VILLASnode/etc/examples/nodes/multicast.conf

nodes = {
	udp_node = {					# The dictionary is indexed by the name of the node.
		type = "socket",			# For a list of available node-types run: 'villas-node -h'

	### The following settings are specific to the socket node-type!! ###

		in = {
			address = "127.0.0.1:12001"	# This node only received messages on this IP:Port pair

			multicast = {			# IGMP multicast is only support for layer = (ip|udp)
				enabled	= true,

				group = "224.1.2.3",	# The multicast group. Must be within 224.0.0.0/4
				interface = "1.2.3.4",	# The IP address of the interface which should receive multicast packets.
				ttl = 128,		# The time to live for outgoing multicast packets.
				loop = false,		# Whether or not to loopback outgoing multicast packets to the local host.
			}
		},
		out = {
			address = "127.0.0.1:12000",	# This node sents outgoing messages to this IP:Port pair
		}
	}
}