Network Firewall

A firewall is a system or group of systems that is plugged in behind the router at the Internet connection and implements your security policies and protection. It does this by first blocking unwanted traffic or users from the services you are trying to keep protected. Secondly, it grants access to other traffic or users in which you have already specified as acceptable. To put it simply, a firewall enables you to control incoming and outgoing traffic between the Internet and your protected network.

Netscreen 25 Firewall
Firewall, VPN, and traffic management technology
4 auto-sensing 10/100 Base-T Ethernet ports
25 VPN connections or tunnels
4000 concurrent sessions
100 Mbps of firewall and 20 Mbps of 3DES VPN
           
Netscreen 50 Firewall
Firewall, VPN, and traffic management technology
4 auto-sensing 10/100 Base-T Ethernet ports
50 VPN connections or tunnels
8000 concurrent sessions
170 Mbps of firewall and 50 Mbps of 3DES VPN