METHOD FOR DETECTING A NUMBER OF CLIENT TERMINAL FROM THE INTERNET REQUEST TRAFFICS SHARING THE PUBLIC IP ADDRESS AND SYSTEM FOR DETECTING THE SAME

摘要

The present invention aims to detect the number of a plurality of user client terminals on private networks sharing an identical public IP address. The present invention provides a method and a system using the method, the method which comprises the steps of: mirroring a DNS request message of a client terminal generated by the client terminal to send the mirrored message to a push server; arranging a push server to parse the mirrored DNS request message traffic being inputted to identify whether the message is an actual DNS request message; extracting Transaction ID and Domain Name as information required to generate a fake DNS response message; arranging the push server to identify whether the extracted domain is a domain the push server is watching; and if so, converting the Domain Name to domain IP, generating a fake DNS response including the extracted Transaction ID and the converted domain IP, with setting TTL value in Answers field to a value specified in the push server, and transmitting the fake DNS response to the client terminal, thereby counting the number of client terminals connected to a router by counting the number of DNS request messages reached to an analysis server for a predetermined time.