Thanks Vignesh! >iptables -t nat -A POSTROUTING -s 192.168.1.0/24 -o $WANIF -j SNAT --to-source a.b.c.241 >Here I am assuming that 192.168.1.0/24 is your internal network and you want to allow all the machines. If you want to allow only a few machines, put a comma separated "address[/mask]" list. Solved it for me... in the end I used: iptables -t nat -I POSTROUTING -s 192.168.1.96/27 -o ppp0 -j SNAT --to-source a.b.c.241 and matched the range to my DHCP leases. (96 to 127) Cheers, Andrew -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html