HP Smart Update Manager (User Guide) - Manual (Page 65)

access is required for both networks. If you keep both networks isolated, you need to perform
management and operating systems tasks separately.
•
Updates for HP Integrity iLO and Superdome 2 nodes require network traffic in both directions
between the server running HP SUM and the node. The server running HP SUM creates a
local HTTP server, which is used to server firmware binaries to the node. The node issues an
HTTP request to the server running HP SUM to retries the firmware binaries during the update
process.
Network ports used by HP SUM 65