to workaround this log WARN
when runing JDG clustered mode in a Mac box:
13:49:41,276 WARN [org.jgroups.protocols.UDP] (TransferQueueBundler,shared=udp) JGRP000034: null: failure sending message to /234.99.54.14: java.io.IOException: Can't assign requested address (received 11 identical messages from /234.99.54.14 in the last 63239 ms)
# Adds a multicast route for 224.0.0.1-231.255.255.254
sudo route add -net 224.0.0.0/5 127.0.0.1
# Adds a multicast route for 232.0.0.1-239.255.255.254