Dear EMU WG: These two documents are in the RFC Editor queue:
draft-cam-winget-eap-fast-provisioning-10.txt draft-zhou-emu-fast-gtc-05.txt The IESG has received a very late comment about these documents, and we seek your input on the proposed resolution. The late comment raises a potential interoperability concern with existing implementations of EAP-MSCHAPv2 and EAP-GTC. The draft-cam-winget-eap-fast-provisioning-10.txt document specifies a very specific way to generate the challenges used in EAP-MSCHAPv2 that provides binding between the EAP-FAST tunnel and the EAP-MSCHAPv2 exchanges. The draft-zhou-emu-fast-gtc-05.txt describes EAP-FAST-GTC, which is uses EAP Type 6, originally allocated to EAP-GTC [RFC3748]. EAP-FAST-GTC employs a subset of the EAP-GTC formatting. The IESG recognizes the difficulties caused by re-use of an EAP Type. Further, the IESG recognizes the concern about implementations that might not easily adapt to additional requirements. However, the IESG also recognizes the significant value in documenting EAP methods that are implemented and deployed in the Internet today. The IESG believes that the right thing to do in this situation is to proceed with the publication of these documents. However, the IESG also sees value in warning future EAP method designers about this experience so that this pain might be avoided in the future. The IESG is considering the additional informative paragraph in the IANA considerations section of both documents that says: IESG Note: EAP-FAST has been implemented by many vendors and it is used in the Internet. Publication of this is intended to promote interoperability, even though the use of the EAP-MSCHAPv2 and EAP-FAST-GTC EAP methods might be difficult in some software environments. If EAP-FAST were to be designed today, these difficulties could be avoided by the assignment of new EAP Type codes. Please provide comments on the proposed way forward. On behalf of the IESG, Russ _______________________________________________ Emu mailing list Emu@ietf.org https://www.ietf.org/mailman/listinfo/emu