Session Date/Time: 08 Nov 2022 16:30

dhc

Summary

The DHCP working group meeting at IETF 115 covered the advancement of DHCPv6 to an Internet Standard, specifically focusing on 8415bis, SRv6 locator distribution via DHCP, and registering self-generated IPv6 addresses. The meeting addressed errata, discussed the removal of deprecated features, and explored new functionalities for DHCPv6.

Key Discussion Points

8415bis (DHCPv6 Internet Standard):
- Addressed all errata and removed iATAs and the server unicast option.
- Discussion on removing background material and text related to unicast transmissions.
- Seeking working group adoption and reviewers. Suresh volunteered to shepherd the document.
SRv6 Locator Distribution via DHCP:
- Presented an updated draft introducing a new IA option for SRv6 locators.
- Discussed the need to coordinate with the SPRING working group.
- Consideration needed for scenarios with multiple server responses.
Registering Self-Generated IPv6 Addresses:
- Clarified the sending and receiving of registration messages, including address validation.
- Discussion on the retransmission strategy and whether to use standard DHCP retransmission logic.
- Debate on whether the DHCP server should mark registered addresses as unavailable.
- Discussion around unicast vs multicast usage.

Decisions and Action Items

8415bis:
- Remove background material, unicast-related text, and deprecate the multicast status code.
- Publish 01 version incorporating IANA feedback and working group adoption feedback.
- ACTION: Participants to review and provide feedback on the document during the adoption call.
SRv6 Locator Distribution via DHCP:
- ACTION: Authors to engage with the SPRING working group to gauge interest and coordinate efforts.
- ACTION: Authors to add text describing behavior when multiple servers respond.
Registering Self-Generated IPv6 Addresses:
- ACTION: Working Group to respond with interest in adopting the document
- ACTION: Authors to consider:
  - Including acknowledgment messages
  - Potentially switching to TCP for communication and potentially replacing registration messages with an info request
  - Whether the DHCP server should mark registered addresses as unavailable or delete the records on "release"
  - Whether switches can send the message on behalf of clients

Next Steps

Initiate working group adoption calls for both the 8415bis and the IPv6 address registration drafts on the mailing list.
Authors to revise their respective drafts based on the feedback received during the meeting.
Coordinate with the SPRING working group regarding the SRv6 locator distribution draft.