Books by Silvia Hagen

My latest book was published by Sunny Edition in May 2022. In terms of content, it surfs through some stations in my life that have shaped me and in which challenges I have developed my talents and strengths, which I  successfully apply in my work.

This book is now also available in English as print or ebook on all online and physical bookstores internationally.
Here you can find more information on the German edition.

The Magic beyond Form – A Journey of Discovery

Author Silvia Hagen
1st edition, June 2023
published by Sunny Edition
Print ISBN 978-3-9522942-9-1
eBook ISBN 978-3-9522942-4-6

A book about courage. The courage to look at things in life from different perspectives. To combine spirituality and science. To take a closer look at and fathom the collective consciousness that influences each individual, but also companies.

At the age of two and a half, a world breaks down for Silvia Hagen. Due to a tragic accident, she finds herself facing the ruins of her previous life. This planet is not for her. Pain, isolation and the feeling of not belonging here characterize her everyday life.

But then – at the age of 20 – she takes a decision and her whole life changes. She finds a way out of the victim role to more awareness and personal responsibility. This opens the way to her real calling in organizational and consciousness development.

This work takes everyone who is faced with supposedly unsolvable tasks in life, whether in the private or professional sphere, on a journey. It shakes awake and challenges to dare the leap into a new consciousness.

This book is a great inspiration for everyone that wishes to make the best of his life and potential. No matter where you are today, everything is possible.

On my Youtube channel you can find an interview (in German), a conversation about the making of the book and its contents.

The book can be purchased at any official bookstore – in English and in German.

Order online: (Print on Demand, delivery may a few days, depending on where you are ordering from)

  • Barnes&Noble
  • it will take some time until all international online stores update their lists
  • Amazon (Link to English Edition will follow soon)

How we look at things affects how they show up.” This sentence from Silvia Hagen’s autobiographical journey of discovery resonated as I finished reading and closed the book at 3am. Silvia is a recognized network and IT (IPv6) expert, founder of the Swiss Sunny Connection AG, and describes her development to an integral organizational developer Read more

Not everything can be explained, but if it helps, it is good.” In a beautiful way the author manages to combine the lightness of life dance in a mixture of autobiography and science to present resulting attitude and mindset. The Magic beyond Form is a work that is a wonderful invitation for the reader to recognize himself as a creator of Read more

Books on IPv6 from Silvia Hagen

For a sustainable planning and implementation, but also for discussions with partners, vendors and consultants, it is important to have a good understanding of the base technology. It helps to ask the right questions and find out if the discussion partner knows what he is talking about. In addition to trainings, the following books can help.

IPv6 – Grundlagen, Funktionalität, Integration

Author Silvia Hagen
3rd edition, May 2016
published by Sunny Edition
Print ISBN 978-3-9522942-3-9
eBook ISBN 978-3-9522942-8-4

This german book by networking specialist Silvia Hagen is targeted at IT managers, architects, network, system and security engineers and application developers that are interested in learning the essentials about IPv6. Silvia Hagen explains how the protocol is designed, discusses the new developments and describes scenarios, about how IPv6 can be introduced into our IPv4 networks. You learn why early planning is essential and what you can do for a smooth implementation. Topics like Mobile IPv6, DHCPv6, SLAAC, Routing and Security are discussed.

This 3rd edition in 2014 has been updated with all changes and extensions since the publication of the 2nd edition in 2009. It is the german pendant to O’Reilly’s IPv6 Essentials and can also be used as courseware.

Detailed content list

IPv6 Essentials, O’Reilly – the english version

Author Silvia Hagen
3rd edition, June 2014
published by O’Reilly & Associates
Print book ISBN 978- 1-4493-1921-2
eBook ISBN 978-1-44933524-3

This book describes IPv6 with all the new features and extensions. It is targeted at a broad range of professionals, who want to understand the base technology of IPv6 well. Whether you are an IT manager, an architect, a network, system or security engineer, or an application developer, in this book you find the essentials about IPv6, that help you to deepen your understanding. With this understanding you can to position IPv6 in your strategy, design a future architecture, plan for a meaningful roadmap for integration and manage the implementation. Topics like the new IPv6 header, DHCPv6, SLAAC (autoconfiguration) and Neighbor Discovery, IPv6 Routing, Security and Integration are discussed.

Sample Chapter 2

Planning for IPv6, O’Reilly – the book for CEO’s, CFO’s, IT managers and architects

Author Silvia Hagen
First edition, September 2011
published by O’Reilly & Associates
Print book ISBN: 978-1449305390

It’s official: The global pool of IPv4 network addresses ran out in February 2011. The performance of IPv4 in the Internet is decreasing due to the lack of addresses. Per January 2018 approximately 22% of global Internet Users use IPv6 (this equals more than 840 Mio. users). Approximately 25% of global Top Alexa 1000 sites offer their content dual-stack. Moving to IPv6 is now business critical. This concise book helps you plan for IPv6 integration by providing a high-level overview of the technical—and nontechnical—steps involved. Many of the challenges for your enterprise are on the organizational level, and solutions differ from company to company.

IPv6 Essentials author Silvia Hagen, a protocol analysis expert who’s worked with IPv6 international customers, groups and forums for 15 years, supplies answers to the issues most frequently discussed by the clients she consults. With this guide, IPv6 project leaders and planning team members learn how to develop a cohesive integration strategy for building the next-generation network.


  • Make a business case by focusing on the opportunities IPv6 offers
  • Create a high level design and conduct a network assessment
  • Develop a plan for evaluating vendors and products, and building labs and testing
  • Understand routing protocol choices, security designs, and DNS issues
  • Discover how to create an IPv6 address plan and manage IPv6 addresses
  • Learn the available integration and transition technologies, and the scenarios they cover

Detailed content list