[142404] in North American Network Operators' Group
Re: IPv6 words
daemon@ATHENA.MIT.EDU (Leo Bicknell)
Fri Jun 24 09:50:32 2011
Date: Fri, 24 Jun 2011 06:50:24 -0700
From: Leo Bicknell <bicknell@ufp.org>
To: NANOG list <nanog@nanog.org>
Mail-Followup-To: NANOG list <nanog@nanog.org>
In-Reply-To: <F2C32C32-B805-4CA6-A7FD-60FB75686A19@lists.zabbadoz.net>
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In a message written on Fri, Jun 24, 2011 at 09:10:53AM +0000, Bjoern A. Ze=
eb wrote:
> If you want to do it, make sure you do understand the restrictions that a=
pply to IPv6 addresses, like U/G bits, etc. Too many people unfortunately =
just think it's cool in a weird geeky sense and violate RFCs with them. I =
was very close to write an article about that after W6D...
Perhaps I missed something in an RFC somewhere, but I believe those
bits only have meaning locally on an Ethernet LAN. They have no
meaning when used on non-Ethernet networks, for instance POS or on
a Loopback. If someone wanted to use them for a /128 virtual for
their web site for instance that would be ok.
Or, turning that around, if you assume an IPv6 address is part of a /64
on an Ethernet network, you have made a false assumption.
--=20
Leo Bicknell - bicknell@ufp.org - CCIE 3440
PGP keys at http://www.ufp.org/~bicknell/
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