D-Link DSL-2750 - Dmz

38D-Link DSL-2750B Wireless N300 ADSL2+ Modem Router User Manual
Section 3 - Conguration
DMZ
A DMZ or Demilitarized Zone is as a physical or logical subnetwork
that contains and exposes external-facing services to a larger and
untrusted network, usually the Internet.
WAN
Connection:
Specify the WAN connection to use.
Enable DMZ: Check to enable or disable DMZ functionality.
DMZ Host IP
Address:
Enter an IP address to be included in the DMZ.