PF Sense 64bit Firewall /Load Balancer
pfSense is a free network firewall distribution, based on the FreeBSD operating system with a custom kernel and including third party free software packages for additional functionality. pfSense provides most of the functionality of common commercial firewalls. Successfully replace big name commercial firewalls, including Check Point, Cisco PIX, Cisco ASA, Juniper, Sonicwall, Netgear, Watchguard, Astaro, and more.