Qt/C++ : How to get remote PC (communication peer) MAC address?

Question

I am using Qt5 on Windows 7.
In my application (TCP server), I am currently using some methods from QTcpSocket class:
- QAbstractSocket::peerAddress(

Answer 1

If you can run code on remote peer, MAC address can be reported with hardwareAddress() call of the interface.

For example , to report MAC address of WiFi interface, and all IPv4 addresses on that intrface:

for(const QNetworkInterface& iface: QNetworkInterface::allInterfaces()){
    if (iface.type() == QNetworkInterface::Wifi){
        qDebug() << "MAC:" << iface.hardwareAddress();
        for (const QHostAddress& addr : iface.allAddresses()){
            if (addr.protocol() == QAbstractSocket::IPv4Protocol)
                qDebug() << "IPv4 Addr: " << addr;
        }
    }
}