IETF

IETF Interim: Stub Network Auto Configuration for IPv6 (SNAC) 2026-04-16 13:00

The interim SNAC meeting focused on clearing the path to a last‑call for the IPv6 Stub Network Auto‑Configuration draft. Participants debated the role of the state machine, concluding it must remain informative and be relocated to an appendix, thereby preventing normative conflicts that plagued earlier DHCP work. Key discussion points included verifying that the remaining normative text fully describes required behavior once the state machine is removed, and addressing lingering open items such as handling multiple AIL interfaces and updating reference classifications from normative to informative. The group also examined a pull request concerning ULA link‑prefix stability, noting the need to tighten language around "should" statements and provide clearer exception criteria. Consensus emerged that the draft is ready for a final review, provided the state‑machine appendix is added and any residual normative gaps are patched. The team agreed to announce the decision on the mailing list, allowing a brief comment period before proceeding to the formal last‑call. If these steps are followed, the SNAC specification will advance toward publication, offering implementers a clearer, more stable framework for IPv6 stub‑network deployments.