Fixes for LLADDR="00:00:00:00:00:00"

Should address at least: bnc#889287, bnc#898620


REQ: It is hard to spot, because `d` and `default` seem to be the same, but they are different. The default value will never be taken because now it is in the wrong hash!
(BTW I have commented on this on yesterday already but the comment got lost when you rebased.)