Setting A Telnet Password For A Terminal Line; Configuring Username And Password Pairs - Cisco Catalyst 3120 Software Manual

Protecting Access to Privileged EXEC Commands

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 enable password password
Step 3 configure terminal
Step 4
line vty 0 15
Step 5
password password
Step 6
end
Step 7 show running-config
Step 8
copy running-config startup-config
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.
Cisco Catalyst Blade Switch 3120 for HP Software Configuration Guide
7-6
Purpose
Attach a PC or workstation with emulation software to the switch console
port, or attach a PC to the Ethernet management 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.
Chapter 7 Configuring Switch-Based Authentication
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