R3166-R3206-HP High-End Firewalls Access Control Configuration Guide-6PW101

146
To do… Use the command… Remarks
Interpret the class attribute as CAR
parameters
attribute 25 car
Required
Be default, RADIUS attribute 25 is not
interpreted as CAR parameters.
NOTE:
W
hether interpretation of the RADIUS class attribute as CAR parameters is supported depends on two
factors:
• Whether the device supports CAR parameters assignment.
• Whether the RADIUS server supports assigning CAR parameters through the class attribute.
Enabling the trap function for RADIUS
With the trap function, a NAS sends a trap message when either of the following events occurs:
• The status of a RADIUS server changes. If a NAS receives no response to an accounting or
authentication request before the specified maximum number of RADIUS request transmission
attempts is exceeded, it considers the server unreachable, sets the status of the server to block and
sends a trap message. If the NAS receives a response from a RADIUS server that it considers
unreachable, the NAS considers that the RADIUS server is reachable again, sets the status of the
server to active, and sends a trap message.
• The ratio of the number of failed transmission attempts to the total number of authentication request
transmission attempts reaches the threshold. This threshold ranges from 1% to 100% and defaults to
30%. This threshold can only be configured through the MIB.
The failure ratio is generally small. If a trap message is triggered because the failure ratio is higher than
the threshold, troubleshoot the configuration on and the communication between the NAS and the
RADIUS server.
Follow these steps to enable the trap function for RADIUS:
To do… Use the command…
Remarks
Enter system view system-view —
Enable the trap function for
RADIUS
radius trap { accounting-server-down |
authentication-server-down }
Required
Disabled by default
Enabling the RADIUS listening port of the RADIUS client
Only after you enable the RADIUS listening port of a RADIUS client, can the client receive and send
RADIUS packets. If RADIUS is not required, disable the RADIUS listening port to avoid attacks that exploit
RADIUS packets.
Follow these steps to enable the RADIUS listening port of a RADIUS client:
To do… Use the command…
Remarks
Enter system view system-view —
Enable the RADIUS listening port of
a RADIUS client
radius client enable
Optional
Enabled by default