PCP Interim Meeting 7:00 PDT Tuesday 26 August 2014 7:06 PDT Tuesday 26 August 2014 Chairs Slides Three documents published: – pcp-description-option → RFC 7220 – pcp-nat64-prefix64 → RFC 7225 – draft-ietf-pcp-dhcp → RFC 7291 Will be going to IESG shortly: – pcp-server-selection (see next slide) – pcp-port-set (on agenda) Simon Perreault explained recent changes Perhaps improve text explaining need for “First Internal Port” Modify text to say “PREFER_FAILURE MUST NOT appear with PORT_SET” Discussion about whether a reply for a port set of size one should omit the PORT_SET Option. -- 7:40 PDT Tuesday 26 August 2014 PCP Authentication Mechanism draft-ietf-pcp-authentication Dacheng Zhang Discussion of ID-indicator option Is it arbitrary 8-bit data? UTF-8 text? Is the “client” that decides which credentials to present a human, or software? -- 8:00 PDT Tuesday 26 August 2014 Optimizing NAT and Firewall Keepalives draft-ietf-pcp-optimize-keepalives Tiru Reddy Discussion of how PCP Proxy capability in PCP servers would save the client having to discover and communicate with every NAT and Firewall on the path. -- 8:05 PDT Tuesday 26 August 2014 PCP Tunnel-ID Option draft-ripke-pcp-tunnel-id-option Andreas Ripke (10 mins) Stuart Cheshire: Examples of actual real-world usage of subscriber portals for PCP port allocation would help motivate this -- 8:24 PDT Tuesday 26 August 2014 Flow high availability through PCP draft-vinapamula-flow-ha Suresh Vinapamula (10 mins) What does PREFER_FAILURE do? Is it a being used to signal TRY_HARDER? Yes. Perhaps a priority level field in the option would signal this better. Add mention in Security Considerations that this may give a hint to MITM attackers about which flows might be worth attacking. -- 8:40 PDT Tuesday 26 August 2014 (U)SIM based PCP authentication draft-chen-pcp-authentication-sim Gang Chen (10 mins) Dave Thaler: Does this affect the base authentication document? If so, we need to address that before the base authentication document is published. -- 8:54 PDT Tuesday 26 August 2014 PCP Extensions for Footprint Discovery (no draft) Brent Hirschman (10 mins) Dave Thaler: Next step would be to submit an Internet Draft describing the problem statement and proposed solution and start discussions on the mailing list. 9:08 PDT Tuesday 26 August 2014 Meeting end