IP Filter 3.3.8 releasedIP Filter 3.3.8 has just been released. IP Filter is a packet filter which can be used to implement a firewall. I like it. The rule groups it uses are quite powerful. It runs under a wide range of operating systems and can cope with large volumes of traffic.
You can install it using the instructions found at Installing IP Filter 3.3.4. I just upgraded my box using the instructions found there. Should work just fine for you.