Hello All, I'm new to iptables so go easy on me. I'm using Smoothwall OS as my router / firewall. I have two internal networks. I need the first network to have access to the second network that is NATed to the first network. The first network has default route to the Smoothwall router. Is there anyway to tell iptables that if the destination is the second network to NAT or direct the packet the internal router (192.168.48.1)? ISP | XXX.XXX.XXX.XXX DHCP eth1 Smoothwall Router / Firewall 192.168.48.98/20 eth0 | | _______________________________________ |First Network |Second Network | | 192.168.48.0/20 192.168.48.1/20 Workstations Internal Router GW 192.168.48.98 192.168.0.0/20 PS I also posted this on Smoothwalls list and was told they can't help. Please help!! Thanks, David -- This message has been scanned for viruses and dangerous content by www.Computer-Medic.us, and is believed to be clean. support@xxxxxxxxxxxxxxxxx