“pfSense is a free, open source customized distribution of FreeBSD tailored for use as a firewall and router.” pfSense is a fork of m0n0wall, and uses IPFilter for traffic filtering.
Origin - Home Page: USA - pfSense
Management Interface: Web-based GUI
Price: PfSense is Open Source and free to use and distribute. Commercial support for pfSense is provided by BSD Perimeter and Centipede Networks.
Key Features: pfSense provides the full features of pf: CARP (Common Address Redundancy Protocol) for hardware failover support; pfsync to maintain connections on failover; OS fingerprinting via p0f; outbound and inbound load balancing; captive portal; real time traffic monitor; RADIUS and redundant RADIUS server support.
The full list of features is available here
Comments: The primary focus of pfSense is for use on PCs, but an installer for embedded devices is also available.
Download/Buy: The latest stable version is pfSense-1.2. pfSense can be downloaded as an embedded image or as a live CD iso image. See the list of mirrors for downloads.
