| 2119 | Key words for use in RFCs to Indicate Requirement LevelsS. Bradner | Best Current Practice | March 1997 |
| 2473 | Generic Packet Tunneling in IPv6 SpecificationA. Conta, S. Deering | Proposed Standard | December 1998 |
| 2983 | Differentiated Services and TunnelsD. Black | Informational | October 2000 |
| 3168 | The Addition of Explicit Congestion Notification (ECN) to IPK. Ramakrishnan, S. Floyd, D. Black | Proposed Standard | September 2001 |
| 3344 | IP Mobility Support for IPv4C. Perkins, Ed. · obsoleted by RFC 5944 | Proposed Standard | August 2002 |
| 3519 | Mobile IP Traversal of Network Address Translation (NAT) DevicesH. Levkowetz, S. Vaarala | Proposed Standard | May 2003 |
| 3775 | Mobility Support in IPv6D. Johnson, C. Perkins, J. Arkko · obsoleted by RFC 6275 | Proposed Standard | June 2004 |
| 3948 | UDP Encapsulation of IPsec ESP PacketsA. Huttunen, B. Swander, V. Volpe, L. DiBurro, M. Stenberg | Proposed Standard | January 2005 |
| 3963 | Network Mobility (NEMO) Basic Support ProtocolV. Devarapalli, R. Wakikawa, A. Petrescu, P. Thubert | Proposed Standard | January 2005 |
| 4306 | Internet Key Exchange (IKEv2) ProtocolC. Kaufman, Ed. · obsoleted by RFC 5996 | Proposed Standard | December 2005 |
| 4436 | Detecting Network Attachment in IPv4 (DNAv4)B. Aboba, J. Carlson, S. Cheshire | Proposed Standard | March 2006 |
| 4459 | MTU and Fragmentation Issues with In-the-Network TunnelingP. Savola | Informational | April 2006 |
| 4555 | IKEv2 Mobility and Multihoming Protocol (MOBIKE)P. Eronen | Proposed Standard | June 2006 |
| 4844 | The RFC Series and RFC EditorL. Daigle, Ed., Internet Architecture Board · obsoleted by RFC 8729 | Informational | July 2007 |
| 4861 | Neighbor Discovery for IP version 6 (IPv6)T. Narten, E. Nordmark, W. Simpson, H. Soliman | Draft Standard | September 2007 |
| 4877 | Mobile IPv6 Operation with IKEv2 and the Revised IPsec ArchitectureV. Devarapalli, F. Dupont | Proposed Standard | April 2007 |
| 4977 | Problem Statement: Dual Stack MobilityG. Tsirtsis, H. Soliman | Informational | August 2007 |
| 5026 | Mobile IPv6 Bootstrapping in Split ScenarioG. Giaretta, Ed., J. Kempf, V. Devarapalli, Ed. | Proposed Standard | October 2007 |
| 5380 | Hierarchical Mobile IPv6 (HMIPv6) Mobility ManagementH. Soliman, C. Castelluccia, K. ElMalki, L. Bellier | Proposed Standard | October 2008 |
| 5389 | Session Traversal Utilities for NAT (STUN)J. Rosenberg, R. Mahy, P. Matthews, D. Wing · obsoleted by RFC 8489 | Proposed Standard | October 2008 |
| 5405 | Unicast UDP Usage Guidelines for Application DesignersL. Eggert, G. Fairhurst · obsoleted by RFC 8085 | Best Current Practice | November 2008 |