On Tue, Aug 15, 2017 at 10:42:42AM +0200, Pascal Hambourg wrote: > Le 15/08/2017 à 10:03, Bonno Bloksma a écrit : > > > > Can someone help me to understand this? Why does DHCP work when the iptable lines looks like in the first example > > DHCP software usually use the raw network interface, by-passing the IP stack and iptables rules. Would one "configure" DHCP firewalling with ebtables, or ip, or something else?