<br>interface GigabitEthernet0\/0\/1<br>dhcp select relay---------------------------\u4e2d\u7ee7\u6a21\u5f0f<br>dhcp relay server-ip 34.1.1.5<br>#<br>interface GigabitEthernet2\/0\/0<br>dhcp select relay---------------------------\u4e2d\u7ee7\u6a21\u5f0f<br>dhcp relay server-ip 34.1.1.5<\/code><\/li>\n\n\n\n<li>PC1<br>\u6253\u5f00dhcp\u529f\u80fd<\/li>\n\n\n\n<li>PC2<br>\u6253\u5f00dhcp\u529f\u80fd<\/li>\n\n\n\n<li>PC3<br>\u6253\u5f00dhcp\u529f\u80fd<\/li>\n\n\n\n<li>PC4<br>\u6253\u5f00dhcp\u529f\u80fd<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u9a8c\u8bc1\n<ul class=\"wp-block-list\">\n<li>PC1\uff1a<br>PC&gt;ipconfig<br>Link local IPv6 address\u2026\u2026\u2026..: fe80::5689:98ff:fe92:5cb3<br>IPv6 address\u2026\u2026\u2026\u2026\u2026\u2026\u2026.: :: \/ 128<br>IPv6 gateway\u2026\u2026\u2026\u2026\u2026\u2026\u2026.: ::<br>IPv4 address\u2026\u2026\u2026\u2026\u2026\u2026\u2026.: 192.168.1.66&#8212;&#8212;&#8212;&#8212;\u7ed1\u5b9amac\u4e3a1.66<br>Subnet mask\u2026\u2026\u2026\u2026\u2026\u2026\u2026..: 255.255.255.0<br>Gateway\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026: 192.168.1.254<br>Physical address\u2026\u2026\u2026\u2026\u2026\u2026: 54-89-98-92-5C-B3<br>DNS server\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026: 114.114.114.114<br>8.8.8.8<\/li>\n\n\n\n<li>PC3:<br>PC&gt;ipconfig<br>Link local IPv6 address\u2026\u2026\u2026..: fe80::5689:98ff:fe0b:2f8<br>IPv6 address\u2026\u2026\u2026\u2026\u2026\u2026\u2026.: :: \/ 128<br>IPv6 gateway\u2026\u2026\u2026\u2026\u2026\u2026\u2026.: ::<br>IPv4 address\u2026\u2026\u2026\u2026\u2026\u2026\u2026.: 192.168.2.253<br>Subnet mask\u2026\u2026\u2026\u2026\u2026\u2026\u2026..: 255.255.255.0<br>Gateway\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026: 192.168.2.254<br>Physical address\u2026\u2026\u2026\u2026\u2026\u2026: 54-89-98-0B-02-F8<br>DNS server\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026: 114.114.114.114<br>8.8.8.8<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n\n\n\n<ul class=\"wp-block-list\">\n<li class=\"has-x-large-font-size\">\u6293\u4e2a\u5305<\/li>\n<\/ul>\n\n\n\n<p>\u7136\u540e\u6211\u4eec\u6765\u6293\u4e2a\u5305\u6765\u9a8c\u8bc1\u662f\u5426\u771f\u6b63\u7406\u89e3DHCP\u7684\u539f\u7406\uff0c\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u5b9e\u9645\u7684\u6293\u5305\u4fe1\u606f\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-7.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"944\" height=\"104\" data-original=\"https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-7.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-472\"  sizes=\"(max-width: 944px) 100vw, 944px\" \/><\/div><\/figure>\n\n\n\n<p>\u9996\u5148\u6620\u5165\u773c\u5e18\u7684\u662fDHCP\u63e1\u624b\u76844\u4e2a\u6b65\u9aa4Discover\uff0cOffer\uff0cRequest\u548cACK\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-8.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"98\" data-original=\"https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-8.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-473\"  sizes=\"(max-width: 764px) 100vw, 764px\" \/><\/div><\/figure>\n\n\n\n<p>\u54b1\u4eec\u5148\u770b\u770b\u7b2c\u4e00\u6b65Discover\uff0c\u65b0\u8bbe\u5907\u60f3\u8981\u79df\u7528IP\uff0c\u4e5f\u4e0d\u77e5\u9053\u8c01\u662fDHCP\u670d\u52a1\u5668\uff0c\u56e0\u6b64\u662f\u4ece0.0.0.0\u53d1\u9001\u5e76\u4e14255.255.255.255\u5e7f\u64ad\uff0cMAC\u5730\u5740\u5c31\u662f\u65b0\u8bbe\u5907\u7684\u5730\u5740\u4f5c\u4e3a\u6e90\uff0c\u5e76\u4e14\u4f7f\u7528MAC\u7684\u5e7f\u64ad\u5730\u5740\u4e3a\u76ee\u6807\u5730\u5740\uff0c\u4f20\u8f93\u5c42\u4f7f\u7528UDP\uff0c\u4ece68\u7aef\u53e3\u53d1\u9001\u523067\u7aef\u53e3\u3002\u4f46\u662f\u5728\u5e94\u7528\u5c42\u65b9\u9762\u9700\u8981\u8bb2\u89e3\u7684\u4e1c\u897f\u5c31\u6bd4\u8f83\u591a\u4e86\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-9.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"532\" height=\"444\" data-original=\"https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-9.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-474\"  sizes=\"(max-width: 532px) 100vw, 532px\" \/><\/div><\/figure>\n\n\n\n<p>\u8fd9\u91cc\u51fa\u73b0\u4e86\u4e00\u4e2a\u7279\u6b8a\u7684ID\u503cTransaction ID\uff0c\u4e8b\u7269ID\u8fd9\u4e2aID\u503c\u662f\u7531\u5ba2\u6237\u7aef\u63d0\u4f9b\u7684\u968f\u673a\u6570\u5982\u679c\u6709\u5176\u4ed6\u8bbe\u5907\u4e5f\u5728DHCP\u4ea4\u4e92\u6709\u8fd9\u4e2aTransaction ID\u5c31\u80fd\u66f4\u597d\u5224\u65ad\u662f\u8fd9\u4e2a\u8bbe\u5907\u7684\u8bf7\u6c42\u4e86\u3002<br>\u56e0\u4e3aDHCP\u662f\u57fa\u4e8eBootstrap Protocol\u53d1\u5c55\u51fa\u6765\u7684\uff0c\u56e0\u6b64\u5728\u62a5\u6587\u91cc\u4f1a\u770b\u5230Bootp\u6216\u8005Boot\u8fd9\u6837\u7684\u5b57\u6837\u3002<br>\u8fd9\u91ccBootp flags\u8bbe\u7f6e\u4e3aUnicast\u7684\u610f\u601d\u662f\u670d\u52a1\u5668\u53ef\u4ee5\u5355\u64ad\u53d1\u9001\u7ed9\u65b0\u8bbe\u5907\u3002\u56e0\u6b64\u6211\u4eec\u5728DHCP Offer\u8fd9\u4e00\u6b65\u91cc\u5c31\u80fd\u770b\u5230\u6ca1\u6709\u4f7f\u7528\u5e7f\u64ad\u5730\u5740\u3002<br>\u4e0b\u9762\u591a\u5904\u90fd\u662f\u586b\u51990.0.0.0\uff0c\u5f53\u7136\u662f\u56e0\u4e3a\u65b0\u8bbe\u5907\u5565\u90fd\u6ca1\u3002<br>\u4e4b\u540e\u7684\u91cd\u70b9\u5728Option\u9009\u9879\u91cc\u9762\uff0c\u5176\u4e2d\u7684\u53c2\u6570\u8bf7\u6c42\u5217\u8868\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-10.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"652\" height=\"224\" data-original=\"https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-10.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-475\"  sizes=\"(max-width: 652px) 100vw, 652px\" \/><\/div><\/figure>\n\n\n\n<p>\u5ba2\u6237\u7aef\u4f60\u60f3\u8981\u4ec0\u4e48\u4fe1\u606f\u53ef\u4ee5\u4e00\u6b21\u6027\u5728\u8fd9\u91cc\u8bf4\u660e\uff0c\u4f46\u662fDHCP\u670d\u52a1\u5668\u5e76\u4e0d\u4e00\u5b9a\u4f1a\u5168\u90e8\u63d0\u4f9b\u3002<br>\u63a5\u4e0b\u6765\u662fDHCP Offer\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-11.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"982\" height=\"190\" data-original=\"https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-11.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-476\"  sizes=\"(max-width: 982px) 100vw, 982px\" \/><\/div><\/figure>\n\n\n\n<p>\u56e0\u4e3aDHCP\u670d\u52a1\u5668\u5df2\u7ecf\u62df\u5b9a\u4e86\u4e00\u4e2aIP\u5730\u5740\u7ed9\u65b0\u8bbe\u5907\uff0c\u800c\u4e14\u4e0a\u4e00\u6b65\u5df2\u7ecf\u8bf4\u4e86\u53ef\u4ee5\u4f7f\u7528\u5355\u64ad\uff0c\u56e0\u6b64IP\u5730\u5740\u8fd9\u91cc\u53ef\u4ee5\u5c31\u5355\u5bf9\u5355\u8fdb\u884c\u53d1\u9001\uff0c\u4f46\u662f\u6ce8\u610f\u4e86\uff0c\u5b9e\u9645\u4e0a\u670d\u52a1\u5668\u662f\u6709\u80fd\u529b\u7528\u5e7f\u64ad\u5f62\u5f0f\u53d1\u9001DHCP Offer\u7684\u3002<br>\u7136\u540e\u6211\u4eec\u56de\u5230\u62a5\u6587\u4e2d\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-12.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"664\" height=\"584\" data-original=\"https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-12.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-477\"  sizes=\"(max-width: 664px) 100vw, 664px\" \/><\/div><\/figure>\n\n\n\n<p>\u8fd9\u6b21\u7684Your\uff08client\uff09IP adress\u5c31\u586b\u5199\u597d\u4e86\uff0c\u4e5f\u5c31\u662f\u670d\u52a1\u5668\u7ed9\u5ba2\u6237\u7684IP\u5730\u5740\u3002<br>Next server IP address\uff1a\u5ba2\u6237\u7aef\u5e76\u4e0d\u662f\u53ea\u80fd\u627e\u4e00\u4e2aDHCP\u670d\u52a1\u5668\uff0c\u8fd8\u53ef\u4ee5\u627e\u7b2c\u4e8c\u4e2a\u670d\u52a1\u5668\uff0c\u4f46\u662f\u8fd9\u6b21\u5b9e\u9a8c\u4e2d\u53ea\u6709\u4e00\u4e2a\u6240\u4ee5\u4e3a\u672c\u670d\u52a1\u5668\u7684IP\u5730\u5740<br>Relay agent IP address\uff1a\u672c\u6b21\u5b9e\u9a8c\u4e2d\u5e76\u6ca1\u6709\u4e2d\u7ee7DHCP\u670d\u52a1\u5668\u6240\u4ee5\u8fd9\u91cc\u51990.0.0.0<br>\u63a5\u4e0b\u6765\u5c31\u662fOption\u4fe1\u606f\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-13.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"424\" height=\"182\" data-original=\"https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-13.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-480\"  sizes=\"(max-width: 424px) 100vw, 424px\" \/><\/div><\/figure>\n\n\n\n<p>\u91cc\u9762\u5b50\u7f51\u63a9\u7801,IP\u5730\u5740\uff0c\u7eed\u79df\u65f6\u95f4\u7b49\u7b49\uff0c\u5ba2\u6237\u7aef\u8981\u7684\uff0c\u670d\u52a1\u5668\u5e76\u6ca1\u6709\u5168\u90e8\u63d0\u4f9b\uff0c\u8fd9\u91cc\u9700\u8981\u6ce8\u610f\u4e00\u4e0b\u3002<br>\u63a5\u4e0b\u6765\u5c31\u662fDHCP Request\uff1a<br><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-14.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"750\" height=\"568\" data-original=\"https:\/\/asahiya.cn\/wp-content\/uploads\/2025\/03\/image-14.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-481\"  sizes=\"(max-width: 750px) 100vw, 750px\" \/><\/div><\/figure>\n\n\n\n<p>\u8fd9\u4e00\u6b65\u7684\u62a5\u6587\u4fe1\u606f\u548cDHCP Discover\u975e\u5e38\u76f8\u4f3c\uff0c\u57fa\u672c\u4e0a\u5c31\u662f\u590d\u5236\u7c98\u8d34\uff0c\u4f46\u662f\u5728Option\u9009\u9879\u8fd9\u91cc\u6709\u4e00\u4e2a\u91cd\u70b9\uff0c\u5c31\u662fOption:(50)Requested IP Address\uff0c\u5ba2\u6237\u7aef\u4f1a\u8bf4\u660e\u81ea\u5df1\u9009\u62e9\u597d\u7684DHCP\u670d\u52a1\u5668\uff0c\u4e00\u822c\u6765\u8bf4\u4f1a\u9009\u62e9\u7b2c\u4e00\u4efd\u6536\u5230\u5176\u62a5\u6587\u7684DHCP\u670d\u52a1\u5668\uff0c\u800c\u4e14\u53ef\u4ee5\u770b\u5230\u8fd9\u4e00\u6b65\u53c8\u7528\u4e86\u5e7f\u64ad\u5730\u5740\uff0c\u5982\u679c\u5176\u4ed6DHCP\u670d\u52a1\u5668\u6536\u5230\u540e\u4e5f\u4f1a\u77e5\u9053\u5ba2\u6237\u7aef\u9009\u62e9\u7684\u662f\u4e0d\u662f\u81ea\u5df1\u3002<br>\u53c2\u6570\u8bf7\u6c42\u5217\u8868Option:(55)Parameter Request List\u8fd9\u91cc\u4e00\u822c\u8fd8\u662f\u4f1a\u628a\u4e4b\u524d\u7684\u8bf7\u6c42\u4fe1\u606f\u590d\u5236\u8fc7\u6765\uff0cDHCP\u670d\u52a1\u5668\u4e0a\u4e00\u6b65\u5982\u679c\u6ca1\u6709\u63d0\u4f9b\uff0c\u5ba2\u6237\u7aef\u4f9d\u65e7\u60f3\u8981\u5f97\u5230\u8fd9\u4e9b\u4fe1\u606f\uff0c\u56e0\u6b64\u8fd8\u662f\u53ef\u4ee5\u5199\u4e0a\u7ee7\u7eed\u8bf7\u6c42\u7684\u3002<br>\u6700\u540e\u4e00\u6b65DHCP 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