I currently have a UniFI Firewall in place and I plan to get a OPNsense firewall mainly for a VPN.
Setup: Modem - OPNsense Firewall - UniFI Firewall - VLANS (Rules made by UniFi)
Are there any advantages of running a setup with 2 firewalls or should I move everything to the new (more powerful) OPNsense firewall?
Thanks!
Save yourself the headaches and sparing the additional Single Point Failure and just combine onto the more powerful hardware.
The only time I would multi firewall setup if you needed to segregate for "sub" networks. Say to make X rules for workstations but Y rules for servers.