E Enterprise Manager Firewall Port Requirements

If your Enterprise Manager grid environment is making use of firewalls, ensure you specify the appropriate ports.

Figure E-1 provides a topology of an Enterprise Manager grid environment that is using a firewall, and also illustrates the appropriate ports that you must specify.

Figure E-1 Enterprise Manager Firewall Port Requirements

The conventions used in the preceding illustration are as follows:

Table E-1 Conventions Used

Convention	Description
C	Is the entity that is making the call.
*	Enterprise Manager will default to the first available port within an Enterprise Manager set range.
**	Enterprise Manager will default to the first available port.
***	Are the Database listener ports.

Note:

The direction of the arrows specify the direction of ports.
Port 1159, 4898-4989 specify that 1159 is the default. If this port is not available, the management Service will search in the range that is specified.
To clone between two target hosts separated by a firewall, the agents will need to communicate to each other on the agent ports. The initiating agent will make the call.