Method and apparatus for tunneling service of explicit multicast in mobile IP network
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United States of America Patent
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Apr 28, 2009
Grant Date -
Nov 11, 2004
app pub date -
Jun 14, 2004
filing date -
Dec 12, 2001
priority date (Note) -
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Abstract
Inventive embodiments relate to a method and an apparatus for tunneling service of an explicit multicast in a mobile IP network to forward multicast packets to plural mobile nodes with effect. When the apparatus providing the tunneling service for an explicit multicast in a mobile IP network receives a multicast packet from a correspondent node with a network, it extracts mobile nodes existing in a path for tunneling from among the plurality of mobile nodes. Also, after it creates an explicit multicast tunnel header having a destination address as a Co-Located Care-of Address (CL COA) of the mobile nodes existing in the path for tunneling, it tunnels a multicast packet that was encapsulated using the explicit multicast tunnel header to the mobile nodes.
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