|  | 11.7 | ARP Tables
| 11.7.3 | Other router table addresses
What happens if a data packet reaches a router that is destined for a network to which it is not connected? In addition to IP addresses and MAC addresses of devices located on networks to which it connects, a router also possesses IP addresses and MAC addresses of other routers. It uses these addresses to direct data toward its final destination. If a router receives a packet whose destination address is not in its routing table, it forwards it to the address of another router that most likely does contain information about the destination host in its routing table.