The increasing numbers of small and medium-sized businesses into the Internet marketplace has expanded the demands of the firewall market. More organizations today demand powerful firewall features affordably priced for global VPN implementations, for distribution to regional branches, or for small to medium-sized businesses looking for security on a budget. The PIX 515 is designed to answer this need.The PIX 515-UR (with unrestricted software license) provides all the functionality of the PIX 515, as well as fail-over functionality, and up to six 10/100 Ethernet ports. These additional ports allow for more robust traffic configurations as well as hosting a protected DMZ for hosting a Web site or performing URL filtering and virus detection. Designed for mid-sized organizations, the PIX 515 UR provides nearly 170 Mbps of throughput and over 100, 000 concurrent connections for fast, reliable, and affordable security protection.