Hi and thanks for the post. There should be a table in the OME user guide (online that came with the product, or from www.delltechcenter.com/ome.  The table is called: Supported Protocols and Ports in OpenManage Essentials And should point out the ports you need. Thanks, Rob
I have installed OME in a locked down DMZ that is highly secure and has a number of different network segments separated by firewalls.. I have installed OMSA on Windows 2012 physical servers and ESXi 5.1 hosts. I also have physical hosts running Linux OS. OME can connect correctly to iDRAC for each server but not to OMSA Can you please advise exactly what firewall ports need to be opened to allow communication between OME and OMSA and also between OME and iDRAC? Thank you
OME firewalls and port requirements