On Monday 20 January 2003 08:59, Raymond Leach wrote: > Hi > > I have a problem with NAT after recompiling iptables and my kernel. > > This line gives an 'invalid argument' error: > iptables -t nat -A PREROUTING -i eth0 -s 192.168.0.0/24 -j SNAT > --to-source 196.4.160.2 > > Is there something wrong with the above line, or is there something > wrong with my kernel or iptables? > > kernel version = 2.4.20 - 'Full Nat' is enabled > patch-o-matic 'time' patch applied > iptables version = 1.2.7 > > There were no errors during compile. Although, after rebooting the > machine complains about a missing map file. > > Regards > > Ray Shouldn't be specified an output interface/address with the -o option? Moreover, I think that if you want to do source nat, you should do it in the POSTROUTING chain. Try this (the existence of another network card eth1 is presumed): iptables -t nat -A POSTROUTING -i eth0 -o eth1 -s 192.168.0.0/24 -j SNAT --to-source 196.4.160.2 -- Fabio Corneti fabio@gekolab.it