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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)

Brian E Carpenter <brian.e.carpenter@gmail.com> Sat, 13 February 2021 04:42 UTC

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To: Michael Richardson <mcr+ietf@sandelman.ca>, IPv6 Operations <v6ops@ietf.org>, "6man@ietf.org" <6man@ietf.org>
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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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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 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

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