HI, I do have a linux router which forwards a couple of frames. I do like to filter (DROP) all dhcp frames with an specific dhcp client hw address. How can I do this ? Immo This message has been classified Public by IMMO WETZEL on Montag, 29. Januar 2018 at 14:56:58. -- 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