US Robotics USR5462 User Manual page 53

Advanced Setup
DMZ (Demilitarized Zone)
If you have a client PC that cannot run an Internet application
properly from behind the firewall, then you can open the client up to
unrestricted two-way Internet access. Enter the Public IP address of
the DMZ host to this screen. Enter the Client PC IP address for clients
that want to connect. Adding a client to the DMZ may expose your
local network to a variety of security risks, so only use this option as
a last resort.
49