Hello, I've been working on this for over a week. I don't think its working the way it should. Here's what I'm trying to do: I have a Windstream dsl router with wireless > 192.168.1.100 | | Centos 6.8 server eth0 > 192.168.1.110 > gateway 192.168.1.111 eth1 > 192.168.1.111 > gateway 192.168.1.100 | | Switch > other computers and devices > gateway 192.168.1.110 I want to send all internal traffic through 192.168.1.110, all external traffic through 192.168.1.111, then back through 192.168.1.110. I did an iptables -t nat -A POSTROUTING -o eth1 -j MASQUERADE Issues: Outside connectivity for all other computers and devices only works if eth0 is also connected to the router, server works Iptraf shows no traffic on eth1 Hope I haven't confused you as I have thoroughly confused myself. TIA TE Dukes _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx https://lists.centos.org/mailman/listinfo/centos