Cisco WS-C2960-24TC-S Software Guide - Page 142
Setting a Telnet Password for a Terminal Line, Configuring Username and Password Pairs
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Protecting Access to Privileged EXEC Commands Chapter 8 Configuring Switch-Based Authentication Setting a Telnet Password for a Terminal Line When you power-up your switch for the first time, an automatic setup program runs to assign IP information and to create a default configuration for continued use. The setup program also prompts you to configure your switch for Telnet access through a password. If you did not configure this password during the setup program, you can configure it now through the command-line interface (CLI). Beginning in privileged EXEC mode, follow these steps to configure your switch for Telnet access: Command Step 1 Step 2 Step 3 Step 4 enable password password configure terminal line vty 0 15 Step 5 password password Step 6 end Step 7 show running-config Step 8 copy running-config startup-config Purpose Attach a PC or workstation with emulation software to the switch console port. The default data characteristics of the console port are 9600, 8, 1, no parity. You might need to press the Return key several times to see the command-line prompt. Enter privileged EXEC mode. Enter global configuration mode. Configure the number of Telnet sessions (lines), and enter line configuration mode. There are 16 possible sessions on a command-capable switch. The 0 and 15 mean that you are configuring all 16 possible Telnet sessions. Enter a Telnet password for the line or lines. For password, specify a string from 1 to 25 alphanumeric characters. The string cannot start with a number, is case sensitive, and allows spaces but ignores leading spaces. By default, no password is defined. Return to privileged EXEC mode. Verify your entries. The password is listed under the command line vty 0 15. (Optional) Save your entries in the configuration file. To remove the password, use the no password global configuration command. This example shows how to set the Telnet password to let45me67in89: Switch(config)# line vty 10 Switch(config-line)# password let45me67in89 Configuring Username and Password Pairs You can configure username and password pairs, which are locally stored on the switch. These pairs are assigned to lines or ports and authenticate each user before that user can access the switch. If you have defined privilege levels, you can also assign a specific privilege level (with associated rights and privileges) to each username and password pair. Catalyst 2960 Switch Software Configuration Guide 8-6 OL-8603-04
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