Hi.
Attached patch (against CVS) implements UDP multicast support for creating
virtual BUSes.

Excerpt from qemu-doc.texi diff (indeed tested w/these QEMUs):
  # launch one QEMU instance
  qemu linux.img -net nic,macaddr=52:54:00:12:34:56 -net socket,mcast=
230.0.0.1:1234
  # launch another QEMU instance on same "bus"
  qemu linux.img -net nic,macaddr=52:54:00:12:34:57 -net
socket,mcast=230.0.0.1:1234

  # launch yet another QEMU instance on same "bus"
  qemu linux.img -net nic,macaddr=52:54:00:12:34:58 -net socket,mcast=
230.0.0.1:1234

Enjoy
--
--Juanjo

#  Juan Jose Ciarlante (JuanJo) jjo ;at; mendoza.gov.ar
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