Hello again. After a restart of the machine, this problem disappeared for 10 days, but unfortunately showed up again yesterday. Seems like net_dropmonitor does not catch this one, the only output I get is: nf_hook_slow 171 1 This is definately something you should look into. I would be glad to assist if there is anything I can do. -- Bj(/)rnar -- 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