Illustration firewall_agent.gif shows a diagram of the Management Agent and the Oracle Management Service. A line representing the firewall appears between the Management Agent and the Oracle Management Service.
Two additional lines represent data being uploaded to the Oracle Management Service and the Oracle Management Service contacting the Management Agent, respectively. Text in the diagram explains how you need to:
Configure the Management Agent to use a proxy server for uploads to the Oracle Management Service
Open the Management Agent port (usually 1830) in the firewall so the Oracle Management Service can communicate with the Management Agent.