GeneRic Autonomic Signaling Protocol draft-ietf-anima-grasp-08 1 GeneRic Autonomic Signaling Protocol draft-ietf-anima-grasp-08 Brian Carpenter (editor) Bing Liu (editor) Carsten Bormann IETF 97 November 2016 1 1 1

Topics Main changes since draft-carpenter-anima-gdn-protocol-06 and WGLC Status of prototype code Open issues Discussion, next steps

Main Changes (1) Added TTL field to Flood message draft-ietf-anima-grasp-07 (before WGLC): Added TTL field to Flood message Added Locator option to Flood and Discovery Response messages Added description of limited security GRASP instances Other clarifications and editorial improvements

Main Changes (2) draft-ietf-anima-grasp-08 (after WGLC): Added M_INVALID message (and short discussion of extensibility) Increased Session ID to 32 bits More rules to avoid Session ID clashes Corrected explanation of port used for Discovery Response Note that Discovery message could be sent unicast in special cases Specified default maxium message size 4

Main Changes (3) draft-ietf-anima-grasp-08 (after WGLC): Corrected and completed description of timeouts for Request messages Improved wording on exponential backoff and DoS Clarified that discovery relaying is not done by limited security instances Added example messages (appendix) Added some explanatory text Editorial improvements 5

Python prototype Updated for all recent changes Portable between Windows 7 and Linux Two toy ASAs to test negotiation across the network, Briggs.py and Gray.py Also used to model usage for draft-ietf-anima- bootstrapping-keyinfra https://www.cs.auckland.ac.nz/~brian/graspy/ 6

Open Issues No technical issues known Normative reference to informative draft (CDDL). Needs to be fixed before RFC publication

Discussion + next steps GRASP Protocol Ready for the IESG? Continue the GRASP API work while GRASP is stable draft-liu-anima-grasp-api-02 Consider updating the other prototype (C language coded, independent with Brian’s python prototype) https://github.com/liubingpang/IETF-Anima-Signaling-Protocol