RFC 9926 - Prefix Registration for IPv6 Neighbor Discovery

• Status: Proposed Standard
• Published: February 2026
• Stream: IETF
• Updates: RFC 4861, RFC 6550, RFC 8505, RFC 8928, RFC 9010
• Errata: No Errata

Abstract

RFC 9926 specifies Prefix Registration for IPv6 Neighbor Discovery. It updates RFC 4861, RFC 6550, RFC 8505, RFC 8928, and RFC 9010 so a node can advertise that a registered prefix is reachable through it and, where needed, ask routers to redistribute that prefix in another routing domain.

Contents

• 1. Introduction
• 2. Terminology
• 3. Overview
• 4. Updating RFC 4861
• 5. Updating RFC 7400
• 6. Updating RFC 6550
• 7. Updating RFC 8505
• 8. Updating RFC 9010
• 9. Updating RFC 8928
• 10. Updating RFC 8929
• 11. Security Considerations
• 12. Operational Considerations
• 13. IANA Considerations
• 14. Normative References
• 15. Informative References
• Acknowledgments
• Author's Address

Related Resources

• Official Text: RFC 9926
• Official Page: RFC 9926 DataTracker
• Errata: RFC Editor Errata