Re: [v6ops] Scope of Unique Local IPv6 Unicast Addresses (Fwd: New Version Notification for draft-gont-6man-ipv6-ula-scope-00.txt)

Fernando Gont <fgont@si6networks.com> Sat, 13 February 2021 21:33 UTC

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Subject: Re: [v6ops] Scope of Unique Local IPv6 Unicast Addresses (Fwd: New Version Notification for draft-gont-6man-ipv6-ula-scope-00.txt)
To: Brian E Carpenter <brian.e.carpenter@gmail.com>, David Farmer <farmer@umn.edu>, Fred Baker <fredbaker.ietf@gmail.com>
Cc: IPv6 Operations <v6ops@ietf.org>, "6man@ietf.org" <6man@ietf.org>
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From: Fernando Gont <fgont@si6networks.com>
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Date: Sat, 13 Feb 2021 18:33:05 -0300
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On 13/2/21 18:17, Brian E Carpenter wrote:
> On 13-Feb-21 22:19, Fernando Gont wrote:
> ...
>> Well, whether we call it out or not, as per RFC4007:
>>
>>                 scope(LL) < scope(ULA) < scope(GUA)
> 
> And there's the fallacy. This inequality only makes sense if reachability is strictly a matter of concentric circles. It isn't. Nice math, but not reality.
> 
> Slide 4 of https://www.cs.auckland.ac.nz/~brian/scope6.pdf

I don't follow. In all of your slides Area(link-local) < Area(ULA) < 
Area(global)....


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Fernando Gont
SI6 Networks
e-mail: fgont@si6networks.com
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