How to include a shield protected node into tribe node setup?

I am having one data node with shield and one tribe node without shield. When I try to bind the tribe node with data node. I am getting authentication error as below,

ElasticsearchSecurityException[missing authentication token for action [internal:discovery/zen/unicast]];
Caused by: ElasticsearchSecurityException[missing authentication token for action [internal:discovery/zen/unicast]]

Am I missing anything?

You need to have Shield on all of the clusters including the tribe nodes, please see the shield tribe node installation for more information.

Thank you. It did the trick