We are experimenting with BSD networking services, We decided that we were going to try and utilize the OpenBSD Packet Filter firewall, we want to know how to apply ip filtering. I come here asking this because we haven't found anything through Google search, The FreeBSD Handbook, Or through the documentation found on the OpenBSD site. It's not in any literature pertaining to OpenBSD PF either (such as The Book of PF from no starch press).