Markdown Version | Session Recording
Session Date/Time: 06 Nov 2024 13:00
# intarea Meeting Minutes
## Summary
The intarea working group meeting covered several important topics, including updates on proxy configurations, ICMP extensions, reverse traceroute, W-pad specifications, multicast port assignments, and MACSec encryption. The discussion focused on clarifying existing drafts, addressing open issues, and determining the direction for future work.
## Key Discussion Points
* **Proxy Configurations (PVD):**
* Discussion on communicating proxy details in JSON format for provisioning domains.
* Parity with PAC files was analyzed, highlighting differences and potential omissions in PVD configurations.
* Debated including proxy authentication hints in the PVD configuration. Consensus leaned towards excluding it for now, possibly addressing it in a separate draft.
* Addressed concerns about very long lists of match and exclude domains in PVD JSON and how clients should handle them.
* **ICMP Extensions:**
* Discussion on clarifying existing ICMP probing extensions due to implementation inconsistencies.
* Considered adoption of a draft fixing unclear text in ICMP extensions, specifically around checksum calculation and data inclusion.
* Presentation on extending node ID using ICMP extensions, including adding IP address and name sub-objects.
* Discussion on adding configurable security considerations to the draft, especially regarding CELAT translators.
* **Reverse Traceroute:**
* Discussion on using ICMP for reverse traceroute signaling.
* Two main options: ICMP Echo vs. Extended Echo.
* Concerns raised about compatibility with legacy middleboxes and the impact of using new ICMP types.
* Discussion on stateless vs. stateful server implementations, with a suggestion to allow implementations to decide.
* **Updated W-pad Specification:**
* Discussion on the new iteration of the W-pad spec and ways to make it less dangerous.
* Added URN to explicitly state that there is no proxy on the network
* **Multicast Port Assignments:**
* Proposal to assign a UDP port specifically for multicast applications.
* Discussion about security implications, especially regarding the reuse add or flag, and potential differences in usage between ASM and SSM.
* Concerns about port number ranges that were already assigned.
* Direction to work with TSVWG and the IANA port team on assigning the ports.
* **MACSec Encryption:**
* Discussion on modifying MACSec engines for various transport types (MPLS, SRv6) by programming authentication and encryption offsets.
* Highlighting the need for a new Security Channel Identifier (SCI) for IP and MPLS domains.
* The potential move the key distribution MKA, to the IP domain.
* Simultaneous progression with the IEEE was encouraged to align with the design.
## Decisions and Action Items
* **ICMP Extensions:** The chairs will add the ICMP extension clarification draft to the list for an adoption call.
* **ICMP Extensions (Node ID):** The authors will update the draft based on feedback, particularly concerning security considerations and the inclusion of IP address and name sub-objects.
* **Reverse Traceroute:** Authors to add ipv6 testing and scenarios, to to-do list.
* **Multicast Port Assignments:** Authors to look for port ranges that have not been assigned yet. Authors to work with TSVWG and the IANA port team on assigning the ports.
* **MACSec Encryption:** Authors to work with the IEEE to document the data flows and look at addressing the use of IPv6 addresses.
## Next Steps
* Adoption call for the ICMP extension clarification draft.
* Continued discussion on the mailing list regarding the open issues on all drafts presented.
* Updates to drafts based on feedback received during the meeting.