{"id":240,"date":"2025-06-12T19:19:00","date_gmt":"2025-06-12T10:19:00","guid":{"rendered":"https:\/\/ccna-curriculum.tech-village.co.jp\/?p=240"},"modified":"2025-10-18T11:06:30","modified_gmt":"2025-10-18T02:06:30","slug":"acl%ef%bc%88%e8%a8%ad%e5%ae%9a%e3%81%a8%e6%b4%bb%e7%94%a8%ef%bc%89","status":"publish","type":"post","link":"https:\/\/ccna-curriculum.tech-village.co.jp\/?p=240","title":{"rendered":"ACL\uff08\u8a2d\u5b9a\u3068\u6d3b\u7528\uff09"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">ACL\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u78ba\u8a8d\u65b9\u6cd5<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">ACL\uff08\u30a2\u30af\u30bb\u30b9\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30ea\u30b9\u30c8\uff09\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3059\u308b\u969b\u306b\u4f7f\u3046\u57fa\u672c\u30b3\u30de\u30f3\u30c9\u306f <strong><span class=\"swl-marker mark_yellow\">show access-lists<\/span><\/strong> \u3067\u3059\u3002\u3053\u308c\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001\u30eb\u30fc\u30bf\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3059\u3079\u3066\u306eACL\u306e\u60c5\u5831\u304c\u4e00\u89a7\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u3082\u3057\u7279\u5b9a\u306eACL\u3060\u3051\u3092\u78ba\u8a8d\u3057\u305f\u3044\u5834\u5408\u306b\u306f\u3001\u756a\u53f7\u307e\u305f\u306f\u540d\u524d\u3092\u6307\u5b9a\u3057\u3066\u5b9f\u884c\u3057\u307e\u3059\u3002\u307e\u305f\u3001IP\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u95a2\u3059\u308bACL\u3060\u3051\u3092\u78ba\u8a8d\u3059\u308b\u5834\u5408\u306b\u306f <strong><span class=\"swl-marker mark_yellow\">show ip access-lists<\/span><\/strong> \u3092\u7528\u3044\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3064\u307e\u308a\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u4f7f\u3044\u5206\u3051\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5168\u3066\u306eACL\u3092\u8868\u793a\u3059\u308b\u5834\u5408\u306f <strong>show access-lists<\/strong><\/li>\n\n\n\n<li>\u7279\u5b9a\u306eACL\uff08\u756a\u53f7\u3084\u540d\u524d\uff09\u3092\u8868\u793a\u3059\u308b\u5834\u5408\u306f <strong>show access-lists 100<\/strong> \u306a\u3069<\/li>\n\n\n\n<li>\u7279\u5b9a\u30d7\u30ed\u30c8\u30b3\u30eb\u306b\u9650\u5b9a\u3057\u3066\u8868\u793a\u3059\u308b\u5834\u5408\u306f <strong>show ip access-lists<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u8868\u793a\u7d50\u679c\u306b\u306f\u3001\u305d\u308c\u305e\u308c\u306e\u6761\u4ef6\u6587\u3054\u3068\u306b\u300c\u30b7\u30fc\u30b1\u30f3\u30b9\u756a\u53f7\u300d\u3068\u300c\u4e00\u81f4\u3057\u305f\u30d1\u30b1\u30c3\u30c8\u6570\u300d\u304c\u793a\u3055\u308c\u307e\u3059\u3002\u51fa\u529b\u306b\u542b\u307e\u308c\u308b\u300c\uff5e matches\u300d\u3068\u3044\u3046\u8868\u793a\u304c\u3001\u5b9f\u969b\u306b\u305d\u306e\u6761\u4ef6\u306b\u4e00\u81f4\u3057\u305f\u30d1\u30b1\u30c3\u30c8\u306e\u6570\u3092\u8868\u3057\u3066\u3044\u307e\u3059\u3002\u4f8b\u3048\u3070\u300caccess-list 100 permit icmp host 192.168.1.10 host 192.168.1.254 (12 matches)\u300d\u3068\u3042\u308c\u3070\u300112\u500b\u306e\u30d1\u30b1\u30c3\u30c8\u304c\u305d\u306e\u30eb\u30fc\u30eb\u306b\u8a72\u5f53\u3057\u305f\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u3067\u91cd\u8981\u306a\u306e\u306f\u3001ACL\u306e\u6700\u5f8c\u306b\u306f\u5fc5\u305a <strong><span class=\"swl-marker mark_yellow\">\u6697\u9ed9\u306e deny any<\/span><\/strong> \u304c\u5b58\u5728\u3059\u308b\u3068\u3044\u3046\u70b9\u3067\u3059\u3002\u3064\u307e\u308a\u3001\u3069\u306e\u6761\u4ef6\u306b\u3082\u5408\u81f4\u3057\u306a\u3044\u30d1\u30b1\u30c3\u30c8\u306f\u81ea\u52d5\u7684\u306b\u7834\u68c4\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u306f\u51fa\u529b\u306b\u306f\u8868\u793a\u3055\u308c\u306a\u3044\u305f\u3081\u3001\u8a66\u9a13\u554f\u984c\u3067\u3082\u3088\u304f\u300c\u6697\u9ed9\u306edeny\u300d\u304c\u524d\u63d0\u3068\u3057\u3066\u554f\u308f\u308c\u308b\u306e\u3067\u5fc5\u305a\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">ACL\u304c\u3069\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u9069\u7528\u3055\u308c\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f <strong>show running-config<\/strong> \u306e\u4ed6\u306b <strong>show ip interface<\/strong> \u3092\u4f7f\u3046\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u51fa\u529b\u304b\u3089\u300c\u3069\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u3001\u3069\u306e\u65b9\u5411\uff08inbound \/ outbound\uff09\u3067ACL\u304c\u9069\u7528\u3055\u308c\u3066\u3044\u308b\u304b\u300d\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u8a66\u9a13\u3067\u3082\u8a2d\u5b9a\u306e\u65b9\u5411\u3092\u8aa4\u89e3\u3057\u306a\u3044\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30b7\u30fc\u30b1\u30f3\u30b9\u756a\u53f7\u3092\u4f7f\u3063\u305fACL\u306e\u7de8\u96c6\uff08\u8ffd\u52a0\uff09<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">ACL\u306b\u6761\u4ef6\u3092\u8ffd\u52a0\u3059\u308b\u5834\u5408\u3001\u901a\u5e38\u306f\u6700\u5f8c\u306e\u884c\u306b\u81ea\u52d5\u3067\u8ffd\u52a0\u3055\u308c\u307e\u3059\u3002\u756a\u53f7\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u300c10\u300d\u304b\u3089\u59cb\u307e\u308a\u300110\u305a\u3064\u5897\u3048\u3066\u3044\u304d\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u6700\u521d\u306b\u300c10\u300d\u300c20\u300d\u300c30\u300d\u3068\u4e26\u3093\u3067\u3044\u308c\u3070\u3001\u6b21\u306b\u8ffd\u52a0\u3059\u308b\u884c\u306f\u300c40\u300d\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3057\u304b\u3057\u3001\u300c\u3053\u306e\u6761\u4ef6\u3092\u30ea\u30b9\u30c8\u306e\u5148\u982d\u306b\u5165\u308c\u305f\u3044\u300d\u3068\u601d\u3046\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u5834\u5408\u306f\u30b7\u30fc\u30b1\u30f3\u30b9\u756a\u53f7\u3092\u660e\u793a\u7684\u306b\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u4efb\u610f\u306e\u4f4d\u7f6e\u306b\u6761\u4ef6\u3092\u633f\u5165\u3067\u304d\u307e\u3059\u3002\u4f8b\u3048\u3070\u300c10\u300d\u3088\u308a\u5c0f\u3055\u3044\u756a\u53f7\u3092\u6307\u5b9a\u3059\u308c\u3070\u3001\u305d\u306e\u884c\u3092\u6700\u521d\u306b\u6301\u3063\u3066\u304f\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u3068\u304d\u5fc5\u8981\u306b\u306a\u308b\u306e\u304c <strong>\u540d\u524d\u4ed8\u304dACL\u306e\u69cb\u6587<\/strong> \u3067\u3059\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(config)# ip access-list extended 100\n(config-ext-nacl)# 5 permit ip host 192.168.0.1 host 20.1.1.1<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u3088\u3046\u306b\u30b7\u30fc\u30b1\u30f3\u30b9\u756a\u53f7\u300c5\u300d\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u5148\u982d\u306b\u6761\u4ef6\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u306a\u304a\u3001\u6a19\u6e96ACL\u306e\u5834\u5408\u306f\u6a5f\u7a2e\u306b\u3088\u3063\u3066\u306f\u53cd\u6620\u3055\u308c\u306b\u304f\u3044\u3053\u3068\u304c\u3042\u308b\u305f\u3081\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30b7\u30fc\u30b1\u30f3\u30b9\u756a\u53f7\u3092\u4f7f\u3063\u305fACL\u306e\u7de8\u96c6\uff08\u524a\u9664\uff09<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">ACL\u306e\u4e00\u90e8\u3060\u3051\u3092\u524a\u9664\u3057\u305f\u3044\u5834\u5408\u306b\u3082\u30b7\u30fc\u30b1\u30f3\u30b9\u756a\u53f7\u3092\u6d3b\u7528\u3057\u307e\u3059\u3002\u305f\u3068\u3048\u3070\u3001ACL101\u306b4\u3064\u306e\u6761\u4ef6\u304c\u3042\u308a\u3001\u305d\u306e\u3046\u3061\u6700\u5f8c\u306e\u300cpermit tcp any any\u300d\u3060\u3051\u3092\u6d88\u3057\u305f\u3044\u3068\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u3068\u304d\u5358\u7d14\u306b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>no access-list 101 permit tcp any any<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3068\u5165\u529b\u3059\u308b\u3068\u3001ACL101\u5168\u4f53\u304c\u524a\u9664\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u90e8\u5206\u7684\u306b\u524a\u9664\u3059\u308b\u306b\u306f\u4ee5\u4e0b\u306e\u624b\u9806\u3092\u3068\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>show access-lists<\/strong> \u3067\u5bfe\u8c61\u3068\u306a\u308b\u6761\u4ef6\u6587\u306e\u30b7\u30fc\u30b1\u30f3\u30b9\u756a\u53f7\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/li>\n\n\n\n<li>\u305d\u306eACL\u304c\u300c\u6a19\u6e96ACL\u300d\u304b\u300c\u62e1\u5f35ACL\u300d\u304b\u3092\u5224\u65ad\u3059\u308b\u3002<\/li>\n\n\n\n<li>\u305d\u308c\u306b\u5fdc\u3058\u3066\u6b21\u306e\u3088\u3046\u306b\u5165\u529b\u3059\u308b\u3002<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">\u6a19\u6e96ACL\u306e\u5834\u5408\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(config)# ip access-list standard 1\n(config-std-nacl)# no 30<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u62e1\u5f35ACL\u306e\u5834\u5408\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(config)# ip access-list extended 101\n(config-ext-nacl)# no 40<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u3088\u3046\u306b\u30b7\u30fc\u30b1\u30f3\u30b9\u756a\u53f7\u3092\u4f7f\u3046\u3068\u3001\u4e0d\u8981\u306a\u884c\u3060\u3051\u3092\u30d4\u30f3\u30dd\u30a4\u30f3\u30c8\u3067\u524a\u9664\u3067\u304d\u308b\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-icon_pen wp-block-paragraph\">\u8a66\u9a13\u3067\u3082\u300c\u7279\u5b9a\u306e\u30eb\u30fc\u30eb\u3060\u3051\u3092\u6d88\u3059\u306b\u306f\u3069\u3046\u3059\u3079\u304d\u304b\u300d\u3068\u3044\u3046\u554f\u984c\u304c\u51fa\u3084\u3059\u3044\u306e\u3067\u3001<strong>no access-list \u6587\u3092\u305d\u306e\u307e\u307e\u6253\u3064\u3068\u5168\u90e8\u6d88\u3048\u308b<\/strong>\u3068\u3044\u3046\u843d\u3068\u3057\u7a74\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">VTY\u3078\u306e\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u3068\u306f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">ACL\u306f\u901a\u5e38\u300c\u30eb\u30fc\u30bf\u3092\u901a\u904e\u3059\u308b\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u300d\u3092\u5236\u5fa1\u3059\u308b\u76ee\u7684\u3067\u4f7f\u308f\u308c\u307e\u3059\u304c\u3001\u5b9f\u306f\u30eb\u30fc\u30bf\u305d\u306e\u3082\u306e\u3078\u306e\u7ba1\u7406\u30a2\u30af\u30bb\u30b9\u3092\u5236\u5fa1\u3059\u308b\u7528\u9014\u306b\u3082\u5229\u7528\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u7ba1\u7406\u30a2\u30af\u30bb\u30b9\u306f <strong><span class=\"swl-marker mark_yellow\">VTY\uff08Virtual Teletype\uff09\u30dd\u30fc\u30c8<\/span><\/strong> \u3092\u7d4c\u7531\u3057\u3066\u884c\u308f\u308c\u3001Telnet\u3084SSH\u3067\u30eb\u30fc\u30bf\u3078\u63a5\u7d9a\u3059\u308b\u969b\u306b\u5fc5\u305a\u901a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3082\u3057\u5404\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u62e1\u5f35ACL\u3092\u9069\u7528\u3057\u3066\u7ba1\u7406\u30a2\u30af\u30bb\u30b9\u3092\u5236\u5fa1\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3001\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u6570\u3060\u3051ACL\u3092\u4f5c\u3089\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u3057\u304b\u3057\u3001VTY\u56de\u7dda\u306b\u5bfe\u3057\u3066\u6a19\u6e96ACL\u3092\u9069\u7528\u3059\u308c\u3070\u3001<strong>\u305f\u3063\u305f\u4e00\u3064\u306eACL\u3067\u30eb\u30fc\u30bf\u5168\u4f53\u3078\u306e\u7ba1\u7406\u30a2\u30af\u30bb\u30b9\u3092\u5236\u5fa1\u3067\u304d\u308b<\/strong>\u305f\u3081\u3001\u8a2d\u5b9a\u304c\u30b7\u30f3\u30d7\u30eb\u306b\u306a\u308a\u307e\u3059\u3002\u8a66\u9a13\u3067\u3082\u300cVTY\u3078\u306eACL\u9069\u7528\u300d\u3068\u3044\u3046\u89b3\u70b9\u306f\u3088\u304f\u554f\u308f\u308c\u307e\u3059\u306e\u3067\u3001\u5fc5\u305a\u62bc\u3055\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">VTY\u3078\u306e\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u306e\u8a2d\u5b9a\u624b\u9806<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305a\u306f\u300c\u3069\u306e\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\u3092\u8a31\u53ef\u3059\u308b\u304b\uff08\u307e\u305f\u306f\u62d2\u5426\u3059\u308b\u304b\uff09\u300d\u3092\u6c7a\u3081\u308b\u305f\u3081\u306b\u6a19\u6e96ACL\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u6a19\u6e96ACL\u306f\u756a\u53f7\u5f62\u5f0f\u3067\u3082\u540d\u524d\u5f62\u5f0f\u3067\u3082\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u756a\u53f7\u4ed8\u304d\u6a19\u6e96ACL\u306e\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(config)# access-list 10 permit 192.168.1.0 0.0.0.255<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b21\u306b\u3001\u4f5c\u6210\u3057\u305fACL\u3092VTY\u56de\u7dda\u3078\u9069\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(config)# line vty 0 15\n(config-line)# access-class 10 in<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u8a2d\u5b9a\u306b\u3088\u308a\u3001192.168.1.0\/24 \u304b\u3089\u306eTelnet\u3084SSH\u30a2\u30af\u30bb\u30b9\u3060\u3051\u304c\u8a31\u53ef\u3055\u308c\u3001\u305d\u308c\u4ee5\u5916\u306e\u9001\u4fe1\u5143\u304b\u3089\u306e\u63a5\u7d9a\u306f\u62d2\u5426\u3055\u308c\u307e\u3059\u3002\u3053\u3053\u3067\u300cin\u300d\u3092\u6307\u5b9a\u3057\u3066\u3044\u308b\u306e\u306f\u3001\u30eb\u30fc\u30bf\u3078\u5165\u3063\u3066\u304f\u308b\u7ba1\u7406\u30a2\u30af\u30bb\u30b9\u3092\u5236\u5fa1\u3059\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30a2\u30a6\u30c8\u30d0\u30a6\u30f3\u30c9\u3067\u306eVTY\u30a2\u30af\u30bb\u30b9\u5236\u5fa1<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u591a\u304f\u306e\u5834\u5408\u3001VTY\u30a2\u30af\u30bb\u30b9\u5236\u5fa1\u306f\u30a4\u30f3\u30d0\u30a6\u30f3\u30c9\u3067\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u3064\u307e\u308a\u300c\u3069\u306e\u7aef\u672b\u304c\u30eb\u30fc\u30bf\u3078\u7ba1\u7406\u63a5\u7d9a\u3067\u304d\u308b\u304b\u300d\u3092\u5236\u5fa1\u3059\u308b\u4f7f\u3044\u65b9\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3057\u304b\u3057\u3001\u30a2\u30a6\u30c8\u30d0\u30a6\u30f3\u30c9\u306b\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002\u3053\u306e\u5834\u5408\u306f\u9006\u306b\u3001\u30eb\u30fc\u30bf\u81ea\u8eab\u304c\u4ed6\u306e\u6a5f\u5668\u3078Telnet\u3084SSH\u3067\u63a5\u7d9a\u3059\u308b\u969b\u306e\u901a\u4fe1\u3092\u5236\u5fa1\u3057\u307e\u3059\u3002\u3053\u3053\u3067\u91cd\u8981\u306a\u306e\u306f\u3001\u901a\u5e38\u306e\u6a19\u6e96ACL\u304c\u300c\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\u300d\u3067\u5224\u65ad\u3059\u308b\u306e\u306b\u5bfe\u3057\u3066\u3001<strong>\u30a2\u30a6\u30c8\u30d0\u30a6\u30f3\u30c9\u3067\u4f7f\u3046\u5834\u5408\u306f\u5b9b\u5148\u30a2\u30c9\u30ec\u30b9\u3067\u5224\u65ad\u3059\u308b<\/strong>\u3068\u3044\u3046\u70b9\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u3048\u3070\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a2d\u5b9a\u3059\u308c\u3070\u3001\u30eb\u30fc\u30bf\u304b\u3089 10.1.1.1 \u3078\u306eTelnet\u63a5\u7d9a\u3092\u7981\u6b62\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>(config)# access-list 15 deny 10.1.1.1\n(config)# access-list 15 permit any\n(config)# line vty 0 15\n(config-line)# access-class 15 out<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u5834\u5408\u3001\u30eb\u30fc\u30bf\u306e\u30b3\u30f3\u30bd\u30fc\u30eb\u304b\u3089 <code>telnet 10.1.1.1<\/code> \u3068\u5165\u529b\u3057\u3066\u3082\u63a5\u7d9a\u3067\u304d\u307e\u305b\u3093\u3002\u3064\u307e\u308a\u5236\u5fa1\u5bfe\u8c61\u306f\u300c\u30eb\u30fc\u30bf\u3092\u901a\u904e\u3059\u308b\u30d1\u30b1\u30c3\u30c8\u300d\u3067\u306f\u306a\u304f\u3001\u300c\u30eb\u30fc\u30bf\u81ea\u8eab\u304c\u751f\u6210\u3057\u305f\u7ba1\u7406\u30a2\u30af\u30bb\u30b9\u306e\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u300d\u306a\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"is-style-icon_pen wp-block-paragraph\">\u8a66\u9a13\u5bfe\u7b56\uff1a<br>\u30fbVTY\u3078\u306eACL\u306f\u6a19\u6e96ACL\u3067\u8a2d\u5b9a\u3059\u308b\u306e\u304c\u57fa\u672c<br>\u30fb\u30a4\u30f3\u30d0\u30a6\u30f3\u30c9\u306f\u300c\u30eb\u30fc\u30bf\u306b\u5165\u308b\u7ba1\u7406\u30a2\u30af\u30bb\u30b9\u300d\u3092\u5236\u5fa1\u3059\u308b<br>\u30fb\u30a2\u30a6\u30c8\u30d0\u30a6\u30f3\u30c9\u306f\u300c\u30eb\u30fc\u30bf\u81ea\u8eab\u304c\u5916\u3078\u51fa\u3059\u7ba1\u7406\u30a2\u30af\u30bb\u30b9\u300d\u3092\u5236\u5fa1\u3059\u308b<br>\u30fb\u6a19\u6e96ACL\u304c\u30a2\u30a6\u30c8\u30d0\u30a6\u30f3\u30c9\u9069\u7528\u6642\u306f\u300c\u5b9b\u5148\u30a2\u30c9\u30ec\u30b9\u300d\u3092\u57fa\u6e96\u306b\u52d5\u4f5c\u3059\u308b\u70b9\u304c\u91cd\u8981<br><br>\u3053\u3053\u306f\u8a66\u9a13\u3067\u3082\u6df7\u4e71\u3057\u3084\u3059\u3044\u90e8\u5206\u306a\u306e\u3067\u3001\u300c\u30a4\u30f3\u30d0\u30a6\u30f3\u30c9\uff1d\u9001\u4fe1\u5143\u30a2\u30c9\u30ec\u30b9\u306e\u5236\u5fa1\u300d\u300c\u30a2\u30a6\u30c8\u30d0\u30a6\u30f3\u30c9\uff1d\u5b9b\u5148\u30a2\u30c9\u30ec\u30b9\u306e\u5236\u5fa1\u300d\u3068\u3044\u3046\u6574\u7406\u3067\u899a\u3048\u3066\u304a\u304f\u3068\u5b89\u5fc3\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u25c6\u307e\u3068\u3081\u30b9\u30e9\u30a4\u30c9<\/h2>\n\n\n\n<div data-wp-interactive=\"core\/file\" class=\"wp-block-file\"><object data-wp-bind--hidden=\"!state.hasPdfPreview\" hidden class=\"wp-block-file__embed\" data=\"https:\/\/ccna-curriculum.tech-village.co.jp\/wp-content\/uploads\/2025\/06\/ACL\uff08\u8a2d\u5b9a\u3068\u6d3b\u7528\uff09.pdf\" type=\"application\/pdf\" style=\"width:100%;height:600px\" aria-label=\"ACL\uff08\u8a2d\u5b9a\u3068\u6d3b\u7528\uff09\u306e\u57cb\u3081\u8fbc\u307f\u3002\"><\/object><a id=\"wp-block-file--media-62c1553a-71fe-4efe-80ff-6caa2d262337\" href=\"https:\/\/ccna-curriculum.tech-village.co.jp\/wp-content\/uploads\/2025\/06\/ACL\uff08\u8a2d\u5b9a\u3068\u6d3b\u7528\uff09.pdf\">ACL\uff08\u8a2d\u5b9a\u3068\u6d3b\u7528\uff09<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>ACL\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u78ba\u8a8d\u65b9\u6cd5 ACL\uff08\u30a2\u30af\u30bb\u30b9\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u30ea\u30b9\u30c8\uff09\u306e\u72b6\u614b\u3092\u78ba\u8a8d\u3059\u308b\u969b\u306b\u4f7f\u3046\u57fa\u672c\u30b3\u30de\u30f3\u30c9\u306f show access-lists \u3067\u3059\u3002\u3053\u308c\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001\u30eb\u30fc\u30bf\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3059\u3079\u3066\u306eACL\u306e\u60c5\u5831\u304c\u4e00\u89a7\u8868\u793a\u3055\u308c [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[15],"tags":[],"class_list":["post-240","post","type-post","status-publish","format-standard","hentry","category-security"],"_links":{"self":[{"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/posts\/240","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=240"}],"version-history":[{"count":3,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/posts\/240\/revisions"}],"predecessor-version":[{"id":819,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=\/wp\/v2\/posts\/240\/revisions\/819"}],"wp:attachment":[{"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=240"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=240"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ccna-curriculum.tech-village.co.jp\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=240"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}