Ethernet assumes unique MACs. Save yourself some time and look up Ethernet II encapsulation. Isn't that the one Plan9 uses anyway?
On Wed, 30 Mar 2005 15:00:57 +0200, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > > I was probably not precise and the question was not well thought > through. What I wanted to ask was: > I did override the MAC address - for some obscure reason, I can't > remember - some 12 years ago on DOS via the packet driver interface, > but is it the OS's responsibility to detect and possibly deal with MAC > address collision or would the Ethernet layer take care of it? > > Instead of googling for "MAC address" etc., I should have searched for > "Ethernet standard", days ago. > The pages I needed were http://standards.ieee.org/faqs/OUI.html and > http://standards.ieee.org/getieee802/802.3.html . Now I only have to > read thorugh the standard. Probably the subject is not worth it (~1500 > pages?). > > The OS can take care of the problem, if the driver supports MAC > address collision detection. >
