I've got an odd problem where I've got two NICs on the same network and I want all traffic to one IP to go out one interface and all other traffic to use the second interface. I'm going to try an simplify my actual setup, because a lot of it makes no difference to this post... I know this has to be a iptables sort of setup since the routing table can only make a difference on different networks and not based on looking for a specific IP address. The question is: eth0 IP: 10.1.1.1 eth1 IP: 10.1.1.2 target: 10.1.1.3 (these IPs are just examples, there are no hard-fast rules surrounding the other possibilities) How do I make sure this goes out eth1 instead of eth0? Do I use the mangle rule with the physdev module? I feel like I'm overlooking something or forgetting my basic network ideas here... - Gareth
