Administrator Guide

Usage Information
To list multiple TACACS+ servers to be used by the aaa authentication login command, congure this
command multiple times.
If you are not conguring the switch as a TACACS+ server, you do not need to congure the port, timeout and
key optional parameters. If you do not congure a key, the key assigned in the tacacs-server key command
is used.
You can use duplicate host names or IP addresses among TACACS groups. However, you cannot use duplicate host
names or IP addresses within the same TACACS group.
If a VRF is not congured on the TACACS group, then servers congured in the group are considered to be on the
default VRF. TACACS servers that are congured in the CONFIGURATION mode are also considered to be on the
default VRF.
For AAA servers to use a group of TACACS servers, you must explicitly congure the group using the aaa
tacacs group
group-name command. The order in which the TACACS servers are tried depends on the
order in which they are congured.
Example
Dell(conf)# tacacs-server group group1
Dell(conf-tacacs-group)# tacacs-server host 1.1.1.1 key secr-et
Dell(conf-tacacs-group)# no tacacs-server host 1.1.1.1
Dell(conf-tacacs-group)#
Related Commands
• aaa authentication login — species the login authentication method.
• tacacs-server key — congures a TACACS+ key for the TACACS server.
tacacs-server key
Congure a key for communication between a TACACS+ server and a client.
Syntax
tacacs-server key [encryption-type] key
To delete a key, use the no tacacs-server key key command.
Parameters
encryption-type (OPTIONAL) Enter either zero (0) or 7 as the encryption type for the key entered. The
options are:
• 0 is the default and means the key is not encrypted and stored as clear text.
• 7 means that the key is encrypted and hidden.
key Enter a text string, up to 42 characters long, as the clear text password. Leading spaces
are ignored.
Defaults Not congured.
Command Modes CONFIGURATION
Command History
This guide is platform-specic. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
1418 Security