Since IPv6 was first introduced, there have been many changes to the protocol with many RFCs updated or deprecated. Unfortunately, this means that some books have incorrect information, and even recent authors may have the wrong impression about how IPv6 should be implemented/deployed. Brian Carpenter from the IETF recommends these two books as containing the most up to date explanations of IPv6.
- IPv6 for all (free book). Available in English and other languages.
- Migrating to IPv6 by Marc Blanchet
- IPv6 Essentials by Silvia Hagen
- IPv6, Theorie et pratique (French)