The introduction of a new basis for addressing and handling communication between networking nodes necessitates the analysis of these concepts and protocols. IPv6 was initially constructed with a huge amount of conceptual changes from IPv4, including the mandatory addition of IPSec. Some of these changes have made it to implementation level, while others have been dropped. This thesis evaluates the current state of the testing software available for IPv6 security analysis and proceeds by performing tests on the network stacks of current operating systems. This work will be facilitated by a laboratory setup specifically for this purpose. Evaluation of the data gained through this approach provides valuable information concerning the current state of IPv6. The thesis ends with the conclusion that, although there is still work to be done, IPv6 is ready to be deployed from an endpoint security point of view. Possible fields of future work include precise analysis of the reasons for discovered vulnerabilities, for example through source code review, and testing in contexts offering a higher level of complexity.