To direct traffic as you are suggesting you need an exit interface to send the traffic to.
If you are sitting on FastEthernet 0/0 with an IP of 10.0.0.1 255.255.255.0
You will need an exit interface such as FastEthernet 0/1 with an IP address of 192.168.0.1 255.255.255.0
You would then create a static route like ip route 0.0.0.0 0.0.0.0 FastEthernet 0/1 (or you need a next hop address which would be the far end on the other side of the exit interface)
This will take all traffic and send it out FastEthernet 0/1
This is just an example. To customize for you we need to know some more specifics on what you are trying to do.