Re: Extending a /64

Mark Smith <markzzzsmith@gmail.com> Sun, 15 November 2020 21:26 UTC

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From: Mark Smith <markzzzsmith@gmail.com>
Date: Mon, 16 Nov 2020 08:26:22 +1100
Message-ID: <CAO42Z2yk5pEKGFEYk3MDDDybVDZt6GiE1Pw932n4gLaqSxGH7A@mail.gmail.com>
Subject: Re: Extending a /64
To: Nick Hilliard <nick@foobar.org>
Cc: 6man WG <ipv6@ietf.org>
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On Mon, 16 Nov 2020, 08:18 Nick Hilliard, <nick@foobar.org> wrote:

> Mark Smith wrote on 15/11/2020 20:55:
> > Why are half a million planes going to be on the Internet?
>
> Flipping this around, why would we think that most or all planes in the
> next 50 years would be off-grid?
>


Because they can fall out of the sky and 100s of people can die.

Just because you can do something doesn't mean you should.

This risk isn't taken with electricity smart meter networks, they use ULAs.



> /39 is seems very little for an entire sector of human enterprise. Why
> wouldn't we allocate more?  Or at least create an allocation that had
> plenty of room for expansion.
>


Why do all planes have to come from a single prefix. A single prefix makes
an easy DoS target.

The right DoS may take out all planes at once.

DoSs have already reached multiple terabits. Diversity if targets, rather
than a single one, such as a single prefix, is a useful mitigation.

2.3 Tbps:

 https://www.thesslstore.com/blog/largest-ddos-attack-in-history/



> Nick
>
>