Hazelcast: connecting to remote cluster

To connect to the remote cluster, make sure the cluster uses the external IP and not 127.0.0.1. In our case we have a single physical system, with multiple nodes, with tcp-ip mode enabled. The hazelcast.xml has the configuration:

<tcp-ip enabled="true">
    <!-- This should be external IP -->
    <interface>172.x.x.x</interface>
</tcp-ip>