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Re: [v6ops] IPv6 mostly for DS-Lite

Brian E Carpenter <brian.e.carpenter@gmail.com> Thu, 21 March 2024 22:16 UTC

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Date: Fri, 22 Mar 2024 11:16:41 +1300
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To: Mark Andrews <marka@isc.org>
Cc: Ondřej Caletka <ondrej.caletka@gmail.com>, v6ops <v6ops@ietf.org>
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From: Brian E Carpenter <brian.e.carpenter@gmail.com>
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Subject: Re: [v6ops] IPv6 mostly for DS-Lite
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On 22-Mar-24 08:57, Mark Andrews wrote:
> The market has picked both DS-lite and DNS64/NAT64. Both are deployed by ISPs.  One actually worked. The other required a series of corrections to be put out making it more visible to the IETF.

I don't think anyone is saying "switch them off". It's a question of where we spend IETF effort.

> 
> Daisy chaining DS-lite and 464XLAT will be a real mess as both use the same IPv4 address rage for source addresses.  

That is... unfortunate.

> Or are you saying only those that can get full dual stack can deploy IPv6-mostly.

I'm not sure I can parse that. The end point must be that applications *see* a full dual stack whatever mechanism is deployed on the wire. That applies to every host on an IPv6-mostly network (unless there is such a thing as an IPv4-only host, I suppose).

    Brian

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