Cisco Catalyst 4500 Series Command Reference Guide

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Catalyst 4500 Series Switch Cisco IOS Command Reference—Release IOS XE 3.4.0SG and IOS 15.1(2)SG)
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Chapter 2 Cisco IOS Commands for the Catalyst 4500 Series Switches
username
username
To establish a username-based authentication system, use the username command.
username name secret {0 | 5} password
Syntax Description
Defaults No username-based authentication system is established.
Command Modes Global configuration mode
Command History
Usage Guidelines Use this command to enable enhanced password security for the specified username. This command
enables MD5 encryption on the password. MD5 encryption is a strong encryption method that is not
retrievable. You cannot use MD5 encryption with protocols that require clear-text passwords, such as
CHAP.
You can use this command for defining usernames that get special treatment. For example, you can
define an “info” username that does not require a password but that connects the user to a
general-purpose information service.
The username command provides both username and secret authentication for login purposes only.
The name argument can be only one word. White spaces and quotation marks are not allowed.
You can use multiple username commands to specify options for a single user.
For information about additional username commands, refer to the Cisco IOS Command Reference.
Examples This example shows how to specify an MD5 encryption on a password (warrior) for a username (xena):
Switch(config)# username xena secret 5 warrior
Switch(config)#
Related Commands
name User ID of the user.
secret 0 | 5 Specifies the authentication system for the user; valid values are 0 (text
immediately following is not encrypted) and 5 (text immediately following is
encrypted using an MD5-type encryption method).
password Password of the user.
Release Modification
12.1(8a)EW Support for this command was introduced on the Catalyst 4500 series switch.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E