| 5201 | Host Identity ProtocolR. Moskowitz, P. Nikander, P. Jokela, Ed., T. Henderson · obsoleted by RFC 7401 | Experimental | April 2008 |
| 4620 | IPv6 Node Information QueriesM. Crawford, B. Haberman, Ed. | Experimental | August 2006 |
| 4443 | Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) SpecificationA. Conta, S. Deering, M. Gupta, Ed. | Internet Standard | March 2006 |
| 4389 | Neighbor Discovery Proxies (ND Proxy)D. Thaler, M. Talwar, C. Patel | Experimental | April 2006 |
| 4340 | Datagram Congestion Control Protocol (DCCP)E. Kohler, M. Handley, S. Floyd | Proposed Standard | March 2006 |
| 4338 | Transmission of IPv6, IPv4, and Address Resolution Protocol (ARP) Packets over Fibre ChannelC. DeSanti, C. Carlson, R. Nixon | Proposed Standard | January 2006 |
| 4301 | Security Architecture for the Internet ProtocolS. Kent, K. Seo | Proposed Standard | December 2005 |
| 4294 | IPv6 Node RequirementsJ. Loughney, Ed. · obsoleted by RFC 6434 | Informational | April 2006 |
| 4286 | Multicast Router DiscoveryB. Haberman, J. Martin | Proposed Standard | December 2005 |
| 4213 | Basic Transition Mechanisms for IPv6 Hosts and RoutersE. Nordmark, R. Gilligan | Proposed Standard | October 2005 |
| 4193 | Unique Local IPv6 Unicast AddressesR. Hinden, B. Haberman | Proposed Standard | October 2005 |
| 4068 | Fast Handovers for Mobile IPv6R. Koodli, Ed. · obsoleted by RFC 5268 | Experimental | July 2005 |
| 4023 | Encapsulating MPLS in IP or Generic Routing Encapsulation (GRE)T. Worster, Y. Rekhter, E. Rosen, Ed. | Proposed Standard | March 2005 |
| 4008 | Definitions of Managed Objects for Network Address Translators (NAT)R. Rohit, P. Srisuresh, R. Raghunarayan, N. Pai, C. Wang · obsoleted by RFC 7658 | Proposed Standard | March 2005 |
| 4007 | IPv6 Scoped Address ArchitectureS. Deering, B. Haberman, T. Jinmei, E. Nordmark, B. Zill | Proposed Standard | March 2005 |
| 3971 | SEcure Neighbor Discovery (SEND)J. Arkko, Ed., J. Kempf, B. Zill, P. Nikander | Proposed Standard | March 2005 |
| 3919 | Remote Network Monitoring (RMON) Protocol Identifiers for IPv6 and Multi Protocol Label Switching (MPLS)E. Stephan, J. Palet | Informational | October 2004 |
| 3810 | Multicast Listener Discovery Version 2 (MLDv2) for IPv6R. Vida, Ed., L. Costa, Ed. · obsoleted by RFC 9777 | Proposed Standard | June 2004 |
| 3790 | Survey of IPv4 Addresses in Currently Deployed IETF Internet Area Standards Track and Experimental DocumentsC. Mickles, Ed., P. Nesser, II | Informational | June 2004 |
| 3775 | Mobility Support in IPv6D. Johnson, C. Perkins, J. Arkko · obsoleted by RFC 6275 | Proposed Standard | June 2004 |
| 3316 | Internet Protocol Version 6 (IPv6) for Some Second and Third Generation Cellular HostsJ. Arkko, G. Kuijpers, H. Soliman, J. Loughney, J. Wiljakka · obsoleted by RFC 7066 | Informational | May 2003 |
| 3209 | RSVP-TE: Extensions to RSVP for LSP TunnelsD. Awduche, L. Berger, D. Gan, T. Li, V. Srinivasan, G. Swallow | Proposed Standard | December 2001 |
| 3122 | Extensions to IPv6 Neighbor Discovery for Inverse Discovery SpecificationA. Conta | Proposed Standard | June 2001 |
| 2894 | Router Renumbering for IPv6M. Crawford | Proposed Standard | August 2000 |
| 2765 | Stateless IP/ICMP Translation Algorithm (SIIT)E. Nordmark · obsoleted by RFC 6145 | Proposed Standard | February 2000 |
| 2740 | OSPF for IPv6R. Coltun, D. Ferguson, J. Moy · obsoleted by RFC 5340 | Proposed Standard | December 1999 |
| 2710 | Multicast Listener Discovery (MLD) for IPv6S. Deering, W. Fenner, B. Haberman | Proposed Standard | October 1999 |
| 2675 | IPv6 JumbogramsD. Borman, S. Deering, R. Hinden | Proposed Standard | August 1999 |
| 2507 | IP Header CompressionM. Degermark, B. Nordgren, S. Pink | Proposed Standard | February 1999 |
| 2467 | Transmission of IPv6 Packets over FDDI NetworksM. Crawford | Proposed Standard | December 1998 |
| 2466 | Management Information Base for IP Version 6: ICMPv6 GroupD. Haskin, S. Onishi · obsoleted by RFC 4293, RFC 8096 | Historic | December 1998 |
| 2461 | Neighbor Discovery for IP Version 6 (IPv6)T. Narten, E. Nordmark, W. Simpson · obsoleted by RFC 4861 | Draft Standard | December 1998 |
| 2460 | Internet Protocol, Version 6 (IPv6) SpecificationS. Deering, R. Hinden · obsoleted by RFC 8200 | Draft Standard | December 1998 |