Abstract: 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.

Abstract: A method of limiting the amount of network traffic reaching a local node in an electronic device operating an Ethernet networking protocol and using a network stack including at least one physical layer (PHY) and one link layer, preferably a media access controller (MAC). The electronic device is connected to a communication network, the network traffic is filtered, and an unwanted data reception is filtered out. Filtering the network traffic takes place during reception. Network traffic is inspected, and if an unwanted reception is detected, the unwanted data is discarded when it reaches media access controller (MAC) of the network stack of the electronic device. An electronic device, functioning as a node, embodying aspects of the invention is described, and a computer program for carrying out the invention is also described.

Abstract: 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 characterised 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.

Abstract: A method of limiting the amount of network traffic reaching a local node in an electronic device operating an Ethernet networking protocol and using a network stack including at least one physical layer (PHY) and one link layer, preferably a media access controller (MAC). The electronic device is connected to a communication network, the network traffic is filtered, and an unwanted data reception is filtered out. Filtering the network traffic takes place during reception. Network traffic is inspected, and if an unwanted reception is detected, the unwanted data is discarded when it reaches media access controller (MAC) of the network stack of the electronic device. An electronic device, functioning as a node, embodying aspects of the invention is described, and a computer program for carrying out the invention is also described.