RFC 4472:Operational Considerations and Issues wit...

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Operational Considerations and Issues with IPv6 DNS

1. Introduction

1.1. Representing IPv6 Addresses in DNS Records

1.2. Independence of DNS Transport and DNS Records

1.3. Avoiding IPv4/IPv6 Name Space Fragmentation

1.4. Query Type '*' and A/AAAA Records

2. DNS Considerations about Special IPv6 Addresses

2.1. Limited-Scope Addresses

2.2. Temporary Addresses

2.3. 6to4 Addresses

2.4. Other Transition Mechanisms

3. Observed DNS Implementation Misbehavior

3.1. Misbehavior of DNS Servers and Load-balancers

3.2. Misbehavior of DNS Resolvers

4. Recommendations for Service Provisioning Using DNS

4.1. Use of Service Names instead of Node Names

4.2. Separate vs. the Same Service Names for IPv4 and IPv6

4.3. Adding the Records Only When Fully IPv6-enabled

4.4. The Use of TTL for IPv4 and IPv6 RRs

4.4.1. TTL with Courtesy Additional Data

4.4.2. TTL with Critical Additional Data

4.5. IPv6 Transport Guidelines for DNS Servers

5. Recommendations for DNS Resolver IPv6 Support

5.1. DNS Lookups May Query IPv6 Records Prematurely

5.2. Obtaining a List of DNS Recursive Resolvers

5.3. IPv6 Transport Guidelines for Resolvers

6. Considerations about Forward DNS Updating

6.1. Manual or Custom DNS Updates

6.2. Dynamic DNS

7. Considerations about Reverse DNS Updating

7.1. Applicability of Reverse DNS

7.2. Manual or Custom DNS Updates

7.3. DDNS with Stateless Address Autoconfiguration

7.4. DDNS with DHCP

7.5. DDNS with Dynamic Prefix Delegation

8. Miscellaneous DNS Considerations

8.1. NAT-PT with DNS-ALG

8.2. Renumbering Procedures and Applications' Use of DNS

9. Acknowledgements

10. Security Considerations

11.1. Normative References

11.2. Informative References

12. Appendix A. Unique Local Addressing Considerations for DNS

13. Appendix B. Behavior of Additional Data in IPv4/IPv6 Environments

14. Authors' Addresses

15. Full Copyright Statement

16. Intellectual Property

17. Acknowledgement

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