[android-developers] Multicast and WiFi tethering

Hi,

I got an application that sends and receives UDP messages using a
MulticastSocket. It works fine between two phones when both are
connected to a normal WiFi AP (e.g., my WiFi at home). However, when
either device has WiFi tethering active and the other device is
connected to this network sending Multicast packages doesn't work
anymore. If I set-up a third device which has WiFi tethering enabled
and let the first two devices connect to this network it works as
expected between the two devices (however, the third device with
tethering active cannot receive or send Multicast packages).

My conclusion is that a device that has WiFi tethering enabled cannot
send or receive Multicast packages. Is this an expected behavior or
should I consider it a bug?

Thanks!

// Erik

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