How to change my phones NAT to open?

I'm using my droid for internet since we live in the middle of nowhere, the speeds are fine on gaming, but my NAT type is set to moderate so it takes a while to find a game. How can I change my NAT type to open, because it's different with a phone?How to change my phones NAT to open?
You have to open ports on the computer you are using to share the connection. (In your firewall)



Here is a list of them, but sometimes it still doesn't work:

http://support.microsoft.com/kb/908874