Updated: 07/20/2017 by Computer Hope
Diagram of unicast routing

Unicast is a method of routing data from one sender to one receiver on a computer network. It's also known as one-to-one routing, because all data packets sent to an address will always arrive at a single, unique device.

Unicast is one of the five major techniques for routing computer network traffic. The others are multicast, broadcast, anycast, and geocast.

Network terms