Hello friends

I have a case where I am not very sure about configuring.
I have 5 computing laboratories of 50 units in each laboratory is assigned by a VLAN or interface and consume high traffic.

I share my network topology so you can help me. 

You can see that after my firewall there is a Layer 2 Managed Switch and there are a few computers connected with the 192.168.1.1/24 segment, then I have 2 Omada networks with Tp-Link, one is for the administrative side and the other for laboratories.

Within network A I have different Interfaces just as in network B I have more interfaces or vlans created.
I have the OC300 controller and the ER7206 V1 router on network A and B. I can see the bandwidth consumption of the computers in the Omada reports, but I cannot see what pages or applications they are accessing and how much bandwidth they are using. used for each website or application.

And what I need is to see in my firewall, right now my firewall has 1 network segment 192.168.1.1/24 and the VLANs or interfaces created in omada are not yet configured.
I want to know how I can perform routing so that my firewall can see everything that happens within my networks A and B. After this procedure I am going to configure the firewall to generate my specific reports.

I will be very grateful for your support.

Greetings.