Benchmarking methodologies that address the performance of network interconnect devices that are IPv4-or IPv6-capable exist, but the

Due to the depletion of the public IPv4 address pool, the transition to IPv6 became inevitable. However, this ongoing transition is taking a long time, and the two incompatible versions of the Internet Protocol must coexist. Different IPv6 transition technologies were developed, which can be used to enable communication in various scenarios, but they also involve additional security issues. In this paper, first, we introduce our methodology for analyzing the security of IPv6 transition technologies in a nutshell. Then, we develop a priority classification method for the ranking of different IPv6 transition technologies and their most important implementations, so that the vulnerabilities of the most crucial ones may be examined first. Next, we conduct a comprehensive survey of the existing IPv6 transition technologies by describing their application scenarios and the basics of their operation and we also determine the priorities of their security analysis according to our ranking system. Finally, we show that those IPv6 transition technologies that we gave high priorities, cover the most relevant scenarios.

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SUMMARY A new Internet Draft on benchmarking methodologies for IPv6 transition technologies including DNS64 was adopted by the Benchmarking Working Group of IETF. The aim of our effort is to design and implement a test program that complies with the draft and thus to create the world's first standard DNS64 benchmarking tool. In this paper, we disclose our design considerations and high-level implementation decisions. The precision of our special timing method is tested and found to be excellent. Due to the prudent design, the performance of our test program is also excellent: it can send more than 200,000 AAAA record requests using a single core of a desktop computer with a 3.2 GHz Intel Core i5-4570 CPU. Its operation comprises all the functionalities required by the draft including checking the timeliness and validity of the answers of the tested DNS64 server. Our DNS64 benchmarking program, dns64perf++, is distributed as free software under GNU GPL v2 license for the benefit of the research, benchmarking and networking communities.

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