Administrator Guide

14 : BIOS vs. UEFI | Doc ID 20444677 | June 2018
filename "undionly.kkpxe";
}
}
For detailed information on how to configure your DHCP server please consult the user’s guide for the DHCP
server.
NOTE: Depending on the DHCP server configuration, the client may need to be configured for UEFI HTTP
boot or UEFI iSCSI boot instead of PXE boot. If your current legacy boot DHCP server configuration contains
an option 67 (filename) that is a URL instead of a simple filename, you need to configure the client UEFI
HTTP boot settings instead of PXE boot. If you are using DHCPv6 option 59 (bootfile URL) in legacy mode
you need to configure client UEFI HTTP boot settings instead of PXE boot. If you are using Option 17
(RootPath) you need to configure client UEFI iSCSI boot settings instead of PXE boot. See the UEFI HTTP
boot and UEFI iSCSI boot sections in this paper for details.
4.3.3 PXE Client Configuration
As with other system settings, the PXE client configuration settings are accessible through integrated Dell
Remote Access Controller (iDRAC) interfaces such as RACADM, or locally through the System Setup utility.
In BIOS boot mode, individual network devices provide the PXE settings in System Setup > Device Settings.
However, in UEFI boot mode, PXE settings are configured in the BIOS pages (System Setup > System BIOS
> Network Settings > PXE Device Settings). See Figure 5. The “Network Settings” option in the System BIOS
page is available only in UEFI boot mode.