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NXA-ENET24 - Software Management Guide
TACACS+ Client
Terminal Access Controller Access Control System (TACACS+) is a logon authentication protocol that uses
software running on a central server to control access to TACACS-aware devices on the network. An
authentication server contains a database of multiple user name/password pairs with associated privilege levels
for each user or group that require management access to a switch.
TACACS+ Client Commands
Command Function
tacacs-server host
This command specifies
the TACACS+ server.
Use the no form to restore
the default.
Syntax:
tacacs-server host host_ip_address
no tacacs-server host
• host_ip_address - IP address of a TACACS+ server.
Default Setting: 10.11.12.13
Command Mode: Global Configuration
Example:
Console(config)#tacacs-server host 192.168.1.25
Console(config)#
tacacs-server port
This command specifies
the TACACS+ server net-
work port.
Use the no form to restore
the default.
Syntax:
tacacs-server port port_number
no tacacs-server port
• port_number - TACACS+ server TCP port used for authentication messages.
(Range: 1-65535)
Default Setting: 49
Command Mode: Global Configuration
Example:
Console(config)#tacacs-server port 181
Console(config)#
tacacs-server key
This command sets the
TACACS+ encryption key.
Use the no form to restore
the default.
Syntax:
tacacs-server key key_string
no tacacs-server key
• key_string - Encryption key used to authenticate logon access for the client. Do
not use blank spaces in the string.(Maximum length: 20 characters)
Default Setting: None
Command Mode: Global Configuration
Example:
Console(config)#tacacs-server key green
Console(config)#
show tacacs-server
This command displays the
current settings for the
TACACS+ server.
Default Setting: None
Command Mode: Privileged Exec
Example:
Console#show tacacs-server
Remote TACACS server configuration:
Server IP address: 10.11.12.13
Communication key with TACACS server: *****
Server port number: 49
Console#