VARIOUS MODES ON ROUTER

VARIOUS MODES ON ROUTER

To configure Cisco Router lOS commands are used. There are different lOS modes for various configurations.

The lOS modes are:

1.       User Mode:

Router>

                                Router is the default hostname and can be changed, '>' Symbol implies "User Mode".

                        This is the first mode user interface with the IOS. It is a restricted mode and support

only a very few basic commands.

2.       Privilege Mode: 

Router#

‘#’ symbol implies Privilege Mode". This mode has full administrative rights. This

 mode is generally used for advance troubleshooting using 'shov/ and 'debug'

 command. This is also called as the EXEC mode.

3.        Global Configuration Mode 

Router(config)#

'(config)#' symbol implies "Global Configuration Mode". Configuration of the Router

 starts from this mode. In this mode configurations that affect the complete router

are given. Example, hostname of the router.

4.       Interface Configuration Mode 

Router(config-if)#

‘(config-if)#' symbol implies "Interface Configuration Mode". This mode is used to

configure a specific interface.

The different types of interfaces are:-

1.      LAN interface

a.      Ethernet

b.      Fastethernet

c.       Gigabiteethernet

2.      WAN Interface

a.      Serial

Each interface.is identified by a number. The first interface is numbered as 0 the

second interface is numbered as 1 and so on. In a modular router the number is given

as 'module number/interface number'. Example 0/0.

5.       Line Configuration Mode 

Router(config-line)#

'(config-line)#’  symbol implies "Line Configuration Mode". This mode is used to

Configure Telnet, Console and Auxiliary.

6.       Router Mode 

Router(config-router)#

'(config-router)#' symbol implies "Router  Mode". This mode is used to advertise

network under dynamic routing protocols.