ZyXEL P-153 User Guide - Page 145
Using RADIUS Authentication
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Prestige 153/153X WAN Bridge/Routers 11.2 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. 11.2.1 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 VALUE Zyxel-Callback-Option VALUE Zyxel-Callback-Option VALUE Zyxel-Callback-Option 192 integer None 0 Optional 1 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 These changes add the support for CLID authentication, as described in the section below. Telnet Configuration 11-3