Syslinux - Nov 2012 - pxelinux load configuration files (ARP type code, and IPaddress in hex)

Hi!

As documented: http://www.syslinux.org/wiki/index.php/PXELINUX

When pxelinux "boots" it is looking for this:

       /mybootdir/pxelinux.cfg/01-88-99-aa-bb-cc-dd
       /mybootdir/pxelinux.cfg/C000025B
       /mybootdir/pxelinux.cfg/C000025
       /mybootdir/pxelinux.cfg/C00002
       /mybootdir/pxelinux.cfg/C0000
       /mybootdir/pxelinux.cfg/C000
       /mybootdir/pxelinux.cfg/C00
       /mybootdir/pxelinux.cfg/C0
       /mybootdir/pxelinux.cfg/C
       /mybootdir/pxelinux.cfg/default

Is is possible to make pxelinux look for MAC and IP, removing one hex digit (or
2 for mac) and try again like this:

        /mybootdir/pxelinux.cfg/01-88-99-aa-bb-cc-dd
        /mybootdir/pxelinux.cfg/C000025B
        /mybootdir/pxelinux.cfg/01-88-99-aa-bb-cc
        /mybootdir/pxelinux.cfg/C000025
        /mybootdir/pxelinux.cfg/01-88-99-aa-bb
        /mybootdir/pxelinux.cfg/C00002
        /mybootdir/pxelinux.cfg/01-88-99-aa
        /mybootdir/pxelinux.cfg/C0000
        /mybootdir/pxelinux.cfg/01-88-99
        /mybootdir/pxelinux.cfg/C000
        /mybootdir/pxelinux.cfg/01-88
        /mybootdir/pxelinux.cfg/C00
        /mybootdir/pxelinux.cfg/01
        /mybootdir/pxelinux.cfg/C0
        /mybootdir/pxelinux.cfg/C
        /mybootdir/pxelinux.cfg/default

We could be in need for a custom file/menu for this group of addresses (as an
example): /mybootdir/pxelinux.cfg/01-88-99-aa

Could that be possible to add to syslinux?

Regards,
Torgeir Wulfsberg

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On 11/21/2012 06:49 AM, Torgeir.Wulfsberg at kongsberg.com
wrote:
> 
> Is is possible to make pxelinux look for MAC and IP, removing one hex digit
(or 2 for mac) and try again like this:
> 
>         /mybootdir/pxelinux.cfg/01-88-99-aa-bb-cc-dd
>         /mybootdir/pxelinux.cfg/C000025B
>         /mybootdir/pxelinux.cfg/01-88-99-aa-bb-cc
>         /mybootdir/pxelinux.cfg/C000025
>         /mybootdir/pxelinux.cfg/01-88-99-aa-bb
>         /mybootdir/pxelinux.cfg/C00002
>         /mybootdir/pxelinux.cfg/01-88-99-aa
>         /mybootdir/pxelinux.cfg/C0000
>         /mybootdir/pxelinux.cfg/01-88-99
>         /mybootdir/pxelinux.cfg/C000
>         /mybootdir/pxelinux.cfg/01-88
>         /mybootdir/pxelinux.cfg/C00
>         /mybootdir/pxelinux.cfg/01
>         /mybootdir/pxelinux.cfg/C0
>         /mybootdir/pxelinux.cfg/C
>         /mybootdir/pxelinux.cfg/default
> 
> We could be in need for a custom file/menu for this group of addresses (as
an example): /mybootdir/pxelinux.cfg/01-88-99-aa
> 
Not really very useful; besides the rather obvious ambiguity, there
simply isn't a lot of locality in MAC space.

There *may* be some value in specifically the OID portion of the MAC
address (the 01 for Ethernet plus three octets), but I have yet to hear
a compelling enough use case for everyone else to take the load time
penalty.

	-hpa