Dell PowerSwitch S5212F-ON OS10 Enterprise Edition User Guide Release 10.4.3.0 - Page 906

Parameters Default Command Mode Usage Information Example access-list-name - Enter the name of an IPv4 access list. A maximum of 140 characters. Not configured CONFIGURATION None OS10(config)# ip access-list acl1 Supported Releases 10.2.0E or later ip as-path access-list Create an AS-path ACL filter for BGP routes using a regular expression. Syntax ip as-path access-list name {deny | permit} regexp-string Parameters • name - Enter an access list name. • deny | permit - Reject or accept a matching route. • regexp-string - Enter a regular expression string to match an AS-path route attribute. Defaults Command Mode Usage Information Not configured CONFIGURATION You can specify an access-list filter on inbound and outbound BGP routes. The ACL filter consists of regular expressions. If a regular expression matches an AS path attribute in a BGP route, the route is rejected or accepted. The AS path does not contain the local AS number. The no version of this command removes a single access list entry if you specify deny and a regexp. Otherwise, the entire access list is removed. The question mark (?) character is not supported in the regular expressions. All other special characters are supported. When you are using backslash(\) or double quotes (") in the regular expression, precede these characters with backslash(\). For example, enter \\ or \". Example OS10(config)# ip as-path access-list abc deny 123 Supported Release 10.3.0E or later ip community-list standard deny Creates a standard community list for BGP to deny access. Syntax ip community-list standard name deny {aa:nn | no-advertise | local-AS | noexport | internet} Parameters • name - Enter the name of the standard community list used to identify one more deny groups of communities. • aa:nn - Enter the community number in the format aa:nn, where aa is the number that identifies the autonomous system and nn is a number the identifies the community within the autonomous system. • no-advertise - BGP does to not advertise this route to any internal or external peer. • local-AS - BGP does not advertise this route to external peers. 906 Access Control Lists