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首先是關於我的英語。我的問題是我在印刷機上有電子線路。這個電路發送數據到我的服務器沒有問題。收到數據後,我需要發送命令給電路。在LAN中,它的工作就像一個魅力。但是,在外線電路沒有收到我的命令莫名其妙。任何想法如何我可以發送到udp嘲笑機器後面的NAT?我的代碼是低調的,有任何幫助。Udp數據包在機器後面nat
private void ReceiveMessage()
{
while (true)
{
try
{
var remoteIpEndPoint = new IPEndPoint(IPAddress.Any, 0);
var content = _udpClient.Receive(ref remoteIpEndPoint);
if (content.Length > 0)
{
var message = Encoding.ASCII.GetString(content);
var smsg = message.Split('|');
var pin1 = int.Parse(smsg[13]);
var pin2 = int.Parse(smsg[14]);
var isChanged = CheckChanges(smsg[1]);
if (isChanged == 1)
{
**var recvpt = new IPEndPoint(remoteIpEndPoint.Address, remoteIpEndPoint.Port);
var client = new UdpClient();
var cmd1 = "CP1S" + _pin1Time + "F";
var cmd2 = "CP2S" + _pin2Time + "F";
var senddata1 = Encoding.UTF8.GetBytes(cmd1);
var senddata2 = Encoding.UTF8.GetBytes(cmd2);
client.Send(senddata1, senddata1.Length, recvpt);
client.Send(senddata2, senddata2.Length, recvpt);
client.Close();**
// UpdateChanges(smsg[1]);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToStrin<wbr ></wbr>g());
}
}
}
}