WAN‑Side Administration Exposure Limits in pfSense
Default Deny on the WAN pfSense’s factory‑default rules end in an implicit deny, and no inbound service is reachable from the WAN until an explicit pass rule, port forward, or UPnP mapping is added. The firewall logs any attempted traffic that hits this default block, but the presence of a log entry does not guarantee that no service is exposed elsewhere. Ad