nanog mailing list archives
Re: Quick BGP peering question
From: Jack Bates <jbates () brightok net>
Date: Wed, 03 Jan 2007 11:31:35 -0600
James Blessing wrote:
Very simply : Would you accept traffic from a customer who insists on sending 0 prefixes across a BGP session?
I just ran through a related issue with one of my upstream peers. It appears that they have a RPF strictly enforced policy, yet during the process of renumbering a customer of a customer from another ISPs space, they were wanting to throw all traffic (our IPs and the other provider's) out to us.
It comes down to a simple question of policy, and if you are going to mandate how your customers route proper, valid traffic. I about pulled the plug in my situation, but finally got it sorted out. Thank goodness some routers can allow exceptions to RPF and other providers just use ACLs instead.
0 prefixes is no different than partial prefixes. Asymmetric routing should not be a crime on the Internet because "I don't like it" or "but basic RPF is easier and you're doing something funky anyways".
Jack Bates
Current thread:
- Quick BGP peering question James Blessing (Jan 03)
- RE: Quick BGP peering question Neil J. McRae (Jan 03)
- Re: Quick BGP peering question James Blessing (Jan 03)
- Re: Quick BGP peering question Bill Woodcock (Jan 03)
- Re: Quick BGP peering question Jeff Aitken (Jan 03)
- Re: Quick BGP peering question James Blessing (Jan 03)
- Re: Quick BGP peering question Jeff Aitken (Jan 03)
- Re: Quick BGP peering question Bill Woodcock (Jan 03)
- Re: Quick BGP peering question Jack Bates (Jan 03)
- RE: Quick BGP peering question Neil J. McRae (Jan 03)