| 4450 | Getting Rid of the Cruft: Report from an Experiment in Identifying and Reclassifying Obsolete Standards DocumentsE. Lear, H. Alvestrand | Informational | March 2006 |
| 3790 | Survey of IPv4 Addresses in Currently Deployed IETF Internet Area Standards Track and Experimental DocumentsC. Mickles, Ed., P. Nesser, II | Informational | June 2004 |
| 3518 | Point-to-Point Protocol (PPP) Bridging Control Protocol (BCP)M. Higashiyama, F. Baker, T. Liao | Proposed Standard | April 2003 |
| 3153 | PPP MultiplexingR. Pazhyannur, I. Ali, C. Fox | Proposed Standard | August 2001 |
| 3078 | Microsoft Point-To-Point Encryption (MPPE) ProtocolG. Pall, G. Zorn | Informational | March 2001 |
| 2989 | Criteria for Evaluating AAA Protocols for Network AccessB. Aboba, P. Calhoun, S. Glass, T. Hiller, P. McCann, H. Shiino, P. Walsh, G. Zorn, G. Dommety, C. Perkins, B. Patil, D. Mitton, S. Manning, M. Beadles, X. Chen, S. Sivalingham, A. Hameed, M. Munson, S. Jacobs, B. Lim, B. Hirschman, R. Hsu, H. Koo, M. Lipford, E. Campbell, Y. Xu, S. Baba, E. Jaques | Informational | November 2000 |
| 2878 | PPP Bridging Control Protocol (BCP)M. Higashiyama, F. Baker · obsoleted by RFC 3518 | Proposed Standard | July 2000 |
| 2823 | PPP over Simple Data Link (SDL) using SONET/SDH with ATM-like framingJ. Carlson, P. Langner, E. Hernandez-Valencia, J. Manchester | Experimental | May 2000 |
| 2716 | PPP EAP TLS Authentication ProtocolB. Aboba, D. Simon · obsoleted by RFC 5216 | Experimental | October 1999 |
| 2484 | PPP LCP Internationalization Configuration OptionG. Zorn | Proposed Standard | January 1999 |
| 2419 | The PPP DES Encryption Protocol, Version 2 (DESE-bis)K. Sklower, G. Meyer | Proposed Standard | September 1998 |
| 1993 | PPP Gandalf FZA Compression ProtocolA. Barbir, D. Carr, W. Simpson | Informational | August 1996 |
| 1990 | The PPP Multilink Protocol (MP)K. Sklower, B. Lloyd, G. McGregor, D. Carr, T. Coradetti | Draft Standard | August 1996 |
| 1979 | PPP Deflate ProtocolJ. Woods | Informational | August 1996 |
| 1977 | PPP BSD Compression ProtocolV. Schryver | Informational | August 1996 |
| 1976 | PPP for Data Compression in Data Circuit-Terminating Equipment (DCE)K. Schneider, S. Venters | Informational | August 1996 |
| 1969 | The PPP DES Encryption Protocol (DESE)K. Sklower, G. Meyer · obsoleted by RFC 2419 | Informational | June 1996 |
| 1963 | PPP Serial Data Transport Protocol (SDTP)K. Schneider, S. Venters | Informational | August 1996 |
| 1717 | The PPP Multilink Protocol (MP)K. Sklower, B. Lloyd, G. McGregor, D. Carr · obsoleted by RFC 1990 | Proposed Standard | November 1994 |
| 1662 | PPP in HDLC-like FramingW. Simpson, Ed. | Internet Standard | July 1994 |
| 1638 | PPP Bridging Control Protocol (BCP)F. Baker, R. Bowen · obsoleted by RFC 2878 | Proposed Standard | June 1994 |