| 927 | TACACS user identification Telnet optionB.A. Anderson | Proposed Standard | December 1984 |
| 1334 | PPP Authentication ProtocolsB. Lloyd, W. Simpson · obsoleted by RFC 1994 | Proposed Standard | October 1992 |
| 1492 | An Access Control Protocol, Sometimes Called TACACSC. Finseth | Informational | July 1993 |
| 1661 | The Point-to-Point Protocol (PPP)W. Simpson, Ed. | Internet Standard | July 1994 |
| 1968 | The PPP Encryption Control Protocol (ECP)G. Meyer | Proposed Standard | June 1996 |
| 1994 | PPP Challenge Handshake Authentication Protocol (CHAP)W. Simpson | Draft Standard | August 1996 |
| 2119 | Key words for use in RFCs to Indicate Requirement LevelsS. Bradner | Best Current Practice | March 1997 |
| 2284 | PPP Extensible Authentication Protocol (EAP)L. Blunk, J. Vollbrecht · obsoleted by RFC 3748 | Proposed Standard | March 1998 |
| 2409 | The Internet Key Exchange (IKE)D. Harkins, D. Carrel · obsoleted by RFC 4306 | Historic | November 1998 |
| 2419 | The PPP DES Encryption Protocol, Version 2 (DESE-bis)K. Sklower, G. Meyer | Proposed Standard | September 1998 |
| 2420 | The PPP Triple-DES Encryption Protocol (3DESE)H. Kummert | Proposed Standard | September 1998 |
| 2433 | Microsoft PPP CHAP ExtensionsG. Zorn, S. Cobb | Informational | October 1998 |
| 2548 | Microsoft Vendor-specific RADIUS AttributesG. Zorn | Informational | March 1999 |
| 2637 | Point-to-Point Tunneling Protocol (PPTP)K. Hamzeh, G. Pall, W. Verthein, J. Taarud, W. Little, G. Zorn | Informational | July 1999 |
| 2716 | PPP EAP TLS Authentication ProtocolB. Aboba, D. Simon · obsoleted by RFC 5216 | Experimental | October 1999 |
| 2759 | Microsoft PPP CHAP Extensions, Version 2G. Zorn | Informational | January 2000 |
| 2865 | Remote Authentication Dial In User Service (RADIUS)C. Rigney, S. Willens, A. Rubens, W. Simpson | Draft Standard | June 2000 |
| 2881 | Network Access Server Requirements Next Generation (NASREQNG) NAS ModelD. Mitton, M. Beadles | Informational | July 2000 |
| 3078 | Microsoft Point-To-Point Encryption (MPPE) ProtocolG. Pall, G. Zorn | Informational | March 2001 |
| 3079 | Deriving Keys for use with Microsoft Point-to-Point Encryption (MPPE)G. Zorn | Informational | March 2001 |
| 3579 | RADIUS (Remote Authentication Dial In User Service) Support For Extensible Authentication Protocol (EAP)B. Aboba, P. Calhoun | Informational | September 2003 |
| 3588 | Diameter Base ProtocolP. Calhoun, J. Loughney, E. Guttman, G. Zorn, J. Arkko · obsoleted by RFC 6733 | Proposed Standard | September 2003 |
| 3748 | Extensible Authentication Protocol (EAP)B. Aboba, L. Blunk, J. Vollbrecht, J. Carlson, H. Levkowetz, Ed. | Proposed Standard | June 2004 |
| 3766 | Determining Strengths For Public Keys Used For Exchanging Symmetric KeysH. Orman, P. Hoffman | Best Current Practice | April 2004 |
| 4017 | Extensible Authentication Protocol (EAP) Method Requirements for Wireless LANsD. Stanley, J. Walker, B. Aboba | Informational | March 2005 |
| 4072 | Diameter Extensible Authentication Protocol (EAP) ApplicationP. Eronen, Ed., T. Hiller, G. Zorn | Proposed Standard | August 2005 |
| 4306 | Internet Key Exchange (IKEv2) ProtocolC. Kaufman, Ed. · obsoleted by RFC 5996 | Proposed Standard | December 2005 |