Curt Sampson writes:
> I was under the impression that, if configured to follow a multicast
> source, xntpd could do the same thing. I've never mucked with it
> enough to get this to work, but including such a config file as
> the default /etc/ntp.conf might be a good idea.

It is pretty trivial -- you just turn on "broadcastclient". It is one
line. 

Perry