| 2119 | Key words for use in RFCs to Indicate Requirement LevelsS. Bradner | Best Current Practice | March 1997 |
| 3314 | Recommendations for IPv6 in Third Generation Partnership Project (3GPP) StandardsM. Wasserman, Ed. | Informational | September 2002 |
| 3315 | Dynamic Host Configuration Protocol for IPv6 (DHCPv6)R. Droms, Ed., J. Bound, B. Volz, T. Lemon, C. Perkins, M. Carney · obsoleted by RFC 8415 | Proposed Standard | July 2003 |
| 3456 | Dynamic Host Configuration Protocol (DHCPv4) Configuration of IPsec Tunnel ModeB. Patel, B. Aboba, S. Kelly, V. Gupta | Proposed Standard | January 2003 |
| 3633 | IPv6 Prefix Options for Dynamic Host Configuration Protocol (DHCP) version 6O. Troan, R. Droms · obsoleted by RFC 8415 | Proposed Standard | December 2003 |
| 3810 | Multicast Listener Discovery Version 2 (MLDv2) for IPv6R. Vida, Ed., L. Costa, Ed. · obsoleted by RFC 9777 | Proposed Standard | June 2004 |
| 3884 | Use of IPsec Transport Mode for Dynamic RoutingJ. Touch, L. Eggert, Y. Wang | Informational | September 2004 |
| 3972 | Cryptographically Generated Addresses (CGA)T. Aura | Proposed Standard | March 2005 |
| 4193 | Unique Local IPv6 Unicast AddressesR. Hinden, B. Haberman | Proposed Standard | October 2005 |
| 4291 | IP Version 6 Addressing ArchitectureR. Hinden, S. Deering | Draft Standard | February 2006 |
| 4306 | Internet Key Exchange (IKEv2) ProtocolC. Kaufman, Ed. · obsoleted by RFC 5996 | Proposed Standard | December 2005 |
| 4389 | Neighbor Discovery Proxies (ND Proxy)D. Thaler, M. Talwar, C. Patel | Experimental | April 2006 |
| 4478 | Repeated Authentication in Internet Key Exchange (IKEv2) ProtocolY. Nir | Experimental | April 2006 |
| 4555 | IKEv2 Mobility and Multihoming Protocol (MOBIKE)P. Eronen | Proposed Standard | June 2006 |
| 4718 | IKEv2 Clarifications and Implementation GuidelinesP. Eronen, P. Hoffman · obsoleted by RFC 5996 | Informational | October 2006 |
| 4861 | Neighbor Discovery for IP version 6 (IPv6)T. Narten, E. Nordmark, W. Simpson, H. Soliman | Draft Standard | September 2007 |
| 4862 | IPv6 Stateless Address AutoconfigurationS. Thomson, T. Narten, T. Jinmei | Draft Standard | September 2007 |
| 4866 | Enhanced Route Optimization for Mobile IPv6J. Arkko, C. Vogt, W. Haddad | Proposed Standard | May 2007 |
| 4877 | Mobile IPv6 Operation with IKEv2 and the Revised IPsec ArchitectureV. Devarapalli, F. Dupont | Proposed Standard | April 2007 |
| 4891 | Using IPsec to Secure IPv6-in-IPv4 TunnelsR. Graveman, M. Parthasarathy, P. Savola, H. Tschofenig | Informational | May 2007 |
| 4903 | Multi-Link Subnet IssuesD. Thaler | Informational | June 2007 |
| 4941 | Privacy Extensions for Stateless Address Autoconfiguration in IPv6T. Narten, R. Draves, S. Krishnan · obsoleted by RFC 8981 | Draft Standard | September 2007 |
| 5072 | IP Version 6 over PPPS. Varada, Ed., D. Haskins, E. Allen | Draft Standard | September 2007 |
| 5121 | Transmission of IPv6 via the IPv6 Convergence Sublayer over IEEE 802.16 NetworksB. Patil, F. Xia, B. Sarikaya, JH. Choi, S. Madanapalli | Proposed Standard | February 2008 |
| 5213 | Proxy Mobile IPv6S. Gundavelli, Ed., K. Leung, V. Devarapalli, K. Chowdhury, B. Patil | Proposed Standard | August 2008 |
| 5505 | Principles of Internet Host ConfigurationB. Aboba, D. Thaler, L. Andersson, S. Cheshire | Informational | May 2009 |
| 5533 | Shim6: Level 3 Multihoming Shim Protocol for IPv6E. Nordmark, M. Bagnulo | Proposed Standard | June 2009 |
| 5535 | Hash-Based Addresses (HBA)M. Bagnulo | Proposed Standard | June 2009 |
| 5741 | RFC Streams, Headers, and BoilerplatesL. Daigle, Ed., O. Kolkman, Ed., IAB · obsoleted by RFC 7841 | Informational | December 2009 |