References

1 Check Point. "Stateful Inspection Technology Tech Note." http://www.checkpoint.com/products/security/whitepapers/firewall-1_statefulinspection.pdf. March 2002.

2 Netfilter/IPTables Documentation. "What Is Netfilter?" http://www.iptables.org/documentation. March 2002.

3 Fabrice Marie . "Netfilter Extensions HOWTO." http://netfilter.samba.org/documentation/HOWTO//netfilter-extensions-HOWTO.html. March 2002.

4 Lance Spitzner . "Understanding the FW-1 State Table." November 29, 2000. http://www.spitzner.net//fwtable.html. March 2002.

5 Cisco Systems, Inc. "Cisco's PIX Firewall Series and Stateful Firewall Security." http://www.cisco.com/warp/public/cc/pd/fw/sqfw500/tech/nat_wp.pdf. March 2002.