One last command that might be useful allows you to flush all the IP accounting rules that you have configured. This is most useful when you want to radically alter your rule set without rebooting the host.
The iptables command supports the -F argument, which flushes all the rules of the type you specify:
# iptables -F
This flushes all of your configured rules (not just your accounting rules), removing them all and saving you having to remove each of them individually.