May 26, 2018
ipfmeta is used to simplify the maintenance of your IPfilter ruleset. It does this through the use of ‘objects’. A matching object gets replaced by its values at runtime. This is similar to what a macro processor like m4 does.
ipfmeta is specifically geared towards IPfilter. It is line oriented if an object has multiple values, the line with the object is duplicated and substituted for each value. It is also recursive an object may have another object as a value.