Setting a computer to a static IP on SOHO 6

Hello,

I am tasked to setting a static IP to one computer on the Watchguard SOHO 6. I am not really sure how to go about this. I went into the options on the router through a browser and clicked on Routes. I added one and it asked if I wanted it to be a HOST or a NETWORK. It then asked for a Gateway IP (i am assuming this is the router's IP) and then an IP address...what goes here?

I am hoping that I am doing this correctly. Any helpw ould be great.

Thanks,

Dan

If they are running windows XP:
right click on my network places and click properties
right click on the network card and click properties
select Internet protocol TCP/IP and click properties
there you can select specify IP and enter the static IP you want