This book also features a method for solving a problem with IPv6 forward-and reverse-mapping, and techniques to help clients communicate with IPv6 islands IPv4 resources. Topics include: DNS and IPv6? Learn the structure and representation of IPv6 addresses, and syntax AAAA and PTR ​​records in BIND ip6.arpa IPv6 reverse-mapping zone on IPv6? Use IPv6 addresses and networks in ACL, and sign and delegate to the IPv6-talk server name resolver configuration ? Popular stub resolver configuration (Linux / Unix, MacOS X, and Windows) to query the name server is IPv6-speaking DNS64? Learn about technology that lets clients transition to IPv6-only network stack to communicate with IPv4 servers Troubleshooting? Use nslookup and dig troubleshooting tools to search for the IPv6 address of the domain name, or reverse-mapped IPv6 addresses to domain names