[NANOG] Re: How can the IP spoofing problem be solved within a country?

[Tim Howe via NANOG <nanog () lists nanog org>]

BCP38 is the solution, but getting networks to actually implement it is a challenge.
It can be achieved in a few different ways.

When you say it is a problem for multi-homed networks, I think you may
be conflating BCP38 with uRPF specifically.  BCP38 can be done without
using uRPF, and I think it usually is.  uRPF may cause issues with
multi-homed networks from what I understand.

--TimH

On Sat, 5 Apr 2025 18:07:57 +0300
T. Fırıncı via NANOG <nanog () lists nanog org> wrote:

> I thought that bcp38 could be a solution, but some people said that
> this solution would create a problem in multihome networks.
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