User's Guide Part 2
Residential Gateway Family User’s Guide  Configuring Advanced Features 
DMZ 
The DMZ feature allows a computer on your home network to circumvent the firewall and have direct 
access to the internet. This feature is primarily used for gaming. The Gateway allows you to configure a 
temporary or permanent DMZ (Demilitarized Zone) to bypass the firewall for network or Internet gaming. 
If the DMZ feature is enabled, you must select the computer to be used as the DMZ computer/host. This 
function is recommended for use only when you require this special level of unrestricted access as it 
leaves your Gateway and network exposed to the Internet with no firewall protection. 
To enable and configure the DMZ: 
1. Select DMZ from the “
Firewall Settings” window. 
2. Click the Configure hyperlink next to DMZ. This displays the “Firewall DMZ Configuration” window. 
3.  Select one of the following DMZ enable options: 
•  Disable DMZ 
The firewall is not bypassed. 
•  Enable DMZ with this Host IP address 
The firewall is bypassed through an IP address typed in the box next to this field. 
•  Enable DMZ with this Host IP address 
The firewall is bypassed through an IP address that is selected from the Select Host drop-down 
menu next to this field. Select the desired host from the drop down. 
4.  Select one of the following time element options: 
•  Make Settings Permanent 
DMZ settings are permanent unless changed by the administrator. 
•  Make Settings Last for 
DMZ settings last for only the time (in minutes) entered in the box next to this option.  
5. Click Apply. 
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