Dell PowerConnect B-RX - Configuring Authentication-Method Lists for TACACS; And TACACS

90 BigIron RX Series Configuration Guide
53-1002253-01
Configuring TACACS and TACACS+ security
4
When you display the configuration of the device, the TACACS+ keys are encrypted.
BigIron RX(config)# tacacs-server key 1 abc
BigIron RX(config)# write terminal
...
tacacs-server host 1.2.3.5 auth-port 49
tacacs key 1 $!2d
NOTE
Encryption of the TACACS+ keys is done by default. The 0 parameter disables encryption. The 1
parameter is not required; it is provided for backwards compatibility.
Setting the retransmission limit
The retransmit parameter specifies how many times the device will resend an authentication
request when the TACACS and TACACS+ server does not respond. The retransmit limit can be from
1 – 5 times. The default is 3 times.
To set the TACACS and TACACS+ retransmit limit, enter the following command.
BigIron RX(config)# tacacs-server retransmit 5
Syntax: tacacs-server retransmit <number>
Setting the dead time parameter
The dead-time parameter specifies how long the device waits for the primary authentication server
to reply before deciding the server is dead and trying to authenticate using the next server. The
dead-time value can be from 1 – 5 seconds. The default is 3 seconds.
To set the TACACS and TACACS+ dead-time value, enter the following command.
BigIron RX(config)# tacacs-server dead-time 5
Syntax: tacacs-server dead-time <number>
Setting the timeout parameter
The timeout parameter specifies how many seconds the Brocade device waits for a response from
the TACACS and TACACS+ server before either retrying the authentication request, or determining
that the TACACS and TACACS+ server is unavailable and moving on to the next authentication
method in the authentication-method list. The timeout can be from 1 – 15 seconds. The default is
3 seconds.
BigIron RX(config)# tacacs-server timeout 5
Syntax: tacacs-server timeout <number>
Configuring authentication-method lists for TACACS
and TACACS+
You can use TACACS and TACACS+ to authenticate Telnet/SSH access and access to Privileged
EXEC level and CONFIG levels of the CLI. When configuring TACACS and TACACS+ authentication,
you create authentication-method lists specifically for these access methods, specifying TACACS
and TACACS+ as the primary authentication method.