push apps failing in Android until you disable IPv6

[Lorenzo Colitti]

On Fri, May 13, 2016 at 3:27 PM, Mikael Abrahamsson <swmike at swm.pp.se>
wrote:

> My guess is that any device which sees this, will install default IPv6
> route but will only have link local addresses on the interface, thus there
> is no source address to use to send packets to the world outside the link.
>

You're forgetting that the device might have an an IPv6 address on the
cellular interface, and an OS that uses the weak host model like Linux is
perfectly happy to use the cellular interface's IPv6 address to send
packets on the wifi interface.
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