What does the command "show ip route" display on a router?

The command "show ip route" is used on a router to display the routing table, which is a critical component in network operations. The routing table contains information about the networks known to the router, including the associated network addresses, next hop IP addresses, and the metrics or administrative distances associated with each route. This information helps the router determine the best path for sending packets to their destinations.

When a router receives a packet, it looks up the destination IP address in its routing table to decide which interface to forward the packet through. The command provides valuable insights into how the router performs packet forwarding and manages its routing decisions. By examining the routing table, network administrators can diagnose connectivity issues, verify routing information, and ensure that the router's configuration is functioning as intended.

The other choices do not pertain to what the "show ip route" command provides. For instance, checking the status of connected interfaces or examining OSPF neighbor relationships involves different commands specific to those functions, and understanding CPU load is related to performance monitoring, which is also addressed by other commands. Therefore, the routing table is the specific focus of the "show ip route" command.