DGFV338 ProSafe Wireless ADSL Modem VPN Firewall Router Reference Manual
5-30 Virtual Private Networking
v1.0, April 2007
To edit the user name or password:
1. Click Edit opposite the users name. The Edit User screen will display.
2. Make the required changes to the User Name or Password and click Apply to save your
settings or Reset to cancel your changes and return to the previous settings. The modified user
name and password will display in the Configured Users table.

RADIUS Client Configuration

RADIUS (Remote Authentication Dial In User Service, RFC 2865) is a protocol for managing
Authentication, Authorization and Accounting (AAA) of multiple users in a network. A RADIUS
server will store a database of user information, and can validate a user at the request of a gateway
or server in the network when a user requests access to network resources. During the
establishment of a VPN connection, the VPN gateway can interrupt the process with an XAUTH
(eXtended AUTHentication) request. At that point, the remote user must provide authentication
information such as a username/password or some encrypted response using his username/
password information. The gateway will try and verify this information first against a local User
Database (if RADIUS-PAP is enabled) and then by relaying the information to a central
authentication server such as a RADIUS server.
To configure the Primary RADIUS Server:
1. Select VPN from the main menu, VPN Client from the submenu and then select the RADIUS
Client tab. The RADIUS Client screen will display.
2. Enable the Primary RADIUS server by checking the Yes radio box