[U-Boot] Fw: TFTP fails when using network switch

[Jerry Van Baren]

Loren A. Linden Levy wrote:
> Hi Jerry,
> 
> Your gonna love this. I was setting the hardware MAC address to be
> FF:FF:FF:FF:FF:FF. When i changed this everything magically started
> working. I guess this MAC has some meaning like the device is a
> router. Anyway, i learned a lot while trying to figure this
> out. Thanks again!
> 
> Alex

That is a multicast (broadcast) address (the bit 0x01 in the first octet 
is set).  Very wrong, as you now know.
   <http://www.denx.de/wiki/view/DULG/EthernetDoesNotWork>
   <http://www.denx.de/wiki/DULG/WhereCanIGetAValidMACAddress>
More detailed explanation:
   <http://en.wikipedia.org/wiki/MAC_address>

Best regards,
gvb