Tuesday, January 24, 2023

Re: OpenBSD routing - detects WAN IP links back to firewall?

On 1/24/23 13:53, Polarian wrote:

> I believe its simply just OpenBSD checks its routing table and realises
> that the destination IP address is the WAN IP for itself, and thus keeps
> the packet, which makes sense, that is what is meant to happen but some
> routers don't seem to do this.
Any router worthy of that name should do that. What you describe could
happen if your ISP did CGNAT.

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