Remote AAA with TACACS+ About remote AAA with TACACS+ Default server groups Remote AAA (TACACS+) defaults and limits About global versus per-TACACS+ server passkeys (shared secrets) Remote AAA TACACS+ server configuration requirements Single source IP address for consistent source identification to AAA servers TACACS+ general tasks TACACS+ authentication TACACS+ authorization TACACS+ accounting Example: Configuring the switch for Remote AAA with TACACS+