Skip to Main Content
Cisco IOS in a Nutshell, 2nd Edition
book

Cisco IOS in a Nutshell, 2nd Edition

by James Boney
August 2005
Intermediate to advanced content levelIntermediate to advanced
798 pages
31h 12m
English
O'Reilly Media, Inc.
Content preview from Cisco IOS in a Nutshell, 2nd Edition

Name

username — global

Synopsis

username name [nopassword | password password] [access-class access-list-
number] [autocommand command] [callback-dialstring phone-number]
[callback-rotary rotary-group-number] [callback-line [tty] line-number
[ending-line-number]] [nocallback-verify] [noescape] [nohangup]
[privilege level]

Configures

Username information for authentication

Default

None

Description

The username command provides authentication information for a user. It is used to build a username database on the router itself (as opposed to on an external server, like a RADIUS server). Many different types of information can be provided, using the following options:

nopassword

No password is required for the user; this option is useful when combined with autocommand.

password password

Specifies a password for the user.

access-class access-list-number

Specifies an outgoing access list for the user, overriding the access list specified in the access-class command in the line configuration.

autocommand command

Causes the specified command to be issued automatically when the user connects. This is commonly used to start PPP sessions.

callback-dialstring phone-number

Specifies the phone number to pass to the modem for asynchronous callback.

callback-rotary rotary-group-number

Specifies the rotary group to use for asynchronous callback.

callback-line tty line-number ending-line-number

Specifies which lines can be used for asynchronous callback. The optional tty keyword restricts the callback to ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

CISCO IOS in a Nutshell

CISCO IOS in a Nutshell

James Boney
Cisco IOS Cookbook, 2nd Edition

Cisco IOS Cookbook, 2nd Edition

Kevin Dooley, Ian Brown
Cisco Software-Defined Access

Cisco Software-Defined Access

Srilatha Vemula, Jason Gooley, Roddie Hasan

Publisher Resources

ISBN: 0596008694Errata