32.
Remote Authentication Dial-In User Service (RADIUS)
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over by requests for RADIUS authentication. The
no
form of this command sets the dead-
time to zero (non-responding servers are not passed over).
NOTE
A configured RADIUS server is presumed dead, if timeout time is reached in three
authentication sessions.
Command Syntax
device-name
(config)#
radius-server deadtime
<
minutes
>
device-name
(config)#
no radius-server timeout
Argument Description
minutes
Dead-time interval in minutes, in the range <0-1440>
Creating the Local Database
The local authentication database is used for authentication if the configured radius server is
not responding.
For details on how to use the
username
command, refer to "Creating a New User with a
Privilege Level".
Using RADIUS to Configure Login Authentication
Use the
aaa authentication login default
command with the radius method keyword to
specify RADIUS as the login authentication method.
aaa authentication login default
The
aaa authentication
command, in Global Configuration mode, specifies the default login
authentication method. The
no
form of this command disables authentication – except for the
login password.
Local authentication is tried only if there is no response from the RADIUS server.
NOTE
The secondary authentication method is always local. This is to prevent the situation that
you cannot configure authentication on an interface because RADIUS authentication
prevents you from logging in.