Cisco Catalyst 2950 Software Configuration Manual page 157

Chapter 8 Configuring Switch-Based Authentication
Beginning in privileged EXEC mode, follow these steps to configure login authentication:
Command
Step 1 configure terminal
Step 2 aaa new-model
Step 3
aaa authentication login {default |
list-name} method1 [method2...]
Step 4
line [console | tty | vty] line-number
[ending-line-number]
Step 5
login authentication {default |
list-name}
Step 6 end
Step 7 show running-config
Step 8
copy running-config startup-config
78-11380-12
Purpose
Enter global configuration mode.
Enable AAA.
Create a login authentication method list.
To create a default list that is used when a named list is not specified
•
in the login authentication command, use the default keyword
followed by the methods that are to be used in default situations. The
default method list is automatically applied to all interfaces.
• For list-name, specify a character string to name the list you are
creating.
• For method1..., specify the actual method the authentication
algorithm tries. The additional methods of authentication are used
only if the previous method returns an error, not if it fails.
Select one of these methods:
enable—Use the enable password for authentication. Before you can
•
use this authentication method, you must define an enable password
by using the enable password global configuration command.
group tacacs+—Uses TACACS+ authentication. Before you can use
•
this authentication method, you must configure the TACACS+ server.
For more information, see the
and Setting the Authentication Key" section on page
line—Use the line password for authentication. Before you can use
•
this authentication method, you must define a line password. Use the
password password line configuration command.
local—Use the local username database for authentication. You must
•
enter username information in the database. Use the username
password global configuration command.
• local-case—Use a case-sensitive local username database for
authentication. You must enter username information in the database
by using the username name password global configuration
command.
none—Do not use any authentication for login.
•
Enter line configuration mode, and configure the lines to which you want
to apply the authentication list.
Apply the authentication list to a line or set of lines.
If you specify default, use the default list created with the aaa
•
authentication login command.
For list-name, specify the list created with the aaa authentication
•
login command.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
Controlling Switch Access with TACACS+
"Identifying the TACACS+ Server Host
8-13.
8-15