SMC Networks SMC2555W-AG - Manual (Page 66)

System Configuration
5-10
Primary Radius Server Setup – Configure the following settings
to use RADIUS authentication on the access point.
• IP Address: Specifies the IP address of the RADIUS server.
•
Port: The UDP port number used by the RADIUS server for
authentication messages. (Range: 1024-65535;
Default: 1812)
• Key: A shared text string used to encrypt messages between
the access point and the RADIUS server. Be sure that the
same text string is specified on the RADIUS server. Do not
use blank spaces in the string. (Maximum length: 255
characters)
•
Timeout: Number of seconds the access point waits for a reply
from the RADIUS server before resending a request.
(Range: 1-60 seconds; Default: 5)
•
Retransmit attempts: The number of times the access point
tries to resend a request to the RADIUS server before
authentication fails. (Range: 1-30; Default: 3)
Note: For the Timeout and Retransmit attempts fields, accept the
default values unless you experience problems connecting to the
RADIUS server over the network.
Secondary Radius Server Setup – Configure a secondary
RADIUS server to provide a backup in case the primary server
fails. The access point uses the secondary server if the primary
server fails or becomes inaccessible. Once the access point
switches over to the secondary server, it periodically attempts to
establish communication again with primary server. If
communication with the primary server is re-established, the
secondary server reverts to a backup role.