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iLO NIC auto-selection
iLO NIC auto-selection enables iLO to choose between the iLO Dedicated Network Port and the
iLO Shared Network port. At startup, iLO searches for network activity on the available ports, and
automatically selects one for use based on network activity.
This feature enables you to use a common preconfiguration for your Express servers. For
example, if you have several servers, some might be installed in a data center where iLO is
contacted through the iLO Dedicated Network Port. Other servers might be installed in a data
center where iLO is contacted through the Shared Network Port. When you use iLO NIC auto-
selection, you can install a server in either data center and iLO will select the correct network
port.
By default, NIC auto-selection is disabled.
More Information
Enabling iLO NIC auto-selection
NIC auto-selection support
• iLO 5 can be configured to search both Shared Network Ports on servers that support this
configuration.
• iLO 5 supports NIC failover. When enabled, iLO automatically begins searching for a NIC
connection when the current connection fails. NIC auto-selection must be enabled to use
this feature.
iLO startup behavior with NIC auto-selection enabled
When NIC auto-selection is enabled:
• If iLO was just connected to power, it tests the iLO Dedicated Network Port first.
• If iLO was just reset, it tests the last used iLO network port first.
• When testing a network port, if iLO detects network activity, then that port is selected for
use. If network activity is not found after approximately 100 seconds, iLO switches to the
opposite network port and begins testing there. iLO alternates testing between the iLO
Dedicated Network Port and the
iLO Shared Network Port until network activity is detected. An iLO reset occurs each time
iLO switches between network ports for testing purposes.
CAUTION:
If any of the physical NICs are connected to an unsecured network, unauthorized access
attempts might occur when iLO is alternating between the iLO network ports. NEC
Corporation strongly recommends that whenever iLO is connected to any network:
◦ Use strong passwords for iLO access.
◦ Never connect the iLO Dedicated Network Port to an unsecured network.
◦ If the iLO Shared Network Port is connected to an unsecured network, use VLAN
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