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The embedded ActiveMQ in ServiceMix is configured to use network multicasts to discover other broker instances on the network. Sometimes, multicasts are disabled by policy, causing this exception: ERROR - BrokerService - Failed to start ActiveMQ JMS Message Broker. Reason: java.net.SocketException: error setting options The solution is to disable the multicast feature for ActiveMQ. In conf/activemq.xml, change... <transportConnectors>
<transportConnector uri="tcp://localhost:61616" discoveryUri="multicast://default"/>
</transportConnectors>
<networkConnectors>
<networkConnector uri="multicast://default"/>
</networkConnectors>
... to ... <transportConnectors>
<transportConnector uri="tcp://localhost:61616"/>
</transportConnectors>
<networkConnectors>
</networkConnectors>
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