ADF connection issue with Cassandra

Hi, 

I am trying to connect a cassandra DB hosted in azure cosmos db. I created the linked service but getting below error on test connection. 

Already checked the cassandra DB and its public network access is set to all networks. 

Google suggested enabling SSL but there is no such option in linked service. 

Please help. 

Failed to connect to the connector. Error code: 'Unknown', message: 'Failed to connect to Cassandra server due to, ErrorCode: InternalError'
Failed to connect to the connector. Error code: 'InternalError', message: 'Failed to connect to Cassandra server due to, ErrorCode: InternalError'
Failed to connect to Cassandra server due to, ErrorCode: InternalError
All hosts tried for query failed (tried 51.107.58.67:10350: SocketException 'A request to send or receive data was disallowed because the socket is not connected and (when sending on a datagram socket using a sendto call) no address was supplied')