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Title : IPv4 Mobility extension for Multicast and Broadcast Packets
Author(s) : S. Chakrabarti, et al.
Filename : draft-chakrabarti-mip4-mcbc-01.txt
Pages : 18
Date : 2007-7-11
The IP Mobility Protocol [RFC3344] describes multicast and broadcast
packet transmission between the mobile node and the home network or
visited network. Reverse Tunneling for Mobile IP [RFC3024] includes
support for reverse tunneling of multicast and broadcast packets to
the home network using the encapsulating delivery style between
mobile nodes and the foreign agent. However, [RFC3024] says that
once the encapsulated delivery style is negotiated, all packets must
be encapsulated. In particular, this imposition prevents direct
delivery of unicast packets. This causes tunnel overhead in the
(typically) wireless medium between the mobile and the foreign agent.
This document removes this imposition It also provides alternatives
of direct delivery of multicast/broadcast packets between a foreign
agent and a mobile node if allowed by the underlying link-layer.
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