OMB: IPv6 by June 2008

Thu Jul 7 19:53:24 UTC 2005

At 1:02 PM -0500 2005-07-07, Kuhtz, Christian wrote:

>>  It doesn't scale.  Regardless of Moore's law, there are some
>>  fundamental physical limits that constrain technology.
>
>  I would contend that is not true.  What says that every device inside a
>  company, family, enterprise etc has to be available and reachable by
>  anyone on the planet in a bidirectional fashion as far as session
>  initiation is concerned?

	The problem is that you don't know, a priori, which devices will 
or will not need to be fully externally addressable.  Even if we talk 
about just mobile phones, it's easy to imagine billions of devices 
world-wide that will need connectivity in the near future.

	Most devices won't need full bidirectional connectivity all the 
time, no.  But it's also easy to imagine circumstances where you 
decide that you need to change the setting on the VCR or check the 
stove to see if you forgot and left it turned on.

	If you can give all the devices in your home full bidirectional 
connectivity (via a secure method, of course), then a whole lot of 
options open up that would otherwise not have been possible.

-- 
Brad Knowles, <brad at stop.mail-abuse.org>

"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."

     -- Benjamin Franklin (1706-1790), reply of the Pennsylvania
     Assembly to the Governor, November 11, 1755

   SAGE member since 1995.  See <http://www.sage.org/> for more info.