Changing Tunneling Port to other than Port 5525

ok.  this is unsupported and untested, but, try this:  (only on AREDN 3.15.1.0 based nodes)

(If it messes up things on your node, just hold the reset button for 15 secs to get a "fresh installed pre-configuration state" node.)

ON THE SERVER NODE:

1. ssh to your server node
2. edit /etc/config.mesh/firewall
3. locate the config rule with option dest_port 5525
4. change to 5526 (as an example) and save
5. edit /etc/config.mesh/vtun
6. under the config options section at the top, add option port 5526 and save
7. go into the setup page of the node and click SAVE CHANGES
8. go into the Tunnel Server page of the node and click SAVE CHANGES
9. reboot

ON YOUR CLIENT NODE:

1. ssh to your client node
2. edit /etc/config.mesh/vtun
3. under the config options section at the top, add option port 5526 and save
4. go into the setup page of the node and click SAVE CHANGES
5. go into the Tunnel Client page of the node and click SAVE CHANGES
6. reboot

Let me know if that works for you.