I used the following document to tell me what ports need to be opened. I can't tell you exactly what the ports are used for. http://download-east.oracle.com/docs/cd/B19306_01/em.102/b40103/app_em_p ort_reqs.htm Pat -----Original Message----- From: MacGregor, Ian A. [mailto:ian@xxxxxxxxxxxxxxxxx] Sent: Thursday, May 10, 2007 3:39 PM To: Elliott, Patrick; mccdba1@xxxxxxxxx; oracle-l@xxxxxxxxxxxxx Cc: Shab, Theodore Subject: RE: Grid control agent can NOT upload data to OMS server through firewall What is port 1830 used for? Where does it need to be open. What "machine/service" initiates the connection and what machine/service is the target. I've got folks working on a firewall request and I must have missed 1830. How does the use of port 1830 differ from port 4889 -----Original Message----- From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Elliott, Patrick Sent: Thursday, May 10, 2007 11:41 AM To: mccdba1@xxxxxxxxx; oracle-l@xxxxxxxxxxxxx Subject: RE: Grid control agent can NOT upload data to OMS server through firewall You need to open ports 3872, 1159, 1830, and 4889 1159 is needed if you are doing secure communication. Pat ___________________________________________________________________________________________________ CONFIDENTIALITY AND PRIVACY NOTICE Information transmitted by this email is proprietary to Medtronic and is intended for use only by the individual or entity to which it is addressed, and may contain information that is private, privileged, confidential or exempt from disclosure under applicable law. If you are not the intended recipient or it appears that this mail has been forwarded to you without proper authority, you are notified that any use or dissemination of this information in any manner is strictly prohibited. In such cases, please delete this mail from your records. To view this notice in other languages you can either select the following link or manually copy and paste the link into the address bar of a web browser: http://emaildisclaimer.medtronic.com -- //www.freelists.org/webpage/oracle-l