Multi lan configuration protector

I am testing scenario where is several LANs. I was configured bridge port on 192.168.1.2/24 and port four 192.168.20.1/24 with static route to 192.168.20.1
I would like to traffic for 192.168.20.0/24 also be filtered by defined rules and IPS/IDS.. is it possible? because I need several other lans to be filtered but they are on separate networks who can communicate on main router in front of protector?

IDS/IPS filter works on the bridge (eth0-eth1). To do the filtering on
other LANs, it's necessary to install a router in the LAN connected to
eth1.