In IPv6 the boot path is always given as a URL in DHCPv6 option 59 So we need to run a DHCPv6 service for this
option dhcp6.bootfile-url code 59 = string;
option dhcp6.client-arch-type code 61 = array of unsigned integer 16;
# match arch to send correct booturl https://ipxe.org/cfg/platform#notes