Specifications

Altitude 3500 Series Access Point Product Reference Guide
177
6 Configure the Server Settings field as required to define address information for the authentication
server. The appearance of the Server Settings field varies depending on whether Internal or External
has been selected from the Radius Server drop-down menu.
Radius Server
Address
If using an External RADIUS Server, specify the numerical
(non-DNS) IP address of a primary Remote Dial-In User
Service (RADIUS) server. Optionally, specify the IP
address of a secondary server. The secondary server acts
as a failover server if the primary server cannot be
contacted. An ISP or a network administrator provides
these addresses.
RADIUS is a client/server protocol and software enabling
remote-access clients to communicate with a server used
to authenticate users and authorize access to the
requested system or service. This setting is not available if
Internal has been selected from the RADIUS Server drop-
down menu.
Radius Port If using an External RADIUS Server, specify the port on
which the primary RADIUS server is listening. Optionally,
specify the port of a secondary (failover) server. Older
RADIUS servers listen on ports 1645 and 1646. Newer
servers listen on ports 1812 and 1813. Port 1645 or 1812
is used for authentication. Port 1646 or 1813 is used for
accounting. The ISP or a network administrator needs to
confirm the appropriate primary and secondary port
numbers for authentication. This setting is not available if
Internal has been selected from the RADIUS Server drop-
down menu.