[address-policy-wg] RE: Private address space in IPv4 and IPv6 [was something irrelevantly titled]

On 29 May 2009, at 11:16, <poty at iiat.ru> <poty at iiat.ru> wrote:

> Then Radianz could easily create its own rules without bothering the
> World, couldn't it? And so - use ANY IP addresses. Why should I see  
> the
> internal networks (I use corrected "private" meanings) of Radianz or
> other such companys? If it is NEVER interact with my or the most of
> other networks in the Internet?

Hi, Vladislav

As others have tried to point out, private networks often still  
connect to the Internet, so in order to prevent connectivity problems  
between -- in this case, Radianz -- and another, unspecified network  
on the Internet, then the addressing that Radianz need to use for  
their private networks must be globally unique.

IP networks can't function properly (or at least, as intended) when  
consumers of addresses start using addresses that are already assigned  
to others already.

We shall see this be a problem for networks who ignore this warning as  
the last v4 /8s start to be assigned.

Kind regards,
Andy Davidson