Hi everybody,
I tried the steps Bjørn suggested and it worked, even if I'm not sure about
some points.
Firstly, I can get the address of api.ipify only if the eth (or another
connection) is still up, not sure if this is expected or you got that IP
from one of the mbim connections.
Secondly, and
Initially I'd like to investigate this topic without considering the
protocol (AT, MBIM, QMI), and only the modem's capabilities, although this
note from the above mentioned discussion is really appealing
MBIM modems can multiplex IP sessions over a single data port.
and as Dan said, QMI