Cisco Catalyst 3750-X User Manual

10-6
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-21521-01
Chapter 10 Configuring Switch-Based Authentication
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 c
onfigure your switch for Telnet access:
To remove the password, use the no passw
ord global configuration command.
This example shows how to set the Telnet password to let4
5me67in89:
Switch(config)# line vty 10
Switch(config-line)# password let
45me67in89
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.
Command Purpose
Step 1
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 t
he console port are 9600, 8, 1, no
parity. You might need to press the Return key several times to see the
command-line prompt.
Step 2
enable password password Enter privileged EXEC mode.
Step 3
configure terminal Enter global configuration mode.
Step 4
line vty 0 15 Configure the number of Telnet sessions (lines), and enter line
configuration mode.
There are 16 possible sessions on a command-ca
pable switch. The 0
and 15 mean that you are configuring all 16 possible Telnet sessions.
Step 5
password password Enter a Telnet password for the line or lines.
For passwor
d, 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.
Step 6
end Return to privileged EXEC mode.
Step 7
show running-config Verify your entries.
The password is listed under the command li
ne vty 0 15.
Step 8
copy running-config startup-config (Optional) Save your entries in the configuration file.

Cisco Catalyst 3750-X Specifications

General

Switching Capacity	160 Gbps
Stacking Bandwidth	64 Gbps
Max Stacking Units	9
Layer Support	Layer 2 and Layer 3
Form Factor	Rack-mountable
DRAM	256 MB
Flash Memory	64 MB
Model	Cisco Catalyst 3750-X Series
Ports	24 or 48 10/100/1000 Ethernet ports
Uplink Interfaces	4 SFP or 2 SFP+
Features	StackWise Plus, EnergyWise
Image	IP Base or IP Services
Operating Temperature	0 to 40°C
Operating Humidity	10 to 85% noncondensing