Virtual Server Settings - D-Link DI-804V Owner's Manual

IP Address Pool Range
The IP address pool contains the range of the IP address that will
automatically be assigned to the clients of your network.
Default setting is from 192.168.2.2 to 192.168.2.100.
IP Address Reservation
You can use IP address reservation option to give particular computers on
your network the same static IP address every time the computer is turned on.

Virtual Server Settings

Virtual server settings allow clients on the Internet to access your LAN via
the Internet. You can use the IP mapping function to access an FTP server or
Telnet server etc. remotely through Internet.
DMZ function can be applied to a single client behind the VPN Gateway to
expose it to the Internet and ensure complete Internet application
compatibility even if specific ports are not known. If you would like to
enable DMZ function, enter an IP address into the DMZ IP field. The value
of '0' means that the DMZ function is disabled.
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