STUN binding request with username attribute

[gl4nce]

Would it be possible to send the username attribute in STUN binding requests? Obviously some STUN servers expect this attribute on binding requests.

Does this make sense? I'm not such deep into the STUN protocol but looks like it could be a good addition according to RFC 5389?

I'm currently playing with Jitsi Videobridge (SFU). Wireshark shows that this attribut is set on each initial binding request. Unfortunately, there no corresponding option in stunner for that.

[firefart]

Do you have an example of the replies of the server when running with the -debug flag?

[gl4nce]

The server ignores such requests completely. There is no reply. But I don't know it's because of the missing username attribute or anything else.

[firefart]

Just run with the -debug flag. If a requested property is missing, there must be an error code in the response

[gl4nce]

As I said. The server ignores the request. There are no replies. I guess there is some sort of pre-auth in the connection to the Jitsi Videobridge. And yes, it's all the same destination port (443).

I made two Wireshark screenshot for comparison.

Capture of real webrtc connection

info command with stunner