{"id":655,"date":"2025-12-24T10:04:36","date_gmt":"2025-12-24T02:04:36","guid":{"rendered":"https:\/\/www.axeuh.com\/?p=655"},"modified":"2025-12-24T10:14:44","modified_gmt":"2025-12-24T02:14:44","slug":"%e6%89%a9%e5%b1%95acl","status":"publish","type":"post","link":"https:\/\/www.axeuh.com\/index.php\/2025\/12\/24\/%e6%89%a9%e5%b1%95acl\/","title":{"rendered":"\u6269\u5c55ACL"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u4f8b\u56fe\uff1a<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.axeuh.com\/wp-content\/uploads\/2025\/12\/image-3.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"657\" height=\"348\" data-original=\"https:\/\/www.axeuh.com\/wp-content\/uploads\/2025\/12\/image-3.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-656\" style=\"width:813px;height:auto\"  sizes=\"auto, (max-width: 657px) 100vw, 657px\" \/><\/div><\/figure>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">\u5b9e\u64cd\uff1a<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/www.axeuh.com\/wp-content\/uploads\/2025\/12\/image-4.png'><img class=\"lazyload lazyload-style-2\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"562\" height=\"348\" data-original=\"https:\/\/www.axeuh.com\/wp-content\/uploads\/2025\/12\/image-4.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-657\" style=\"aspect-ratio:1.6149849796783884;width:840px;height:auto\"  sizes=\"auto, (max-width: 562px) 100vw, 562px\" \/><\/div><\/figure>\n<\/div>\n\n\n<div class=\"wp-block-jetpack-markdown\"><hr>\n<p>\u8fd9\u662f\u4e00\u4efd\u5728 Cisco Packet Tracer \u4e2d\u4ece\u96f6\u5f00\u59cb\u5b9e\u73b0\u8be5\u5b9e\u9a8c\u7684\u624b\u628a\u624b\u6559\u5b66\u6b65\u9aa4\u3002\u6211\u4eec\u5c06\u5206\u4e3a <strong>\u62d3\u6251\u642d\u5efa<\/strong>\u3001<strong>IP \u914d\u7f6e<\/strong>\u3001<strong>\u8def\u7531\u5b9e\u73b0<\/strong> \u548c <strong>ACL \u5e94\u7528<\/strong> \u56db\u4e2a\u9636\u6bb5\u3002<\/p>\n<hr>\n<h1>\u7b2c\u4e00\u9636\u6bb5\uff1a\u642d\u5efa\u7269\u7406\u62d3\u6251<\/h1>\n<ol>\n<li><strong>\u653e\u7f6e\u8bbe\u5907<\/strong>\uff1a<\/li>\n<\/ol>\n<ul>\n<li><strong>\u8def\u7531\u5668<\/strong>\uff1a\u653e\u7f6e\u4e24\u53f0 <code>Router-PT<\/code>\uff08\u547d\u540d\u4e3a RA \u548c RB\uff09\u3002<\/li>\n<li><strong>\u4ea4\u6362\u673a<\/strong>\uff1a\u5728\u53f3\u4fa7\u653e\u7f6e\u4e00\u53f0 <code>2960<\/code> \u4ea4\u6362\u673a\u3002<\/li>\n<li><strong>\u7ec8\u7aef<\/strong>\uff1a\u5de6\u4fa7\u653e\u7f6e\u4e24\u53f0 PC\uff08PC0, PC1\uff09\uff0c\u53f3\u4fa7\u653e\u7f6e\u4e24\u53f0 Server\uff08Server0, Server1\uff09\u3002<\/li>\n<\/ul>\n<ol start=\"2\">\n<li><strong>\u8fde\u63a5\u7ebf\u7f06<\/strong>\uff1a<\/li>\n<\/ol>\n<ul>\n<li><strong>PC0<\/strong> \u8fde RA \u7684 <strong>Fa0\/0<\/strong>\uff1b<strong>PC1<\/strong> \u8fde RA \u7684 <strong>fa0\/1<\/strong>\u3002<\/li>\n<li><strong>RA<\/strong> \u7684 <strong>Se2\/0<\/strong> \u8fde <strong>RB<\/strong> \u7684 <strong>Se2\/0<\/strong>\uff08\u4f7f\u7528 Serial DCE \u7ebf\u7f06\uff09\u3002<\/li>\n<li><strong>RB<\/strong> \u7684 <strong>Fa0\/0<\/strong> \u8fde\u4ea4\u6362\u673a\uff1b\u4ea4\u6362\u673a\u518d\u8fde\u63a5\u4e24\u53f0\u670d\u52a1\u5668\u3002<\/li>\n<\/ul>\n<hr>\n<h1>\u7b2c\u4e8c\u9636\u6bb5\uff1a\u914d\u7f6e\u7ec8\u7aef\u8bbe\u5907 IP<\/h1>\n<p>\u8bf7\u53cc\u51fb\u6bcf\u4e2a\u8bbe\u5907\uff0c\u8fdb\u5165 <strong>Desktop -&gt; IP Configuration<\/strong> \u8fdb\u884c\u8bbe\u7f6e\uff1a<\/p>\n<table>\n<thead>\n<tr>\n<th>\u8bbe\u5907<\/th>\n<th>IP \u5730\u5740<\/th>\n<th>\u5b50\u7f51\u63a9\u7801<\/th>\n<th>\u9ed8\u8ba4\u7f51\u5173<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>PC0<\/strong><\/td>\n<td>192.168.1.2<\/td>\n<td>255.255.255.0<\/td>\n<td>192.168.1.1<\/td>\n<\/tr>\n<tr>\n<td><strong>PC1<\/strong><\/td>\n<td>192.168.2.2<\/td>\n<td>255.255.255.0<\/td>\n<td>192.168.2.1<\/td>\n<\/tr>\n<tr>\n<td><strong>Server0 (FTP)<\/strong><\/td>\n<td>192.168.4.2<\/td>\n<td>255.255.255.0<\/td>\n<td>192.168.4.1<\/td>\n<\/tr>\n<tr>\n<td><strong>Server1 (WWW)<\/strong><\/td>\n<td>192.168.4.3<\/td>\n<td>255.255.255.0<\/td>\n<td>192.168.4.1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<blockquote>\n<p><strong>\u63d0\u793a<\/strong>\uff1a\u70b9\u51fb\u670d\u52a1\u5668\u7684 <strong>Services<\/strong> \u9009\u9879\u5361\uff0c\u786e\u4fdd <strong>HTTP<\/strong> \u548c <strong>FTP<\/strong> \u670d\u52a1\u5904\u4e8e <code>On<\/code> \u72b6\u6001\u3002<\/p>\n<\/blockquote>\n<hr>\n<h1>\u7b2c\u4e09\u9636\u6bb5\uff1a\u914d\u7f6e\u8def\u7531\u5668\u63a5\u53e3\u4e0e\u8def\u7531<\/h1>\n<p>\u6211\u4eec\u9700\u8981\u5148\u8ba9\u7f51\u7edc\u201c\u5168\u901a\u201d\uff0c\u518d\u8fdb\u884c\u9650\u5236\u3002<\/p>\n<h2>1. \u914d\u7f6e RA \u8def\u7531\u5668<\/h2>\n<p>\u5355\u51fb RA\uff0c\u8fdb\u5165 <strong>CLI<\/strong> \u9762\u677f\uff1a<\/p>\n<pre><code class=\"language-bash\">Router&gt; enable\nRouter# configure terminal\n# \u914d\u7f6e\u8fde\u63a5 PC0 \u7684\u63a5\u53e3\nRouter(config)# interface fa0\/0\nRouter(config-if)# ip address 192.168.1.1 255.255.255.0\nRouter(config-if)# no shutdown\n# \u914d\u7f6e\u8fde\u63a5 PC1 \u7684\u63a5\u53e3\nRouter(config)# interface fa0\/1\nRouter(config-if)# ip address 192.168.2.1 255.255.255.0\nRouter(config-if)# no shutdown\n# \u914d\u7f6e\u8fde\u63a5 RB \u7684\u4e32\u53e3\nRouter(config)# interface serial 1\/0\nRouter(config-if)# ip address 192.168.3.1 255.255.255.0\nRouter(config-if)# no shutdown\n# \u6dfb\u52a0\u9759\u6001\u8def\u7531\u6307\u5411\u670d\u52a1\u5668\u7f51\u6bb5\nRouter(config)# ip route 192.168.4.0 255.255.255.0 192.168.3.2\nRouter(config)# ip routing\n\n<\/code><\/pre>\n<h2>2. \u914d\u7f6e RB \u8def\u7531\u5668<\/h2>\n<pre><code class=\"language-bash\">Router&gt; enable\nRouter# configure terminal\n# \u914d\u7f6e\u8fde\u63a5 RA \u7684\u4e32\u53e3\nRouter(config)# interface serial 1\/0\nRouter(config-if)# ip address 192.168.3.2 255.255.255.0\nRouter(config-if)# no shutdown\n# \u914d\u7f6e\u8fde\u63a5\u670d\u52a1\u5668\u4fa7\u7684\u63a5\u53e3\nRouter(config)# interface fa0\/0\nRouter(config-if)# ip address 192.168.4.1 255.255.255.0\nRouter(config-if)# no shutdown\n# \u6dfb\u52a0\u9759\u6001\u8def\u7531\u6307\u56de PC \u7f51\u6bb5\nRouter(config)# ip route 192.168.1.0 255.255.255.0 192.168.3.1\nRouter(config)# ip route 192.168.2.0 255.255.255.0 192.168.3.1\nRouter(config)# ip routing\n\n<\/code><\/pre>\n<hr>\n<h1>\u7b2c\u56db\u9636\u6bb5\uff1a\u914d\u7f6e\u5e76\u5e94\u7528 ACL\uff08\u5173\u952e\u6b65\u9aa4\uff09<\/h1>\n<p>\u8fd9\u4e00\u6b65\u5c06\u6839\u636e\u4f60\u7684\u5177\u4f53\u9700\u6c42\u8bbe\u7f6e\u6743\u9650\u3002<\/p>\n<h2>1. \u5728 RA \u4e0a\u7f16\u5199\u89c4\u5219<\/h2>\n<p>\u7ee7\u7eed\u5728 RA \u7684 <strong>CLI<\/strong> \u4e2d\u8f93\u5165\uff1a<\/p>\n<pre><code class=\"language-bash\"># \u89c4\u5219 101\uff1a\u9488\u5bf9 1.0 \u7f51\u6bb5 (PC0)\n# \u5141\u8bb8\u8bbf\u95ee FTP \u53ca\u5176\u6570\u636e\u4f20\u8f93\naccess-list 101 permit tcp 192.168.1.0 0.0.0.255 host 192.168.4.2 eq ftp\n# \u7981\u6b62\u8bbf\u95ee WWW\naccess-list 101 deny tcp 192.168.1.0 0.0.0.255 host 192.168.4.3 eq www\n# \u5141\u8bb8\u5176\u4ed6\u6240\u6709\uff08\u5982 Ping\uff09\naccess-list 101 permit ip any any\n\n# \u89c4\u5219 102\uff1a\u9488\u5bf9 2.0 \u7f51\u6bb5 (PC1)\n# \u4ec5\u5141\u8bb8\u8bbf\u95ee WWW \u548c FTP\uff0c\u5176\u4ed6\u5168\u90e8\u62d2\u7edd\naccess-list 102 permit tcp 192.168.2.0 0.0.0.255 host 192.168.4.3 eq www\naccess-list 102 permit tcp 192.168.2.0 0.0.0.255 host 192.168.4.2 eq ftp\n\n<\/code><\/pre>\n<h2>2. \u5e94\u7528\u5230\u7269\u7406\u63a5\u53e3<\/h2>\n<p>\u5fc5\u987b\u5c06 ACL \u6302\u8f7d\u5230\u63a5\u53e3\u4e0a\uff0c\u89c4\u5219\u624d\u4f1a\u751f\u6548\u3002<\/p>\n<pre><code class=\"language-bash\"># \u5728 PC0 \u8fdb\u5165\u8def\u7531\u5668\u7684\u63a5\u53e3\u5e94\u7528 101\nRouter(config)# interface fa0\/0\nRouter(config-if)# ip access-group 101 in\n\n# \u5728 PC1 \u8fdb\u5165\u8def\u7531\u5668\u7684\u63a5\u53e3\u5e94\u7528 102\nRouter(config)# interface fa0\/1\nRouter(config-if)# ip access-group 102 in\n\n<\/code><\/pre>\n<hr>\n<h1>\u7b2c\u4e94\u9636\u6bb5\uff1a\u9a8c\u8bc1\uff08\u6d4b\u8bd5\u4f60\u7684\u6210\u679c\uff09<\/h1>\n<ol>\n<li><strong>\u6d4b\u8bd5 PC0 (192.168.1.2)<\/strong>:<\/li>\n<\/ol>\n<ul>\n<li>\u6253\u5f00 <strong>Desktop -&gt; Web Browser<\/strong>\uff0c\u8f93\u5165 <code>192.168.4.3<\/code>\u3002\u7ed3\u679c\uff1a<strong>\u65e0\u6cd5\u8bbf\u95ee<\/strong>\uff08Timeout\uff09\u3002<\/li>\n<li>\u6253\u5f00 <strong>Command Prompt<\/strong>\uff0c\u8f93\u5165 <code>ftp 192.168.4.2<\/code>\u3002\u7ed3\u679c\uff1a<strong>\u63d0\u793a\u8f93\u5165\u7528\u6237\u540d<\/strong>\uff08Success\uff09\u3002<\/li>\n<li>\u5728 CMD \u8f93\u5165 <code>ping 192.168.4.3<\/code>\u3002\u7ed3\u679c\uff1a<strong>\u53ef\u4ee5 Ping \u901a<\/strong>\u3002<\/li>\n<\/ul>\n<ol start=\"2\">\n<li><strong>\u6d4b\u8bd5 PC1 (192.168.2.2)<\/strong>:<\/li>\n<\/ol>\n<ul>\n<li>\u8bbf\u95ee <code>192.168.4.3<\/code> \u7684\u7f51\u9875\u3002\u7ed3\u679c\uff1a<strong>\u6210\u529f\u663e\u793a\u7f51\u9875<\/strong>\u3002<\/li>\n<li>\u5728 CMD \u8f93\u5165 <code>ping 192.168.4.3<\/code>\u3002\u7ed3\u679c\uff1a<strong>Request timed out<\/strong>\uff08\u56e0\u4e3a\u88ab ACL \u672b\u5c3e\u7684\u9690\u85cf\u62d2\u7edd\u89c4\u5219\u62e6\u622a\u4e86\uff09\u3002<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-file\"><a id=\"wp-block-file--media-5be3e744-effa-4fa8-91d6-671ff6fc49c0\" href=\"https:\/\/www.axeuh.com\/wp-content\/uploads\/2025\/12\/\u5b9e\u8bad18\u6269\u5c55ACL\uff081\uff09.zip\">\u5b9e\u8bad18\u6269\u5c55ACL\uff081\uff09<\/a><a href=\"https:\/\/www.axeuh.com\/wp-content\/uploads\/2025\/12\/\u5b9e\u8bad18\u6269\u5c55ACL\uff081\uff09.zip\" class=\"wp-block-file__button wp-element-button\" download aria-describedby=\"wp-block-file--media-5be3e744-effa-4fa8-91d6-671ff6fc49c0\">\u4e0b\u8f7d<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u4f8b\u56fe\uff1a \u5b9e\u64cd\uff1a<\/p>\n","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":[17],"class_list":["post-655","post","type-post","status-publish","format-standard","hentry","category-16","tag-17"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.axeuh.com\/index.php\/wp-json\/wp\/v2\/posts\/655","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=655"}],"version-history":[{"count":6,"href":"https:\/\/www.axeuh.com\/index.php\/wp-json\/wp\/v2\/posts\/655\/revisions"}],"predecessor-version":[{"id":665,"href":"https:\/\/www.axeuh.com\/index.php\/wp-json\/wp\/v2\/posts\/655\/revisions\/665"}],"wp:attachment":[{"href":"https:\/\/www.axeuh.com\/index.php\/wp-json\/wp\/v2\/media?parent=655"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.axeuh.com\/index.php\/wp-json\/wp\/v2\/categories?post=655"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.axeuh.com\/index.php\/wp-json\/wp\/v2\/tags?post=655"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}