fix mac address selection with unnumbered carpdevs

IP-traffic over a carp interface with the underlaying carpdev being unnumbered
(in the numbered case usually the ifp is the carpdev to begin with) went out
with the carpdev's mac address istead of the carp interface's one due to a
carp hack in ether_output exchanging the carp ifp for its carpdev ones one.
move the source mac selection to before that.
fixes unnumbered carp use in environments with strict mac address regimes
like some exchange points. issue found by your's truly the hard way.
ok mpi dlg

0 files changed, 0 insertions, 0 deletions