Not sure I follow....? And I’m no networking guru
When you connect to the NVR from outside it’s subnet, yes, assuming the appropriate port forwarding, you can connect to the NVR. But in that case the NVR won’t pass through and allow you to connect to the 10.1.1.x IP of the camera, and youll get a blank page that never loads.
I found instead use a vpn (remote access) to allow me access to the net the NVR is on. When it sees I’m coming from the same net (as the vpn simulates) as the one the NVR is on, the page will open using the IE icon and allow me to see the camera on the 10.1.1.x subnet
As mentioned, I personally set the NVR itself on a static IP address on the same dhcp net that the router is broadcasting and use vpn into that router when remote.