Verizon DSL moving to CGN

Mon Apr 8 18:54:23 UTC 2013

Like you, I would like to be optimistic about many v4-only apps and
v4-only devices becoming dual-stack sooner than later.

But knowing that a significant (50%+) of android devices may not support
IPv6 (just like my brand new Samsung Galaxy 7'' tablet (just bought over
the weekend) being v4-only) and may not be upgraded by their users to the
right software, and that Skype etc. apps are out there, my optimism fades
away.

Cheers,
Rajiv

-----Original Message-----
From: Owen DeLong <owen at delong.com>
Date: Monday, April 8, 2013 1:38 AM
To: Rajiv Asati <rajiva at cisco.com>
Cc: Fabien Delmotte <fdelmotte1 at mac.com>, nanog list <nanog at nanog.org>
Subject: Re: Verizon DSL moving to CGN

>
>On Apr 7, 2013, at 18:21 , Rajiv Asati (rajiva) <rajiva at cisco.com> wrote:
>
>> Dual-stack in the home networks will stay with us for a long time
>>(beyond 2020!) until v4-only user devices and v4-only apps get refreshed.
>
>I disagree. I think that v4-only apps and devices will get relegated to
>being connected through v4-v6 adapter appliances until they are fixed.
>
>IPv4 is simply going to become far too expensive to maintain to be able
>to deliver it for residential pricing.
>
>> Of course, this doesn't mean that the ISP access needs to stay
>>dual-stack, thanks to MAP, 464XLAT etc.
>> 
>
>Right... Those are some of the ways that maintaining IPv4 will become so
>expensive. ;-)
>
>Owen
>