User's Manual  252  Document #: LTRT-10632 
 
  Mediant 800B Gateway & E-SBC 
 
15.3.6.2  Configuring RADIUS-based User Authentication 
The following procedure describes how to configure RADIUS-based login authentication. 
For a detailed description of the RADIUS parameters, see 'RADIUS Parameters' on page 
1322. 
  To configure RADIUS-based login authentication: 
1.  Open the Authentication Server page (Setup menu > Administration tab > Web & 
CLI folder > Authentication Server). 
2.  From the 'Use RADIUS for Web/Telnet Login' drop-down list, select Enable to enable 
RADIUS authentication for Web and Telnet login: 
Figure  15-14: Enabling RADIUS-based Login Authentication 
 
3.  When implementing Web user access levels, do one of the following: 
•  If the RADIUS server response includes the access level attribute: In the 
'RADIUS VSA Access Level Attribute' field, enter the code that indicates the 
access level attribute in the VSA section of the received RADIUS packet. For 
defining the RADIUS server with access levels, see 'Setting Up a Third-Party 
RADIUS Server' on page 251. 
Figure  15-15: Authentication Settings Page - RADIUS Configuration 
 
•  If the RADIUS server response does not include the access level attribute: 
In the 'Default Access Level' field, enter the default access level that is applied to 
all users authenticated by the RADIUS server. 
Figure  15-16: Configuring Default Access Level 
 
4.  Configure RADIUS timeout handling: 
a.  From the 'Behavior upon Authentication Server Timeout' drop-down list, select 
the option if the RADIUS server does not respond within five seconds: 
♦  Deny Access: device denies user login access. 
♦  Verify Access Locally: device checks the username and password 
configured locally for the user in the Local Users table (see 'Configuring 
Management User Accounts' on page 79), and if correct, allows access. 
b.  In the 'Password Local Cache Timeout' field, enter a time limit (in seconds) after 
which the username and password verified by the RADIUS server becomes 
invalid and a username and password needs to be re-validated with the RADIUS 
server. 
c.  From the 'Password Local Cache Mode' drop-down list, select the option for the 
local RADIUS password cache timer: 
♦  Reset Timer Upon Access: upon each access to a Web page, the timer 
resets (reverts to the initial value configured in the previous step).