PACKET MONITORING DEVICE AND PACKET MONITORING METHOD FOR COMMUNICATION PACKET
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United States of America Patent
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Issued Date -
Sep 22, 2016
app pub date -
Mar 14, 2016
filing date -
Mar 20, 2015
priority date (Note) -
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Abstract
Provided is a packet monitoring method for a communication packet transmitted and received between a server and a control device including receiving the communication packet transmitted and received between the server and the control device; determining whether the received communication packet is abnormal, based on a history table including control information on communication packets received before the received communication packet and control information on the received communication packet; and performing a security operation according to results of the determination.
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