Manuel Bouyer <bouyer@antioche.lip6.fr> écrit :
> On Feb 15, Olli wrote
> > 
> > -> traceroute: Waring: Multiple interfaces found; using 192.168.1.1 @
> > de0
> 
> Actually I think you should use 'traceroute -i ppp0'. Otherwise traceroute
> use the wrong source address, that's why it doesn't get anything back.
> But this is not related to your ipnat problem (I don't think traceroute
> can work throuh ipnat).

Sure it does (NetBSD 1.3.3):

traceroute to ftp.netbsd.org (204.152.184.75), 30 hops max, 40 byte packets
 1  babafou (192.168.0.1)  1.360 ms  1.050 ms  1.037 ms
 2  gw.paris-38.cybercable.fr (212.198.38.1)  45.383 ms  51.870 ms  38.522 ms
 3  troglodyte.cybercable.fr (212.198.0.2)  24.087 ms  18.629 ms  14.117 ms
[...]

My laptop (which has IP address 192.168.0.2) has no problem going
through the NAT box (192.168.0.1 on one side, dynamic IP address
allocated by DHCP on the other).