networking – How do you give two routers access to a network device? (Network drawing included)

Network Drawing

I want “House LAN” and “Computer A” both to have access to the surveillance camera. How is this done?

I was considering creating two VLANs on “Dual WAN Router A”:

VLAN_A: Port 3 and Port 4

VLAN_B: Port 5 and Port 4

This way, the “House LAN” and “Computer A” will remain isolated from each other, which is also a requirement.

Naturally, I will also create a static route on “Dual WAN Router A” to route traffic from “Computer A” onto subnet 192.168.1.x, where the surveillance camera resides.

Does my approach make sense? Will this work?