{"id":28804,"date":"2025-02-06T15:52:53","date_gmt":"2025-02-06T15:52:53","guid":{"rendered":"https:\/\/blog.lacnic.net\/?p=28804"},"modified":"2025-02-11T15:27:47","modified_gmt":"2025-02-11T15:27:47","slug":"applying-the-new-ipv6-documentation-space-a-practical-approach-3fff-20","status":"publish","type":"post","link":"https:\/\/blog.lacnic.net\/en\/applying-the-new-ipv6-documentation-space-a-practical-approach-3fff-20\/","title":{"rendered":"Applying the New IPv6 Documentation Space: A Practical Approach (3FFF::\/20)"},"content":{"rendered":"\n

By Alejandro Acosta<\/a>, R&D Coordinator, and Julio Buiza<\/a>, Registration Services Specialist, at LACNIC<\/p>\n\n\n\n

<\/a>Introduction<\/u><\/strong><\/strong><\/h1>\n\n\n\n

On 23 July 2024, the IANA reserved 3FFF::\/20<\/strong> as a new dedicated IPv6 address prefix for documentation purposes, thus adding a new block to the existing documentation block (2001:db8::\/32). <\/strong>This request was included in IETF draft https:\/\/datatracker.ietf.org\/doc\/draft-ietf-v6ops-rfc3849-update\/05\/<\/a> as follows:<\/p>\n\n\n\n

\u201cThe document describes the reservation of an additional IPv6 address prefix for use in documentation. This update to RFC 3849 expands on the existing 2001:db8::\/32 address block with the reservation of an additional, larger prefix. The addition of a \/20 allows documented examples to more closely reflect a broader range of realistic, current deployment scenarios and more closely aligns with contemporary allocation models for large networks.\u201d<\/em><\/p>\n\n\n\n

Following this expansion, in this article we will discuss an IPv6 address plan as an example, using address block3FFF::\/20.<\/strong><\/p>\n\n\n\n

<\/a>Importance of an IP Address Plan<\/strong><\/h2>\n\n\n\n

<\/a>What is an IP (v4\/v6) address plan?<\/strong><\/h3>\n\n\n\n

An IP address plan is defined as the form, actions, and systematic model used for assigning IP addresses on a network [1].<\/p>\n\n\n\n

<\/a>Why you should develop an IP address plan<\/strong><\/strong><\/h3>\n\n\n\n

An IP address plan:<\/p>\n\n\n\n