I have 2 dsl routers (hence 2 separate IPs) connected to 1 Linux box. Right now, I have only one of the routers assigned as a gateway. So I can only use the bandwidth of 1 of them to transmit data. How can I set Linux up so that both can act as gateways (and also accurately channel traffic ie. requests coming from 1 router/IP will reply correctly from the same router/IP). And can I use both of the routers to balance the load of outgoing requests from my server?
I am running Redhat 6.0.