Operating Rules For Radius Accounting; Steps For Configuring Radius Accounting - HP ProCurve 2910al Access Security Manual

Operating Rules for RADIUS Accounting

You can configure up to four types of accounting to run simulta­
■
neously: exec, system, network, and commands.
RADIUS servers used for accounting are also used for authentication.
■
■ The switch must be configured to access at least one RADIUS server.
■ RADIUS servers are accessed in the order in which their IP addresses
were configured in the switch. Use show radius to view the order.
As long as the first server is accessible and responding to authentica­
tion requests from the switch, a second or third server will not be
accessed. (For more on this topic, refer to "Changing RADIUS-Server
Access Order" on page 5-47.)
■ If access to a RADIUS server fails during a session, but after the client
has been authenticated, the switch continues to assume the server is
available to receive accounting data. Thus, if server access fails during
a session, it will not receive accounting data transmitted from the
switch.

Steps for Configuring RADIUS Accounting

1. Configure the switch for accessing a RADIUS server.
You can configure a list of up to three RADIUS servers (one primary, two
backup). The switch operates on the assumption that a server can operate
in both accounting and authentication mode. (Refer to the documentation
for your RADIUS server application.)
Use the same radius-server host command that you would use to
•
configure RADIUS authentication. Refer to "3. Configure the Switch
To Access a RADIUS Server" on page 5-15.
• Provide the following:
– A RADIUS server IP address.
– Optional—a UDP destination port for authentication requests.
Otherwise the switch assigns the default UDP port (1812; recom­
mended).
– Optional—if you are also configuring the switch for RADIUS
authentication, and need a unique encryption key for use during
authentication sessions with the RADIUS server you are desig­
nating, configure a server-specific key. This key overrides the
global encryption key you can also configure on the switch, and
RADIUS Authentication and Accounting
Configuring RADIUS Accounting
5-37