ChangeIP.Source.KnowMacAddress.FindMacAddress C# (CSharp) Method

        public void FindMacAddress()
        {
            NetworkInterface[] nics = NetworkInterface.GetAllNetworkInterfaces();
            macAddress = nics[0].GetPhysicalAddress().ToString();
        }

 private void ReadMac()
 {
     KnowMacAddress findMAC = new KnowMacAddress();
     findMAC.FindMacAddress();
     this.macAddress = findMAC.GetMacAddress();
     ChangeSettings();
 }