How do I configure a proper multigateway?

[BrianFurious]

Hello everyone, I'm new to opnsense, it's my first time playing with a more "complex" firewall.

In this moment I'm running 2 internet connections with 2 different routers.

First line: Fritzbox 3490 handling DHCP, Firewall rules, DDNS, WiFi AP.

Second line: ISP router, static public IP, DHCP.



They are both in separate networks: 192.168.0.0/24 and 192.168.1.0/24

Right now I have an unraid server with OPNsense installed as VM and 4 port NIC directly passthrough to the firewall.

Since I don't have a separate AP to let OPNsense handling WiFi clients I'd like to "bridge" the two firewall/routers but I don't know the best way to do.

I'd like to assign DDNS, public IP (PPPOE), port forwarding from OPNsense but how do I manage wifi traffic? I also have a few dockers having the same IP, 192.168.1.14 and I want some of them to get on internet through second line with the public static IP with a failover in case that line goes down to be handled by the primary line keeping the same port forwading rules. What is the most efficient way to do?