Dmz - Technicolor CGM4231 Operation Manual

Figure 9.3

9.4 DMZ

The DMZ feature exposes the network user to the Internet for using special-purpose services
such as Internet Gaming or Video Conferencing. DMZ hosting forwards all the ports at the same
time to one computer. The Port Range Forwarding feature is more secure because it only opens
the ports the user want to have opened, while DMZ hosting opens all the ports of one computer,
exposing the computer to the Internet. This is generally used if PCs are running specific
applications that use random unknown port numbers and do not function correctly with specific
port triggers or port forwarding setups. It is advisable not to have any PCs/Servers as DMZ
hosts because of exposure to the public internet which results from this configuration.
Remember to disable this setting if this is enabled temporarily for any specific application.
Any computer whose port is being forwarded must have its DHCP client function disabled and
should have a static IP address assigned to it because its IP address may change when it is
using the DHCP function.
Application Tab/ DMZ
Click on Application tab then click on DMZ tab. This page displays DMZ setup information.
Here a user can set and display DMZ parameters including DMZ enable and DMZ v4 and v6
Host addresses.
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