Hey guys,

I've got a problem that's really stumping me.

I've got a Ubuntu Server Linux router that I've got 2 internet connections hooked to. One of them is DSL and the other is cable.

What I'd like to do is have everything go through the DSL connection EXCEPT for one desktop, I'd like that system to go through cable for everything.

Here's a diagram of how I've got things set up.

http://www.tunasandwich.net/images/u...%20diagram.png

I don't have any more expansion slots on the mainboard of my server for another NIC, also I do a lot of file transferring between a laptop and the desktop I want on the cable connection so I don't want that slowing down the rest of my network.

Anybody have any ideas?

I've got both providers set up in the providers file and I've got everything going through the DSL connection right now. So far everything I've tried has stopped the desktop from connecting out at all.

Your diagram suggests the DSL connection is using both PPP and DHCP, this does not make sense.

Add an entry in /etc/iproute2/rt_tables for a new routing table. Use "ip rule" to select it based source IP of 102.168.0.20 or that assigned to eth1, and set the appropriate default route for the cable connection on the new table.

Since you are using DHCP you will need edit the DHCP client configuration.

Sorry for the PPP confusion, I was only meaning that the IP for my DSL connection is dynamic.

Also, I am unsure exactly what it is that I should do with the rt_tables file, also, if I add an entry to this file will it not be erased next time shorewall is restarted??