The ISP Column
An occasional column on things Internet
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A Tale of Two Protocols: IPv4, IPv6, MTUs and Fragmentation
January 2009

Geoff Huston

The Environment

The Observed Problem


Why is this happening?

What's the answer?

How to create a Reliable Dual Stack Environment


The above views do not necessarily represent the views of the Asia Pacific Network Information Centre.

About the Author

GEOFF HUSTON holds a B.Sc. and a M.Sc. from the Australian National University. He has been closely involved with the development of the Internet for many years, particularly within Australia, where he was responsible for the initial build of the Internet within the Australian academic and research sector. He is author of a number of Internet-related books, and is currently the Chief Scientist at APNIC, the Regional Internet Registry serving the Asia Pacific region. He was a member of the Internet Architecture Board from 1999 until 2005, and served on the Board of the Internet Society from 1992 until 2001.