NAT66, NAT46, NAT64, and DNS64

NAT66, NAT46, NAT64, and DNS64 each offer their own distinct strategies and solutions to tackle the obstacles encountered during the transition from IPv4 to IPv6. This section provides a concise overview of these methods.

Method	Overview
NAT66	NAT66 is used for translating an IPv6 source or destination address to a different IPv6 source or destination address. Not a common method, since most IPv6 networks do not require NAT66.
NAT46	NAT46 is used to translate IPv4 addresses to IPv6 addresses. Enable a client on an IPv4 network to communicate transparently with a server on an IPv6 network.
NAT64 and DNS64	NAT64 is used to translate IPv6 addresses to IPv4 addresses. Enable a client on an IPv6 network to communicate transparently with a server on an IPv4 network. Typically used when networks are being transitioned from IPv4 to IPv6. NAT64 is typically employed in tandem with DNS64. DNS64 is responsible for synthesizing AAAA records from A records.

Note that these are broad use cases and the specific use of each type of NAT can vary depending on the network configuration and requirement.