wireguard android don't prefer IPV6 endpoint

[Jérémy Prego]

I confirm the same problem in wifi

Le 27/12/2020 à 07:02, Jérémy Prego a écrit :
> hello,
>
> I've always encountered a bug with android wireguard when using an ipv4
> / ipv6 endpoint.
>
> I tested with two phones:
> Huawei p10 lite android 8.0 emui 8
> Xiaomi poco m3 android 10.0 miui 12
>
> When i'm in LTE (not yet been able to test in wifi), wireguard connects
> to the endpoint in ipv4 and not in ipv6, and i don't understand why it
> is doing that.
> However, chrome, for example, does use ipv6 by default and not ipv4.
>
> My phone does recover an ipv6 in 2a01: cb1a ........ / 64 and not an
> ipv6 type fc00 / fd00 / fe80 ...
> I also specify that if I only have an AAAA record, the tunnel works fine
> in ipv6. but suddenly, I can no longer connect to wifi which only have ipv4.
>
> I would like wireguard to favor ipv6 when it is available, and otherwise
> switch to ipv4.
>
> Is it possible ?
>
> Thanks,
>
> Jerem