pxe_boot

subnet 10.0.0.0 netmask 255.0.0.0 {
#	filename "pxe/pxelinux.0";
next-server 10.1.1.1;
if substring (option vendor-class-identifier, 15, 5) = "00007" {
    filename "/grubx64.efi";
  }
  else  {
    filename "/pxelinux.0";
  }
 
	option routers 10.1.1.1;
	option subnet-mask 255.0.0.0;
	option domain-name-servers 10.1.1.1;
	option ip-forwarding off;
	range dynamic-bootp 10.1.1.80 10.1.1.89;
	default-lease-time 21600;
	max-lease-time 43200;
	option domain-name "domain.int";
	allow unknown-clients;
 }