nanog mailing list archives
Re: uPRF strict more
From: Mark Tinka <mark@tinka.africa>
Date: Wed, 29 Sep 2021 13:54:00 +0200
On 9/29/21 02:47, Randy Bush wrote:
do folk use uPRF strict mode? i always worried about the multi-homed customer sending packets out the other way which loop back to me; see RFC 8704 §2.2
We do loose-mode for BGP customers, regardless of whether they are single- or multi-homed.
We do loose-mode on transit routers, as they hold a full table. We do strict-mode for stub DIA customers. We do loose-mode for multi-homed DIA customers. We don't do uRPF on peering routers, as they don't hold a full table.
do vendors implement the complexity of 8704; and, if so, do operators use it?
Juniper support Feasible Paths, and we use it with no issue. We don't use Cisco in this role anymore, so not sure. Mark.
Current thread:
- Re: uPRF strict more, (continued)
- Re: uPRF strict more Mark Tinka (Sep 29)
- Re: [External] Re: uPRF strict more Hunter Fuller via NANOG (Sep 30)
- Re: [External] Re: uPRF strict more Mark Tinka (Sep 30)
- Re: [External] Re: uPRF strict more Valdis Klētnieks (Sep 30)
- Re: [External] Re: uPRF strict more Mark Tinka (Sep 30)
- Re: [External] Re: uPRF strict more Andrew Smith (Sep 30)
- Re: [External] Re: uPRF strict more Sabri Berisha (Sep 30)
- Re: [External] Re: uPRF strict more Saku Ytti (Sep 30)
- RE: [External] Re: uPRF strict more Brian Turnbow via NANOG (Sep 30)
- Re: uPRF strict more Mark Tinka (Sep 29)