C＃ - Raw套接字无法捕获传出的UDP

Question

我使用原始套接字来捕获传入和传出的UDP数据包。我的代码是这样的：

public void Start() {
  if (m_Monitor == null) {
    try {
      m_Monitor = new Socket(AddressFamily.InterNetwork, SocketType.Raw, ProtocolType.IP);
      m_Monitor.Bind(new IPEndPoint(IP, 0));
      m_Monitor.IOControl(IOControlCode.ReceiveAll, BitConverter.GetBytes((int)1), BitConverter.GetBytes((int)1));
      m_Monitor.BeginReceive(m_Buffer, 0, m_Buffer.Length, SocketFlags.None, new AsyncCallback(this.OnReceive), null);
    } catch {
      m_Monitor = null;
      throw new SocketException();
    }
  }
}

private void OnReceive(IAsyncResult ar) {
  try {
    int received = m_Monitor.EndReceive(ar);
    try {
      if (m_Monitor != null) {
        byte[] packet = new byte[received];
        Array.Copy(Buffer, 0, packet, 0, received);
        OnNewPacket(new Packet(packet));
      }
    } catch 
    {
    } // invalid packet; ignore

    m_Monitor.BeginReceive(Buffer, 0, Buffer.Length, SocketFlags.None, new AsyncCallback(this.OnReceive), null);

  } catch {
    Stop();
  }
}

传入是可以的但是我看不到任何传出的数据包而Wireshark可以（我使用数据包播放器来重放我的旧.pcap记录）。防火墙已关闭。 Windows 10 1709.

主要基于http://www.mentalis.org/soft/projects/pmon/

有什么建议吗？感谢。