[Bug 263974] ipfw_nat64lsn reply destination mac address error

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From: <bugzilla-noreply_at_freebsd.org>
Date: Sun, 15 May 2022 23:09:55 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=263974

--- Comment #2 from Jim B. <jpb@jimby.name> ---
I replaced the FreeBSD 13.0-p11 firewall with an instance of the BSDP Router
Project running on Qemu.

BSDRP Platform:
FreeBSD router.bsdrp.net 14.0-CURRENT FreeBSD 14.0-CURRENT BSDRP-AMD64  amd64

The architecture and ruleset were unchanged.

The nat64lsn instance works correctly and the communication is successful.

sysctl net.inet.ip.fw.nat64_direct_output=0  is required for the ruleset shown.

It seems that the problem is narrowed to ipfw_nat64 13.0 code.

I will check again with FreeBSD 13.1 when it drops.

Jim B.

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