[nsp] BGP RegEx

[james]

deny ^1_2$
permit  ^1_[0-9]*$

This will allow all as paths that start with AS 1
and contain 2 as paths, except the path ^1_2$



----- Original Message ----- 
From: "John Pang" <whoami1234_1234 at yahoo.com>
To: <cisco-nsp at puck.nether.net>
Sent: Friday, March 12, 2004 11:24 AM
Subject: [nsp] BGP RegEx


: Hi everyone,
: 
: I am trying to do BGP filtering and is wondering if
: anyone can help me out on the following issue.
: 
: Assuming I have an AS-PATH as follows:
: 
: 1 2
: 1 3
: 1 4
: 
: For route-maping, is it possible to write a regex that
: filters out only "1 2" but accepts everything else
: that is "1 *" ?
: 
: Thanks,
: 
: __________________________________
: Do you Yahoo!?
: Yahoo! Search - Find what you're looking for faster
: http://search.yahoo.com
: _______________________________________________
: cisco-nsp mailing list  cisco-nsp at puck.nether.net
: https://puck.nether.net/mailman/listinfo/cisco-nsp
: archive at http://puck.nether.net/pipermail/cisco-nsp/