I have this setup:
PiHole with upstream DNS OPNsense
In OPNsense I have Unbound with some local DNS entries (.lan) and it forwards all the unknown requests to QUAD9.
In this way I can use local DNS added automatically to OPNsense by it's DHCP server.
In this way all the requests *.lan are not forwarded to OPNsense.
I've checked around and it seems that I need to add a Conditional forwarding, but I don't see that option in the V6 interface.
How can I solve this problem?
Thanks!