regex question for bgp

From: John Matus (jmatus@pacbell.net)
Date: Mon Oct 11 2004 - 23:34:15 GMT-3


how would you solve the following requirement?

R1 is in AS 1 and are connected to a bb router in AS 5. you want to implement
a filtering policy on R1 to only accept routes that come from either AS 5 or
an AS connected directly to AS 5. so AS 5 can be in the as path as well as
one more AS. how would you create a regex to satisfy this requirement? i'm
pretty stumped <not a regex pro>

Regards,

John D. Matus
MCSE, CCNP
Office: 818-782-2061
Cell: 818-430-8372
jmatus@pacbell.net



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