[ Thanks to Falko Timme for this link. ]
“Firewall Builder is a firewall configuration and
management GUI that supports configuring a wide range of firewalls
from a single application. Supported firewalls include Linux
iptables, BSD pf, Cisco ASA/PIX, Cisco router access lists and many
more. Import of existing iptables configurations was greatly
improved in the recently released Firewall Builder V4.2.“Features like object de-duplication and expanded rules
recognition make it even easier to get started using Firewall
Builder to manage your iptables configurations.”