关于C#的UDP编程。

[wsmall1]

我知道一个网关机的IP以及发送数据报的端口，请问我还需要那些条件才能编写客户端来接收他们发送出来的数据。他们发送数据的方式是广播方式的。

我下面写了一段程序，但是运行的时候会死掉。我分步检查，发现运行到
Byte[] receiveBytes = receivingUdpClient.Receive(ref RemoteIpEndPoint);
这句的时候，程序就死了，请高手指点。。

我的程序图如下：
UdpClient receivingUdpClient = new UdpClient();
IPEndPoint RemoteIpEndPoint = new IPEndPoint(IPAddress.Parse("192.17.101.8"), 2000);
try
{
Byte[] receiveBytes = receivingUdpClient.Receive(ref RemoteIpEndPoint);

string returnData = Encoding.ASCII.GetString(receiveBytes);

MessageBox.Show("This is the message you received " +
returnData.ToString());
MessageBox.Show("This message was sent from " +
RemoteIpEndPoint.Address.ToString() +
" on their port number " +
RemoteIpEndPoint.Port.ToString());
}
catch ( Exception ex )
{
MessageBox.Show(ex.Message.ToString());
}

[_jfeng]

学习 ，，，up

[wsmall1]

有人知道么？

[zxilu]

不是死掉，是等待数据包吧。

[wanglei9802]

基本上没有什么问题

[lucbesson]

UdpClient receivingUdpClient = new UdpClient();
没有指定端口
----------------------

IPEndPoint RemoteIpEndPoint ;
RemoteIpEndPoint=null ；

Byte[] receiveBytes = receivingUdpClient.Receive(ref RemoteIpEndPoint);

[lucbesson]

建议楼主使用线程 ！

[cometsky]

你忘记了最重要的一句：
UdpClient.JoinMulticastGroup(GroupAddress);


private static readonly IPAddress GroupAddress = IPAddress.Parse("224.168.100.2");
private const int GroupPort = 11000;
listener.JoinMulticastGroup(GroupAddress);
listener.Connect(groupEP);
...
while (!done)
{
Console.WriteLine("Waiting for broadcast");
byte[] bytes = listener.Receive( ref groupEP);

Console.WriteLine("Received broadcast from {0} :\n {1}\n",
groupEP.ToString(),
Encoding.ASCII.GetString(bytes,0,bytes.Length));
}