'Make requst to stun server (Coturn)

Im create a coturn server and check it by TrickleICE https://webrtc.github.io/samples/src/content/peerconnection/trickle-ice/ . Its work. Now i want to write simple client. Im connect to server by UDP client:

        udpClient = new UdpClient();
        IPAddress ipAddress = IPAddress.Parse(IpAddress);
        ipEndPoint = new IPEndPoint(ipAddress, Port);
        try
        {
            udpClient.Connect(ipEndPoint);
        }
        catch (Exception e)
        {
            Console.WriteLine(e.ToString());
        }

Then i create header and attribyte byte arrays like it described here: https://datatracker.ietf.org/doc/html/rfc5766

Creating header example:

        byte[] header = new byte[20];
        byte[] messageT = BitConverter.GetBytes((Int16)messageType);
        byte[] messageLength;
        messageLength = BitConverter.GetBytes((Int16)attributeLength);            
        byte[] TransactionId = MyTransactionByteArray
        messageT.CopyTo(header, 0);
        messageLength.CopyTo(header, 2);
        TransactionId.CopyTo(header, 4);

When I send header without any attrubutes by stun protocol (https://datatracker.ietf.org/doc/html/rfc3489#section-11.1) server logs says:

   handle_udp_packet: New UDP endpoint: local addr 0.0.0.0:10000, remote addr "myip":"port" 
   Wrong OLD STUN message received

With attributes(like here: https://datatracker.ietf.org/doc/html/rfc5766#section-16):

 handle_udp_packet: New UDP endpoint: local addr 0.0.0.0:10000, remote
 addr "myip":"port"

And I am not getting any response.

 IPEndPoint ip = null;
 byte []msg = udpClient.Receive(ref ip);

Where did i go wrong?

c++sharpstunturncoturnrfc5766turnserver


Solution 1:[1]

Ok. just use this header from newest stun protocol: https://datatracker.ietf.org/doc/html/rfc5389

Sources

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Source: Stack Overflow

Solution Source
Solution 1 soniko62

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