To enter an IP address as a next hop, enter next-hop-ip, followed by the index number of the entry and the IP address. You can optionally apply tracking to monitor the route. For example, the command next-hop-ip 2 149.49.200.2 track 3 sets the IP address 149.49.200.2 as the second entry on the next hop list and applies object tracker 3 to monitor the route.
To enter an interface as a next hop, enter next-hop-interface, followed by the index number of the entry and the name of the interface. You can optionally apply tracking to monitor the route, except for the NULL0.
For example, the command next-hop-interface 3 fastethernet 10/2 sets FastEthernet 10/2 as the third entry on the next hop list.