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Re: [v6ops] AWS ipv6-only features

Gert Doering <gert@space.net> Fri, 26 November 2021 14:12 UTC

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Date: Fri, 26 Nov 2021 15:12:37 +0100
From: Gert Doering <gert@space.net>
To: Mark Smith <markzzzsmith@gmail.com>
Cc: Ole Troan <otroan@employees.org>, IPv6 Ops WG <v6ops@ietf.org>, Lorenzo Colitti <lorenzo=40google.com@dmarc.ietf.org>
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Subject: Re: [v6ops] AWS ipv6-only features
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Hi,

On Fri, Nov 26, 2021 at 08:34:39PM +1100, Mark Smith wrote:
> Here's an example I think of to demonstrate the point.
> 
> I've had the same mobile phone number since 1995, and anybody who knows it
> can still call me on it.
> 
> That's across multiple carriers due to number portability (and I'm quite
> aware of the scaling issue of doing that, however it seems to be working
> well enough).

Actually it's an impressive example of "if you use enough brute force,
an amazingly bad lookup mechanism can still be made to work".

Humans should not be thinking about numbers.  Humans should use names
for things, and have some sort of dictionary to do the lookup...
(oh wait, phone books *have* been a thing)

> Imagine not even knowing your own phone number. That's what NAT is doing.
> It makes things callers-only, even when being a receiver would be far
> better.

This is more a problem of not having a name-to-number mapping service, 
and having N:1 NAT setups.

NPT66 does not have to be one-way.

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

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