ZyXEL Communications MES3500-24 User Manual

 Chapter 25 AAA

MES3500-24/24F User’s Guide

authentication and accounting features on the Switch. Click on the RADIUS Server Setup link in 
the AAA screen to view the screen as shown. 

Advanced Application > AAA > RADIUS Server Setup 

The following table describes the labels in this screen. 

Advanced Application > AAA > RADIUS Server Setup 

Authentication 
Server

Use this section to configure your RADIUS authentication settings.

Mode

This field only applies if you configure multiple RADIUS servers. 

Select index-priority and the Switch tries to authenticate with the first configured RADIUS 
server, if the RADIUS server does not respond then the Switch tries to authenticate with the 
second RADIUS server. 

Select round-robin to alternate between the RADIUS servers that it sends authentication 
requests to.

Timeout

Specify the amount of time in seconds that the Switch waits for an authentication request 
response from the RADIUS server. 

If you are using index-priority for your authentication and you are using two RADIUS 
servers then the timeout value is divided between the two RADIUS servers. For example, if 
you set the timeout value to 30 seconds, then the Switch waits for a response from the first 
RADIUS server for 15 seconds and then tries the second RADIUS server. 

Index

This is a read-only number representing a RADIUS server entry.

IP Address

Enter the IP address of an external RADIUS server in dotted decimal notation.

UDP Port

The default port of a RADIUS server for authentication is 1812. You need not change this 
value unless your network administrator instructs you to do so.