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Re: [6lowpan] Fwd: Re: which addresses can be registered?

Richard Kelsey <richard.kelsey@ember.com> Thu, 14 April 2011 23:56 UTC

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Date: Thu, 14 Apr 2011 19:56:23 -0400
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To: Erik Nordmark <nordmark@acm.org>
In-reply-to: <4DA783D4.6000309@acm.org> (message from Erik Nordmark on Thu, 14 Apr 2011 16:31:32 -0700)
From: Richard Kelsey <richard.kelsey@ember.com>
References: <4DA783D4.6000309@acm.org>
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Cc: 6lowpan@ietf.org
Subject: Re: [6lowpan] Fwd: Re: which addresses can be registered?
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> Date: Thu, 14 Apr 2011 16:31:32 -0700
> From: Erik Nordmark <nordmark@acm.org>
> 
> On 4/14/11 5:34 AM, Richard Kelsey wrote:
> > As far as I can tell from the 6LoWPAN ND draft, the only
> > addresses that cannot be registered are multicast addresses.
> > Is this correct?  For example, can a link-local address be
> > registered?  Can any prefix be used when registering with
> > any 6LBR?
> 
> The draft doesn't forbid registering a link-local address, but it also
> doesn't require it.

Thank you.  The question arose with respect to link-local
addresses derived from IEEE 802.15.4 16-bit short addresses,
which require some form of DAD.

Just to be clear, if there are two 6LBRs which advertise
different prefixes and a host configures addresses for
both prefixes, then both addresses need to be registered
with both 6LBRs?
                                  -Richard Kelsey

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