Due to the depletion of the global IPv4 address pool, some new Internet clients will not be able to get IPv4 adresses, but only IPv6 addresses. However the majority of the internet still uses IPv4 addresses. The IPv6 only clients should be able to communicate with the IPv4 only servers. For this problem, the combination of the DNS64 (RFC 6147) and NAT64 (RFC 6146) is a good solution.
We test different free software (also called open source) DNS64 and NAT implementations. As for DNS64, we tested BIND and TOTD.
(For our results, see: Gabor Lencse, Sandor Repas, "Performance Analysis and Comparison of Different DNS64 Implementations for Linux, OpenBSD and FreeBSD," aina, pp.877-884, 2013 IEEE 27th International Conference on Advanced Information Networking and Applications (AINA), 2013)
Besides these, we know also the PowerDNS and Unbound.
Can someone suggest other free software for DNS64 implementations?
Had anyone tested their performance and/or stability?
Besides BIND, TOTD, Unbound and PowerDNS, there is a new, experimental DNS64 implementation, mtd64-ng, authored by Dániel Bakai and available from: https://github.com/bakaid/mtd64-ng
Does anyone know further free software DNS64 implementations?
I am just testing them at StarBED and looking for further candidates.
The IPv4 address shortage issues have been resolved. We came upon a scheme that can expand each public IPv4 address by 256M (Million) fold without affecting the current Internet. A proposal called EzIP (phonetic for Easy IPv4) has been submitted to IETF:
https://tools.ietf.org/html/draft-chen-ati-adaptive-ipv4-address-space-03
Essentially, EzIP can establish a sub-Internet capable of serving an area with up to 256M IoTs from just one IPv4 address. This is bigger than the largest city (Tokyo metro) and 75% of the countries. The current Internet then becomes the backbone / infrastructure / skeleton for interconnecting these sub-Internets, yet only for carrying traffic among them, very similar as the electric grid supporting islands of renewable energy generated by individual homes and businesses. Consequently, there will be a lot of spare IPv4 addresses for quite sometime to come. So, much of the efforts in deploying IPv6 are no longer needed.
Thoughts and comments will be much appreciated.
Abe (2018-09-06 08:03)
Dear Colleagues:
Below is the up to date feasibility demonstration that you may like to have a look at.
https://www.avinta.com/phoenix-1/home/RegionalAreaNetworkArchitecture.pdf
Abe (2020-08-29 12:13 EDT)
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