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Multicast support by mobile routers in a mobile ad hoc network

  • US 20080219237A1
  • Filed: 03/07/2007
  • Published: 09/11/2008
  • Est. Priority Date: 03/07/2007
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving by a mobile router a multicast-supported router advertisement message from an attachment mobile router in a mobile ad hoc network, the multicast-supported router advertisement message specifying an attachment prefix and a multicast-capable identifier;

    attaching by the mobile router to the attachment mobile router in response to the multicast-capable identifier in the multicast-supported router advertisement message and according to a protocol requiring establishment in the mobile ad hoc network of a tree topology having a single multicast clusterhead, the attaching including selecting a default attachment address within an address space of the attachment prefix;

    receiving by the mobile router a multicast request, from an attached node, for access in the mobile ad hoc network for receiving a multicast stream; and

    outputting by the mobile router a neighbor advertisement message with multicast extension to the attachment router, the neighbor advertisement message with multicast extension specifying that access to the multicast stream is requested via the default attachment address.

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