The compact KNX IP Router 751 enables the forwarding of telegrams between different lines via a LAN (IP) as a fast backbone. The device also serves as a programming interface between a PC and the KNX bus (e.g. for ETS programming). The IP address can be assigned via DHCP or through the ETS configuration. The device works according to the KNXnet/IP specification using core, device management, tunneling and routing. The KNX IP Router 751 has a filter table (8 kByte) and can cache up to 150 telegrams. The power is supplied via the KNX bus.