Cisco 2950 Software Configuration Guide - Page 186
Setting a Telnet Password for a Terminal Line
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Protecting Access to Privileged EXEC Commands Chapter 9 Configuring Switch-Based Authentication Beginning in privileged EXEC mode, follow these steps to disable password recovery: Step 1 Step 2 Command configure terminal no service password-recovery Step 3 end Step 4 show version Purpose Enter global configuration mode. Disable password recovery. This setting is saved in an area of the flash memory that is accessible by the boot loader and the software image, but it is not part of the file system and is not accessible by any user. Return to privileged EXEC mode. Verify the configuration by checking the last few lines of the display. To re-enable password recovery, use the service password-recovery global configuration command. Note Disabling password recovery will not work if you have set the switch to boot manually by using the boot manual global configuration command. This command produces the boot loader prompt (switch:) after the switch is power cycled. 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 neglected to 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 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. Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide 9-6 78-11380-10
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