“Microsoft Windows 95 and 98 clients have the capability to bind
multiple TCP/IP stacks to the same MAC address, simply by having
the protocol added more than once in the Network control panel.
This is actually quite useful, except for the fact that these
stacks can run concurrently on the same IP, even if they receive
their IP through BOOTP/DHCP. The effect of the bug is to cause the
number of ACKnowledgement packets sent to be equal to that of the
number of loaded and bound TCP/IP stacks, creating excessive and
significant network noise and collisions. At least one Samba
2.0.0beta1 server on an affected subnet becomes completely
inaccessible when one of these machines is activated.”
Complete
story. (Free site registration required.)