PACKET CAPTURING DEVICE, PACKET CAPTURING SYSTEM, PACKET CAPTURING PROGRAM, AND METHOD FOR PACKET CAPTURING

摘要

To provide a packet capturing device, a packet capturing system, a packet capturing program, and a method for packet capturing that can store adequate data in a smaller storage capacity on a packet-by-packet basis.SOLUTION: The processing of capturing a packet includes: acquiring a packet (St1); acquiring attribute information on the packet (St2); dividing the packet into a plurality of packets according to the attribute information (St5); and storing the plurality of pieces of data into a plurality of storage devices, respectively (St10 to St12). If the number of packet reached the upper limit number M (St6:Yes), a new group is created in packet data bases 20 to 22 (St7). After that, a storage period table is referred to (St8), the storage period of the group of each of the packet databases 20 to 22 is calculated from the registered storage periods Ta to Tc and is set in each header information (St9).SELECTED DRAWING: Figure 10