User manual

Chapter 4 Advanced Settings Page 46
RADIUS Settings
RADIUS (Remote Authentication Dial-In User Service) is a server for remote user authentication and
accounting; RADIUS plays a central role in the network for providing the capabilities of authenticating,
authorizing, accounting, auditing, alarming and etc. It allows an organization to maintain user profiles in a
central database that all remote servers can share.
Open “RADIUS Settings” in “System” to make RADIUS configuration.
Figure 28 RADIUS Settings
Authentication/Access Control RADIUS Server Login
This is for RADIUS authentication. It can communicate with RADIUS through IP Address, Port
Number and Shared Secret. If the Primary RADIUS fails to work, the Secondary RADIUS Server is
an option.
IP Address: Enter the IP address of the Radius Server;
Port Number: Enter the port number of the Radius Server;
Shared Secret: This secret, which is composed of no more than 31 characters, is shared by the
SGT-LD-55-23 and RADIUS during authentication.
Advanced WPA/802.1X Parameters
Re-authentication Time: Set the time interval between two authentications.
Global-Key Update: Check this option and specify the time interval between two global-key
updates.