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Re: Verizon DSL moving to CGN
From: "Rajiv Asati (rajiva)" <rajiva () cisco com>
Date: Mon, 8 Apr 2013 18:54:23 +0000


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




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