A system and a method for analyzing a plurality of data packets where the data packets are analyzed to determine which of a number of subsequent process(es) is/are to further analyze the data packets. Information identifying the subsequent process(es) is added to a FIFO. An unknown data packet type is not immediately recognizable, whereby a storage location is reserved in the FIFO, and the data packet is fed to a separate characterizing process deriving the information relating to the relevant process(es), which information is subsequently fed to the relevant storage location in the FIFO, so that the order of data packets represented in the FIFO is the order of receipt of the data packets. From the FIFO, information is fed to a work list or storage of the relevant subsequent processes to process the pertaining data packets. This processing may also be in the chronological order of receipt of the data packets.