[erlang-questions] DTLS server example?

Vans S vans_163@REDACTED
Tue Jun 13 11:20:42 CEST 2017

Slight problem now.

Testing on localhost everything works fine.  Now I am testing on a remote server with large latency and I keep getting this error on the client,
SSL: {connection, flight_retransmission_timeout} Fatal error: unexpected message.

I tested using pydtls as the client and this error does not happen. 

Also the server shows a "unexpected message" tls_alert. Does not happen with pydtls as the client. 

    On Tuesday, June 13, 2017 3:51 AM, Vans S <vans_163@REDACTED> wrote:

 Thank you for the encouragement, I got it working, the key was to call transport_accept then ssl_accept, I was calling one or the other. 

    On Monday, June 12, 2017 8:34 AM, Ingela Andin <ingela@REDACTED> wrote:


Only difference to TLS is that you need to provide the option {protocol, dtls}. 

Regards Ingela  

On Mon, Jun 12, 2017 at 9:45 AM, Andreas Schultz <aschultz@REDACTED> wrote:

Hi Vans,
I haven't played with it yet, but with the DTLS stack in R20 creating a DTLS server should be mostly identical to a TLS server.
For an example on how this works with my old, patched version, you could check out the CAPWAP [1] project.
[1]: https://github.com/ travelping/capwap
----- On Jun 12, 2017, at 9:34 AM, Vans S <vans_163@REDACTED> wrote:

I am trying to implement a DTLS server but having trouble.

The DTLS client works great, used RoadRunners patches and example.

For the server side I had success to what I think was accepting a peer using the undocumented 'dtls' module directly, but I cannot send to the socket.

Does anyone have a clue how to create a DTLS server in erlang?
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