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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 00:36 UTC

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From: Fernando Gont <fgont@si6networks.com>
To: v6ops@ietf.org
References: <160989494094.6024.7402128068704112703@ietfa.amsl.com> <6fe3a45e-de65-9f88-808d-ea7e2abdcd16@si6networks.com> <F4E00812-E366-4520-AE17-7BB46E28D575@gmail.com> <b2e51a89-e8a7-9ddb-643d-63a98569b03c@si6networks.com> <CB9EA5F4-A241-46A4-A371-B2A1BFB8C72F@fugue.com> <dff93a2e-f4f8-01c9-ce88-c2dbb20a04f1@si6networks.com> <759637FF-77C7-41EA-8671-73988AD48873@fugue.com> <6ab2d348-6220-6744-9585-1f99e23a7ee0@gont.com.ar>
Cc: Ted Lemon <mellon@fugue.com>, "6man@ietf.org" <6man@ietf.org>
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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)
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On 12/2/21 21:29, Fernando Gont wrote:
[...]
> 
>> So maybe a better question to ask is, why are we discussing this? What 
>> problem are we trying to solve?
> 
> As per the above, either the definition in the scoped addressing 
> architecture is wrong, or flagging ULAs as "global scope" is incorrect.
> 
> The problem I'm trying to solve is one of architecture, so to speak.

The expectation to have a registry for ULAs (as discussed recently on 
6man@ ) is, in a way, closely related to this; the expectation that they 
can uniquely identify networks and interfaces at an Internet-wide span, 
when they actually can't.

(Besides the fact that if we are going to have an architecture in the 
first place, it better matches the protocol spec... or the other way 
around).

Thanks,
-- 
Fernando Gont
SI6 Networks
e-mail: fgont@si6networks.com
PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492

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