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VPN system in mobile IP network, and method of setting VPN

  • US 20020018456A1
  • Filed: 03/08/2001
  • Published: 02/14/2002
  • Est. Priority Date: 07/26/2000
  • Status: Active Grant
First Claim
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1. A server apparatus provided in a home network of an IP network using a protocol that automates the management of an IP address and the transfer of a communication packet to a move destination when a terminal has moved between networks on the IP network, the server apparatus comprising:

  • memory means that stores information for constructing a safe communication path within an IP network in relation to the terminal; and

    distribution means that distributes the information to construct a safe communication path between the terminal within an external network of a move destination and the other terminal with whom the terminal communicates.

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