You don't create a static IP, you either have a dedicated public ip address that never applychanges from your ISP or you have a dynamically assigned one from your ISP.
Apply the public external static ip address issued by your ISP to the external or WAN interface on your router. Forward the necessary protocol and port pair to the internal private network address of the server (so anyone connecting to your external static ip through the internet using TCP/IP on port blah will get passed to your server to deal with.) Allow requests for that protocol and port in your firewall.
hollystyles
Veteran Poster
1,182 posts since Feb 2005
Reputation Points: 262
Solved Threads: 68
Attracting trolls now, so thread closed as already solved and two years old
happygeek
Freelance Word Punk
27,465 posts since Mar 2006
Reputation Points: 1,457
Solved Threads: 55