I have a linksys wrt54g wireless router and a small home network which lost power the other day and when I restarted my computers they pulled the wrong IP's and so the one I'm using for a web server and mail server was not getting the proper ports forwarded. I know I can disable the dhcp server  in the router but how do I set which computer gets which IP I just need one to have a set IP address the others don't matter.