Supports datagrams, which are connectionless, unreliable messages of a fixed (typically small) maximum length. Messages might be lost or duplicated and might arrive out of order. A System.Net.Sockets.Socket of type SocketType.Dgram requires no connection prior to sending and receiving data, and can communicate with multiple peers. SocketType.Dgram uses the Datagram Protocol (ProtocolType.Udp) and the AddressFamily.InterNetwork System.Net.Sockets.AddressFamily.