Created attachment 219564 [details]
based on a discussion/thread on PostgreSQL's community workspace on Slack (https://postgresteam.slack.com/archives/C0FS3UTAP/p1603440839348800), we were able to identify and come with a patch which solves this issue.
>> pg_hba_file_rules reports NULL address and netmask values incorrectly on
>> FreeBSD 11 for tested postgres versions 10-13 (at least).
please follow the official pgsql report on https://www.postgresql.org/message-id/flat/16695-a665558e2f630be7%40postgresql.org
Reported by: Peter Vandivier <petervandivier % gmail.com>
Patched by: Tom Lane <tgl % sss.pgh.pa.us>
This looks like it's already fixed in the upcoming (tomorrow) point releases? So no point in adding a patch for it.
thanks! I am just going to close this one. appreciated :)