[nsp] regexp question

[BirsenO at garanti.com.tr]

Hello Peter

You can try
^(1234_)+([0-9]_)*$

Birsen

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net]On Behalf Of Peter L
Sent: Tuesday, April 06, 2004 1:05 PM
To: cisco-nsp at puck.nether.net
Subject: [nsp] regexp question


Hi
I have a question regarding a regular expression I'm trying to fix and
hopefully someone that's excellent at regular expressions can help me. I
would like to accept everything from a peer + everyting from the ASs his
peering with directly. Example:
Accept:
1234 1234
1234 567
1234 1234 655
1234 654 654
Deny:
1234 654 989
or
1234 567 567 2323
ando so forth..
So far I have:
^(1234_)+([0-9]+)*$
This accepts everthing except when the second AS is prepended(1234 654 654).
Is i possible to fix this in one expression? Otherwise I have to setup
filters for every AS and that would not be very dynamic.

Thank you
Peter

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