Specifications

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Cisco Wide Area Application Services Command Reference
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Chapter 3 CLI Commands
(config) authentication
Server Redundancy
Authentication servers can be specified with the tacacs host or radius-server host global configuration
commands. In the case of TACACS+ servers, the tacacs host hostname command can be used to
configure additional servers. These additional servers provide authentication redundancy and improved
throughput, especially when WAAS device load-balancing schemes distribute the requests evenly
between the servers. If the WAAS device cannot connect to any of the authentication servers, no
authentication takes place and users who have not been previously authenticated are denied access.
Specifying Windows Domain Login Authentication
You can enable Windows domain as an administrative login authentication and authorization method for
a device or device group. Before you enable Windows authentication, you must first configure the
Windows domain controller by using the using the windows-domain wins-server global configuration
command. (See the
“(config) windows-domain” command.)
We recommend that you use the WAAS Central Manager GUI instead of the WAAS CLI to configure
Windows domain controller settings. See Chapter 6 of the Cisco Wide Area Application Services
Configuration Guide.
Examples To query the secondary authentication database if the primary authentication server is unreachable, enter
the following command. This feature is referred to as the fail-over server-unreachable feature.
WAE(config)# authentication fail-over server-unreachable
If you enable the fail-over server-unreachable feature on the WAAS device, only two login
authentication scheme (a primary and secondary scheme) can be configured on the WAAS device. The
WAAS device fails over from the primary authentication scheme to the secondary authentication scheme
only if the specified authentication server is unreachable.
To enable authentication privileges using the local, TACACS+, RADIUS, or Windows databases, and to
specify the order of the administrative login authentication use the authentication login global
configuration command. In the following example, RADIUS is specified as the primary method,
TACACS+ as the secondary method, Windows as the third method, and the local database as the fourth
method. In this example, four login authentication methods are specified because the fail-over
server-unreachable feature is not enabled on the WAAS device.
WAE(config)# authentication login radius enable primary
WAE(config)# authentication login tacacs enable secondary
WAE(config)# authentication login windows-domain enable tertiary
WAE(config)# authentication login local enable quaternary
Note If you have enabled the failover server unreachable feature on the WAAS device, make sure that
you specify either TACACS+ or RADIUS as the primary scheme for authentication, and specify
local as the secondary scheme for authentication.
To enable authorization privileges using the local, TACACS+, RADIUS, or Windows databases, and to
specify the order of the administrative login authorization (configuration), use the authentication
configuration global configuration command.