show ip route:  To inspect the routing table.

show ip route eigrp: To filter the routing table and show only the routes learned from EIGRP.

show ip protocols:  Verifies autonomous system, timer values, identified networks, and EIGRP neighbors (routing information sources).

show ip eigrp topology: Shows the EIGRP topology table and identifies successors and feasible successors.

show ip eigrp neighbors: To verify that the correct routers are neighbors,

Show ip eigrp traffic: To show the amount and types of EIGRP messages.