All things related to multicast

[bdr <>]

I don't know whether this stuff is of any interest to the working group,
but I ported some multicast apps from linux to OS X and then to Windows
to permit folks at the University Hospital & Medical school to do some
multicast diagnostic stuff from their Windows platforms.  If it's of any
use help yourself!

http://www-personal.umich.edu/~bdr/et/mcast-general.html
http://www-personal.umich.edu/~bdr/et/mcast-windows.html