pptp-proxy is a proxy for the Point-to-Point Tunneling Procotol. It handles multiple tunnels on a nat-box driven by pf. pptp-proxy relies on Niels Provos's libevent.
A secure, secondary LCD-based interface to pf.
A port of MandrakeSoft's "Network Appliance Administration Tool" to OpenBSD.
this firewall is a union of lot of tool distributed free for the OS NetBSD, OpenBSD and FreeBSD, use web services with xml-rpc and soap, and a desktop too based on Gtk