Can't receive UDP on device outside of network

Hi, I have an issue with getting UDP out of my network.

My set up is the following:

  • In my network, a server broadcasts UDP to the broadcast UDP IP which is the usual IP address of
  • I have another server in this network on which a remotely managed cloudflared (installed directly using the commands on the cloudflare website) is running.
  • I have an iPhone outside of the network that is connected via the Zero trust app but cannot see any UDP data.

I have enabled UDP support under settings > networks and I have set the protocol to quic.

Is there anything that I am missing on why I cannot see the UDP packages?