Senior Network Consultant & IPv6 Architect
CCIE #1561 - Enterprise Networking, IPv6 Migration & Zero Trust
I help enterprises, government organizations and complex IT environments modernize their network infrastructure, migrate to IPv6 and build secure, future-ready architectures.
Freelancer, Consultant, Engineer, Instructor, Troubleshooter, Finetuner, IT-Architect
What I Do
IPv6 Migration
Design, planning and technical guidance for IPv6 introduction in existing enterprise and government networks.
Zero Trust Networking
Architecture and implementation guidance for segmentation, identity-based access and secure network modernization.
Enterprise Network Consulting
Deep technical analysis, troubleshooting and architecture review for complex Cisco-based infrastructures.
Why Work With Me?
I am a long-time networking expert with more than three decades of international
experience in IT consulting and training.
My CCIE number is
1561.
I passed the CCIE lab in 1995,
when CCIE numbers were still extremely rare worldwide.
For more than 22 years I conducted world-renowned CCIE Bootcamps and prepared engineers from many countries for one of the most demanding certifications in the networking industry.
- Quote reported from Cisco Networkers / Cisco Live context
International Experience
My projects and teachings took place in 27 countries on 4 continents, including:
USA (8 years), Australia, Austria, Bahrain, Belgium, Denmark, Dubai, Egypt, France, Germany, India, Greenland, Italy, Mozambique, Netherlands, Norway, Oman, Poland, Qatar, Romania, Saudi Arabia, Serbia, Slovakia, Spain, Sweden, Switzerland, Turkey, United Kingdom and USSR.
My Bootcamp students came from more than 74 countries.
Current Focus
IPv6 Readiness
From IPv4 legacy environments to scalable, secure and operationally realistic IPv6 architectures.
Architecture Review
Independent senior-level review of existing network designs, migration plans and security concepts.
Management Support
Translating complex technical risks into clear decision papers for management, project leadership and stakeholders.
Book Publication
January 2026: I am co-author of the book Voice over IPv6, published by VDE-Verlag.
Experience is cheaper than downtime.
If your organization is planning IPv6, Zero Trust or a complex network modernization project, I can help you design it properly.