E-Lab 4.1.6b - CDP Neighbors
In this lab, the Cisco Discovery Protocol (CDP) commands will be used.
CDP discovers and shows information about directly connected Cisco devices.
CDP commands will be used to get information about neighboring networks and routers.
Step 1.1
Enter into privileged EXEC mode
Step 1.2
Enter into global configuration mode.
Step 2
Set the hostname to Warsaw.
Step 3.1
Enter line configuration mode for the console.
Step 3.2
Set the password to cisco.
Step 3.3
Use the command login.
Step 3.4
Exit to global configuration mode.
Step 4.1
Enter line configuration mode for virtual terminals 0 through 4.
Step 4.2
Set the vty password to cisco.
Step 4.3
Use the command login
Step 4.4
Exit to global configuration mode.
Step 5.1
Set the enable password to class.
Step 5.2
Exit to privileged EXEC mode.
Step 6
Save the configuration.
Step 7
Now configure the adjacent router.
Enter into privileged EXEC mode.
Step 8
Enter into global configuration mode.
Step 9
Set the hostname to Budapest
Step 10.1
Enter line configuration mode for the console.
Step 10.2
Set the password to cisco.
Step 10.3
Use the command login.
Step 10.4
Exit to global configuration mode.
Step 11.1
Enter line configuration mode for the virtual terminals 0 through 4.
Step 11.2
Set the vty password to cisco.
Step 11.3
Use the command login.
Step 11.4
Exit to global configuration mode.
Step 12.1
Set the enable password to class.
Step 12.2
Exit to privileged EXEC mode.
Step 13
Gather information about the Warsaw router interfaces by issuing the show interfaces command.
Step 14
Enter global configuration mode on Warsaw.
Step 15.1
Enter interface configuration mode for serial 0.
Step 15.2
Configure a clock rate of 56000 for this interface.
Step 15.3
Bring the interface up.
Step 15.4
Exit into global configuration mode.
Step 16.1
Enter interface configuration mode for interface fastethernet 0.
Step 16.2
Bring up the interface.
Step 17
Use the command end to return to privileged EXEC mode.
Step 18
Save the configuration.
Step 19
Use the show cdp command to view global CDP information.
Step 20
Display the values of the CDP timers, the interface status, and the encapsulation used.
Step 21
Display the CDP updates received on the local router using the show cdp neighbors command.
Step 22
Enter global configuration mode on the Budapest router.
Step 23.1
Enter interface configuration mode for serial 0
Step 23.2
Bring up the interface.
Step 23.3
Use the command end to return to privileged EXEC mode.
Step 24
Display details about CDP updates received on the local router.
Step 25
Observe the CDP packets being sent and received on the router by entering the debug cdp packets command.
Step 26
Turn off all possible debugging.
Step 27
Observe the CDP packet traffic.
Use the show cdp traffic command to do so.
Step 28
Clear the CDP counters using the clear cdp counters command.
Step 29
Now use the show cdp traffic command again to view the results of the clear cdp  counters command.