How do I route through a computer with two NICs (from internet to computer to LAN)?

Question

I have a computer (computer 1, XPe SP2) with two network cards (A and B). Network card A (192.168.0.3) connects via static IP to another local device I'll call the box (192.168.0.2). Card B connects to the internet and I know it's IP so I can ping it from computer 2 (XPpro SP3) through the internet. Computer 2 has a program that needs to connect to the box. Firewalls are not an issue and windows firewall is disabled on computer 1. I just need to know how to setup the network connections (Bridge, ICS, ect) on computer 1 (and maybe computer 2) so that I can enter some IP address on computer 2 and have it reach the box.

Answer 1

I have don't this but I was using a program to route it though.

Winroute was the name of the program but I don't know if you can still get it. it was $1000 so it was not cheap

Answer 2

You need to enable ICS (internet connection sharing) on computer 1.

That will supply all the "routing" you need.

Here is the step by step.

http://support.microsoft.com/kb/314066

Thats all you should need to have internet on both machines

While your at it, upgrade to SP3 for BOTH machines!  Its just an update!