Various enhancements were made to the module:
This new facility allows you to map a given rule by interface,protocol,source,source port, destination, destination port. You can also map by source and destination sub-net. By specifying two mappings, Linuxconf will create all needed chains and generate the dispatch rules.
This new feature is really useful for large firewall, and especially for users of the userfirewall module (which maps users and groups to firewall rules).