[help] how to make blank undionly.kpxe

[biatche]

Code:

#!ipxe
:try_dhcp
dhcp || goto try_dhcp
:try_boot
chain ${filename} ; sleep 1 ; goto try_boot

Sorry I'm a little slow,

please tell me if i got the program flow wrong

scenarios:
dhcp -> gets ip -> boots ${filename} -> out of myscript.ipxe
dhcp -> gets ip -> boots ${filename} but fails to find filename -> infinite 1 sec loop attempting to boot ${filename}?
dhcp -> doesn't get ip -> infinite loop till it does?

and filename = http://192.........../bootmenu.ipxe right?