Use this command in TACACS Server Configuration mode to set the TACACS+ server-specific authentication encryption key used for all TACACS+ communications between the TACACS+ server and the client.

Format keystring
Mode TACACS Server Config

The following shows an example of the command.

(Extreme 220) (Config) #tacacs-server host
(Extreme 220)(Tacacs)#keystring
Enter tacacs key:********
Re-enter tacacs key:********