Originally Posted by DigitalPhreak
You have asked an extremely broad question. You need to give more information. I barely understand exactly what you are needing. It sounds like you have a server configured as your "router". And it is sharing its connection with the rest of the network. If that is the case it may not be a very easy task at all to reconfigure your server and introduce a router, depending on the services your server is providing the network.
But really Im just guessing at what your problem might be.
I agree. I thought he was speaking of 2 computers sharing 1 IP address.
2 computers with different IP's can share 1 external IP
2 computers on the same network, subnet, cannot share 1 IP, they'd conflict.