User's Guide Part 2
Residential Gateway Family User’s Guide  Configuring Advanced Features 
Security 
Your Gateway provides broad security measures against unwanted users. Security also allows for the 
configuration of the Gateway firewall, administrator password, (NAT) Network Address Translation, and 
DMZ (Demilitarized Zone) configuration. 
To use the security option, click the Security button on the Gateway Options pane. This displays the 
“Security Options” window containing icons to access the security features. 
This section is organized into parts that correspond to the following buttons shown in the Gateway 
Options pane. 
Configure the network firewall. A firewall is a system designed to prevent unauthorized 
access to or from a private network.
Change administrative password. 
Configure address translation. Address translation hides individual users/computers 
behind a single outward-facing address. Hiding internal addresses allows greater 
security for your network. 
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