Re: [RRG] Re: Practical Proposals vs. endless theoretical discussions

[David Conrad <drc@virtualized.org>]

Steven,

On Sep 15, 2008, at 5:43 AM, Steven Blake wrote:
> > so I can't see how you can assume you can change the
> > whole world over to IPv6 inside 8 years.
> In five years there will be > 2 billion new cell phones with IP  
> stacks.
> How do you propose to provide global connectivity to these?
The same way global connectivity is provided to most cell phones  
today, that is, NAT.  "Global" IPv6 connectivity (to use the term  
loosely) gets you to an infinitesimal amount of content on the  
Internet.  The content most people want is available via IPv4 and  
there is no incentive for content providers to spend the money to  
change this.  At best, I suspect that within 5 years you might see  
IPv6 as an intra-ISP infrastructure through which you tunnel NAT'd  
IPv4.  In other words, the IPv4 address becomes a non-unique  
identifier over an infrastructure that uses IPv6 addresses as locators  
(with those locators numbering NAT devices (ITRs and ETRs if you  
prefer)).
Regards,
-drc




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