{"id":115,"date":"2025-11-26T09:52:11","date_gmt":"2025-11-26T09:52:11","guid":{"rendered":"https:\/\/kirandekruijter.be\/?p=115"},"modified":"2026-05-26T09:54:01","modified_gmt":"2026-05-26T09:54:01","slug":"the-inevitable-transition-highlights-from-the-howest-ipv6-dual-stack-meetup","status":"publish","type":"post","link":"https:\/\/kirandekruijter.be\/?p=115","title":{"rendered":"The Inevitable Transition: Highlights from the Howest IPv6 & Dual-Stack Meetup"},"content":{"rendered":"\n

We\u2019ve been hearing about the depletion of IPv4 addresses for years, but the reality is no longer a distant problem\u2014the transition to IPv6 is officially here. While internet service providers (ISPs) and enterprise giants have already made the leap, small and medium-sized enterprises (SMEs) are now embarking on this mandatory migration.<\/p>\n\n\n\n

On November 25th, 2025, Howest hosted a highly practical Tech & Meet<\/strong> evening presentation titled “The Transition to IPv6”<\/strong> to break down exactly how organizations can navigate this shift securely.<\/p>\n\n\n\n

The session was led by none other than Nico Declerck<\/strong>, an experienced network and Linux sysadmin, a researcher in the Howest Cluster IT, and a Cisco Instructor Trainer. Known for his deep technical expertise, Nico managed to make a dense networking topic incredibly engaging by weaving in juicy local anecdotes about the history and beers of Bruges!<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Security by Design in a 128-bit World<\/h3>\n\n\n\n

As a cybersecurity student focused on Governance, Risk, and Compliance (GRC), this session was particularly fascinating. Infrastructure changes of this scale represent a massive pivot point for organizational risk. Implementing IPv6 isn’t just about changing an IP address scheme; it changes how we approach firewall configurations, routing policies, and visibility.<\/p>\n\n\n\n

Nico broke down the evening into three crucial building blocks:<\/p>\n\n\n\n

    \n
  1. Why IPv6 Can No Longer Be Postponed:<\/strong> Understanding the business and technical limitations of clinging to IPv4 (and the messy workarounds like NAT) versus the massive scalability benefits of IPv6.<\/li>\n\n\n\n
  2. Transitioning to IPv6-Only:<\/strong> Exploring future scenarios, strategic risks, and the eventual architectural reality when IPv4 is deprecated entirely.<\/li>\n\n\n\n
  3. Dual Stack in Practice:<\/strong> This was the core technical highlight. Nico showcased real-world configurations, demonstrating how to run IPv4 and IPv6 concurrently (Dual Stack) while maintaining a strict focus on security by design<\/strong> regarding firewalls and routing protocols.<\/li>\n<\/ol>\n\n\n\n

    The GRC Takeaway: Managing the Migration Risk<\/h3>\n\n\n\n

    From a governance perspective, running a “Dual Stack” environment means managing two different network protocols simultaneously. This introduces unique security considerations. If a security team perfectly configures their IPv4 firewall rules but overlooks their IPv6 policies, they accidentally leave a wide-open back door into their network. Nico’s emphasis on a safe, secure, and deliberate transition path highlighted exactly why network administration and cybersecurity compliance must work hand-in-hand.<\/p>\n\n\n\n

    Want to Dig Deeper?<\/h3>\n\n\n\n

    This 1.5-hour evening event offered an excellent high-level glimpse into the road ahead, but the migration itself requires deep, hands-on knowledge. For IT pros and network admins looking to execute this transition seamlessly, Nico also hosts a comprehensive online masterclass titled “Dual Stack IPv6”<\/strong> (in Dutch), which provides the deep-dive training needed to future-proof an organization’s architecture.<\/p>\n\n\n\n

    A huge thanks to Nico Declerck for sharing his expertise, his stories, and reminding us that the future of networking is already running right under our noses!<\/p>\n\n\n\n

    \n

    Is your organization already running Dual Stack, or are you still relying heavily on IPv4? Let\u2019s talk about the hurdles of upgrading legacy infrastructure in the comments below!<\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"

    We\u2019ve been hearing about the depletion of IPv4 addresses for years, but the reality is no longer a distant problem\u2014the transition to IPv6 is officially here. While internet service providers (ISPs) and enterprise giants have already made the leap, small and medium-sized enterprises (SMEs) are now embarking on this mandatory migration. On November 25th, 2025, […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-container-style":"default","site-container-layout":"default","site-sidebar-layout":"default","disable-article-header":"default","disable-site-header":"default","disable-site-footer":"default","disable-content-area-spacing":"default","footnotes":""},"categories":[9],"tags":[],"class_list":["post-115","post","type-post","status-publish","format-standard","hentry","category-techmeet"],"_links":{"self":[{"href":"https:\/\/kirandekruijter.be\/index.php?rest_route=\/wp\/v2\/posts\/115","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kirandekruijter.be\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kirandekruijter.be\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kirandekruijter.be\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kirandekruijter.be\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=115"}],"version-history":[{"count":1,"href":"https:\/\/kirandekruijter.be\/index.php?rest_route=\/wp\/v2\/posts\/115\/revisions"}],"predecessor-version":[{"id":117,"href":"https:\/\/kirandekruijter.be\/index.php?rest_route=\/wp\/v2\/posts\/115\/revisions\/117"}],"wp:attachment":[{"href":"https:\/\/kirandekruijter.be\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=115"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kirandekruijter.be\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=115"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kirandekruijter.be\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=115"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}