How can I configure a connection from Bluemix to on-premise database? -

i have configured secure gateway service on ibm bluemix , secure gateway client in environment. both connected. thereafter, added connection call cloud app provided host:port combination. app getting error connection refused.

how fix this?

in cases error caused 1 of following reasons:

• in secure gateway configuration have provide ip address , port on-premises database, seen secure gateway client running. did provide correct ip address , port number?
• the firewall on database server blocking access secure gateway client.
• the secure gateway client needs acl (access control list) opens connections.
• your database not configured accessed outside. did open port?