E-Lab 7.3.5 - Configuring IGRP
In this lab, you will learn to configure IGRP, a proprietary network protocol developed by Cisco Systems.
IGRP is designed to work on autonomous systems, and is a distance vector routing protocol.
This means that each router sends all or a portion of its routing table in a routing message update, at regular intervals, to each of its neighboring routers.
Step 1.1
Enter into privileged EXEC mode.
Step 1.2
Enter into global configuration mode.
Step 2
Enter hostname Kabul.
Step 3.1
Enter line configuration mode for the console.
Step 3.2
Enter password for console as cisco.
Step 3.3
Enter the login command.
Step 3.4
Enter the exit command to return to global configuration mode.
Step 4.1
Enter line configuration mode for virtual terminals 0 through 4.
Step 4.2
Enter password for virtual terminal cisco.
Step 4.3
Use the command login.
Step 4.4
Go back to global configuration mode.
Step 4.5
Set enable secret password to class.
Step 4.6
Enter router configuration mode for IGRP AS 101.
Step 4.7
Enter network address 192.168.15.0 for IGRP.
Step 4.8
Enter network address 192.168.14.0 for IGRP.
Step 5
Exit to global configuration mode.
Step 6.1
Enter interface configuration mode for Serial 0/0.
Step 6.2
Configure the IP address for Serial 0/0 as 192.168.15.1 255.255.255.0.
Step 6.3
Set the clockrate to 56000.
Step 6.4
Bring the interface up.
Step 6.5
Use the command end to exit into privileged EXEC mode.
Step 7
Save your configuration.
Step 8.1
(Switch to other router)
Enter privileged EXEC mode for Islamabad.
Step 8.2
Enter into global configuration mode.
Step 9
Enter hostname Islamabad.
Step 10.1
Enter line configuration mode for the console.
Step 10.2
Enter password for console as cisco.
Step 10.3
Enter the login command.
Step 10.4
Enter the exit command to return to global configuration mode.
Step 11.1
Configure the virtual terminal 0 to 4.
Step 11.2
Enter password for virtual terminal cisco.
Step 11.3
Use the command login.
Step 11.4
Go back to global configuration mode.
Step 11.5
Set enable secret password to class.
Step 11.6
Enter router configuration mode for IGRP using AS 101.
Step 11.7
Enter network address 192.168.15.0 for IGRP.
Step 11.8
Enter network address 192.168.16.0 for IGRP.
Step 11.9
Go back to global configuration mode.
Step 12.1
Enter interface configuration mode for Serial 0/0.
Step 12.2
Configure the IP address for Serial 0/0 as 192.168.15.2 255.255.255.0.
Step 12.3
Bring the interface up.
Step 12.4
Use the command end to exit into privileged EXEC mode.
Step 13
Save your configuration.
Step 14
Verify that the internetwork is functioning by pinging the serial interface of Kabul (192.168.15.1).
Step 15.1
Examine the routing table entries, using the show ip route command on router Islamabad.
Step 15.2
Verify the routing protocol for Islamabad using the command show ip protocols.
Step 15.3
Verify IGRP statements in the running configuration of this router.
Use the show run | begin igrp command to do so.
Step 16.1
Examine the routing table entries, using show ip route command on router Kabul.
Step 16.2
Verify the routing protocol for Kabul using the command show ip protocols.
Step 17
Verify IGRP statements in the running configuration of this router.
Use the show run | begin igrp command to do so.
Step 18.1
Verify IGRP routing updates by using the command debug ip igrp events.
Step 18.2
Verify IGRP routing updates by using the command debug ip igrp transactions.
Notice the differences between this debug command and the one used in the step before.
Step 19
Analyze, specifically, the 192.168.15.0 route using the show ip route command.