services.coturn.relay-ips

Relay address (the local IP address that will be used to relay the packets to the peer). Multiple relay addresses may be used. The same IP(s) can be used as both listening IP(s) and relay IP(s).

If no relay IP(s) specified, then the turnserver will apply the default policy: it will decide itself which relay addresses to be used, and it will always be using the client socket IP address as the relay IP address of the TURN session (if the requested relay address family is the same as the family of the client socket).