After seeing several mentions of using nmap on this forum, I installed nmap on my pi3 and used it to scan a couple IPCs I have installed so far and see the results below. Anything that stands out with their currently open ports? I've disabled upnp on all cameras and in router along with setting up VPN for remote viewing. I would've guessed that all Dahua and Amcrest would have same ports open but the 5231R-ZE had 3800 pwgpsi and 49152 unknown missing compared to 4431C-A-V2. Also, what is the port 22 filtered ssh for the Annke/hik cube as I didn't see any options to even disable ssh in their web ui.
Dahua HDW4431C-A-V2
PORT STATE SERVICE
80/tcp open http
554/tcp open rtsp
3800/tcp open pwgpsi
5000/tcp open upnp
49152/tcp open unknown
Dahua HDW5231R-ZE
PORT STATE SERVICE
80/tcp open http
554/tcp open rtsp
5000/tcp open upnp
Annke cube(flashed to Hikvision FW)
PORT STATE SERVICE
22/tcp filtered ssh
80/tcp open http
554/tcp open rtsp
8000/tcp open http-alt
Amcrest 1080p
PORT STATE SERVICE
80/tcp open http
554/tcp open rtsp
3800/tcp open pwgpsi
5000/tcp open upnp
49152/tcp open unknown
Dahua HDW4431C-A-V2
PORT STATE SERVICE
80/tcp open http
554/tcp open rtsp
3800/tcp open pwgpsi
5000/tcp open upnp
49152/tcp open unknown
Dahua HDW5231R-ZE
PORT STATE SERVICE
80/tcp open http
554/tcp open rtsp
5000/tcp open upnp
Annke cube(flashed to Hikvision FW)
PORT STATE SERVICE
22/tcp filtered ssh
80/tcp open http
554/tcp open rtsp
8000/tcp open http-alt
Amcrest 1080p
PORT STATE SERVICE
80/tcp open http
554/tcp open rtsp
3800/tcp open pwgpsi
5000/tcp open upnp
49152/tcp open unknown