AFAIK, NOT (!) operator isn't currently supported in AS-PATH Regex. Moreso based on your requirement you should only block routes originating form AS100, I don't understand the need for regex to accept routes transiting AS100 (unless you explicity block it elsewhere)?
The below should suffice your requirement, set policy-options as-path No100orig ".* 100" Thanks & Regards, Tarique A. Nalkhande -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Judah Scott Sent: Thursday, August 13, 2009 1:26 AM To: Fahad Khan Cc: [email protected] Subject: Re: [j-nsp] AS-path Without testing It seems like: set as-path 100not1000orig ".* 100 .* (!1000)$" should work. Thanks, J Scott On Wed, Aug 12, 2009 at 11:24 AM, Fahad Khan <[email protected]> wrote: > Dear Folks, > > what should be the As-path reg expression for getting the routes transiting > AS 100 and not originating from AS 100???? > regards > > -- > Muhammad Fahad Khan > IT Specialist > Global Technology Services, IBM > [email protected] > +92-321-2370510 > +92-301-8247638 > http://www.linkedin.com/in/muhammadfahadkhan > http://fahad-internetworker.blogspot.com > _______________________________________________ > juniper-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/juniper-nsp > _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
