Pf Configuration Incompatible With Pf Program Version ⇒

The actual engine that inspects and filters packets at the system's core.

A system update was interrupted, or only the kernel was updated without updating the rest of the base system. pf configuration incompatible with pf program version

The error message typically occurs in UNIX-like operating systems (such as FreeBSD or OpenBSD) and networking appliances like pfSense . It signals a mismatch between the kernel-level Packet Filter (PF) engine and the userland utility ( pfctl ) used to manage it. The actual engine that inspects and filters packets

In some cases, third-party software (like security plugins or monitoring tools) may have replaced system files with incompatible versions. Troubleshooting and Fixes 1. Perform a Configuration "Dry Run" pf configuration incompatible with pf program version