Hi Geoff:

RFC 4861 is not designed for non transitive links. So applying it on a
LoWPAN is non-standard. 
When networks with new characteristics come up, there's a need for an
IPv6-over-Foo work; Thus the work at 6LoWPAN.
Whatever this WG comes up with, that will be how IPv6 operates on a
LoWPAN. The rest is proprietary experimentation.

At this point, we do not have a requirement for interoperability for
RFC4861 nodes.

If you want to add that requirement and thus impact the spec, then you
need to justify your case:
 
- Can you build a workable solution with RFC 4861? 
- What are the limits/trade offs?
- What use cases do that satisfy?
- Does such a use case really need to Interop with standard 6LoWPAN on a
same link?

Note1: there's no IPv6-over-Foo for 802.11 infra mode because the infra
mode emulates a transit link like Ethernet at L2, and thus RFC 4861
applies. OTOH, 6LoWPAN ND and ROLL will be a perfect match for 802.11
adhoc mode. But then there's no requirement to Interop that with adhoc
mode and it is wise not to collocate adhoc and infra.

Note2: As soon as you go L3, you can interconnect nodes on alien link
layers. That's what IP is all about. Would your use case be satisfied if
the nodes connect via a router?

Pascal
>-----Original Message-----
>From: [email protected] [mailto:[email protected]] On
Behalf Of Geoff Mulligan
>Sent: jeudi 17 septembre 2009 08:22
>To: 6lowpan
>Subject: [6lowpan] RFC4861 and 6lowpan ND
>
>Has anyone determined if a standard RFC4861 end device would be able to
>work with a 6lowpan ND edge router, would it be able to get the
>necessary commissioning data (prefix, default router, ...)
>
>And the reverse, could a 6lowpan ND end device get commissioned via a
>standard RFC4861 ND router?
>
>       geoff
>
>
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