To integrate an OPNsense router with your existing Fios setup, connect the OPNsense router directly to the ONT, then link the G3100 to it. Disable DHCP on the G3100 to use it as an access point. Your E3200 should still function as intended. You’re right about VLAN limitations on Fios gear, so plan your network layout accordingly to ensure seamless operation without VLAN support.
To integrate an OPNsense router with your existing Fios setup, connect the OPNsense router directly to the ONT, then link the G3100 to it. Disable DHCP on the G3100 to use it as an access point. Your E3200 should still function as intended. You’re right about VLAN limitations on Fios gear, so plan your network layout accordingly to ensure seamless operation without VLAN support.