Ok, let me try step by step, just in case.
Set ONVIF off on the cam.
I could not find the Port number for the cam using the advanced port Scanner, however using Fing I got two Port numbers for the cam 554 and 8080.
Also, If i put the url
into Firefox and get a box
I guess that it makes sense to go via a proxy server. The camera is constantly sending video to the server, albeit not captured until motion is detected. The fact that PTZ is controlled via the proxy may be the cheapest way to manage, that way there is just a single stream of data going back and forth. I am not happy using the cam in ONVIF off as that means anyone can view the data. I do not know how strong the encrytion code is or if it can be cracked.
Have you tried using the cam Mode 2, the cam acts as a wifi hotspot, little security unless you have the version of the cam that has an ethernet connection.
Yes is should be possible to emulate the proxy server and use a firewall to block connection to the 3rd party proxy - I suspect with ONVIF off - due to encrypted data.
If you find something else that works readily then please let me know. I have a different cam which I cannot get anywhere with, and had an old Sricam which worked well, (it didnt have cloud support) but could set up to email a video clip. There is also a free PC client which monitors the cams well.
Open