After DNS64 is configured and deployed properly, a reverse IP6.ARPA zone will be created for the DNS64 prefix to provide a mapping for the reverse record of the synthesized AAAA record.
This will map the synthesized IPv6 address under IP6.ARPA to the corresponding IPv4 domain name under in-ADDR.ARPA using synthesized CNAME records
The DNS deployment options: DNS64 Server and DNS64 Contact can be used to specify the name of the server and contact for the created reverse zones. These options are configurable in the Configuration level, DNS view level, and Server level. For more information, refer to DNS Deployment Options.