Abstract: The present invention relates to an access node (2a, 2b) comprising: a forwarding mean (31) adapted to forward data traffic according to a forwarding table (32) that comprises one-to-one associations between destination hardware addresses and respective egress interfaces, a forwarding configuration means (33) adapted to configure forwarding entries into the forwarding table, a capturing means (34) adapted to capture auto-configuration messages exchanged between an auto-configuration server (4) and subscriber devices for assigning network addresses thereto. An access node according to the invention is characterized in that the forwarding configuration means is coupled to the capturing means, and is further adapted to synchronize the configuration of a particular forwarding entry related to a particular hardware address (MAC@1) of a particular subscriber device (1) with the lease of a particular network address (IP@1) to the particular subscriber device.

Abstract: The present invention relates to an access node (2a, 2b) comprising: a forwarding mean (31) adapted to forward data traffic according to a forwarding table (32) that comprises one-to-one associations between destination hardware addresses and respective egress interfaces, a forwarding configuration means (33) adapted to configure forwarding entries into the forwarding table, a capturing means (34) adapted to capture auto-configuration messages exchanged between an auto-configuration server (4) and subscriber devices for assigning network addresses thereto. An access node according to the invention is characterized in that the forwarding configuration means is coupled to the capturing means, and is further adapted to synchronize the configuration of a particular forwarding entry related to a particular hardware address (MAC@1) of a particular subscriber device (1) with the lease of a particular network address (IP@1) to the particular subscriber device.

Abstract: The present invention relates to a relay unit (21) for use in a data communication system (1) operable to transmit multicast traffic, and adapted to receive a membership report (61) from a particular station (11), whereby a membership of a particular multicast group is notified.

Abstract: Method for securing communication in a local area network switch (AN) comprising a user interface (UI) and a network interface (NI), comprises the steps of extracting a source address (MACi) from each packet received by said Local area network switch (AN) and storing said address (MACi) together with associated information into a address forwarding table (FT) comprised in said Local area network switch (AN) is characterised in that a distinction is made between source addresses received from the user interface (UI) and the network interface (NI), such that upon detecting that a source address (MACi) contained within a newly received packet at the user interface (UI) was already stored as a source address received at the network interface (NI), said newly received packet will be discarded and its source address contained therein will not be stored within said address forwarding table (FT).