HP Smart Update Manager - Manual (Page 96)

5 Advanced topics
Configuring IPv6 networks
You can deploy to remote nodes in IPv6-based networks for Windows and Linux node servers.
Using HP SUM with IPv6 networks presents challenges for IT administrators.
For Windows-based servers, to communicate with remote node servers, HP SUM uses either existing
credentials or the user-provided user name and password to connect to the admin$ share. This
share is an automatic share provided by Windows Server. After HP SUM connects to the admin$
share, it copies a small engine to the node server for the duration of the installation. After this
engine starts, HP SUM uses this engine to communicate between the local and remote node server.
During this process, HP SUM opens ports in the Windows firewall to enable HP SUM to communicate
with the HP SUM engine on the node over SSL to pass data among local and remote systems. For
more information about the ports used, see
“Network ports used by HP SUM” (page 96) . After the
installation is completed or canceled, HP SUM stops the remote engine, removes it from the node,
closes the port on the Windows firewall, and then releases the share to the node server admin$
share.
For Linux-based servers, to communicate to remote node servers, HP SUM starts by using the
user-provided user name and password to create a SSH connection to the node server. After it
connects, HP SUM copies a small engine to the node server for the duration of the installation.
After this engine starts, HP SUM uses this engine to communicate between the local and remote
node server. During this process, HP SUM opens ports in the iptables firewall to enable HP SUM
to communicate with the HP SUM engine over SSL to pass data between the local and remote
systems. For more information about the ports used, see
“Network ports used by HP SUM” (page
96) . When the installation is completed or canceled, HP SUM stops the remote engine, removes
it from the target server, closes the port in the iptables firewall, and then closes the SSH connection
to the node server.
To set up IPv6 networking, refer the documentation for your operating system.
Network ports used by HP SUM
HP SUM requires that certain network ports are available for proper operation. If you lock down
network ports, make sure that the ports listed in the network port tables are open so that HP SUM
works correctly when connecting to remote node servers and hosts. If you are unable to unlock
these network ports, you must run HP SUM locally and update network-based hosts, such as the
OA, iLO, and VC modules, through their web interfaces.
NOTE: Use the open_firewall parameter for HP SUM to automatically open the required
firewall ports on the local host and any remote Linux servers.
Updates for most node types 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
serve firmware binaries to the node and to communicate node status. The remote node issues HTTP
requests and posts status updates to the server running HP SUM during the update process. If there
is a routing problem or firewall blocking traffic back from the remote node to the system running
HP SUM, firmware updates might be blocked, status updates blocked or delayed, or both.
Table 2 HP SUM Windows network ports
Description Ports
Establishes a connection to a remote node via SSH to perform node inventory. Port 22
A secure data port used to transfer information. Port 443
96 Advanced topics