Reference Guide

278 | Access Control Lists (ACL)
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Example
FTOS#show route-map
route-map firpo, permit, sequence 10
Match clauses:
Set clauses:
tag 34
FTOS#
Related
Commands
AS-Path Commands
This feature is supported on E-Series only, as indicated by this character under each
command heading:
e
The following commands configure AS-Path ACLs.
• deny
• ip as-path access-list
• permit
• show config
• show ip as-path-access-lists
deny
e
Create a filter to drop routes that match the route’s AS-PATH attribute. Use regular
expressions to identify which routes are affected by the filter.
Syntax
deny as-regular-expression
Parameters
route-map Configure a route map.
as-regular-expression
Enter a regular expression to match BGP AS-PATH attributes.
Use one or a combination of the following:
• . = (period) matches on any single character, including white space
• * = (asterisk) matches on sequences in a pattern (zero or more
sequences)
• + = (plus sign) matches on sequences in a pattern (one or more
sequences)
• ? = (question mark) matches sequences in a pattern (0 or 1
sequences). You must enter an escape sequence (CNTL+v) prior
to entering the ? regular expression.
• [ ] = (brackets) matches a range of single-character patterns.
• ^ = (caret) matches the beginning of the input string. (If the caret is
used at the beginning of a sequence or range, it matches on everything
BUT the characters specified.)
• $ = (dollar sign) matches the end of the output string.
• _ = (underscore) matches a comma (,), left brace ({), right brace (}),
left parenthesis, right parenthesis, the beginning of the input string,
the end of the input string, or a space.
• | = (pipe) matches either character.