Journey of a network packet through linux 2.6 network stack

Hi, A document with this heading can be found for 2.4 network stack. But i have not found any document regarding 2.6 network stack. When i was searching netfilter mailing list archive, i got the following post : http://lists.netfilter.org/pipermail/netfilter/2007-august/069583.html in this post author mentioned about a document named after this. but does not gave any link to that document. so i'm wondering if any similar document can be found? cheers. ------ --aft