pfSense

I'd be grateful if you could please consider adding the ability to specify custom pf rules from the GUI.

I'm envisaging a plain text field that the user can enter custom pf rules, which would then be appended by filter.inc on a filter reload.

There are occasions where custom pf rules are useful, in particular the "dup to" rule for selectively mirroring traffic.

See for example: https://forum.netgate.com/topic/163466/how-to-add-pf-dup-to-rules

At the moment it can be done by manually editing tmp/rules.debug or by editing filter.inc to add the custom rules (see https://docs.netgate.com/pfsense/en/latest/firewall/pf-ruleset.htm).

However, in the first case, the custom rules don't persist after a filter reload, and in the second case they won't persist after upgrading pfSense. It would therefore be helpful to have the feature in the GUI.

Thank you.