If you have read the main Firewall topic, you will know that a “Hardware” firewall is actually a separate box to your PC and this provides “perimeter protection” for your LAN.
Good News, if you have a router (ADSL Gateway or Broadband Router) you will already have a “Free” Hardware firewall. However the firewall capabilities of different routers varies tremendously. For most people the firewall built-in to the router is usually the best option. However, if you are still reading and you don’t mind playing with computers and Linux there are at least 3 hardware firewall that I can think of.
To use these “Free” (Open source) firewalls you will need: –
1. A spare computer – ideally a quiet one but it doesn’t need to be very powerful.
2. An extra Network card (NIC). Fitting an extra card is a must to enable the PC to become a router. You can have 3 NICs if you want a DMZ!
3. The firewall software/operating system of choice on a CD/DVD.
4. Plenty of time to play 🙂