BackgroundWorker  bwListener = new BackgroundWorker();
            bwListener.DoWork += new DoWorkEventHandler(Listener);
            bwListener.RunWorkerAsync();

        private void Listener(object sender, DoWorkEventArgs e)
        {
            int recv;
            byte[] data = new byte[1024];
            IPAddress ip = IPAddress.Parse("10.68.26.224");
            IPEndPoint ipep = new IPEndPoint(ip, 12000);
            Socket SrvSock = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
            SrvSock.Bind(ipep);
            IPEndPoint sender1 = new IPEndPoint(ip, 12000);
            EndPoint Remote = (EndPoint)(sender1);
            while (true)
            {
                data = new byte[1024];
                recv = SrvSock.ReceiveFrom(data, ref Remote);
                string str = Encoding.Unicode.GetString(data, 0, recv);

                Console.WriteLine("Получено: " + str);
            }
        }