DMZ Host
The DMZ Host setting can allow one local user to be exposed to the Internet with no firewall protection. When a local user wishes to use some special-purpose service, such as an Internet game or Video-conferencing, set the dedicated DMZ Port and click the Apply button.
If DMZ Port is enabled and only one PC is connected to the DMZ port, the DMZ IP address will be assigned automatically if Assigned by the DMZ Port is selected. If two or more PCs are connected to this port, the Router will choose one PC as the DMZ dedicated PC. Of course, users can select specified PC by specifying an IP Address behind the DMZ Port or a MAC Address behind the DMZ Port from the DMZ Host table. (This table will show all the IP/MAC addresses connected to this dedicated DMZ port).