{"id":623,"date":"2025-12-22T08:55:05","date_gmt":"2025-12-22T00:55:05","guid":{"rendered":"https:\/\/www.axeuh.com\/?p=623"},"modified":"2025-12-22T10:39:45","modified_gmt":"2025-12-22T02:39:45","slug":"%e9%85%8d%e7%bd%ae-dhcp-%e6%9c%8d%e5%8a%a1","status":"publish","type":"post","link":"https:\/\/www.axeuh.com\/index.php\/2025\/12\/22\/%e9%85%8d%e7%bd%ae-dhcp-%e6%9c%8d%e5%8a%a1\/","title":{"rendered":"\u914d\u7f6e DHCP \u670d\u52a1"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.axeuh.com\/wp-content\/uploads\/2025\/12\/f619f7e15f8b7766182a25fc2a463da1.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"865\" height=\"626\" data-original=\"https:\/\/www.axeuh.com\/wp-content\/uploads\/2025\/12\/f619f7e15f8b7766182a25fc2a463da1.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-632\"  sizes=\"auto, (max-width: 865px) 100vw, 865px\" \/><\/div><\/figure>\n<\/div>\n\n\n<div class=\"wp-block-jetpack-markdown\"><p>\u8fd9\u662f\u4e00\u4e2a\u5178\u578b\u7684\u4f01\u4e1a\u7f51\u7edc\u62d3\u6251\uff0c\u7ed3\u5408\u4e86\u4e09\u5c42\u4ea4\u6362\u673a\uff08\u5de6\u4fa7\uff09\u548c\u8def\u7531\u5668\uff08\u53f3\u4fa7\/\u6838\u5fc3\uff09\uff0c\u5e76\u5212\u5206\u4e86\u591a\u4e2aVLAN\u3002\u4e3a\u4e86\u5b9e\u73b0DHCP\u81ea\u52a8\u5206\u914dIP\u4ee5\u53ca\u5168\u7f51\u4e92\u901a\uff08\u4e92\u76f8Ping\u901a\uff09\uff0c\u6211\u4eec\u9700\u8981\u914d\u7f6e<strong>VLAN\u95f4\u8def\u7531<\/strong>\u3001<strong>OSPF\u6216\u9759\u6001\u8def\u7531<\/strong>\u4ee5\u53ca<strong>DHCP\u670d\u52a1<\/strong>\u3002<\/p>\n<p>\u4ee5\u4e0b\u662f\u9488\u5bf9\u56fe\u4e2d\u5404\u4e2a\u5173\u952e\u8bbe\u5907\u7684\u8be6\u7ec6\u914d\u7f6e\u4ee3\u7801\u3002<\/p>\n<hr>\n<h3>1. \u4e09\u5c42\u4ea4\u6362\u673a (MSW1 \/ 3560-24PS) \u914d\u7f6e<\/h3>\n<p>\u8fd9\u53f0\u8bbe\u5907\u8d1f\u8d23\u5de6\u4fa7 VLAN 10 \u548c VLAN 20 \u7684\u7f51\u5173\uff0c\u540c\u65f6\u5145\u5f53 DHCP \u670d\u52a1\u5668\uff0c\u5e76\u8d1f\u8d23\u4e0e\u53f3\u4fa7\u8def\u7531\u5668\u7684\u8fde\u63a5\u3002<\/p>\n<pre><code class=\"language-c++\">Switch&gt; enable\nSwitch# configure terminal\nSwitch(config)# hostname MSW1\n\n! \u5f00\u542fIP\u8def\u7531\u529f\u80fd\uff08\u5173\u952e\u6b65\u9aa4\uff0c\u5426\u5219\u65e0\u6cd5\u8fdb\u884cVLAN\u95f4\u8def\u7531\uff09\nMSW1(config)# ip routing\n\n! \u521b\u5efaVLAN\nMSW1(config)# vlan 10\nMSW1(config-vlan)# name DATA_PC0\nMSW1(config)# vlan 20\nMSW1(config-vlan)# name DATA_PC1\nMSW1(config)# exit\n\n! \u914d\u7f6eSVI\uff08\u865a\u62df\u63a5\u53e3\uff09\u4f5c\u4e3a\u7f51\u5173\nMSW1(config)# interface vlan 10\nMSW1(config-if)# ip address 192.168.10.254 255.255.255.0\nMSW1(config-if)# no shutdown\nMSW1(config)# interface vlan 20\nMSW1(config-if)# ip address 192.168.20.254 255.255.255.0\nMSW1(config-if)# no shutdown\nMSW1(config)# exit\n\n! \u914d\u7f6e\u8fde\u63a5\u4e0b\u65b9\u4e8c\u5c42\u4ea4\u6362\u673a\u7684\u7aef\u53e3 (Trunk)\nMSW1(config)# interface f0\/24\nMSW1(config-if)# switchport trunk encapsulation dot1q\nMSW1(config-if)# switchport mode trunk\nMSW1(config-if)# exit\n\n! \u914d\u7f6e\u8fde\u63a5\u53f3\u4fa7\u8def\u7531\u5668\u7684\u7aef\u53e3 (\u8def\u7531\u7aef\u53e3)\nMSW1(config)# interface f0\/23\nMSW1(config-if)# no switchport\nMSW1(config-if)# ip address 172.16.255.1 255.255.255.252\nMSW1(config-if)# no shutdown\nMSW1(config)# exit\n\n! \u914d\u7f6eDHCP\u5730\u5740\u6c60 (VLAN 10 \u548c 20)\nMSW1(config)# ip dhcp pool POOL_VLAN10\nMSW1(config-dhcp)# network 192.168.10.0 255.255.255.0\nMSW1(config-dhcp)# default-router 192.168.10.254\nMSW1(config-dhcp)# dns-server 8.8.8.8\n\nMSW1(config)# ip dhcp pool POOL_VLAN20\nMSW1(config-dhcp)# network 192.168.20.0 255.255.255.0\nMSW1(config-dhcp)# default-router 192.168.20.254\nMSW1(config-dhcp)# dns-server 8.8.8.8\nMSW1(config)# exit\n\n! \u914d\u7f6e\u9ed8\u8ba4\u8def\u7531\u6307\u5411\u53f3\u4fa7\u8def\u7531\u5668 (\u5b9e\u73b0\u53bb\u5f80\u53f3\u4fa7\u7f51\u7edc\u7684\u8def\u5f84)\nMSW1(config)# ip route 0.0.0.0 0.0.0.0 172.16.255.2\n\n<\/code><\/pre>\n<hr>\n<h3>2. \u5de6\u4fa7\u4e8c\u5c42\u4ea4\u6362\u673a (sw2 \/ 2960-24TT) \u914d\u7f6e<\/h3>\n<p>\u8fd9\u53f0\u4ea4\u6362\u673a\u53ea\u9700\u8981\u900f\u4f20VLAN\u4fe1\u606f\u3002<\/p>\n<pre><code class=\"language-c++\">Switch&gt; enable\nSwitch# configure terminal\nSwitch(config)# hostname SW2\n\n! \u521b\u5efaVLAN\nSwitch(config)# vlan 10\nSwitch(config)# vlan 20\n\n! \u914d\u7f6e\u4e0a\u884c\u7aef\u53e3 (\u8fde\u63a5MSW1)\nSwitch(config)# interface f0\/24\nSwitch(config-if)# switchport mode trunk\n\n! \u914d\u7f6e\u63a5\u5165\u7aef\u53e3 (\u8fde\u63a5PC)\n! \u5047\u8bbe PC0 \u63a5 f0\/1, PC1 \u63a5 f0\/2\nSwitch(config)# interface f0\/1\nSwitch(config-if)# switchport mode access\nSwitch(config-if)# switchport access vlan 10\n\nSwitch(config)# interface f0\/2\nSwitch(config-if)# switchport mode access\nSwitch(config-if)# switchport access vlan 20\n\n<\/code><\/pre>\n<hr>\n<h3>3. \u8def\u7531\u5668 (Router \/ R1) \u914d\u7f6e<\/h3>\n<p>\u8fd9\u53f0\u8bbe\u5907\u8d1f\u8d23\u53f3\u4fa7 VLAN 30 \u548c 40 \u7684\u7f51\u5173\uff08\u5355\u81c2\u8def\u7531\uff09\uff0c\u5e76\u63d0\u4f9b\u53f3\u4fa7\u7684DHCP\u670d\u52a1\u3002<\/p>\n<pre><code class=\"language-c++\">Router&gt; enable\nRouter# configure terminal\nRouter(config)# hostname R1\n\n! \u914d\u7f6e\u8fde\u63a5\u5de6\u4fa7\u4ea4\u6362\u673a\u7684\u63a5\u53e3\nRouter(config)# interface f0\/1\nRouter(config-if)# ip address 172.16.255.2 255.255.255.252\nRouter(config-if)# no shutdown\nRouter(config)# exit\n\n! \u914d\u7f6e\u53f3\u4fa7\u5355\u81c2\u8def\u7531 (\u5b50\u63a5\u53e3)\nRouter(config)# interface f0\/0\nRouter(config-if)# no shutdown\nRouter(config-if)# exit\n\n! VLAN 30 \u7f51\u5173 (\u65e0\u7ebf\u8bbe\u5907)\nRouter(config)# interface f0\/0.30\nRouter(config-subif)# encapsulation dot1Q 30\nRouter(config-subif)# ip address 192.168.30.254 255.255.255.0\nRouter(config-subif)# exit\n\n! VLAN 40 \u7f51\u5173 (\u670d\u52a1\u5668)\nRouter(config)# interface f0\/0.40\nRouter(config-subif)# encapsulation dot1Q 40\nRouter(config-subif)# ip address 192.168.40.254 255.255.255.0\nRouter(config-subif)# exit\n\n! \u914d\u7f6eDHCP\u5730\u5740\u6c60 (VLAN 30 \u548c 40)\nRouter(config)# ip dhcp pool POOL_VLAN30\nRouter(config-dhcp)# network 192.168.30.0 255.255.255.0\nRouter(config-dhcp)# default-router 192.168.30.254\n\nRouter(config)# ip dhcp pool POOL_VLAN40\nRouter(config-dhcp)# network 192.168.40.0 255.255.255.0\nRouter(config-dhcp)# default-router 192.168.40.254\nRouter(config)# exit\n\n! \u914d\u7f6e\u9759\u6001\u8def\u7531\u56de\u6307\u5de6\u4fa7\u7f51\u7edc (\u5173\u952e\u6b65\u9aa4\uff1a\u544a\u8bc9\u8def\u7531\u5668\u600e\u4e48\u53bb 192.168.10.x \u548c 20.x)\nip routing\nRouter(config)# ip route 192.168.10.0 255.255.255.0 172.16.255.1\nRouter(config)# ip route 192.168.20.0 255.255.255.0 172.16.255.1\n\n<\/code><\/pre>\n<hr>\n<h3>4. \u53f3\u4fa7\u4e8c\u5c42\u4ea4\u6362\u673a (sw3 \/ 2960-24TT) \u914d\u7f6e<\/h3>\n<p>\u8fde\u63a5AP\u548c\u670d\u52a1\u5668\uff0c\u9700\u8981\u914d\u7f6eTrunk\u8fde\u63a5\u8def\u7531\u5668\u3002<\/p>\n<pre><code class=\"language-c++\">Switch&gt; enable\nSwitch# configure terminal\nSwitch(config)# hostname SW3\n\n! \u521b\u5efaVLAN\nSwitch(config)# vlan 30\nSwitch(config)# vlan 40\n\n! \u914d\u7f6e\u4e0a\u884c\u7aef\u53e3 (\u8fde\u63a5Router, \u5fc5\u987b\u662fTrunk\u4ee5\u652f\u6301\u5355\u81c2\u8def\u7531)\nSwitch(config)# interface f0\/24\nSwitch(config-if)# switchport mode trunk\n\n! \u914d\u7f6eAP\u7aef\u53e3 (\u5047\u8bbe\u63a5\u5728 f0\/1)\nSwitch(config)# interface f0\/1\nSwitch(config-if)# switchport mode access\nSwitch(config-if)# switchport access vlan 30\n\n! \u914d\u7f6e\u670d\u52a1\u5668\u7aef\u53e3 (\u5047\u8bbe\u63a5\u5728 f0\/2)\nSwitch(config)# interface f0\/2\nSwitch(config-if)# switchport mode access\nSwitch(config-if)# switchport access vlan 40\n\n<\/code><\/pre>\n<hr>\n<h3>5. \u7ec8\u7aef\u8bbe\u5907\u8bbe\u7f6e\u8bf4\u660e<\/h3>\n<ol>\n<li><strong>PC0 \u548c PC1<\/strong>:<\/li>\n<\/ol>\n<ul>\n<li>\u70b9\u51fb PC -&gt; Desktop -&gt; IP Configuration\u3002<\/li>\n<li>\u9009\u62e9 <strong>DHCP<\/strong>\u3002\u5b83\u4eec\u5e94\u8be5\u80fd\u5206\u522b\u83b7\u53d6\u5230 192.168.10.x \u548c 20.x \u7684\u5730\u5740\u3002<\/li>\n<\/ul>\n<ol start=\"2\">\n<li><strong>Smartphone (\u667a\u80fd\u624b\u673a)<\/strong>:<\/li>\n<\/ol>\n<ul>\n<li>\u9700\u8981\u786e\u4fdd Access Point (AP) \u5df2\u5f00\u542f\u4e14\u624b\u673a\u901a\u8fc7\u65e0\u7ebf\u8fde\u63a5\u5230\u4e86AP\uff08\u5728Config\u4e2d\u8bbe\u7f6eSSID\u4e00\u81f4\uff0c\u9ed8\u8ba4\u662fDefault\uff09\u3002<\/li>\n<li>IP Configuration \u9009\u62e9 <strong>DHCP<\/strong>\u3002\u5b83\u5e94\u8be5\u83b7\u53d6\u5230 192.168.30.x \u7684\u5730\u5740\u3002<\/li>\n<\/ul>\n<ol start=\"3\">\n<li><strong>Server (\u670d\u52a1\u5668)<\/strong>:<\/li>\n<\/ol>\n<ul>\n<li>\u5efa\u8bae\u8bbe\u7f6e\u9759\u6001IP\uff08\u867d\u7136\u914d\u7f6e\u4e86DHCP\uff0c\u4f46\u670d\u52a1\u5668\u901a\u5e38\u7528\u9759\u6001\uff09\u3002<\/li>\n<li>IP: 192.168.40.1, Subnet: 255.255.255.0, Gateway: 192.168.40.254\u3002<\/li>\n<\/ul>\n<h3>\u4e3a\u4ec0\u4e48\u8fd9\u6837\u80fd\u901a\uff1f<\/h3>\n<ul>\n<li>\n<p><strong>VLAN\u95f4\u8def\u7531<\/strong>\uff1aMSW1\u5904\u7406\u5de6\u8fb9\u7684VLAN\u4e92\u901a\uff0cRouter\u5904\u7406\u53f3\u8fb9\u7684VLAN\u4e92\u901a\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u8def\u7531\u8868<\/strong>\uff1a<\/p>\n<\/li>\n<li>\n<p>MSW1 \u901a\u8fc7\u9ed8\u8ba4\u8def\u7531 (<code>ip route 0.0.0.0 ...<\/code>) \u628a\u4e0d\u8ba4\u8bc6\u7684\u6d41\u91cf\u6254\u7ed9 Router\u3002<\/p>\n<\/li>\n<li>\n<p>Router \u901a\u8fc7\u9759\u6001\u8def\u7531 (<code>ip route 192.168.10.0 ...<\/code>) \u77e5\u9053\u53bb\u5f80\u5de6\u8fb9\u7684\u5305\u8981\u6254\u7ed9 MSW1\u3002<\/p>\n<\/li>\n<li>\n<p><strong>\u7269\u7406\u8fde\u63a5<\/strong>\uff1a\u4e2d\u95f4\u7684\u865a\u7ebf\u94fe\u8def\u914d\u7f6e\u4e3a\u4e09\u5c42\u8def\u7531\u7aef\u53e3\uff08No switchport\uff09\uff0cIP\u5730\u5740\u5728\u540c\u4e00\u7f51\u6bb5\uff08172.16.255.0\/30\uff09\uff0c\u4fdd\u8bc1\u4e86\u5de6\u53f3\u4e24\u5927\u5757\u7f51\u7edc\u7684\u8fde\u901a\u6027\u3002<\/p>\n<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-file\"><a id=\"wp-block-file--media-1a7fc2e7-18b4-4170-a2c1-8af9b7a76bb8\" href=\"https:\/\/www.axeuh.com\/wp-content\/uploads\/2025\/12\/\u914d\u7f6eDHCP\u670d\u52a1.zip\">\u914d\u7f6eDHCP\u670d\u52a1<\/a><a href=\"https:\/\/www.axeuh.com\/wp-content\/uploads\/2025\/12\/\u914d\u7f6eDHCP\u670d\u52a1.zip\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-1a7fc2e7-18b4-4170-a2c1-8af9b7a76bb8\">\u4e0b\u8f7d<\/a><\/div>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[16],"tags":[],"class_list":["post-623","post","type-post","status-publish","format-standard","hentry","category-16"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.axeuh.com\/index.php\/wp-json\/wp\/v2\/posts\/623","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.axeuh.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.axeuh.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.axeuh.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.axeuh.com\/index.php\/wp-json\/wp\/v2\/comments?post=623"}],"version-history":[{"count":7,"href":"https:\/\/www.axeuh.com\/index.php\/wp-json\/wp\/v2\/posts\/623\/revisions"}],"predecessor-version":[{"id":635,"href":"https:\/\/www.axeuh.com\/index.php\/wp-json\/wp\/v2\/posts\/623\/revisions\/635"}],"wp:attachment":[{"href":"https:\/\/www.axeuh.com\/index.php\/wp-json\/wp\/v2\/media?parent=623"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.axeuh.com\/index.php\/wp-json\/wp\/v2\/categories?post=623"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.axeuh.com\/index.php\/wp-json\/wp\/v2\/tags?post=623"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}