The Cisco PIX 501 Firewall delivers enterprise-class security for small offices and teleworkers in a reliable, Plug and Play security appliance. Ideal for securing high-speed "always on" broadband environments, the Cisco PIX 501 Firewall, which is part of the market-leading Cisco PIX Firewall Series, provides robust security capabilities, small office networking features and powerful remote management capabilities in a compact, all-in-one solution.??The Cisco PIX 501 Firewall is a purpose-built security appliance that provides rich security services including stateful inspection firewalling, virtual private networking (VPN) and intrusion protection in a single device. Using the Cisco state-of-the-art Adaptive Security Algorithm (ASA) and PIX operating system, the PIX 501 ensures that all the users behind it are safe and secure from threats lurking on the Internet.