Capturing unprotected data in IPv6 networking environment very much like sniffing in IPv4 environment. Ethereal, a tool already widely used by system/network administrators in various platforms and networks is such an example. Other similar tools sporting IPv6 capabilities and not limited to “passive sniffing” of the physical layer, are soon expected to appear, if they do not exist already. The conclusion is that this type of attack presents similar to IPv4 and real threat for services over IPv6.

However, the mandatory support of IPSec in IPv6 environment might help resolving the problem since the infrastructure to protect any kind of communication (e.g. SQL database queries) is built into the systems, and can be protected against sniffing