Radius-Related Problems - HP Procurve 2650 Management And Configuration Manual

Troubleshooting
Unusual Network Activity
C-12
The authorized MAC address on a port that is configured for both
802.1x and port security either changes or is re-acquired after
execution of
aaa port-access authenticator < port-list > initialize
force-authorized with
mand and port security is enabled on the port, then executing
the port to clear the learned address and learn a new address from the first
packet it receives after you execute
A trunked port configured for 802.1x is blocked. If you are using
RADIUS authentication and the RADIUS server specifies a VLAN for the port,
the switch allows authentication, but blocks the port. To eliminate this prob-
lem, either remove the port from the trunk or reconfigure the RADIUS server
to avoid specifying a VLAN.

Radius-Related Problems

The switch does not receive a response to RADIUS authentication
requests. In this case, the switch will attempt authentication using the
secondary method configured for the type of access you are using (console,
Telnet, or SSH).
There can be several reasons for not receiving a response to an authentication
request. Do the following:
Use to ensure that the switch has access to the configured RADIUS
I ping
server.
I Verify that the switch is using the correct encryption key for the desig-
nated server.
I Verify that the switch has the correct IP address for the RADIUS server.
Ensure that the
I radius-server timeout
conditions.
I Verify that the switch is using the same UDP port number as the server.
RADIUS server fails to respond to a request for service, even though
the server's IP address is correctly configured in the switch. Use
to verify that the encryption key the switch is using is correct for
show radius
the server being contacted. If the switch has only a global key configured, then
it either must match the server key or you must configure a server-specific
key. If the switch already has a server-specific key assigned to the server's IP
address, then it overrides the global key and must match the server key.
aaa port-access authenticator <port-list> control authorized
initialize
period is long enough for network
. If the port is
initialize
.
com-
causes