How to force DTLS

[Nadeen Nilanka]

We want to force DTLS over turn server.

And in the app(angular) we turns:domain:5349?transport=udp //is this way possible to force DTLS?

But i cannot see the DTLS handshake in wireshark instead it uses TLS and connection is very bad. When app not using TURN server i can see DTLS being used. So question is when connection go through TURN server can we force every-time to use DTLS?

our configs.

no-udp
no-tcp
tls-listening-port=5349
listening-ip=public-ip-of-turn-server
relay-ip=public-ip-of-turn-server
min-port=32355
max-port=65535
verbose
fingerprint
lt-cred-mech
user=user:password
realm=our-domain-name
cert=/etc/ssl/key.pem
pkey=/etc/ssl/key.pem
cipher-list="ALL"
log-file=/var/tmp/turn.log
simple-log
no-tlsv1
no-tlsv1_1

[Philipp Hancke]

STUN/TURN over DTLS isn't implemented in WebRTC, see https://bugs.chromium.org/p/webrtc/issues/detail?id=3644 for the past discussion.

It would be somewhat surprising if the ?transport=udp would be ignored though and went for TURN/TLS.

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[Ntwobike]

Thanks for the Reference Philipp. Thats quite an unfortunate spent 2 days thought its a configuration issue in coturn. 

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