I found this interesting article here where I learned that it is possible to automatically generate ACLs rules for many common firewalls including (but not limited to). Linux IPtables, Windows Firewall, Cisco IOS, packet filter (I don’t know if this extends to pfSense but I would imagine so since the PF package is what pfSense was originally based on), and more. This can be very useful weather you are trying to allow something or block it. Wireshark has an option for both.
Think about it! You can run some traffic though while capturing and then easily create your firewall rules from there. While I do highly recommend that you know how to configure rules in whatever firewall(s) you are using. I would HIGHLY recommend that you check out. As it can be extremity useful for either new users and pros.