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In some situations, it is ben-
efi cial to have a
client network
device designated as a catch-
all, with all ports opened to
enable better functionality
with services like messaging
or gaming.
Using a Demilitarized zone
will allow one local network
device to be exposed to the
Internet for use of a special-
purpose service such as
Internet gaming or video-
conferencing. DMZ hosting
forwards all the ports at the same time to the selected device.
Packet Filtering is more secure as it only opens the ports designated to be opened, while a Demili-
atrarized Zone will open every port of a designated device.
Demilitarized
Zone Client
Address Translation