initiation to CLI/IOS command line

1-User EXEC Mode

2-Privileged Exec Mode

3-Configuration Mode

  • Global configuration
  • interface configuration mode
  • Subinterface configuration mode
  • we choose the 2 routers.
  • to browse the run config page, press the space button

if we type the command "do show ip int brief" to look at all the configurations of all the interfaces of our equipment

you can see that the protocol of our interface GigabitEthernet0/0/0 is set down,it means that our interface is not connect to another device. so you must connect the second device(router1).

Now you can observ that the cable is green means that the two routeurs are connected each other.

Exanple: in the image below we read “success rate is 80 percent (4/5) …”, means that the first of this five pings failed.



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