The Multicast Discovery plugin allows discovery other nodes using multicast requests
'org.elasticsearch.plugin:discovery-multicast:2.1.2'
<dependency>
<groupId>org.elasticsearch.plugin</groupId>
<artifactId>discovery-multicast</artifactId>
<version>2.1.2</version>
</dependency>
<dependency org="org.elasticsearch.plugin" name="discovery-multicast" rev="2.1.2"/>
"org.elasticsearch.plugin", "discovery-multicast", "2.1.2"