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试图从本地网络中的设备接收UPnP广播。我确实发现了很多类似的问题,并尝试了一些建议,但都没有成功的主题。我确实看到了Wireshark的UDP数据包,所以它们实际上是在我的电脑上收到的。有什么建议么?使用UdpClient收听UPnP广播
using System;
using System.Net;
using System.Net.Sockets;
using System.Text;
public class UDPListener
{
private const int listenPort = 1900;
private static void StartListener()
{
bool done = false;
IPEndPoint localEndPoint = new IPEndPoint(IPAddress.Any, listenPort);
UdpClient listener = new UdpClient();
listener.Client.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
listener.Client.Bind(localEndPoint);
listener.JoinMulticastGroup(IPAddress.Parse("239.255.255.250"));
listener.MulticastLoopback = true;
IPEndPoint groupEP = new IPEndPoint(IPAddress.Any, 0);
try
{
while (!done)
{
Console.WriteLine("Waiting for broadcast");
var bytes = listener.Receive(ref groupEP);
Console.WriteLine("Received broadcast from {0} :\n {1}\n",
groupEP.ToString(),
Encoding.ASCII.GetString(bytes, 0, bytes.Length));
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
finally
{
listener.Close();
}
}
public static int Main()
{
StartListener();
return 0;
}
}
看看这个,也许它会帮助你:http://stackoverflow.com/questions/12794761/upnp-multicast-missing-答案 - 从-M-搜索发现 – Gusman