| 9260 | Stream Control Transmission ProtocolR. Stewart, M. Tüxen, K. Nielsen | Proposed Standard | June 2022 |
| 9147 | The Datagram Transport Layer Security (DTLS) Protocol Version 1.3E. Rescorla, H. Tschofenig, N. Modadugu | Proposed Standard | April 2022 |
| 7296 | Internet Key Exchange Protocol Version 2 (IKEv2)C. Kaufman, P. Hoffman, Y. Nir, P. Eronen, T. Kivinen | Internet Standard | October 2014 |
| 6347 | Datagram Transport Layer Security Version 1.2E. Rescorla, N. Modadugu · obsoleted by RFC 9147 | Proposed Standard | January 2012 |
| 6013 | TCP Cookie Transactions (TCPCT)W. Simpson · obsoleted by RFC 7805 | Historic | January 2011 |
| 5996 | Internet Key Exchange Protocol Version 2 (IKEv2)C. Kaufman, P. Hoffman, Y. Nir, P. Eronen · obsoleted by RFC 7296 | Proposed Standard | September 2010 |
| 5906 | Network Time Protocol Version 4: Autokey SpecificationB. Haberman, Ed., D. Mills | Informational | June 2010 |
| 5742 | IESG Procedures for Handling of Independent and IRTF Stream SubmissionsH. Alvestrand, R. Housley | Best Current Practice | December 2009 |
| 4960 | Stream Control Transmission ProtocolR. Stewart, Ed. · obsoleted by RFC 9260 | Proposed Standard | September 2007 |
| 4535 | GSAKMP: Group Secure Association Key Management ProtocolH. Harney, U. Meth, A. Colegrove, G. Gross | Proposed Standard | June 2006 |
| 4460 | Stream Control Transmission Protocol (SCTP) Specification Errata and IssuesR. Stewart, I. Arias-Rodriguez, K. Poon, A. Caro, M. Tuexen · obsoleted by RFC 9260 | Informational | April 2006 |
| 4306 | Internet Key Exchange (IKEv2) ProtocolC. Kaufman, Ed. · obsoleted by RFC 5996 | Proposed Standard | December 2005 |
| 4046 | Multicast Security (MSEC) Group Key Management ArchitectureM. Baugher, R. Canetti, L. Dondeti, F. Lindholm | Informational | May 2005 |
| 3932 | The IESG and RFC Editor Documents: ProceduresH. Alvestrand · obsoleted by RFC 5742 | Best Current Practice | October 2004 |
| 3792 | Survey of IPv4 Addresses in Currently Deployed IETF Security Area Standards Track and Experimental DocumentsP. Nesser, II, A. Bergstrom, Ed. | Informational | June 2004 |
| 3650 | Handle System OverviewS. Sun, L. Lannom, B. Boesch | Informational | November 2003 |
| 3552 | Guidelines for Writing RFC Text on Security ConsiderationsE. Rescorla, B. Korver | Best Current Practice | July 2003 |
| 3547 | The Group Domain of InterpretationM. Baugher, B. Weis, T. Hardjono, H. Harney · obsoleted by RFC 6407 | Proposed Standard | July 2003 |
| 2960 | Stream Control Transmission ProtocolR. Stewart, Q. Xie, K. Morneault, C. Sharp, H. Schwarzbauer, T. Taylor, I. Rytina, M. Kalla, L. Zhang, V. Paxson · obsoleted by RFC 4960 | Proposed Standard | October 2000 |
| 2523 | Photuris: Extended Schemes and AttributesP. Karn, W. Simpson | Experimental | March 1999 |