The hierarchy of CLI cisco

The “Command Line Interface” of cisco is made up of several modes:

The “User” mode

Allows only to make some basic commands.

Switch>

The “privileged” mode

Allows more information. Like orders `SHOW ‘in particular.

Switch#

The “global configuration” mode

also contains several sub-modes (detailed [here] (#Configuration-D-a Interface)).

Switch (config)

Summary of the different modes and orders for each of them

Configuration of an interface

Router (Config)#
Gigabitethernet0/0 interface

Gigabitethernet0/0 is here, the name of the interface (physical or logical), in which we return. If you do not know the name of your interface, use the SHOW interfaces' ** command in Enable ** mode. You can use the interface command? To see all possible actions.

Router (Config-IF)# is displayed after execution of the command.

IP Address 192.168.1.1 255.255.255.0

Allows you to send the interface.

Warning

** Do not forget `No Shutdown ‘to start the interface. **

Configuration of several interfaces with ranges

Gigabitethernet0/0-2

no shut

Starts Gigabitethernet0/0, Gigabitethernet0/1 and Gigabitethernet0/2 interfaces.

Configuration of a line

LINE VTY 0 1

Router (Config-line)# is displayed after execution of the command.

The “lines” allow remote access to the equipment. Passing through Telnet (in clear) or SSH (encrypted). You can use the ```command to see all possible actions.

Router Configuration

Router Ospf

Router Configure the router to do here, OSPF. The possible options are routing protocols between routers. You can use the command Router? To see all the available protocols.

Router (Config-router)# is displayed after execution of the command.