Data acquisition device, client server system, data acquisition method and program

摘要

To provide a data acquisition device and the like that can contribute to automatically acquiring data when an intermittent failure occurs.SOLUTION: A control unit identifies a port of a network apparatus connected to a server based on an IP address of a server, ARP table information on the network apparatus, and MAC address table information and sets monitoring, acquires monitoring information including IP addresses corresponding to ports that are ranked in a first predetermined number from the one with the maximum communication data amount among ports to which monitoring is set, identifies ports that are ranked in a second predetermined number less than the first predetermined number based on the monitoring information, the ARP table information, and the MAC address table information and sets capture, and sets the network apparatus connected to a data acquisition device to output communication data of the ports to which capture is set.SELECTED DRAWING: Figure 5