Hi everyone, I am working on a project, that needs source MAC information for each active connection tracked by conntrack. In the beginning I was thinking about using the nf_conntrack_tuple.src for this purpose, but then I saw that the hash function is taking into account this struct as well. I guess that if I modified it, packets wouldn't be properly identified anymore as part of existing connection. After diving again into the source code I have come across nf_conntrack_extend , which seems to a good place to put the MAC related information. I am really not sure which path should I take. In the simplest case I could just add __u32 src_mac to the nf_conntrack_tuple, but this doesn't seem to be a very elegant solution . Best regards Piotrek -- 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