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Mikrotik RouterOS

Assumptions

  • You are running RouterOS 7.12.1 or later
  • You have a DHCP server, whose name you will substitute in instead of DHCPSERVER
  • You have a DHCP address pool whose name you will substitute in instead of DHCPPOOL

The steps referencing servers and pools can be repeated for as many servers and pools as you need.

Disable BOOTP support for the server

/ip dhcp-server/set DHCPSERVER bootp-support=none

BIOS

Download netboot.xyz.kpxe and register it to the TFTP server:

/tool fetch url="https://boot.netboot.xyz/ipxe/netboot.xyz.kpxe"
/ip tftp add req-filename=netboot.xyz.kpxe real-filename=netboot.xyz.kpxe allow=yes read-only=yes

Add a DHCP option for the BIOS bootfile and add it to a BIOS PXE boot option set:

/ip dhcp-server option add code=67 name=pxe-bios-netboot.xyz value="'netboot.xyz.kpxe'"
/ip dhcp-server/option/sets add name="pxe-bios" options=pxe-bios-netboot.xyz

Set the BIOS PXE boot option set as the server's option set.

/ip dhcp-server/set DHCPSERVER dhcp-option-set=pxe-bios

NOTE: If you have an existing option set, you should skip creating a new option set and should instead add the PXE BIOS bootfile option to your existing option set.

UEFI

Download netboot.xyz.efi and register it to the TFTP server:

/tool fetch url="https://boot.netboot.xyz/ipxe/netboot.xyz.efi"
/ip tftp add req-filename=netboot.xyz.efi real-filename=netboot.xyz.efi allow=yes read-only=yes

Add a DHCP option for the UEFI bootfile and add it to a UEFI PXE boot option set:

/ip dhcp-server option add code=67 name=pxe-uefi-netboot.xyz value="'netboot.xyz.efi'"
/ip dhcp-server/option/sets add name="pxe-uefi" options=pxe-uefi-netboot.xyz

Add a DHCP matcher that looks for the 0x0007 (x86-64 UEFI) architecture type and applies the PXE UEFI option set, overriding the default PXE BIOS options:

/ip dhcp-server/matcher/add name="pxe-uefi-matcher" server=DHCPSERVER address-pool=DHCPPOOL option-set=pxe-uefi code=93 value="0x0007"