Episode 22: IPv6 Subnetting and Address Planning
While IPv6 offers a massive address space, subnetting is still necessary for organizing networks and managing routing efficiently. In this episode, we introduce how subnetting works in IPv6 and explain why it’s simpler than IPv4 in many respects. You’ll learn how to break up a /64 into smaller subnets, how hexadecimal math works in address planning, and what considerations apply when assigning subnets across sites. We also compare IPv6 subnetting strategies to those used with IPv4, highlighting where the logic overlaps and where it differs.
We explain how to use common planning practices, including nibble boundaries and standard notations, to keep IPv6 structured and readable. This is essential for enterprise deployments, especially in environments that support both IPv4 and IPv6. By the end of this episode, you’ll have a solid understanding of how to design and document IPv6 subnetting for modern networks. It’s a skill that will become more critical as IPv6 adoption continues to grow.
