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Packet tunneling optimization to wireless devices accessing packet-based wired networks

  • US 6,496,505 B2
  • Filed: 12/11/1998
  • Issued: 12/17/2002
  • Est. Priority Date: 12/11/1998
  • Status: Expired due to Term
First Claim
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1. A method of providing packet delivery to a wireless device having a foreign agent over a wired packet-based network, said method comprising the steps of:

  • providing a home agent corresponding to said wireless device with a foreign agent address associated with said wireless device, said wireless device also having a home address;

    receiving, at said home agent, a packet having said home address as a packet header destination address;

    substituting said foreign agent address for said home address as said packet header destination address for said packet;

    forwarding said packet from said home agent to said packet header destination address; and

    setting a header field included within said packet to identify said packet as a packet on which tunneling optimization has been performed, said packet header being substantially the same size after substitution.

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