Hi, Thank you for all the suggestions. Unfortunately it did not help.
> you are missing 01: on start as suggested in man page Thank you, I overlooked that. However, setting the 01: in front of the MAC address did not help since I'm still getting the same lladdr. # cat /etc/hostname.em0 inet autoconf cat /etc/dhcpleased.conf interface em0 { send client id "01:00:11:22:33:44:55" } # ifconfig em0: flags=808843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,AUTOCONF4> mtu 1500 lladdr 08:00:27:c7:60:ac index 1 priority 0 llprio 3 groups: egress media: Ethernet autoselect (1000baseT full-duplex) status: active inet 192.168.0.209 netmask 0xffff0000 broadcast 192.168.255.255 > My ISPs (one at the house, one at my son's apartment) have the same > setup and I'm using this in /etc/hostname.em0 > > lladdr 00:11:22:33:44:55 > > inet autoconf > This will give the correct IP address in both cases. I commented out my /etc/dhcpleased.conf and set my /etc/hostname.em0 like that, but my inet line is missing after reboot and so is the connection to my network. # ifconfig em0: flags=808843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,AUTOCONF4> mtu 1500 lladdr 00:11:22:33:44:55 index 1 priority 0 llprio 3 media: Ethernet autoselect (1000baseT full-duplex) status: active Best regards, Tomaz