The invention relates to a device, in particular a router, for bundling a plurality of Internet access lines into a virtual Internet access line for the purpose of providing the sum of the bandwidths of the plurality of Internet access lines for a transmission of data via the virtual Internet access line, wherein the device divides a data packet to be transmitted among a plurality of data packets for separate transmission via the plurality of Internet access lines, wherein the device is designed to calculate redundancy information and to transmit said redundancy information along, from which redundancy information lost data packets can be restored, such that packet losses on an Internet access line do not lead to packet losses on the bundled virtual line.