Patent ID: 8724533
Filing Date: 2014-05-13
Classification: H04L,H04W

Abstract:
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 host-based multicast subscriber request message, from an attached host node, for receiving a multicast stream; and outputting by the mobile router a neighbor advertisement message with multicast extension to the attachment mobile router in response to receiving the host-based multicast subscriber request message, the neighbor advertisement message with multicast extension specifying that access to the multicast stream is requested via the default attachment address, the mobile router not forwarding to the attachment node the host-based multicast subscriber request message received from the attached host node; the neighbor advertisement message with multicast extension enabling the single multicast clusterhead to create a host-based multicast subscriber request message, for transmission to a multicast source or rendezvous point via a wide area network, requesting the single multicast clusterhead receives the multicast stream as a multicast proxy host.