tech-net: Re: GIF-Tunnel through IPfilter NAT?

Subject: Re: GIF-Tunnel through IPfilter NAT?
To: Hubert Feyrer <feyrer@rfhs8012.fh-regensburg.de>
From: Darren Reed <darrenr@reed.wattle.id.au>
List: tech-net
Date: 02/13/2000 01:10:36

In some email I received from Hubert Feyrer, sie wrote:
> 
> 
> Hi,
> 
> I wonder if I IPfilter will let through IPv6-in-IPv4 pkgs when configured
> to NAT? I'd love to get a IPv6 tunnel to my home, but my NATing router
> still runs NetBSD 1.4.2, and I can't upgrade. 

If you have a line like "map de0 0/0 -> 0/32" (no proto section) then it
will translate tunnel'd (non-udp/tcp) packets too.