NetApp FC4600 Hardware Cabling Manual page 22

When using out-of-band management, a Dynamic Host Configuration Protocol
(DHCP) server is recommended for assigning Internet Protocol (IP) addresses and
other network configuration settings. A DHCP server provides the network
administrators the ability to manage and automatically assign IP addresses. If a
DHCP server is not used, you must manually configure the controllers. For more
information, refer to the Adding a Host or Storage Array online help topic in the
Enterprise Management Window.
ATTENTION Risk of unauthorized access to or loss of data – If the out-of-band
management method is used, connect the Ethernet ports on the controller tray or the
controller-drive tray to a private network segment behind a firewall. If the Ethernet
connection is not protected by a firewall, your storage array might be at risk of being
accessed from outside of your network.
NOTE Where two Ethernet ports are available on each controller (four total), you can
use one of the ports on each controller for out-of-band Ethernet connections. Reserve
the second Ethernet port on each controller for access by your Technical Support
representative.
For information about how to create a redundant out-of-band topology, see the topics
Connection" on page 59.
under "Drive
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