Subject: Re: [vserver] Re: Linux source address selection vs. EUI-64
From: Romain Riviere <romain.riviere@gmail.com>
Date: Sun, 14 Nov 2010 11:27:06 +0100

 Sun, 14 Nov 2010 11:27:06 +0100

Le 14 nov. 2010 à 08:42, Eugen Leitl a écrit :

> On Sun, Nov 14, 2010 at 12:42:38AM +0100, Romain Riviere wrote:
> 
>>> Who knows, a /56 is a BIG space, yet if we start handing out /56 space to light
switches then perhaps we are back at square one?
>> 
>> Except that there are 2^56 /56 prefixes, roughly 10 million 
>> times the world population. I don't see exhaustion looming over the 35-year horizon
just quite yet :)-- 
> 
> I beg to differ. Dust mote sensor networks can easily be in
> excess of billions or trillions devices.
> 
> Moreover, the solar system is pretty big. Add self-replicating
> hardware, and suddenly 128 bits and 35 years don't appear
> that much.

Ok, so let's allocate a couple /32 for all these machines and be done with it. That's
a little under 8 × 10^28 per /32 :-)