From: wing_lam@jossynergy.com
Date: Wed Jun 11 2003 - 22:53:35 GMT-3
Hi, Biondino,
try use ^\(65078\)$, you need "\" to escape "(" from represent as a phase.
BBD (Big Black Dog)
"Biondino, Joseph"
<joseph.biondino@au. To: ccielab@groupstudy.com
unisys.com> cc:
Sent by: Subject: BGP AS-Path filtering
nobody@groupstudy.co
m
06/12/2003 07:39 AM
Please respond to
"Biondino, Joseph"
Hi there;
Last night I was doing a BGP practice LAB where by one of the requirements
was to filter routes advertised to an external neighbour that didn't
originate in the local AS (AS200).
An easy request it would seem, but the problem was that I was running
confederations thus the ip as-path access-list reg exp of ^$ for local
routes wouldn't work as in the BGP table of the advertising router the as
path of routes in the same AS but different sub-AS was (65078) ?
Is there a way to filter out these routes??
Kind regards,
Joseph Biondino
Network Specialist
UNISYS
Network Command Centre
115 - 117 Wicks Rd
North Ryde NSW 2113
Phone: 02 9857 3149
Group: 02 9390 1107
Fax: 02 9857 3122
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