User Datagram Protocol version 6 (UDP6) is a computer communications protocol used to exchange packets on a network. UDP6 has the following characteristics:
UDP only uses source and destination information and is mainly used in the simple request/response structure.
UDP is unreliable. This is because no control mechanism is available to ensure that UDP6 datagrams reach their destinations.
UDP is connectionless, meaning that no virtual circuits are required during data transmission between hosts.
The connectionless feature of UDP6 enables it to send data to multicast addresses. This is different from TCP6, which requires specific source and destination addresses.