[156725] in North American Network Operators' Group

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Re: IPv6 Address allocation best practises for sites.

daemon@ATHENA.MIT.EDU (John Levine)
Mon Sep 24 19:48:09 2012

Date: 24 Sep 2012 23:47:18 -0000
From: "John Levine" <johnl@iecc.com>
To: nanog@nanog.org
In-Reply-To: <5060E440.9020503@illuminati.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

>Does the best practise switch to now using one IPv6 per site, or still 
>the same one IPv6 for multi-sites?

As I've been migrating my sites to IPv6, each site gets its own IP.
Works great.  I did find that I needed to improve my tools so I could
track the individual IP addresses and assign the appropriate DNS names
to them, as I took several dozen (it's a small machine) sites and put
them on IPv6.

Other than not wanting to go to the effort to change all the config
files, it's hard to think of a reason to share IPv6 addresses for
anything.  Virtual hosts were specifically invented to conserve IPv4
addresses; they don't provide any added function.

R's,
John

PS: Well, there is my spider trap at http://web.sp.am which would be
hard to do without using a shared IP.  But that's perverse.


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