Standard Access List

Standard ACLs are used for everything from traffic filtering to route filtering and everything in between. Most people don’t use them for traffic filtering today, as they can only filter based on source address, extended ACLs are much more useful for traffic filtering. I use them for filtering debug output, access control to VTY lines, route update filtering, etc. Here is an example of a standard ACL being used for access control on the VTY lines of a IOS router.

SC#config terminal
SC(config)#access-list 99 permit host
SC(config)#access-list 99 deny any any
SC(config)#line vty 0 903
SC(config-line)#access-class 99
Sep 3rd, 2010 • Posted in IOS, Security
No comments yet.

Leave a comment

XHTML: You can use these tags: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>