As I think Jack commented, I was remembering an old trick that predated multicast support in the core.
> On Nov 5, 2015, at 02:51, Marc Welz <m...@ska.ac.za> wrote: > > Not sure if the arp table is involved in this - the destination mac is > (should be) > generated algorithmically from the destination multicast IP address, though > the above might be a unusual workaround.
