E-Lab 7.3.7a - Verifying IGRP Configuration Use IOS show commands to verify the operation of a router running IGRP. Step 1 First, verify that the router is configured for IGRP by checking the running-configuration. Step 2 Verify that the interfaces are up. Step 3 Show the IP routing protocols running on the router to verify the IGRP process is active. Step 4 Now check that the router is receiving the advertised routes of its neighbors by reviewing the routing table.