Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2011-06-28
2011-06-28
Patel, Jayanti K (Department: 2465)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S410000, C370S469000, C370S474000, C370S475000
Reexamination Certificate
active
07969996
ABSTRACT:
The present invention provides a tunneling apparatus which can perform tunneling without requiring the network to be suspended or requiring the existing configuration of a local network to be modified. The frame sorting part11determines whether or not a frame input from a local network through a physical interface is an encapsulated tunnel frame. If such frame is a tunnel frame, the frame sorting part11outputs such frame to the decapsulation unit of the tunneling part13. If such frame is not a tunnel frame, the frame sorting part11outputs such frame to at least one of the address resolution unit of the kernel part12and the encapsulation unit of the tunneling part, based on the characteristics of such frame.
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Ruixi Yuan and W. Timothy Strayer “Virtual Private Networks: Technologies and Solutions,” Pearson Education Co., Ltd., Japan, 2001, pp. 12-13.
“EtherIP: Tunneling Ethernet (registered trademark) Frames in IP Datagrams”<URL http://www.ietf.org/rfc/rfc3378. txt>, pp. 1-12.
“SoftEther.com—SoftEther Virtual Ethernet (registered trademark) System—SoftEther VPN System” <URL http://www.softether.com/jp/>, pp. 1-10.
NEC Corporation
Patel Jayanti K
Sughrue & Mion, PLLC
Zhu Bo Hui A
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