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Local TACACS /RADIUS/LDAP : Tries local authentication first, falling back to remote if local fails
TACACS /RADIUS/ LDAP Local : Tries remote authentication first, falling back to local if remote
fails
TACACS /RADIUS/ LDAP Down Local : Tries remote authentication first, falling back to local if the
remote authentication returns an error condition (e.g. the remote authentication server is down
or inaccessible)
9.1.1 Local Authentication

Select Serial and Network: Authentication and check Local.

Click Apply.
9.1.2 TACACS Authentication
Perform the following procedure to configure the authentication method to be used whenever
the Console Server or any of its serial ports or hosts is accessed:

Select Serial and Network: Authentication and check TACAS or LocalTACACS or TACACSLocal
or TACACSDownLocal.

Enter the Server Address (IP or host name) of the remote Authentication/Authorization server.
Multiple remote servers may be specified in a comma-separated list. Each server is tried in
succession.
 In addition to multiple remote servers, you can also enter for separate lists of
Authentication/Authorization servers and Accounting servers. If no Accounting servers are
specified, the Authentication/Authorization servers are used instead.

Enter the Server Password.

Click Apply. TACAS+ remote authentication will now be used for all user access to Console
Server and serially or network attached devices.
The Terminal Access Controller Access Control System () security protocol is a
recent protocol developed by Cisco. It provides detailed accounting information and flexible