13. Interaction with Other Neighbor Discovery Extensions

There are two classes of ND extensions that interact with this specification in different ways.

One class encompasses extensions to the DAD mechanisms in [RFC4861] and [RFC4862]. An example of this is Optimistic DAD [RFC4429]. Such extensions do not apply when this specification is being used, since it uses ARO for DAD (which is neither optimistic nor pessimistic -- always one round trip to the router to check DAD).

All other (non-DAD) ND extensions, be they path selection types like default router preferences [RFC4191], configuration types like DNS configuration [RFC6106], or other types like Detecting Network Attachment [RFC6059], are completely orthogonal to this specification and will work as is.