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Re: [v6ops] Use of MAC addresses in IPv6 link local addresses

Francis Dupont <Francis.Dupont@fdupont.fr> Sun, 09 July 2017 16:52 UTC

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From: Francis Dupont <Francis.Dupont@fdupont.fr>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>
cc: Mark Smith <markzzzsmith@gmail.com>, Toerless Eckert <tte@cs.fau.de>, v6ops list <v6ops@ietf.org>
In-reply-to: Your message of Fri, 07 Jul 2017 14:13:09 +1200. <bf5d43dd-2664-9f6b-a045-f473c87f902a@gmail.com>
Date: Sun, 09 Jul 2017 18:35:55 +0200
Archived-At: <https://mailarchive.ietf.org/arch/msg/v6ops/yFBlPITVfPULQjXyiy98HNh_mdM>
Subject: Re: [v6ops] Use of MAC addresses in IPv6 link local addresses
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 In your previous mail you wrote:

>  > An Internet search for "fe80::1" shows that this is also a common
>  > value being used for router interfaces.
>  
>  Which makes my head hurt, since it's a guaranteed failure if two
>  such routers are on the same subnet.

=> if you want to give the same address to all routers I recommend
the fe80:: address. At least it is very officially an anycast address!

Regards

Francis.Dupont@fdupont.fr

PS: and of course it won't work as you expect (I tried a very long
time ago: a fine idea on and only on the paper :-).

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