broadcast ip interface on windows xp

[pawer]

Why Chat example doesn't work on Windows XP? In Linux or W2K seems to work.

The problem is the broadcast ip from interface:

foreach (QNetworkInterface interface, QNetworkInterface::allInterfaces()) {
        foreach (QNetworkAddressEntry entry, interface.addressEntries()) {
			  qDebug() << "IP: " << entry.ip().toString() <<
					  "\nNetmask " << entry.netmask().toString() <<
					  "\nBroadcast " << entry.broadcast().toString();
        }
}

foreach (QNetworkInterface interface, QNetworkInterface::allInterfaces()) {
        foreach (QNetworkAddressEntry entry, interface.addressEntries()) {
			  qDebug() << "IP: " << entry.ip().toString() <<
					  "\nNetmask " << entry.netmask().toString() <<
					  "\nBroadcast " << entry.broadcast().toString();
        }
}

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In Windows XP entry.broadcast() is Null in LAN ifaces also.

Thx. Selu.