Basic IPF Configuration
Kyle Amon,  Page 4 
Files

/etc/ipf.rules
/etc/ipnat.rules

Commands

ipf, ipnat, ipmon, ipfstat, ipftest

Handy Aliases

alias ripf='ipf -Fa ; ipf -v -f /etc/ipf.rules'
alias ripnat='ipnat -CF ; ipnat -v -f /etc/ipnat.rules'
alias rip='ripf ; ripnat'