Re: Verizon DSL moving to CGN

["Rajiv Asati (rajiva)" <rajiva () cisco com>]

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 () delong com>
Date: Monday, April 8, 2013 1:38 AM
To: Rajiv Asati <rajiva () cisco com>
Cc: Fabien Delmotte <fdelmotte1 () mac com>, nanog list <nanog () nanog org>
Subject: Re: Verizon DSL moving to CGN

> On Apr 7, 2013, at 18:21 , Rajiv Asati (rajiva) <rajiva () 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