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

Brian E Carpenter <brian.e.carpenter@gmail.com> Sat, 13 February 2021 04:42 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: Michael Richardson <mcr+ietf@sandelman.ca>, IPv6 Operations <v6ops@ietf.org>, "6man@ietf.org" <6man@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> <9877D352-E9BB-453B-A676-D2B5C546C1C2@gmail.com> <11035C3E-BA75-4B9D-A047-B2AA1DE23BEA@fugue.com> <b3f1c53f-c22d-c9fb-6094-9a15d79fcd43@si6networks.com> <b9972eb4-b4db-e82d-12ec-1cfcc75a9e45@gmail.com> <6488.1613188541@localhost>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
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Date: Sat, 13 Feb 2021 17:42:45 +1300
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On 13-Feb-21 16:55, Michael Richardson wrote:
> 
> Brian E Carpenter <brian.e.carpenter@gmail.com> wrote:
>     > ULAs SHOULD be treated exactly like GUAs for all practical purposes
>     > (including using a default router for them), with the exception that
>     > they MUST be filtered by border routers at a domain boundary that is
>     > defined administratively. The only extra requirement is that ULA
>     > prefixes MUST be unique within that domain boundary. That's all, I
>     > think.
> 
> But, that's pretty much always just BCP38, right?

Yes, I think so. While Fernando is correct that our terminology is a bit
dubious, I don't think there's an actual operational problem here. It's more
that the terminology makes things hard to explain.

    brian