How to set up a route to access cameras via NVR?

Question

network hardware

Good day to all.
Looking for network gurus to help.
There is an ASUS RT AC66U router - locale 192.168.1.1
, there is also an NVR DAHUA 8 POE ports 192.168.108 and an incomprehensible switch tab, where 10.1.1.1 is registered, cameras with default IP 10.1.1.xx are included in the NVR.
He sees them and lets me access them through his address, only port 192.168.1.108:10080 for example
So there are no injectors, I can only connect cameras via NVR.
Interested in the ability to register a route on the router or else how to directly see the network 10.1.1.xx
On one camera, I changed the address from 10.1.1.67 to 192.168.1.21 (by entering through the NVR 192.168.1.108:10082), now the NVR sees the picture from it but go in does not give. It doesn't show up locally either.

Answer 1

On Asus router:
Target: 10.1.1.0
Mask: 255.255.255.0
Gateway: 192.168.108