QUES: What code is present architecturally in net/ipv4/netfilter directory and what code is present architecturally in net/netfilter directory ? QUES: Why do we use terms layer 5 connection trackers and layer 3 connection trackers whereas connection is maintained only at layer 4 ? Ninad. -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html