From: Victor Cappuccio (cvictor@protokolgroup.com)
Date: Fri Jun 16 2006 - 12:24:00 ART
Hi Albert IMHO the Regular Expression that you posted will match, but it
will not match routes for the internal 254 Routes couse the _underscore_
that you have in the expression
So I think that the regular expression should be ^254(_[0-9]*)$
Just my opinion here
Regards
Victor.
-----Mensaje original-----
De: nobody@groupstudy.com [mailto:nobody@groupstudy.com] En nombre de Albert
Ip
Enviado el: Viernes, 16 de Junio de 2006 05:08 a.m.
Para: ccielab@groupstudy.com
Asunto: BGP AS Path Access List and Filter List Question
Hi All,
Two BGP routers, BB1 and R1, BB1 in AS 254 and R1 in
AS 55, both connected in same LAN subnet.
Question 1:
In future, there will be another AS directly connect
with AS 254. Configure R1 accept BGP routes from BB1
that originate from AS 254 and any other AS directly
connected to AS 254. Limit to use one filter list
only.
Answer:
R1
ip as-path access-list 1 permit ^254_[0-9]*$
router bgp 55
nei 150.100.1.254 filter-list 1 in
Is this answer correct????
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