static void ConfigureTcpSocket(Socket tcpSocket)
{
    // Don't allow another socket to bind to this port.
    tcpSocket.ExclusiveAddressUse = true;

    // The socket will linger for 10 seconds after Socket.Close is called.
    tcpSocket.LingerState = new LingerOption (true, 10);

    // Disable the Nagle Algorithm for this tcp socket.
    tcpSocket.NoDelay = true;

    // Set the receive buffer size to 8k
    tcpSocket.ReceiveBufferSize = 8192;

    // Set the timeout for synchronous receive methods to 
    // 1 second (1000 milliseconds.)
    tcpSocket.ReceiveTimeout = 1000;

    // Set the send buffer size to 8k.
    tcpSocket.SendBufferSize = 8192;

    // Set the timeout for synchronous send methods
    // to 1 second (1000 milliseconds.) 
    tcpSocket.SendTimeout = 1000;

    // Set the Time To Live (TTL) to 42 router hops.
    tcpSocket.Ttl = 42;

    Console.WriteLine("Tcp Socket configured:");

    Console.WriteLine("  ExclusiveAddressUse {0}", tcpSocket.ExclusiveAddressUse);

    Console.WriteLine("  LingerState {0}, {1}", tcpSocket.LingerState.Enabled, tcpSocket.LingerState.LingerTime);

    Console.WriteLine("  NoDelay {0}", tcpSocket.NoDelay);

    Console.WriteLine("  ReceiveBufferSize {0}", tcpSocket.ReceiveBufferSize);

    Console.WriteLine("  ReceiveTimeout {0}", tcpSocket.ReceiveTimeout);

    Console.WriteLine("  SendBufferSize {0}", tcpSocket.SendBufferSize);

    Console.WriteLine("  SendTimeout {0}", tcpSocket.SendTimeout);

    Console.WriteLine("  Ttl {0}", tcpSocket.Ttl);

    Console.WriteLine("  IsBound {0}", tcpSocket.IsBound);

    Console.WriteLine("");
}

//DontLinger    -129    소켓을 즉시 자동으로 닫는다.
_socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.DontLinger, true);

m_ListenSocket.LingerState = new LingerOption(enable: true, seconds: 0)