[ipxe-devel] iPXE: Authentification Problem

[Michael Brown]

On 22/10/13 22:03, Sara Martínez wrote:
> #!ipxe
>
> login
>
> ifopen net0
> set net0/175.190:string ${username}
> set net0/175.191:string ${password}
>
> dhcp net0
> chain ${net0.dhcp/filename}
>
> I checked these packets with wireshark: DHCP discover and DHCP request.
> They contain the Etherboot encapsulation (175) with the options:
>
>           ipxe.bus-id (177), ipxe.bzimage (24), ipxe.elf (34),
> ipxe.multiboot (25), ipxe.pxe (33), ipxe.pxeext (16), ipxe.version (235)
> , ipxe.http (19), ipxe.iscsi (17), ipxe.dns (23), ipxe.tftp (21),
> ipxe.menu (39), ipxe.aoe (18).
>
> And the options ipxe.username and ipxe.password are not in the packet.

That's expected behaviour; iPXE will not add arbitrary DHCP options into 
the DHCPDISCOVER or DHCPREQUEST packets.

I would suggest that you use something like:

   if (exists ipxe.username and exists ipxe.password) {
     filename "/ltsp/i386/menu-login.ipxe";
   } else {
     filename "/ltsp/i386/undionly.kpxe";
   }

and have menu-login.ipxe contain

   #!ipxe
   login
   chain -ar menu.ipxe

Michael