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User authentication occurs in the order that the authentication methods are selected. If the first
authentication method is not available, the next selected method is used. For example, if the
selected authentication methods are RADIUS and Local, and all configured RADIUS servers are
queried in priority order and do not reply, the user is authenticated locally.
If an authentication method fails or the user has insufficient privilege level, the user is denied
access to the device. If authentication fails at an authentication method, the device stops the
authentication attempt; it does not continue and does not attempt to use the next authentication
method.
To define authentication methods for an access method:
1.
Click
Configuration > Security > Management Security > Management Access
Authentication
.
2.
Select an access method from the Application list.
3.
Use the arrows to move the authentication method between the Method Available column
and the Method To Use column. The first method selected is the first method that is used.
•
RADIUS—User is authenticated on a RADIUS server. You must have configured
one or more RADIUS servers.
•
None—User is allowed to access the device without authentication.
•
Local—Username and password are checked against the data stored on the local
device. These username and password pairs are defined in the User Accounts
page.
Note
—The Local or None authentication method must always be selected last. All
authentication methods selected after Local or None are ignored.
4.
Click
Apply
. The selected authentication methods are associated with the access method.