System.Net.Sockets.SocketPal.SetReceivingDualModeIPv4PacketInformation C# (CSharp) Method

        public static void SetReceivingDualModeIPv4PacketInformation(Socket socket)
        {
            // NOTE: some platforms (e.g. OS X) do not support receiving IPv4 packet information for packets received
            //       on dual-mode sockets. On these platforms, this call is a no-op.
            if (SupportsDualModeIPv4PacketInfo)
            {
                socket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.PacketInformation, true);
            }
        }