Cisco 2431 - IAD Router User Manual

1-7
Cisco IAD2430 Series Integrated Access Devices Software Configuration Guide
OL-4306-03
Chapter 1 Understanding Interface Numbering and Cisco IOS Software Basics
Understanding Cisco IOS Software Basics
Command Modes
The Cisco IOS user interface involves different modes. Each command mode permits you to configure
different components on your router. The commands available at any given time depend on which mode
you are currently in. Entering a question mark (?) at the prompt displays a list of commands available
for each command mode.
Table 1-1 lists the most common command modes.
Timesaver Each command mode restricts you to a subset of commands. If you are having trouble entering a
command, check the prompt, and enter the question mark (?) for a list of available commands. You might
be in the wrong command mode or using the wrong syntax.
In the following example, notice how the prompt changes after each command to indicate a new
command mode:
Router> enable
Password: <enable password>
Router# configure terminal
Router(config)# interface serial 0/0
Router(config-if)# line 0
Router(config-line)# controller T1/E1 slot/port <---See second Note below
Router(config-controller)# exit
Router(config)# exit
Router#
%SYS-5-CONFIG_I: Configured from console by console
The last message is normal and does not indicate an error. Press Enter to get the Router# prompt.
Ta b l e 1-1 Common Command Modes
Command Mode Access Method
Router Prompt
Displayed
Exit Method
User EXEC Log in. Router> Use the logout
command.
Privileged EXEC From user EXEC mode,
enter the enable
command.
Router# To exit to user EXEC
mode, use the disable,
exit, or logout
command.
Global configuration From the privileged
EXEC mode, enter the
configure terminal
command.
Router (config)# To exit to privileged
EXEC mode, use the
exit or end command,
or press Ctrl-Z.
Interface configuration From the global
configuration mode,
enter the interface type
number command, such
as interface
serial 0/0.
Router (config-if)# To exit to global
configuration mode, use
the exit command.
To exit directly to
privileged EXEC mode,
press Ctrl-Z.

Cisco 2431 - IAD Router Specifications

General

Brand	Cisco
Model	2431 - IAD Router
Category	Network Hardware
Language	English