| 1234 | Tunneling IPX traffic through IP networksD. Provan | Historic | June 1991 |
| 1701 | Generic Routing Encapsulation (GRE)S. Hanks, T. Li, D. Farinacci, P. Traina | Informational | October 1994 |
| 1702 | Generic Routing Encapsulation over IPv4 networksS. Hanks, T. Li, D. Farinacci, P. Traina | Informational | October 1994 |
| 2003 | IP Encapsulation within IPC. Perkins | Proposed Standard | October 1996 |
| 2004 | Minimal Encapsulation within IPC. Perkins | Proposed Standard | October 1996 |
| 2107 | Ascend Tunnel Management Protocol - ATMPK. Hamzeh | Informational | February 1997 |
| 2341 | Cisco Layer Two Forwarding (Protocol) "L2F"A. Valencia, M. Littlewood, T. Kolar | Historic | May 1998 |
| 2529 | Transmission of IPv6 over IPv4 Domains without Explicit TunnelsB. Carpenter, C. Jung | Proposed Standard | March 1999 |
| 2637 | Point-to-Point Tunneling Protocol (PPTP)K. Hamzeh, G. Pall, W. Verthein, J. Taarud, W. Little, G. Zorn | Informational | July 1999 |
| 2661 | Layer Two Tunneling Protocol "L2TP"W. Townsley, A. Valencia, A. Rubens, G. Pall, G. Zorn, B. Palter | Proposed Standard | August 1999 |
| 3056 | Connection of IPv6 Domains via IPv4 CloudsB. Carpenter, K. Moore | Proposed Standard | February 2001 |
| 3618 | Multicast Source Discovery Protocol (MSDP)B. Fenner, Ed., D. Meyer, Ed. | Experimental | October 2003 |
| 3688 | The IETF XML RegistryM. Mealling | Best Current Practice | January 2004 |
| 4087 | IP Tunnel MIBD. Thaler | Proposed Standard | June 2005 |
| 4213 | Basic Transition Mechanisms for IPv6 Hosts and RoutersE. Nordmark, R. Gilligan | Proposed Standard | October 2005 |
| 4380 | Teredo: Tunneling IPv6 over UDP through Network Address Translations (NATs)C. Huitema | Proposed Standard | February 2006 |
| 5214 | Intra-Site Automatic Tunnel Addressing Protocol (ISATAP)F. Templin, T. Gleeson, D. Thaler | Informational | March 2008 |
| 5565 | Softwire Mesh FrameworkJ. Wu, Y. Cui, C. Metz, E. Rosen | Proposed Standard | June 2009 |
| 6241 | Network Configuration Protocol (NETCONF)R. Enns, Ed., M. Bjorklund, Ed., J. Schoenwaelder, Ed., A. Bierman, Ed. | Proposed Standard | June 2011 |
| 6242 | Using the NETCONF Protocol over Secure Shell (SSH)M. Wasserman | Proposed Standard | June 2011 |
| 6333 | Dual-Stack Lite Broadband Deployments Following IPv4 ExhaustionA. Durand, R. Droms, J. Woodyatt, Y. Lee | Proposed Standard | August 2011 |
| 6346 | The Address plus Port (A+P) Approach to the IPv4 Address ShortageR. Bush, Ed. | Experimental | August 2011 |
| 6991 | Common YANG Data TypesJ. Schoenwaelder, Ed. · obsoleted by RFC 9911 | Proposed Standard | July 2013 |
| 7224 | IANA Interface Type YANG ModuleM. Bjorklund | Proposed Standard | May 2014 |
| 7676 | IPv6 Support for Generic Routing Encapsulation (GRE)C. Pignataro, R. Bonica, S. Krishnan | Proposed Standard | October 2015 |
| 7841 | RFC Streams, Headers, and BoilerplatesJ. Halpern, Ed., L. Daigle, Ed., O. Kolkman, Ed. | Informational | May 2016 |
| 7856 | Softwire Mesh Management Information Base (MIB)Y. Cui, J. Dong, P. Wu, M. Xu, A. Yla-Jaaski | Proposed Standard | May 2016 |
| 7870 | Dual-Stack Lite (DS-Lite) Management Information Base (MIB) for Address Family Transition Routers (AFTRs)Y. Fu, S. Jiang, J. Dong, Y. Chen | Proposed Standard | June 2016 |
| 7950 | The YANG 1.1 Data Modeling LanguageM. Bjorklund, Ed. | Proposed Standard | August 2016 |
| 8040 | RESTCONF ProtocolA. Bierman, M. Bjorklund, K. Watsen | Proposed Standard | January 2017 |
| 8085 | UDP Usage GuidelinesL. Eggert, G. Fairhurst, G. Shepherd | Best Current Practice | March 2017 |
| 8340 | YANG Tree DiagramsM. Bjorklund, L. Berger, Ed. | Best Current Practice | March 2018 |
| 8341 | Network Configuration Access Control ModelA. Bierman, M. Bjorklund | Internet Standard | March 2018 |
| 8342 | Network Management Datastore Architecture (NMDA)M. Bjorklund, J. Schoenwaelder, P. Shafer, K. Watsen, R. Wilton | Proposed Standard | March 2018 |
| 8343 | A YANG Data Model for Interface ManagementM. Bjorklund | Proposed Standard | March 2018 |
| 8446 | The Transport Layer Security (TLS) Protocol Version 1.3E. Rescorla · obsoleted by RFC 9846 | Proposed Standard | August 2018 |
| 8676 | YANG Modules for IPv4-in-IPv6 Address plus Port (A+P) SoftwiresI. Farrer, Ed., M. Boucadair, Ed. | Proposed Standard | November 2019 |