3Com 3032 Configuration Manual page 549

unavailable. Moreover as the
configured (defaulted as 5 minutes), or a relative long dead-time has been
configured, the system does not know that the server has recovered. Use
command to delete the original RADIUS server, and reconfigure it
radius server
by command to activate the server immediately.
radius server
5 If none of the above operations work, check whether the RADIUS server has been
configured correctly, and whether the modification has been activated
A user's RADIUS authentication is always rejected
Follow the steps below.
1 Check whether the user name, password and service type are set correctly on
RADIUS server.
2 Check whether the RADIUS server can be pinged through Check whether the
address, port number and key of RADIUS server configured on the router are
identical with those of the RADIUS server in use.
3 Use the
radius server
the communication failure with the server, RADIUS server may be considered by
the system as unavailable by the system. And as the
command has not been configured (defaulted as 5 minutes), or a relative long
dead-time has been configured, the system does not know that the server has
recovered. Use
undo radius server
server, and reconfigure it by
immediately.
4 Check whether the RADIUS server has been configured correctly, and whether the
modification made just now has been activated.
A connected user cannot be seen in display aaa user
Follow the steps below.:
1 Check whether AAA has been enabled.
2 Check whether the authentication methods contain "none", because users using
none method will not be displayed in the command
No authentication is configured, yet users are still authenticated
Follow the step below:
1 AAA has been enabled, and the default authentication method in AAA default
authentication method list is "local". To disable the authentication,
authentication-scheme ppp default none
should be noted that
delete the default method; it can only restore the local authentication.
Troubleshooting AAA and RADIUS
radius timer quiet
command to reconfigure the RADIUS server. Because of
command to delete the original RADIUS
radius server
undo aaa authentication-scheme ppp default
command has not been
radius timer quiet
command to activate the server
display aaa user
should be configured. Meanwhile, it
545
undo
.
aaa
can