With Pf Program Version: Pf Configuration Incompatible

If the web GUI is inaccessible, use the console menu to restore a previous configuration. Preventive Measures

The -n flag performs a "no-load" dry run, while -v provides verbose output. If this command returns a specific line number, the "incompatibility" might just be a deprecated keyword in your ruleset. 2. Synchronize Kernel and Userland

If you are on a development system, you may need to recompile pfctl against your current kernel headers:

This guide explores why this error happens and how to fix it to restore your firewall's functionality. Understanding the Version Mismatch The PF firewall operates in two parts:

When you see this error, it means is trying to communicate with a kernel version of PF that it does not recognize or support. This most commonly happens after a partial system update where the operating system's kernel was updated, but the userland tools were not (or vice-versa). Common Causes