Read MAC Address from network adapter in .NET

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Since .Net 2.0 there’s been a NetworkInterface class in the System.Net.NetworkInformation namespace that will give you this information. Try this:

        foreach (NetworkInterface nic in NetworkInterface.GetAllNetworkInterfaces())
        {
            if (nic.OperationalStatus == OperationalStatus.Up)
            {
                Console.WriteLine(nic.GetPhysicalAddress().ToString());
                break;
            }
        }

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