Hi, I am a CSC masters student at NCSU and I am doing a case study on linux stateful firewalls for my thesis work. After going through the netfilter / iptables documentation, I have these following doubts. 1. How does the conntrack module code access the header fields of an IP packet? Does the accessing of IP packets fall under the functions of ip_conntrack module or ip_tables module? 2.I want to access the latest version of ip_tables, ip_conntrack and ip_conntrack_ftp source code. I need to write a simple module on the lines of ip_conntrack to allow a simple connection of my choosing. So I need to know where to start coding. I will be grateful if I get some help in this regard. 3. Is it possible to write our own ip_conntrack module and if yes can we define our own state table? Who defines a state table and where is it defined? Thanks and Regards, Balaji -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html