Re: ipfw: setsockopt(IP_FW_NAT44_XCONFIG): Invalid argument

From: Alexander V. Chernikov <melifaro_at_ipfw.ru>
Date: Sun, 12 Sep 2021 12:01:04 UTC

> On 12 Sep 2021, at 11:51, Yuri Tcherkasov <tyv@uats.od.ua> wrote:
> 
>  ipfw nat 1 config ip XXX.XXX.XXX.xx reset unreg_only same_ports

Looks pretty close to https://reviews.freebsd.org/D23450 <https://reviews.freebsd.org/D23450>

I guess rebuilding the ipfw(8) binary should help.