The IESG has approved the following document: - 'Data Types in the Remote Authentication Dial-In User Service Protocol (RADIUS)' (draft-ietf-radext-datatypes-08.txt) as Proposed Standard This document is the product of the RADIUS EXTensions Working Group. The IESG contact persons are Benoit Claise, Kathleen Moriarty and Joel Jaeggli. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-radext-datatypes/ Technical Summary RADIUS specifications have used data types for two decades without defining them as managed entities. During this time, RADIUS implementations have named the data types, and have used them in attribute definitions. This document updates the specifications to better follow established practice. We do this by naming the data types defined in RFC 6158, which have been used since at least RFC 2865. We provide an IANA registry for the data types, and update the RADIUS Attribute Type registry to include a "Data Type" field for each attribute. Finally, we recommend that authors of RADIUS specifications use these types in preference to existing practice. Working Group Summary This document has received many iterations of review by almost all active participants. There is a broad consensus that this type of document is needed. A number of specifications in the queue are waiting for this RFC to exist so that they have a stable point of reference. Document Quality The document has overall gotten sufficient review. One small area of concern for the Shepherd is the long list of attributes and their retrofitted datatypes in section 4.2: this was a signficant amount of legwork for the author, and this kind of work is prone to errors. Even though the working group reviewed the document as such, it can't be expected that all of them did the cross-reference legwork to look up all attributes and their datatypes in the original RFCs. Nevertheless, the document is ready for the publication process: IETF Last Call should motivate the community at large to at least check the attributes of concern for them and find corresponding errors if any. Personnel The Document Shepherd is Stefan Winter. The responsible Area Director is Kathleen Moriarty. IANA Note This draft establishes a new RADIUS registry that requires IETF review to add entries. This draft also updates the RADIUS Attribute Type Registry.