Netfilter Hooks in the Linux Kernel

Netfilter Hooks in the Linux Kernel
http://hmyblog.vmmatrix.net/lna/0131777203_ch19lev1sec3.html

想要徹底了解 Netfilter NAT的 kernel data structure, 看這幾篇文章就對了

http://hmyblog.vmmatrix.net/lna/0131777203_ch21.html
http://hmyblog.vmmatrix.net/lna/0131777203_ch21.html
http://hmyblog.vmmatrix.net/lna/0131777203_ch21.html

packet flow in the linux kernel
http://imagestream.com/~josh/PacketFlow-new.png
http://xkr47.outerspace.dyndns.org/netfilter/packet_flow/packet_flow9.png
http://en.wikipedia.org/wiki/Image:Iptables_packet_traversal.pdf
http://www.shorewall.net/images/Netfilter.png
http://dmiessler.com/images/DM_NF.PNG
http://linux-ip.net/nf/nfk-traversal.pdf