Ubuntu 11.04 1 NIC to LAN 1 NIC to a 3g router. How to make the internet work?

[AstroTurf]

Hi,

I am currently trying to test connection speeds in my area between Vodacom, CellC and 8ta to see which is faster and more stable.
Only problem is I have no idea how to set up Ubuntu to use the 3g router as the internet connection.
I am also trying to keep it as close to our proxy server's settings as possible so that once it is set up I can go test it there with each sim.

How do I go about setting this up?

I have tried the following (ip's are changed from what I am using) but when I connect the router it prevents me from connecting to the LAN and I still can't get onto the internet.
The router is already configured to run on vodacom and 3g is active and working.

Router IP

LAN (NIC 0)
IPv4> 111.111.0.11
Subnet> 255.255.255.0
Gateway> 111.111.1.1
DNS> My DNS servers IP Addresses (eg 111.111.0.3 111.111.0.6)
Search Domains> Windowsdomainname.local

3g Router (NIC 1)
IPv4> 111.111.1.11
Subnet> 255.255.255.0
Gateway> 111.111.1.1
DNS>
Search Domains>
Routes> Use this connection only for resources on its network is ticked (no actual routes specified).

How do I get this to work?

Thank you in advance

[stricken]

NIC0 is on a different subnet than the gateway and NIC1

you need to route between them..

something like (off the top of my head): route add net 111.111.0.0 netmask 255.255.255.0 gw 111.111.1.1 dev eth0 (or whatever device NIC0 is)

[AstroTurf]

Actually managed to get both working at the same time without causing hassles, still trying to get internet to go through the 3g router though.

[AstroTurf]

NIC0 is on a different subnet than the gateway and NIC1

you need to route between them..

something like (off the top of my head): route add net 111.111.0.0 netmask 255.255.255.0 gw 111.111.1.1 dev eth0 (or whatever device NIC0 is)

Tried that in terminal and it did not like the command (1.1 dev eth0
net: Unknown host)

Tried adding it via the edic connections button, NIC0>Routes as follows:
Address 111.111.0.0
Netmask 255.255.255.0
gateway 111.111.1.1 But this made no difference.
Both Networks are running but no internet.

[AstroTurf]

No Help?