RADIUS
The RADIUS server is Remote Authentication Dial-In User Service (RADIUS) defined in RFC2865. It is primarily used by ISPs who authenticate a username and password before authorizing use of the network.
RADIUS Server IP Address
Specifies the IP address of the RADIUS server.
Authorization Port
Specifies the UDP port number of the EAPOL control frame.
Secrete Key String
It is a string used by the RADIUS server as a password to identify EAPOL control frames.