title: Accessing BigBlueButton behind a restrictive firewall that prevents outgoing UDP connections
body: <p>We have installed a COURN server referring to the <a href="https://docs.bigbluebutton.org/2.2/setup-turn-server.html#Configure_TURN_" rel="nofollow noreferrer">https://docs.bigbluebutton.org/2.2/setup-turn-server.html#Configure_TURN_</a>. But even with this, we are not able to access the BBB service within the University LAN protected with a restrictive firewall.</p>
  <p>Please find the following diagram to illustrate the environment. Looking for your suggestions to solve this issue. We are banging our heads against this wall for some time now.</p>
  <p><a href="https://i.stack.imgur.com/BmutY.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/BmutY.jpg" alt="enter image description here" /></a></p>