This is more or less a curiosity ...

I configured dom0 with ntpd and timed -F localhost assuming that the 
most accurate time keeping will be on the dom0. It seems though that 
dom0 cannot act as a master.

With a domu configured the same, the dom0 can act as slave with no problem.

Quickly acting on my first assumption, it appears broadcasts only 
function in one direction WRT dom0.

Is there a configuration option to modify this behaviour?

I'm guessing it probably has something to do with the bridge config or 
the config associated with the physical bridged interface but I'm unsure 
what ...

Sarton