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Transfer device and transfer system

  • US 10,237,177 B2
  • Filed: 07/26/2016
  • Issued: 03/19/2019
  • Est. Priority Date: 08/05/2015
  • Status: Active Grant
First Claim
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1. A transfer device comprising:

  • a first port connected to a layer 3 network;

    a second port connected to a layer 2 network;

    a storage unit that stores data processing information with which a media access control (MAC) address of a communication device in the layer 2 network and information regarding processing of data are brought into correspondence with each other, and address information with which an internet protocol (IP) address and the MAC address of the communication device in the layer 2 network are brought into correspondence with each other; and

    a transfer unit that, when the transfer unit receives data addressed to the communication device in the layer 2 network through the first port, searches the address information based on an IP address included in the data to acquire a MAC address corresponding to the IP address included in the data, searches the data processing information based on the acquired MAC address, and depending on a result of the search, controls whether to transfer the data through the first port based on information regarding processing of data corresponding to the acquired MAC address,when the transfer unit receives data addressed to a communication device in the layer 3 network through the second port, the transfer unit searches the data processing information in the storage unit based on a MAC address included in the data, and depending on a result of the search, controls whether to transfer the data through the first port based on information regarding processing of data corresponding to the MAC address included in the data.

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