An electronic device for communication in a data network including a communication circuit adapted for performing the network communication, which communication includes controlling a plurality of network layers, the layers including a physical layer, a link layer and at least one higher order layer, the communication circuit includes a protective circuit for identifying unwanted data. The electronic device is characterized in that the protective circuit is arranged to monitor data during transmission of data from the electronic device, and identify unwanted data, and the communication circuit is adapted to avoid transmission of the unwanted data identified by the protective circuit. In this way the network is protected against excessive traffic, for example during a Denial of Service attack.