The LLTD Responder in Microsoft Windows Vista does not send the Mapper a response to a DISCOVERY packet if another host has sent a spoofed response first, which allows remote attackers to spoof arbitrary hosts via a network-based race condition, aka the “Total Spoof” attack.
osvdb.org/33661
www.securityfocus.com/archive/1/462793/100/0/threaded
www.securityfocus.com/archive/1/464617/100/0/threaded
www.securityfocus.com/bid/23263
www.symantec.com/avcenter/reference/Vista_Network_Attack_Surface_RTM.pdf
www.symantec.com/enterprise/security_response/weblog/2007/04/microsofts_inaccurate_teredo_d.html