The Firewall Primer

The
Firewall Primer

Simply put, a firewall is a device, software or hardware based, which can control the flow of network traffic between two networks. A good firewall is important for an organization to prevent hackers from getting into the network, and to control what its employees can access from outside. In this In Depth story, we answer some questions on firewalls and test the effectiveness of two hardware firewalls–Secure PIX Firewall 506 and Sonicwall SOHO2 Firewall–for the SOHO segment

A Powerful Firewall from Cisco

Secure PIX 506 offers enterprise-class security in a product aimed for a smaller setup

A Low- to Medium-end Firewall 

A firewall for small offices that offers NAT and content filtering, in addition to protecting
your network from external intrusions