[lwip-devel] [task #13455] Extend neighbhor discovery ti support 6LoWPAN better.

[Krishna Shingala]

URL:
  <http://savannah.nongnu.org/task/?13455>

                 Summary: Extend neighbhor discovery ti support 6LoWPAN
better.
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: kshingala
            Submitted on: Sat Jan 24 12:44:21 2015
                Category: IPv6
         Should Start On: Sat Jan 24 00:00:00 2015
   Should be Finished on: Tue Feb 24 00:00:00 2015
                Priority: 5 - Normal
                  Status: None
                 Privacy: Public
        Percent Complete: 0%
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None
                  Effort: 0.00

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Details:

For use cases that implement a 6LoWPAN inerface, the context identifiers and
prefixes distributed as a part of neighbor discovery procedures need to be
provide to the 6LoWPAN layer to enable efficient compression and decompression
of the IP header. This interface today does not exist in lwIP as lWIP does not
accound for the 6LoWPAN. It will be extremly useful to enable notifying new
prefixes and context identifier to the netif which can set these for the
6LoWPAN layer. Below is a short diagram to depict position of 6LoWPAN when
using lwIP stack.

          +----------------+------------------+
          |      ND6       |       MLD6       |    
          +----------------+------------------+
          |            IPv6/ICMPv6            |
          +-----------------------------------+
          |              netif                |
          +-----------------------------------+
          |             6LoWPAN               |
          +-----------------------------------+

               




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