User`s guide

Prestige 128+ ISDN Router
System Security 13-3
13.2 Using RADIUS Authentication
Your Prestige has a built-in dial-up user list; however, the number of users that
can be stored locally is limited due to memory constraints. If you have more
users than what the Prestige can store locally, use an external RADIUS (Remote
Authentication Dial-In User Service) server that provides authentication service
for unlimited number of users.
13.2.1 Installing a RADIUS Server
To use RADIUS authentication, you need to have a UNIX or Windows NT
machine on your network as the RADIUS server, as well as the RADIUS
software itself.
You can obtain the RADIUS server software, along with documentation, at
http://www.livingston.com/Tech/FTP/pub-le-radius.shtml or
ftp://ftp.livingston.com/pub/le/radius/
Follow the included instructions to install the software on your server.
After you install the server software, you will need to edit the
dictionary file
in the RADIUS configuration directory (usually
/etc/raddb). Using any text
editor, add the following lines to the
dictionary file:
# Zyxel proprietary attributes
ATTRIBUTE Zyxel-Callback-Option 192 integer
VALUE Zyxel-Callback-Option None 0
VALUE Zyxel-Callback-Option Optional 1
VALUE Zyxel-Callback-Option Mandatory 2
# Callback phone number source
ATTRIBUTE Zyxel-Callback-Phone-Source 193 integer
VALUE Zyxel-Callback-Phone-Source Preconfigured 0
VALUE Zyxel-Callback-Phone-Source User 1