@bart L: Dit komt terug in /var/log/messages:
dhclient[12520]: DHCPREQUEST on eth0 to 149.210.149.67 port 67 (xid=0x198ce949)
dhclient[12520]: send_packet: Operation not permitted
dhclient[12520]: DHCPREQUEST on eth0 to 255.255.255.255 port 67 (xid=0x198ce949)