From: Richard Dumoulin (richard.dumoulin@vanco.es)
Date: Wed May 26 2004 - 17:40:22 GMT-3
If you want to match also routes from AS 100 and AS 400 then I think it
should be:
ip as-path list 1 permit ^(100_)+(400_)*
This should match 100, 100 100, 100 100 100, 100 400, 100 100 400 400, 100
400 xxx xxx, etc ...
--Richard
-----Original Message-----
From: Richard Dumoulin
Sent: miircoles, 26 de mayo de 2004 22:31
To: Yasser Aly; ccielab@groupstudy.com
Subject: RE: Regular Expressions ( Match on Prepended routes )
Ip as-path access-list 1 permit ^(100_)+(400_)+
--Richard
-----Original Message-----
From: Yasser Aly [mailto:blackyeyes00@hotmail.com]
Sent: miircoles, 26 de mayo de 2004 22:06
To: ccielab@groupstudy.com
Subject: Regular Expressions ( Match on Prepended routes )
Dear All,
Suppose you have the following scenario:
As 300 --- AS 100 ---- AS 400
You control AS 300 and asked to match on routes received from AS 100 and its
customers taking into consideration if any one of them prepended his routes
before sending it.
What would the regular expression look like ?
Thanks for your input.
Yasser
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