Listen to multicast address range

  • Hello,

    I am writing an UDP client where I have to listen to the multicast address range -

    Using the method "joinMulticastGroup" for each individual address takes very long:
    For example: On Mac OS X it took several seconds, on Windows 7 it took more than a minute!

    I tried it with Qt 4.8.6 and Qt 5.3.2 - no difference.

    Is there a more efficient way to join a multicast address range?

    Thanks for your help!

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