dIVI Translation refers to a dual stateless IPv4/IPv6 translation technique. dIVI is an extension of 1:1 stateless IPv4/IPv6 translation (IVI Translation) with features of IPv4 address sharing and dual translation. dIVI-PD is a further extension of dIVI to be well used in Wireline (Fiber, DSL, Cable) and Wireless (3G/4G) access environment, where the prefix delegation (/64 or shorter) is preferred. dIVI-PD is now standardized as MAP-T in the IETF.