Request to change IPv4 preference - mobile apps

Nico Schottelius nico.schottelius at ungleich.ch
Mon May 6 22:57:14 CEST 2019


Hey Will,

I think the "proper" way to handle this is by using the happy eyeballs
algorithm: resolve AAAA and A, connect to both, use whatever answers
first.

Best,

Nico

Will Tisdale <will at z3n.uk> writes:

> Hello,
>
> I sent a message to the list about weirdness with IPv4 being preferred
> over IPv6 in the iOS app a few days ago, but it didn't get there for
> whatever reason.
>
> I've since done a bit of digging through the code and found that
> preferring IPv4 is intentional, and it's also implemented that way on
> the Android app too.
>
> It seems a shame to hobble native IPv6 support for everyone just to
> work around some peoples misconfigured setups.
>
> My suggestion/request would be to change the apps to prefer IPv6 as
> default, but add a switch to the apps to disable IPv6 or prefer IPv4
> for those with broken setups.
>
> Does that seem reasonable?
>
>
> Cheers,
>
>
> -Will
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