BASIC COMMANDS OF CISCO IOS

BASIC IOS COMMANDS

1. Router’s initial prompt (user-exsec mode).

Router>

2. Enter Privilege Mode.

Router>enable

Router#

3. Show the active configuration in memory using following command. The currently active configuration script running on the router is referred to as the running-configuration on the cisco routers command-line interface. privileged mode is required to execute this command.

Router#show running-config

4. Flash memory is a special kind of memory on the router that contains the operating system image file(s). Unlike regular router memory, Flash memory continues to maintain the file image even after power is lost. To view the contents of flash, use command;

Router#show flash

5. The routers Command Line Interface (CLI) maintains history of last 10 commands (by default) you have entered in memory. To view the past commands still in router memory, issue;

Router#show history

6. What two commands will let you retrieve the previous command you typed?

Press the up arrow

or

< ctrl > P

7. What two commands will let you use the next command in the history buffer?

Press the down arrow

or

< ctrl > N

           

Also refer to help post for further terminal editing features.

8. To view the status of the current layer 3 routed protocols running on your router;

Router#show protocols

9. The command to obtain critical information, such as: router platform type, operating system revision, operating system last boot time and file location, amount of memory, number of interfaces, and configuration register is;

Router#show version

10. Issue following command to view the router’s clock;

Router#show clock

11. What command will display a cached list of hosts and all of their interfaces IP

Addresses?

Router#show hosts

12. To view a list of all users who are connected to the router;

Router#show users

13. Use following command to view detailed information about each interface.

Router#show interfaces

14. What command will show the global and interface-specific status of any layer 3 protocols?

Router#show protocols