port forwarding

K, here is the problem. I have a device on my network at 10.0.0.30 I need to get to it from an outside address on a certain port lets use 2222. My static ip is 192.168.0.234 (not really but lets use it 🙂 ). So what do I have to do to my NT machine (With Proxy 2.0) to make it so that when I come into 192.168.0.234 on port 2222 I get to 10.0.0.30 on port 2222