Arduino Ethernet Communication via UDP

MegunoLink Pro supports communication over Ethernet networks using the User Datagram or UDP protocol. UDP is a simple protocol which is supported by the Arduino Ethernet libraries and Arduino compatible boards such as the EtherTen and EtherMega, both from Freetronics. UDP can also be used with shields including the Arduino Ethernet and WiFi shields.

• Source : http://www.megunolink.com/arduino-ethernet-communication-via-udp/