Nortel's whole approach to security is different to the other manufacturers on test, as this bundle incorporates two products: the 6600 Accelerator and the Director 5024 firewall.
Kerio's stateful inspection WinRoute Firewall 6 operates on Windows 2000/XP/2003. After a painless and quick installation and reboot, it is ready to run.
With individual PCs being a high risk factor in a network, a personal firewall is an important consideration, particularly when you have notebooks going in and out of the company. CrossTec's NetOp Desktop Firewall is one choice.
Symantec's Enterprise Firewall works with Windows 2000/2003 or Solaris 8/9. We installed it on our Windows Server 2003 machine with two network interfaces (a requirement of the software).