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Methods and apparatus for using a care of address option

  • US 20040100951A1
  • Filed: 09/17/2003
  • Published: 05/27/2004
  • Est. Priority Date: 09/18/2002
  • Status: Active Grant
First Claim
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1. A communications method for use in a communications system including an end node and a first router, the method comprising:

  • operating said first router to receive a packet including a source address and an option field, said option field including a Care of Address corresponding to said node; and

    operating said first router to perform ingress filtering using said Care of Address as an ingress filter input, the result of said filtering being conditional on the value of the Care of Address.

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