DSL-514 ADSL Router User’s Guide
DMZ
If you have a client PC that cannot run Internet applications properly from behind the DSL-514, then you can set the client up to unrestricted Internet access. It allows a computer to be exposed to the Internet. This feature is useful for gaming purposes. Enter the IP address of the internal computer that will be the DMZ host. Adding a client to the DMZ (Demilitarized Zone) may expose your local network to a variety of security risks, so only use this option as a last resort.