RE: bgp prefix filtering [bcc][faked-from]

From: marvin greenlee (marvin@ccbootcamp.com)
Date: Tue Apr 05 2005 - 23:16:00 GMT-3


You could just use ^54_

Marvin Greenlee, CCIE#12237, CCSI# 30483
Network Learning Inc
marvin@ccbootcamp.com
www.ccbootcamp.com (Cisco Training)

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of John
Matus
Sent: Wednesday, April 06, 2005 1:39 AM
To: ccielab@groupstudy.com
Subject: bgp prefix filtering [bcc][faked-from]
Importance: Low

question.........
if you wanted an as-path expression to account for an AS with a connected
neighbor and with any amount of additional hops - i.e. 54 100 200 236

2 what would that expression be?

i know that to get directly connected to AS 54 it would be ^54_[0-9]*$, but
what if you wanted to account for any number of additional hops <AS's>
weather they exist or not <zero or more>?

thanks!!



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