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Re: [v6ops] IPREF as a transitioning tool

Gert Doering <gert@space.net> Sun, 12 November 2023 10:11 UTC

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Date: Sun, 12 Nov 2023 11:10:53 +0100
From: Gert Doering <gert@space.net>
To: waldemar <waldemar@wdmsys.com>
Cc: Martin Hun??k <martin.hunek@tul.cz>, v6ops@ietf.org
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Subject: Re: [v6ops] IPREF as a transitioning tool
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Hi,

On Sat, Nov 11, 2023 at 03:57:08AM -0800, waldemar wrote:
> That's correct, but
> no site would ever employ dual stacks inside their network. That alone is a
> gain, and indeed that is the way to do away with existing internal dual
> stacks. 

That would be a great result (sites being able to run ipv6-only today) -
but we do not need IPERF for that, NAT64/DNS64 (and possibly 464XLAT)
would enable that just fine.

Why is it not happening?  Because applications still hard-code IPv4 sockets,
and IPv4 addresses, so require an IPv4 path in the local network (or a
local CLAT).

When we have these all fixed, we can go ipv6-only in the local network
and use NAT64/DNS64 to reach those last bastions of IPv4.  Mobile operators
have demonstrated that this works nicely - 10 years ago already.


So, what extra advantage would this new mechanism which would need to
be deployed everywhere (your words) bring?

(And why did LISP not succeed?)

Gert Doering
        -- NetMaster
-- 
have you enabled IPv6 on something today...?

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