Problem with UDP broadcast

[Anonymous]

Hey ,

Im trying to do a broadcast using simple plain UDP. My server is started on localmachine with standard class C ip address (i.e. 192.168.1.X)

I’m getting :

An unhandled exception of type 'System.Net.Sockets.SocketException' occurred in System.dll

Additional information: The requested address is not valid in its context

When I try to execute the folowing code :

            SendReceiveOptions optionsToUseForUDPOutput = new SendReceiveOptions<NullSerializer>();

            

            using (Packet sendPacket = new Packet("Unmanaged", Encoding.ASCII.GetBytes("pwd"), optionsToUseForUDPOutput))
            {
                UDPConnection.SendObject<byte[]>(sendPacket, new IPEndPoint(IPAddress.Broadcast, 48899), optionsToUseForUDPOutput, ApplicationLayerProtocolStatus.Disabled);

            }

[Anonymous]

I’m not entirely sure why you are getting the error, it should work. Could you please try using the broadcast address “0.0.0.0” and see if it works or you get the same/different error?

Kind regards,
Marc

[Anonymous]

Hey ,

When I have changed the address this is what I get (I’m using 3.0.3)

`
An unhandled exception of type ‘NetworkCommsDotNet.ConnectionSetupException’ occurred in NetworkCommsDotNetComplete.dll

Additional information: Attempting to determine the best local endPoint to connect to 0.0.0.0:48899 resulted in a socket exception.

• This reply was modified 10 years, 3 months ago by . Reason: version added

[Anonymous]

It sounds like one of your network adaptors is causing a problem. I would recommend disabling all adaptors, enable one at a time and then see if you still get the error. If this fixes the problem you can restrict NetworkComms.Net to only use specific adaptors using https://networkcomms.net/api/html/P_NetworkCommsDotNet_Tools_HostInfo_RestrictLocalAdaptorNames.htm

Let me know how it goes.

[Anonymous]

Hey ,

I narrowed down the problem. Within my default interface problem (as that was only one I left enabled) I discovered that Virtual box is giving me this error.

While I unchecked it – the problem dissapeared. Now my question is : “Have you guys had problems with VirtualBox driver on Windows machines ?”

Thanks
Rafal

[Anonymous]

Heya Rafal,

Thanks for the update. Yes we have had issues with some virtual adaptors in the past. We have not been able to think of a solution that will work for everyone so far, if you have any suggestions, please let us know.

Regards,
Marc

[Author]

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