Network Dictionary – Address Family Translation

Address Family Translation (AFT) terms used to describe replacing headers and addresses of one family of IP (IPv4, IPv6) with headers and addresses from another IP family, in an IP packet.

Compare this with Network Address Translation (NAT) which describes addresses translation within one IP family e.g. private to public IPv4 (you should never consider using NAT66, it has no future in the Internet)

Note: AFT will require Name to Address Family Translation where AAAA DNS6 records and A DNS4 records must also be translated (otherwise known as DNS64 and DNS46)


About Greg Ferro

Greg Ferro is a Network Engineer/Architect, mostly focussed on Data Centre, Security Infrastructure, and recently Virtualization. He has over 20 years in IT, in wide range of employers working as a freelance consultant including Finance, Service Providers and Online Companies. He is CCIE#6920 and has a few ideas about the world, but not enough to really count.

He is a host on the Packet Pushers Podcast, blogger at and on Twitter @etherealmind and Google Plus

You can contact Greg via the site contact page.

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