Hi Cynthia,
I think you missed the point of Daniel's post.
He was interested in connecting to the camera feed via 3rd party software when it is connected into the NVR directly.
That saves the need for a second PoE switch.
As I mentioned above, it would require the NVR to map the ports through its NAT firewall.
You mentioned in August that you were talking to your R&D team about this. Any progress?

Thanks! got it sorted. I posted in my thread.
https://reolink.com/topic/third-party-camera-feed-access-though-nvr/#post-1099634

Got it sorted thanks folks! The following works through the NVR with the 5mp cameras. Not sure if it will work using the 4K ones though.
rtsp://192.168.1.101:554//h264Preview_1_main
rtsp://192.168.1.101:554//h264Preview_2_main
rtsp://192.168.1.101:554//h264Preview_3_main
rtsp://192.168.1.101:554//h264Preview_4_main

While we are on the integration topic. Is there any way to reach the raw streams of cameras that are sitting behind a NVR?

Any luck with this? I posted a new forum post regarding this.
https://reolink.com/topic/third-party-camera-feed-access-though-nvr/

Hello, I would live stream feeds of wired cameras that are attached to and NVR using a third-party tool such as Motion Eye or VLC as described here. Is that possible with Poe devices connected to NVRs? Or do I need to use a separate Poe switch to get network access to each camera?

Thanks!