ok, so i go to the linksys set up thingy and click on the DMZ Host tab.

then it says:
This feature sets a local user to be exposed to the Internet. Any user on the Internet can access in/out data from the DMZ host. Enable the feature as you wish to use special-purpose service.

then it gives me a DMZ Host IP address with a box as the last group of numbers i can type in.

then there is the apply button.

what do i do?