%% You should probably cite rfc2867 instead of this I-D. @techreport{ietf-radius-tunnel-acct-04, number = {draft-ietf-radius-tunnel-acct-04}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ietf-radius-tunnel-acct/04/}, author = {Dr. Bernard D. Aboba and David Mitton and Glen Zorn}, title = {{RADIUS Accounting Modifications for Tunnel Protocol Support}}, pagetotal = 11, year = 1999, month = aug, day = 23, abstract = {This document defines new RADIUS (Remote Authentication Dial In User Service) accounting Attributes and new values for the existing Acct- Status-Type Attribute designed to support the provision of compulsory tunneling in dial-up networks. This memo provides information for the Internet community.}, }