| 5149 | Service Selection for Mobile IPv6J. Korhonen, U. Nilsson, V. Devarapalli | Informational | February 2008 |
| 5150 | Label Switched Path Stitching with Generalized Multiprotocol Label Switching Traffic Engineering (GMPLS TE)A. Ayyangar, K. Kompella, JP. Vasseur, A. Farrel | Proposed Standard | February 2008 |
| 5151 | Inter-Domain MPLS and GMPLS Traffic Engineering -- Resource Reservation Protocol-Traffic Engineering (RSVP-TE) ExtensionsA. Farrel, Ed., A. Ayyangar, JP. Vasseur | Proposed Standard | February 2008 |
| 5152 | A Per-Domain Path Computation Method for Establishing Inter-Domain Traffic Engineering (TE) Label Switched Paths (LSPs)JP. Vasseur, Ed., A. Ayyangar, Ed., R. Zhang | Proposed Standard | February 2008 |
| 5153 | IP Flow Information Export (IPFIX) Implementation GuidelinesE. Boschi, L. Mark, J. Quittek, M. Stiemerling, P. Aitken | Informational | April 2008 |
| 5154 | IP over IEEE 802.16 Problem Statement and GoalsJ. Jee, Ed., S. Madanapalli, J. Mandin | Informational | April 2008 |
| 5155 | DNS Security (DNSSEC) Hashed Authenticated Denial of ExistenceB. Laurie, G. Sisson, R. Arends, D. Blacka | Proposed Standard | March 2008 |
| 5156 | Special-Use IPv6 AddressesM. Blanchet · obsoleted by RFC 6890 | Informational | April 2008 |
| 5157 | IPv6 Implications for Network ScanningT. Chown · obsoleted by RFC 7707 | Informational | March 2008 |
| 5158 | 6to4 Reverse DNS Delegation SpecificationG. Huston | Informational | March 2008 |
| 5159 | Session Description Protocol (SDP) Attributes for Open Mobile Alliance (OMA) Broadcast (BCAST) Service and Content ProtectionL. Dondeti, Ed., A. Jerichow | Informational | March 2008 |
| 5160 | Considerations of Provider-to-Provider Agreements for Internet-Scale Quality of Service (QoS)P. Levis, M. Boucadair | Informational | March 2008 |
| 5161 | The IMAP ENABLE ExtensionA. Gulbrandsen, Ed., A. Melnikov, Ed. | Proposed Standard | March 2008 |
| 5162 | IMAP4 Extensions for Quick Mailbox ResynchronizationA. Melnikov, D. Cridland, C. Wilson · obsoleted by RFC 7162 | Proposed Standard | March 2008 |
| 5163 | Extension Formats for Unidirectional Lightweight Encapsulation (ULE) and the Generic Stream Encapsulation (GSE)G. Fairhurst, B. Collini-Nocker | Proposed Standard | April 2008 |
| 5164 | Mobility Services Transport: Problem StatementT. Melia, Ed. | Informational | March 2008 |
| 5165 | A Uniform Resource Name (URN) Namespace for the Open Geospatial Consortium (OGC)C. Reed | Informational | April 2008 |
| 5166 | Metrics for the Evaluation of Congestion Control MechanismsS. Floyd, Ed. | Informational | March 2008 |
| 5167 | Media Server Control Protocol RequirementsM. Dolly, R. Even | Informational | March 2008 |
| 5168 | XML Schema for Media ControlO. Levin, R. Even, P. Hagendorf | Informational | March 2008 |
| 5169 | Handover Key Management and Re-Authentication Problem StatementT. Clancy, M. Nakhjiri, V. Narayanan, L. Dondeti | Informational | March 2008 |
| 5170 | Low Density Parity Check (LDPC) Staircase and Triangle Forward Error Correction (FEC) SchemesV. Roca, C. Neumann, D. Furodet | Proposed Standard | June 2008 |
| 5171 | Cisco Systems UniDirectional Link Detection (UDLD) ProtocolM. Foschiano | Informational | April 2008 |
| 5172 | Negotiation for IPv6 Datagram Compression Using IPv6 Control ProtocolS. Varada, Ed. | Proposed Standard | March 2008 |
| 5173 | Sieve Email Filtering: Body ExtensionJ. Degener, P. Guenther | Proposed Standard | April 2008 |
| 5174 | A Uniform Resource Name (URN) Namespace for the European Broadcasting Union (EBU)J-P. Evain | Informational | May 2008 |
| 5175 | IPv6 Router Advertisement Flags OptionB. Haberman, Ed., R. Hinden | Proposed Standard | March 2008 |
| 5176 | Dynamic Authorization Extensions to Remote Authentication Dial In User Service (RADIUS)M. Chiba, G. Dommety, M. Eklund, D. Mitton, B. Aboba | Informational | January 2008 |
| 5177 | Network Mobility (NEMO) Extensions for Mobile IPv4K. Leung, G. Dommety, V. Narayanan, A. Petrescu | Proposed Standard | April 2008 |
| 5178 | Generic Security Service Application Program Interface (GSS-API) Internationalization and Domain-Based Service Names and Name TypeN. Williams, A. Melnikov | Proposed Standard | May 2008 |
| 5179 | Generic Security Service Application Program Interface (GSS-API) Domain-Based Service Names Mapping for the Kerberos V GSS MechanismN. Williams | Proposed Standard | May 2008 |
| 5180 | IPv6 Benchmarking Methodology for Network Interconnect DevicesC. Popoviciu, A. Hamza, G. Van de Velde, D. Dugatkin | Informational | May 2008 |
| 5181 | IPv6 Deployment Scenarios in 802.16 NetworksM-K. Shin, Ed., Y-H. Han, S-E. Kim, D. Premec | Informational | May 2008 |
| 5182 | IMAP Extension for Referencing the Last SEARCH ResultA. Melnikov | Proposed Standard | March 2008 |
| 5183 | Sieve Email Filtering: Environment ExtensionN. Freed | Proposed Standard | May 2008 |
| 5184 | Unified Layer 2 (L2) Abstractions for Layer 3 (L3)-Driven Fast HandoverF. Teraoka, K. Gogo, K. Mitsuya, R. Shibui, K. Mitani | Experimental | May 2008 |
| 5185 | OSPF Multi-Area AdjacencyS. Mirtorabi, P. Psenak, A. Lindem, Ed., A. Oswal | Proposed Standard | May 2008 |
| 5186 | Internet Group Management Protocol Version 3 (IGMPv3) / Multicast Listener Discovery Version 2 (MLDv2) and Multicast Routing Protocol InteractionB. Haberman, J. Martin | Informational | May 2008 |
| 5187 | OSPFv3 Graceful RestartP. Pillay-Esnault, A. Lindem | Proposed Standard | June 2008 |
| 5188 | RTP Payload Format for the Enhanced Variable Rate Wideband Codec (EVRC-WB) and the Media Subtype Updates for EVRC-B CodecH. Desineni, Q. Xie | Proposed Standard | February 2008 |
| 5189 | Middlebox Communication (MIDCOM) Protocol SemanticsM. Stiemerling, J. Quittek, T. Taylor | Proposed Standard | March 2008 |
| 5190 | Definitions of Managed Objects for Middlebox CommunicationJ. Quittek, M. Stiemerling, P. Srisuresh | Proposed Standard | March 2008 |
| 5191 | Protocol for Carrying Authentication for Network Access (PANA)D. Forsberg, Y. Ohba, Ed., B. Patil, H. Tschofenig, A. Yegin | Proposed Standard | May 2008 |
| 5192 | DHCP Options for Protocol for Carrying Authentication for Network Access (PANA) Authentication AgentsL. Morand, A. Yegin, S. Kumar, S. Madanapalli | Proposed Standard | May 2008 |
| 5193 | Protocol for Carrying Authentication for Network Access (PANA) FrameworkP. Jayaraman, R. Lopez, Y. Ohba, Ed., M. Parthasarathy, A. Yegin | Informational | May 2008 |
| 5194 | Framework for Real-Time Text over IP Using the Session Initiation Protocol (SIP)A. van Wijk, Ed., G. Gybels, Ed. | Informational | June 2008 |
| 5195 | BGP-Based Auto-Discovery for Layer-1 VPNsH. Ould-Brahim, D. Fedyk, Y. Rekhter | Proposed Standard | June 2008 |
| 5196 | Session Initiation Protocol (SIP) User Agent Capability Extension to Presence Information Data Format (PIDF)M. Lonnfors, K. Kiss | Proposed Standard | September 2008 |
| 5197 | On the Applicability of Various Multimedia Internet KEYing (MIKEY) Modes and ExtensionsS. Fries, D. Ignjatic | Informational | June 2008 |
| 5198 | Unicode Format for Network InterchangeJ. Klensin, M. Padlipsky | Proposed Standard | March 2008 |
| 5201 | Host Identity ProtocolR. Moskowitz, P. Nikander, P. Jokela, Ed., T. Henderson · obsoleted by RFC 7401 | Experimental | April 2008 |
| 5202 | Using the Encapsulating Security Payload (ESP) Transport Format with the Host Identity Protocol (HIP)P. Jokela, R. Moskowitz, P. Nikander · obsoleted by RFC 7402 | Experimental | April 2008 |
| 5203 | Host Identity Protocol (HIP) Registration ExtensionJ. Laganier, T. Koponen, L. Eggert · obsoleted by RFC 8003 | Experimental | April 2008 |
| 5204 | Host Identity Protocol (HIP) Rendezvous ExtensionJ. Laganier, L. Eggert · obsoleted by RFC 8004 | Experimental | April 2008 |
| 5205 | Host Identity Protocol (HIP) Domain Name System (DNS) ExtensionsP. Nikander, J. Laganier · obsoleted by RFC 8005 | Experimental | April 2008 |
| 5206 | End-Host Mobility and Multihoming with the Host Identity ProtocolP. Nikander, T. Henderson, Ed., C. Vogt, J. Arkko · obsoleted by RFC 8046 | Experimental | April 2008 |
| 5207 | NAT and Firewall Traversal Issues of Host Identity Protocol (HIP) CommunicationM. Stiemerling, J. Quittek, L. Eggert | Informational | April 2008 |
| 5208 | Public-Key Cryptography Standards (PKCS) #8: Private-Key Information Syntax Specification Version 1.2B. Kaliski · obsoleted by RFC 5958 | Informational | May 2008 |
| 5209 | Network Endpoint Assessment (NEA): Overview and RequirementsP. Sangster, H. Khosravi, M. Mani, K. Narayan, J. Tardo | Informational | June 2008 |
| 5210 | A Source Address Validation Architecture (SAVA) Testbed and Deployment ExperienceJ. Wu, J. Bi, X. Li, G. Ren, K. Xu, M. Williams | Experimental | June 2008 |
| 5211 | An Internet Transition PlanJ. Curran | Informational | July 2008 |
| 5212 | Requirements for GMPLS-Based Multi-Region and Multi-Layer Networks (MRN/MLN)K. Shiomoto, D. Papadimitriou, JL. Le Roux, M. Vigoureux, D. Brungard | Informational | July 2008 |
| 5213 | Proxy Mobile IPv6S. Gundavelli, Ed., K. Leung, V. Devarapalli, K. Chowdhury, B. Patil | Proposed Standard | August 2008 |
| 5214 | Intra-Site Automatic Tunnel Addressing Protocol (ISATAP)F. Templin, T. Gleeson, D. Thaler | Informational | March 2008 |
| 5215 | RTP Payload Format for Vorbis Encoded AudioL. Barbato | Proposed Standard | August 2008 |
| 5216 | The EAP-TLS Authentication ProtocolD. Simon, B. Aboba, R. Hurst | Proposed Standard | March 2008 |
| 5217 | Memorandum for Multi-Domain Public Key Infrastructure InteroperabilityM. Shimaoka, Ed., N. Hastings, R. Nielsen | Informational | July 2008 |
| 5218 | What Makes for a Successful Protocol?D. Thaler, B. Aboba | Informational | July 2008 |
| 5219 | A More Loss-Tolerant RTP Payload Format for MP3 AudioR. Finlayson | Proposed Standard | February 2008 |
| 5220 | Problem Statement for Default Address Selection in Multi-Prefix Environments: Operational Issues of RFC 3484 Default RulesA. Matsumoto, T. Fujisaki, R. Hiromi, K. Kanayama | Informational | July 2008 |
| 5221 | Requirements for Address Selection MechanismsA. Matsumoto, T. Fujisaki, R. Hiromi, K. Kanayama | Informational | July 2008 |
| 5222 | LoST: A Location-to-Service Translation ProtocolT. Hardie, A. Newton, H. Schulzrinne, H. Tschofenig | Proposed Standard | August 2008 |
| 5223 | Discovering Location-to-Service Translation (LoST) Servers Using the Dynamic Host Configuration Protocol (DHCP)H. Schulzrinne, J. Polk, H. Tschofenig | Proposed Standard | August 2008 |
| 5224 | Diameter Policy Processing ApplicationM. Brenner | Informational | March 2008 |
| 5225 | RObust Header Compression Version 2 (ROHCv2): Profiles for RTP, UDP, IP, ESP and UDP-LiteG. Pelletier, K. Sandlund | Proposed Standard | April 2008 |
| 5226 | Guidelines for Writing an IANA Considerations Section in RFCsT. Narten, H. Alvestrand · obsoleted by RFC 8126 | Best Current Practice | May 2008 |
| 5227 | IPv4 Address Conflict DetectionS. Cheshire | Proposed Standard | July 2008 |
| 5228 | Sieve: An Email Filtering LanguageP. Guenther, Ed., T. Showalter, Ed. | Proposed Standard | January 2008 |
| 5229 | Sieve Email Filtering: Variables ExtensionK. Homme | Proposed Standard | January 2008 |
| 5230 | Sieve Email Filtering: Vacation ExtensionT. Showalter, N. Freed, Ed. | Proposed Standard | January 2008 |
| 5231 | Sieve Email Filtering: Relational ExtensionW. Segmuller, B. Leiba | Proposed Standard | January 2008 |
| 5232 | Sieve Email Filtering: Imap4flags ExtensionA. Melnikov | Proposed Standard | January 2008 |
| 5233 | Sieve Email Filtering: Subaddress ExtensionK. Murchison | Proposed Standard | January 2008 |
| 5234 | Augmented BNF for Syntax Specifications: ABNFD. Crocker, Ed., P. Overell | Internet Standard | January 2008 |
| 5235 | Sieve Email Filtering: Spamtest and Virustest ExtensionsC. Daboo | Proposed Standard | January 2008 |
| 5236 | Improved Packet Reordering MetricsA. Jayasumana, N. Piratla, T. Banka, A. Bare, R. Whitner | Informational | June 2008 |
| 5237 | IANA Allocation Guidelines for the Protocol FieldJ. Arkko, S. Bradner | Best Current Practice | February 2008 |
| 5238 | Datagram Transport Layer Security (DTLS) over the Datagram Congestion Control Protocol (DCCP)T. Phelan | Proposed Standard | May 2008 |
| 5239 | A Framework for Centralized ConferencingM. Barnes, C. Boulton, O. Levin | Proposed Standard | June 2008 |
| 5240 | Protocol Independent Multicast (PIM) Bootstrap Router MIBB. Joshi, R. Bijlani | Proposed Standard | June 2008 |
| 5241 | Naming Rights in IETF ProtocolsA. Falk, S. Bradner | Informational | 1 April 2008 |
| 5242 | A Generalized Unified Character Code: Western European and CJK SectionsJ. Klensin, H. Alvestrand | Informational | 1 April 2008 |
| 5243 | OSPF Database Exchange Summary List OptimizationR. Ogier | Informational | May 2008 |
| 5244 | Definition of Events for Channel-Oriented Telephony SignallingH. Schulzrinne, T. Taylor | Proposed Standard | June 2008 |
| 5245 | Interactive Connectivity Establishment (ICE): A Protocol for Network Address Translator (NAT) Traversal for Offer/Answer ProtocolsJ. Rosenberg · obsoleted by RFC 8445, RFC 8839 | Proposed Standard | April 2010 |
| 5246 | The Transport Layer Security (TLS) Protocol Version 1.2T. Dierks, E. Rescorla · obsoleted by RFC 8446, RFC 9846 | Proposed Standard | August 2008 |
| 5247 | Extensible Authentication Protocol (EAP) Key Management FrameworkB. Aboba, D. Simon, P. Eronen | Proposed Standard | August 2008 |