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Re: off-link model in the 6lowpan talk: draft-ietf-6lowpan-nd-07

Carsten Bormann <cabo@tzi.org> Tue, 10 November 2009 02:11 UTC

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Subject: Re: off-link model in the 6lowpan talk: draft-ietf-6lowpan-nd-07
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From: Carsten Bormann <cabo@tzi.org>
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Date: Tue, 10 Nov 2009 11:12:03 +0900
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To: "Hemant Singh (shemant)" <shemant@cisco.com>
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Cc: "Pascal Thubert (pthubert)" <pthubert@cisco.com>, ipv6@ietf.org, Erik Nordmark <erik.nordmark@sun.com>, Dave Thaler <dthaler@microsoft.com>, Samita Chakrabarti <samitac@ipinfusion.com>, 6lowpan@ietf.org
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On Nov 10, 2009, at 11:05, Hemant Singh (shemant) wrote:

> ND as specified by RFC 4861 has no means to
> signal a prefix as off-link, so the L bit cleared is not signaling
> off-link.

Right, L=0 does not say "this is off-link", it says "I'm not saying it  
is on-link".
(RFC 4861, section 4.6.2 and 6.3.4.)
Now, if nobody ever says it is on-link, it remains off-link.

Gruesse, Carsten

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