nanog mailing list archives
Re: AS prepending
From: Jon Lewis <jlewis () lewis org>
Date: Fri, 8 Apr 2005 11:27:13 -0400 (EDT)
On Fri, 8 Apr 2005, Philip Lavine wrote:
I am prepending my AS 3 times to the un-preferred ISP. Both ISP's are my peers.
Ok...I just wanted to be sure you weren't prepending their ASN in which case loop detection would stop them from accepting your routes.
The un-preferred ISP claims the see my advertisement yet they do not add it to their routing table (suggests filtering??). They claim all the
Does the un-preferred ISP actually have no route back to you, or just not the one you sent to them? Depending on how things are setup, they may prefer your preferred ISP for reaching you. If you want "un-preferred ISP" to reach you directly, but still be "un-preferred", you may want to see if they have communities you can tag your advertisement with that would cause them to prepend your routes when propogating them to their peers. ---------------------------------------------------------------------- Jon Lewis | I route Senior Network Engineer | therefore you are Atlantic Net | _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________
Current thread:
- AS prepending Philip Lavine (Apr 08)
- Re: AS prepending Patrick W Gilmore (Apr 08)
- Re: AS prepending Hank Nussbacher (Apr 09)
- Re: AS prepending Jon Lewis (Apr 08)
- <Possible follow-ups>
- Re: AS prepending christian . macnevin (Apr 08)
- Re: AS prepending Philip Lavine (Apr 08)
- Re: AS prepending David Gethings (Apr 08)
- Re: AS prepending Jon Lewis (Apr 08)
- Re: AS prepending Pete Templin (Apr 08)
- Re: AS prepending Philip Lavine (Apr 08)
- Re: AS prepending David Gethings (Apr 08)
- Re: AS prepending David Barak (Apr 08)
- Re: AS prepending Patrick W Gilmore (Apr 08)