Hi, has anyone seen this error before? I'm trying to connect to Cassandra. I 
did build KEA using the latest Datastax driver from github.

1544781091.123 [ERROR] (src/cluster_connector.cpp:238:void 
cass::ClusterConnector::on_connect(cass::ControlConnector*)): Unable to 
establish a control connection to host 192.168.15.80 because of the following 
error: Underlying connection error: Received error response 'Unsupported option 
DRIVER_VERSION = 2.11.0' (0x0200000A)
2018-12-14 09:51:31.125 ERROR [kea-dhcp4.dhcp4/1] DHCP4_CONFIG_LOAD_FAIL 
configuration error using file: /usr/local/etc/kea/kea-dhcp4.conf, reason: 
Unable to open database: Session action  failed, Kea error: 
CqlConnection::openDatabase(): cass_session_connect_keyspace() != CASS_OK, 
Cassandra error code: No hosts available, Cassandra future error: Underlying 
connection error: Received error response 'Unsupported option DRIVER_VERSION = 
2.11.0' (0x0200000A)
2018-12-14 09:51:31.126 ERROR [kea-dhcp4.dhcp4/1] DHCP4_INIT_FAIL failed to 
initialize Kea server: configuration error using file 
'/usr/local/etc/kea/kea-dhcp4.conf': Unable to open database: Session action  
failed, Kea error: CqlConnection::openDatabase(): 
cass_session_connect_keyspace() != CASS_OK, Cassandra error code: No hosts 
available, Cassandra future error: Underlying connection error: Received error 
response 'Unsupported option DRIVER_VERSION = 2.11.0' (0x0200000A)

Kær kveðja / Best Regards,
Hreiðar Jóelsson

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