Patent ID: 9686095
Date: 2017-06-20
CPC Classifications: H04L

Claim:
1. A network analysis device, comprising: an electronic message collector collecting electronic messages, the electronic message collector including a first electronic message information collector collecting first electronic message information regarding electronic messages transferred on a first network and a second electronic message information collector collecting second electronic message information regarding electronic messages transferred on a second network; a first storage storing the first electronic message information collected by the first electronic message information collector; a second storage storing the second electronic message information collected by the second electronic message information collector; and an electronic message associator associating the first electronic message information stored in the first storage and the second electronic message information stored in the second storage based on protocol interconversion scheme information between the first network and the second network, wherein the electronic message associator determines a collected electronic message unassociated with stored electronic message information to be an abnormal electronic message, counts each electronic message determined to be abnormal electronic messages, and outputs a number of counted electronic messages and information regarding whether the determined abnormal electronic message transferred on the first network or the second network to a display.