Stateless address autoconfiguration allows a host to connect to a
network, configure an address and start communicating with other
nodes without ever registering or authenticating itself with the
local site. Although this allows unauthorized users to
connect to
and use a network, the threat is inherently present in the
Internet architecture.
Any node with a physical attachment to
a network can generate an address that provides connectivity.
The use of Duplicate Address Detection opens up the possibility of denial of
service attacks. Any node can respond to Neighbor Solicitations for a tentative
address, causing the other node to reject the address as a duplicate.
