push apps failing in Android until you disable IPv6

[Tim Chown]

> On 9 May 2016, at 15:05, JORDI PALET MARTINEZ <jordi.palet at consulintel.es> wrote:
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> Because if the ISP doesn’t offer IPv6 service, it can’t (or should not !) be IPv6, right ?

It’s not unheard of for an ISP to update customer firmware for v6 support in advance of deploying connectivity and addressing, with the result that the CPE offers ULAs internally even though there's no IPv6 provisioning in place, and 3484-style devices then having issues.  Would be interesting as an aside to know the status of 3484 vs 6724 on various OSes, as well as those like OSX that appear to do their own thing.

Tim

> 
> Saludos,
> Jordi
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> -----Mensaje original-----
> De: <ipv6-ops-bounces+jordi.palet=consulintel.es at lists.cluenet.de> en nombre de jm33 <jamesm33 at gmail.com>
> Responder a: <jamesm33 at gmail.com>
> Fecha: lunes, 9 de mayo de 2016, 16:01
> Para: Jordi Palet Martinez <jordi.palet at consulintel.es>
> CC: IPv6 Ops list <ipv6-ops at lists.cluenet.de>, <lorenzo at google.com>
> Asunto: Re: push apps failing in Android until you disable IPv6
> 
>> How do you know that the non-received notifications are IPv4 packets?
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>> On Mon, May 9, 2016 at 4:52 AM, JORDI PALET MARTINEZ <jordi.palet at consulintel.es> wrote:
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>> 3) Android fails to receive IPv4 push from whatsapp, Facebook, others, when screen is off.
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>> 4) Disabling IPv6 in the router the problem disappears.
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