[address-policy-wg] 2007-05 New Policy Proposal (IPv6 ULA-Central)

Randomness could be a natural outcome if the default configuration for SOHO
routers was to create one and bury the ability to specify it under some
'Advanced/Experts-only' option. 

There is a 'need' for this space to satisfy Enterprise network managers that
have external partnerships and are unwilling to deal with collisions no
matter how unlikely. While these organizations could use their PI space for
this, they don't want to because that ends up impacting their internal
routing due to the number of deaggregates that get announced. 

Tony


> -----Original Message-----
> From: address-policy-wg-admin at ripe.net [mailto:address-policy-wg-
> admin at ripe.net] On Behalf Of Jeroen Massar
> Sent: Friday, May 04, 2007 10:17 PM
> To: Vince Fuller
> Cc: address-policy-wg at ripe.net
> Subject: Re: [address-policy-wg] 2007-05 New Policy Proposal (IPv6 ULA-
> Central)
> 
> Vince Fuller wrote:
> >>   The general solution of
> >>   the probability of a collision after d draws from n possible values
> >>   is given by:
> >>
> >>      P = 1 - ((n!) / ((n**d)((n-d)!)))
> >>
> >>   Given that the value for n is 2.199,023,255,552, then the objective
> >>   is to find the lowest value of d for which P is greater than or
> equal
> >>   to 0.5. In this case the value for d  is some 1.24 million.
> >>
> >>
> >> http://draft-huston-ipv6-local-use-comments.potaroo.net
> >
> > Are people going to pick random values? I'd expect a more likely
> > outcome to be that they will pick strings that are easy to remember.
> > How many collisions will there be if that is the case? Remember
> DEADBEEF?
> 
> If one is doing that, then why even bother using ULA's. Just use
> 1234::/48 or something similar then ;)
> 
> One can't engineer around stupid people unfortunately...
> 
> Greets,
>  Jeroen