IPv4 shutdown in mobile

Owen DeLong owen at delong.com
Tue Dec 22 17:57:27 UTC 2015

Does this mean you are negligent for not supporting IPv6 on my phone on your network?

My phone is perfectly capable of IPv6, yet because it doesn’t support your particular religion
about IPv4 translation, you refuse to support IPv6 on it.

When is T-Mobile going to fix their IPv6 implementation and stop ignoring the #1 market
leading phone manufacturer?


> On Dec 22, 2015, at 04:45 , Ca By <cb.list6 at gmail.com> wrote:
> TL;DR version: the data shows you are negligent if your eyeball content
> (cdn, cloud, ...) does  not support native ipv6.
> With the NAT and IPv4 leasing threads lingering on, i figured it was time
> for an update on how the other half live
> More than 1/3 of North America mobile traffic to the top websites is end to
> end ipv6
> http://www.worldipv6launch.org/2015-wrapup-more-than-13-us-mobile-traffic-is-ipv6-and-still-growing/
> The trend is clearly growing, and as AT&T and Sprint catch up with T-Mobile
> and Verizon, the acceleration to 50% should be easily achieved.
> Furthermore, only one mobile carrier has iPhone dual-stacked today (afaik),
> but Apple has a plan for banning ipv4-only apps and has delivered the
> required features for having ipv6-only iphones in 2016 with these iOS 9.2
> features
> https://developer.apple.com/library/ios/documentation/NetworkingInternetWeb/Conceptual/NetworkingOverview/UnderstandingandPreparingfortheIPv6Transition/UnderstandingandPreparingfortheIPv6Transition.html
> On some mobile providers, ipv6 is already dominant and ipv4 is waning. Once
> iPhones updates to ipv6-only as described above, ipv4 will only be a corner
> case of operations.  This comes with added benefit that ipv6 is faster :
> https://code.facebook.com/posts/1192894270727351/ipv6-it-s-time-to-get-on-board/
> At least in mobile, the change to ipv6 has been quick and the pace is
> increasing -- not just on ipv6 deployment but also on ipv4 shutdown. I know
> many people liken ipv6 to "the boy who cried wolf", so be it, the
> data shows the ipv6 wolf is here.  Or perhapsin hind   sight, we will see
> the right metaphor was "the tortoise and the hare" or "the little engine
> that could"... Or even better IPv4 is John Henry.  It was the best in its
> time, but times have changed.
> CB

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