From: firstname jim (firstnamejim@gmail.com)
Date: Sat May 13 2006 - 20:38:00 ART
Hi guys,
A Lab prompted this question: suppose I have a confederation and 2 sub-as,
{other as's} --- [ (as100) - (as101 R1)]AS1 ---- [as2(R2)]
In short, subnet
1.0.0.0/24 from as100
1.0.1.0/24 from asl101
some other subnets too,
How do I make sure that R2 in as2 only get routes originated from AS1?
The requirement is to only do filter on R1.
I am looking for some as-path regular expression help, so far I have tried
(on R1):
ip as-path 11 permit ^$
ip as-path 11 permit (100) ! this works, but I think it includes more
un-wanted routes
These are the different ways I tried, they don't work. A better idea
anyone?
ip as-path 11 permit ^100$
ip as-path 11 permit ^(100)$
ip as-path 11 permit _(100)$
TIA
-- Jim Li 614-376-2865
This archive was generated by hypermail 2.1.4 : Thu Jun 01 2006 - 06:33:21 ART