[MT-AU Public] Universal Firewall

Hi Guys, I'm trying to build a starter universal firewall so people can load it on their routers and then add onto it as needed, or even as just to use as an example. I uploaded it to pastebin as 50 lines is a little too much to slap into an email. http://pastebin.com/Fp05Cwng Let me know of any suggestions you have. Thanks, Josh