On 25.02.21 18:48, i iordanov wrote:
> The "nested" tunnel does not get established.

That's a generic problem. Usually you want to ensure that encrypted 
packets don't themselves go through the tunnel. This is difficult if not 
impossible on Android unless you rooted your device.

Also, you would need a per-route MTU. Linux can do that, but again you 
don't have the privileges on Android.

-- 
-- Matthias Urlichs