Freeware Firewall & NAT

Firewall:

• Simple TDI Based Open Source Personal Firewall [GNU GPL]



• DeleGate [Other/Proprietary License]



• PktFilter [BSD License] (also has a SourceForge.net project page)



• IP|Screen (site down, development probably stopped. Anybody who can point me to the new location???)



• CodeSeeker [GNU GPL]



• IP Filter Firewall [GNU GPL]



• WIPFW [BSD]



• iSafer [GNU GPL]

NAT:

• Pseud IP Masquerade (PIPMasq)