d Moore, K. Connection of IPv6 Domains via IPv4 Clouds. RFC 3056, Internet Engineering Task Force, February 2001. 4. Carpenter, B. and Jung, C. Transmission of IPv6 over IPv4 Domains without Explicit Tunnels. RFC 2529, Internet Engineering Task Force, March 1999. 5. Townsley, W. and Troan, O. IPv6 Rapid Deployment on IPv4 Infrastructures (6rd) - Protocol Specification. RFC 5969, Internet Engineering Task Force, August 2010. 6. Templin, F., Gleeson, T., and Thaler, D. Intra-Site Automatic Tunnel Addressing Protocol (ISATAP). RFC 5214, Internet Engineering Task Force, March 2008. 7. Huitema, C. Teredo: Tunneling IPv6 over UDP through Network Address Translations (NATs). RFC 4380, Internet Engineering Task Force, February 2006. 8. Durand, A., Droms, R., Woodyatt, J., and Lee, Y. Dual-Stack Lite Broadband Deployments Following IPv4 Exhaustion. RFC 6333, Internet Engineering Task Force, August 2011. 9. Tsirtsis, G. and Srisuresh, P. Network Address Translation - Protocol Translation (NAT-PT). RFC 2766, Internet Engineering Task Force, February 2000. 10. Aoun, C. and Davies, E. Reasons to Move the Network Address Translator - Protocol Translator (NAT-PT) to Historic Status. RFC 4966, Internet Engineering Task Force, July 2007. 11. Arends, R., Austein, R., Larson, M., Massey, D., and Rose, S. DNS Security Introduction and Requirements. RFC 4033, Internet Engineering Task Force, March 2005. 12. Li, X., Bao, C., and Baker, F. IP/ICMP Translation Algorithm. RFC 6145, Internet Engineering Task Force, April 2011. 13. Weil, J., Kuarsingh, V., Donley, C., Liljenstolpe, C., and Azinger, M. IANA-Reserved IPv4 Prefix for Shared Address Space. RFC 6598, Internet Engineering Task Force, April 2012. 14. Bagnulo, M., Matthews, P., and vanBeijnum, I. Stateful NAT64: Network Address and Protocol Translation from IPv6 Clients to IPv4 Servers. RFC 6146, Internet Engineering Task Force, April 2011. 15. Perreault, S., Yamagata, I., Miyakawa, S., Nakagawa, A., and Ashida, H. Common requirements for Carrier Grade NATs (CGNs). Internet-Draft 