Re: NIC identification with PXE?

Hi,
> We use PXE and Etherboot to install FreeBSD 4 systems.  Until recently
> all of these systems used Intel EtherExpressPro1000 82540EM NICs so all
> that was necessary was to have the DHCP server reply with the
> "e1000.zpxe" file.
> 
> Now systems that use Broadcom Tigon 3 5721 NICs are being introduced
> which require the "tg3.zpxe" file.
> 
> Is there a mechanism by which the DHCP server can automatically
> determine the model of NIC that is being used so that it can reply with
> the matching file?  We use a custom DHCP server which can be modified if
> necessary.
I use the following in my setup to distinguish between different nics.
if substring (hardware, 1, 3) = 00:06:29 {
   option pxelinux.configfile "pxelinux.cfg/netvista2800";
}
if substring (hardware, 1, 3) = 00:30:05 {
   option pxelinux.configfile "pxelinux.cfg/scoveryxs";
}

You just have to find out the different beginnings of the MAC-address.

HTH
Felix Möller



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