Did a bit of googling, looks like Intel has had a duplicate MAC address problem as recently as January last year :
http://www.intel.com/support/motherboards/server/stl2/ta-503.htm -------------------------------------------------------------------- IETF IPng Working Group Mailing List IPng Home Page: http://playground.sun.com/ipng FTP archive: ftp://playground.sun.com/pub/ipng Direct all administrative requests to [EMAIL PROTECTED] --------------------------------------------------------------------