System version: OPNsense 21.1.5-amd64
I have a simple port forward defied with http port on wan side redirected to local server.
When outbound NAT is set to Automatic or Hybrid the port forwarding works fine.
When I manually configure outbound NAT as shown on the picture, port forwarding also works fine.
However, when I change outbound NAT source to ANY (instead of defined RFC1918 subnets), port forwarding stops working! Why is that?
Thank you.