White Papers

10 Zero-touch, bare-metal server provisioning using the Dell EMC iDRAC with Lifecycle Controller Auto Config
2.1.3 DHCP—current and new configuration options
DHCP-current and new configuration options
Current
settings
New settings
Disable
Enable once
Enable once after reset
Enable always
Disable
Do
nothing
Restart DHCP process,
Disable on complete
Wait for iDRAC reset,
then Enable once
Enable always
Enable
once
Disable
Do nothing
Wait for iDRAC reset,
then Enable once
Enable always
Enable
once after
reset
Disable
Restart DHCP process,
Disable on complete
Do nothing
Enable always
Enable
always
Disable
Restart DHCP process,
Disable on complete
Wait for iDRAC reset,
then Enable once
Do nothing
2.1.4 Prerequisites for enabling Auto Config
Before enabling the Auto Config feature, ensure that the following are already set up in the test environment:
 The supported network share (NFS, CIFS, HTTP, or HTTPS) (HTTP and HTTPS for 14th generation
servers) that is on the same subnet as the iDRAC and DHCP server. Test this network share first to
ensure it can be accessed and that the firewall and user- or share permissions have been set up
correctly.
 The Sever Configuration profile is exported to the supported network share. For more information, see
Getting Server Configuration Profiles in this technical white paper. Also, ensure that all the necessary
changes in the profile are made to ensure that proper settings are applied when the Auto Config process
is initiated.
 Firmware update on import: using iDRAC7/8 firmware versions 2.60.60.60 and later and iDRAC9
firmware versions 3.18.18.18 and later, the Server Configuration profile can also include a reference
pointer to a firmware repository stored on the same network share as the profile file itself. When the
profile is imported, iDRAC will update installed firmware, as needed, to ensure the server matches the
firmware versions within the repository, including downgrades, if required. For more details on firmware
updates within profile imports, see Performing firmware update as part of Auto Config in this technical
white paper.
 The DHCP server is set up and DHCP configuration updated as required for iDRAC to call DHCP server
and run Auto Config feature. For more information, see Configuring Windows and Linux DHCP servers to
support Auto Config.
Note: The procedure to fulfill these prerequisites is described later in this white paper. Also, a workflow is provided for
validation of the Auto Config environment.