IPv6-to-IPv6 Network Prefix Translation

IPv6-to-IPv6 Network Prefix Translation (NPTv6) is an experimental specification for IPv6 to achieve the address-independence at the network edge, given by network address translation (NAT) in Internet Protocol version 4. It has fewer architectural problems than traditional IPv4 NAT; it is for example stateless and preserves the reachability attributed to the end-to-end principle. However, the method still lacks solutions to translate embedding IPv6 addresses, for example in IPsec, and requires a more complex DNS setup (split-horizon DNS).[1]

One use case for IPv6-IPv6 Network Prefix Translation is multihoming for small networks; this may also be implemented with DHCPv6.[2]

References

Wasserman, Margaret; Fred Baker (June 2011). "RFC 6296 - IPv6-to-IPv6 Network Prefix Translation". ietf.org. Retrieved 2012-04-30.
Troan, O.; D. Miles; S. Matsushima; T. Okimoto; D. Wing (March 2014). "RFC7157 - IPv6 Multihoming without Network Address Translation". ietf.org. Retrieved 2015-03-06.

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[wasserman-1] Wasserman, Margaret; Fred Baker (June 2011). "RFC 6296 - IPv6-to-IPv6 Network Prefix Translation". ietf.org. Retrieved 2012-04-30.

[troan-2] Troan, O.; D. Miles; S. Matsushima; T. Okimoto; D. Wing (March 2014). "RFC7157 - IPv6 Multihoming without Network Address Translation". ietf.org. Retrieved 2015-03-06.