Network Boot Options UEFI PXE Boot Policy IPv6 DHCP Unique Identifier Network Boot Retry Support Network Interface Cards (NICs) PCIe Slot Network Boot UEFI PXE Boot Policy Setting the UEFI PXE Boot Policy IPv6 DHCP Unique Identifier Setting the IPv6 DHCP Unique Identifier method Network Boot Retry Support Enabling or disabling Network Boot Retry Support Network Interface Cards (NICs) Enabling or disabling network boot for a NIC PCIe Slot Network Boot Enabling or disabling PCIe Slot Network Boot