BGP AS Path Access List and Filter List Question

From: Albert Ip (ipwaikuen@yahoo.com.hk)
Date: Fri Jun 16 2006 - 06:07:31 ART


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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