Advanced Configuration
N300 Wireless ADSL2+ Modem Router DGN2200M Mobile Edition
Set Up a Default DMZ Server
The default demilitarized zone (DMZ) server feature is helpful when you use some online
games and videoconferencing applications that are incompatible with NAT. The wireless
modem router is programmed to recognize some of these applications and to work correctly
with them, but there are other applications that might not function well. In some cases, one
local computer can run the application correctly if that computer’s IP address is entered as
the default DMZ server.
Note: For security reasons, you should avoid using the default DMZ server
feature. When a computer is designated as the default DMZ server,
it loses much of the protection of the firewall, and is exposed to
many exploits from the Internet. If compromised, the computer can
be used to attack your network.
Incoming traffic from the Internet is usually discarded by the wireless modem router unless
the traffic is a response to one of your local computers or a service that you have configured
in the Port Forwarding/Port Triggering screen. Instead of discarding this traffic, you can have
it forwarded to one computer on your network. This computer is called the default DMZ
To assign a computer or server to be a default DMZ server:
1. In the main menu, under Advanced, select WAN Setup.
2. Select the Default DMZ Server check box.
3. Type the IP address for that server.
4. Click Apply to save your changes.
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