Silvia Hagen

IPv6 expert, consultant, trainer and author, chair of Swiss IPv6 Council, agile coach

  • @sunny_shagen

Maur, Switzerland

Areas of Expertise:

  • IPv6 consulting
  • IPv6 education Network- and application-performance analysis application profiling business agility
  • consulting
  • speaking
  • training
  • writing
Silvia Hagen is the author of the successful book "IPv6 Essentials" published by O'Reilly. She is owner and CEO of the Swiss Consulting and Education company Sunny Connection (, which is specialized in IPv6, network and application performance troubleshooting and IPv6. She is also co-founder of flowdays, a network of agile coaches. Since more than 15 years she works with IPv6, writes, teaches and consults enterprises in Europe and the US for the integration of IPv6. She is the president of the Swiss IPv6 Council which is a non-profit platform to support the integration of IPv6 in Switzerland. As a result of these activities, Switzerland was the first country to reach a double digit user adoption rate (10% in April 2013) and has therefore received the Jim Bound Award of the International IPv6 Forum for IPv6 World Leadership. In her private time Silvia likes to read, enjoys music and going to concerts, meet friends, be out in nature walking with her dog and gardening. She loves people who think out of the box. For more details and contact information visit her website at and

IPv6 Essentials IPv6 Essentials
by Silvia Hagen
Third Edition June 2014
Print: $39.99
Ebook: $31.99

Planning for IPv6 Planning for IPv6
by Silvia Hagen
September 2011
Print: $26.99
Ebook: $22.99

IPv6 Essentials IPv6 Essentials
by Silvia Hagen
Second Edition May 2006

IPv6 Essentials IPv6 Essentials
by Silvia Hagen
July 2002

"There is something in this book for everyone...As you build your IPv6 library, this book should get an early spot on the shelf."
--Ron Nutter, TechBytes with Ron Nutter

"If you're after a solid technical reference on IPv6, this is certainly a good reference. The writing style makes for easy reading and the book is well laid-out, starting with some history and then working its way up the stack as you progress through."
--Paul Armstrong, ;LOGIN:

"...a well-written, clear, up-to-date guide to understanding IPv6 in-depth...I recommend IPv6 Essentials as an essential reference, and a great starting point for mastering IPv6."
--Carla Schroder,