pfctl version: FreeBSD 14.0-RELEASE-p4 modinfo pf | grep version If pf is not loaded, load it temporarily:
The resolution path is straightforward: ensure the userland pfctl binary and the kernel pf module originate from the same operating system release and have been loaded consistently. In most cases, a clean reboot after a system upgrade eliminates the issue. In stubborn cases, verifying binary paths, removing conflicting ports, or manually reloading the kernel module restores functionality. pf configuration incompatible with pf program version
cd /usr/src/sys/modules/pf make clean make make install kldunload pf kldload pf Situation : A FreeBSD 13.1 firewall was upgraded to 13.2 via freebsd-update . The administrator forgot to reboot. When they ran service pf start , they received: pfctl version: FreeBSD 14
This message typically appears when running pfctl (the Packet Filter control program) to load or validate a firewall ruleset. It signals a critical mismatch between the userland utilities (the compiler and control tools) and the in-kernel Packet Filter module. In simpler terms, the tool you are using to talk to the firewall speaks a different language than the firewall kernel module listening for instructions. It signals a critical mismatch between the userland
To view the exact ABI version expected by pfctl :
pfctl -f /etc/pf.conf : ~80% for standard FreeBSD upgrades. Tier 2: Reload Kernel Module Without Reboot If a reboot is impossible (production system), attempt to reload the pf module after ensuring the correct pfctl is in use.