Untangle

Untangle delivers an integrated family of applications that simplify and consolidate the network and security products that businesses need at the network gateway. Untangle lets you control network activities that reduce productivity such as spam and inappropriate web surfing, enable anytime anywhere access for remote employees, and protect your computers and data from outside threats such as viruses, spyware, botnets, and phishing.
 
Untangle offers:
Productivity (Spam Blocker, WebFilter, Protocol Control)
Security (Spyware Blocker, Phish Blocker, Virus Blocker, Intrusion Prevention, Attack Blocker, Firewall)
Remote Access (OpenVPN, Remote Access Portal)
Monitoring (Untangle Reports)
Networking (Router, Configuration Backup)
 
For complete features, you may download the following:
Untangle Network Security datasheet
Untangle Network Security Powerpoint Slides