UDP problems...

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Lloyd Dupont - 15 Dec 2003 00:48 GMT

I tery to write a very simple UDP listening server.
the code goes like this:

UdpClient udp = new UdpClient();
IPEndPoint rip = new IPEndPoint(IPAddress.Any, 0);
byte[] msg = udp.Receive(ref rip);

when I run it I have the following exception:
Unhandled Exception: System.Net.Sockets.SocketException: An invalid argument
was supplied
at System.Net.Sockets.Socket.ReceiveFrom(Byte[] buffer, Int32 offset,
Int32 size, SocketFlags socketFlags, EndPoint& remoteEP)
at System.Net.Sockets.UdpClient.Receive(IPEndPoint& remoteEP)

what that could be ?

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Feroze [MSFT] - 18 Dec 2003 00:13 GMT

You need to bind the local endpoint first. You can do it by creating
UdpClient with a port ( new UdpClient(int port))

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> I tery to write a very simple UDP listening server.
> the code goes like this:
[quoted text clipped - 11 lines]
>
> what that could be ?

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Lloyd Dupont - 18 Dec 2003 10:20 GMT

thanks !
I had found it ;-)

> You need to bind the local endpoint first. You can do it by creating
> UdpClient with a port ( new UdpClient(int port))
[quoted text clipped - 15 lines]
> >
> > what that could be ?

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UDP problems...

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