The NetScreen-25 offers a complete security solution for small- and medium-sized companies and enterprise branch offices. Featuring four auto sensing 10/100 Base-T Ethernet ports (Trust, Untrust, DMZ, and one reserved for future use), the NetScreen-25 is a high-performance security appliance, protecting the LAN as well as public servers such as mail, web, or FTP.Featuring firewall, VPN, and traffic management technology of NetScreen's ScreenOS, the NetScreen-25 is truly an all-in-one solution. The NetScreen-25 supports up to 4,000 concurrent TCP/IP sessions and 25 VPN tunnels.