nanog mailing list archives
Re: Ingress filtering on transits, peers, and IX ports
From: Brandon Martin <lists.nanog () monmotha net>
Date: Wed, 14 Oct 2020 06:51:42 -0400
On 10/13/20 9:40 PM, Nikolas Geyer wrote:
Tl;dr - definitely don’t accept your own prefix from the site it originated from, or other sites that have internal connectivity. But also don’t assume that an AS has a full-mesh of internal connectivity behind it and shouldn’t accept its own prefixes for any reason.
While I can understand some reasons why people don't do it, I believe the proper thing to do in this case is have multiple ASNs - one for each island.
They obviously have distinct routing policy and thus qualify at least under ARIN policy AFAIK. With AS4, we don't have any imminent shortage of ASNs and don't need to be particularly stingy about allocating them as long as a need is met.
-- Brandon Martin
Current thread:
- Ingress filtering on transits, peers, and IX ports Brian Knight via NANOG (Oct 13)
- Re: Ingress filtering on transits, peers, and IX ports Mel Beckman (Oct 13)
- Re: Ingress filtering on transits, peers, and IX ports Matt Harris (Oct 13)
- RE: Ingress filtering on transits, peers, and IX ports Jean St-Laurent via NANOG (Oct 13)
- Re: Ingress filtering on transits, peers, and IX ports Brian Knight via NANOG (Oct 13)
- Re: Ingress filtering on transits, peers, and IX ports Marcos Manoni (Oct 13)
- Re: Ingress filtering on transits, peers, and IX ports Nikolas Geyer (Oct 13)
- Re: Ingress filtering on transits, peers, and IX ports Brandon Martin (Oct 14)
- Re: Ingress filtering on transits, peers, and IX ports Brian Knight via NANOG (Oct 14)
- Re: Ingress filtering on transits, peers, and IX ports Brian Knight via NANOG (Oct 14)
- RE: Ingress filtering on transits, peers, and IX ports Jean St-Laurent via NANOG (Oct 15)
- Re: Ingress filtering on transits, peers, and IX ports Brian Knight via NANOG (Oct 19)
- Re: Ingress filtering on transits, peers, and IX ports Randy Bush (Oct 19)
- Re: Ingress filtering on transits, peers, and IX ports Baldur Norddahl (Oct 20)
- Re: Ingress filtering on transits, peers, and IX ports Brian Knight via NANOG (Oct 22)
- RE: Ingress filtering on transits, peers, and IX ports adamv0025 (Oct 23)
- Re: Ingress filtering on transits, peers, and IX ports Tim Durack (Oct 20)
- Re: Ingress filtering on transits, peers, and IX ports Marcos Manoni (Oct 20)
- Re: Ingress filtering on transits, peers, and IX ports Mel Beckman (Oct 13)