Open Source Firewall

At work we use commercial Firewall appliances, where the vendors charge a fortune for the updates and support, its poor value for money, so I’m going to be looking into the Open Source alternatives, here’s the ones I’ve identified so far, hopefully I’ll get chance to review them and post my findings -

• http://www.smoothwall.org/
• http://www.ebox-platform.com/
• http://www.vyatta.com/
• http://www.endian.com/en/community/
• http://www.untangle.com/
• http://www.astaro.com/
• http://www.idecogateway.com/
• http://www.zeroshell.net/
• http://www.collax.com/produkte/detail/produkt/Schutz-vor-Angriffen
• http://www.clearfoundation.com/