iptables script in only one file
OpenBSD based firewall distribution
shell program to automatically configure freebsd as a firewall
360-FAAR Analyze FW1 Cisco Netscreen Policy Offline Using Config/Logs
Firewall Management Script
flex-fw is a small and fast console frontend to iptables
Firewall/Proxy FreeBSD
Easy to use firewall for linux beginners.
Drop specified IP n seconds remotely, auto-undrop it when timeout.