| RFC | Description | Author(s) | Status | Obsoleted by | Updated by | 
   
    | 4901 | Protocol Extensions for Header Compression over MPLS | J. Ash, Ed., J. Hand, Ed., A. Malis, Ed. | Proposed standard |  |  | 
   
    | 4902 | Integrity, Privacy, and Security in Open Pluggable Edge Services (OPES) for SMTP | M. Stecher | Informational |  |  | 
   
    | 4903 | Multi-Link Subnet Issues | D. Thaler | Informational |  |  | 
   
    | 4904 | Representing Trunk Groups in tel/sip Uniform Resource Identifiers (URIs) | V. Gurbani, C. Jennings | Proposed standard |  |  | 
   
    | 4905 | Encapsulation Methods for Transport of Layer 2 Frames over MPLS Networks | L. Martini, Ed., E. Rosen, Ed., N. El-Aawar, Ed. | Historic |  |  | 
   
    | 4906 | Transport of Layer 2 Frames Over MPLS | L. Martini, Ed., E. Rosen, Ed., N. El-Aawar, Ed. | Historic |  |  | 
   
    | 4907 | Architectural Implications of Link Indications | B. Aboba, Ed. | Informational |  |  | 
   
    | 4908 | Multi-homing for small scale fixed network Using Mobile IP and NEMO | K. Nagami, S. Uda, N. Ogashiwa, H. Esaki, R. Wakikawa, H. Ohnishi | Experimental |  |  | 
   
    | 4909 | Multimedia Internet KEYing (MIKEY) General Extension Payload for Open Mobile Alliance BCAST LTKM/STKM Transport | L. Dondeti, Ed., D. Castleford, F. Hartung | Informational | RFC 5410, RFC 6309 |  | 
   
    | 4910 | Robust XML Encoding Rules (RXER) for Abstract Syntax Notation One (ASN.1) | S. Legg, D. Prager | Experimental |  |  | 
   
    | 4911 | Encoding Instructions for the Robust XML Encoding Rules (RXER) | S. Legg | Experimental |  |  | 
   
    | 4912 | Abstract Syntax Notation X (ASN.X) | S. Legg | Experimental |  |  | 
   
    | 4913 | Abstract Syntax Notation X (ASN.X) Representation of Encoding Instructions for the Generic String Encoding Rules (GSER) | S. Legg | Experimental |  |  | 
   
    | 4914 | Abstract Syntax Notation X (ASN.X) Representation of Encoding Instructions for the XML Encoding Rules (XER) | S. Legg | Experimental |  |  | 
   
    | 4915 | Multi-Topology (MT) Routing in OSPF | P. Psenak, S. Mirtorabi, A. Roy, L. Nguyen, P. Pillay-Esnault | Proposed standard |  |  | 
   
    | 4916 | Connected Identity in the Session Initiation Protocol (SIP) | J. Elwell | Proposed standard |  |  | 
   
    | 4917 | Mobile IPv4 Message String Extension | V. Sastry, K. Leung, A. Patel | Proposed standard |  |  | 
   
    | 4918 | HTTP Extensions for Web Distributed Authoring and Versioning (WebDAV) | L. Dusseault, Ed. | Proposed standard |  | RFC 5689 | 
   
    | 4919 | IPv6 over Low-Power Wireless Personal Area Networks (6LoWPANs): Overview, Assumptions, Problem Statement, and Goals | N. Kushalnagar, G. Montenegro, C. Schumacher | Informational |  |  | 
   
    | 4920 | Crankback Signaling Extensions for MPLS and GMPLS RSVP-TE | A. Farrel, Ed., A. Satyanarayana, A. Iwata, N. Fujita, G. Ash | Proposed standard |  |  | 
   
    | 4923 | Quality of Service (QoS) Signaling in a Nested Virtual Private Network | F. Baker, P. Bose | Informational |  |  | 
   
    | 4924 | Reflections on Internet Transparency | B. Aboba, Ed., E. Davies | Informational |  |  | 
   
    | 4925 | Softwire Problem Statement | X. Li, Ed., S. Dawkins, Ed., D. Ward, Ed., A. Durand, Ed. | Informational |  |  | 
   
    | 4926 | A URN Namespace for GEANT | T. Kalin, M. Molina | Informational |  |  | 
   
    | 4927 | Path Computation Element Communication Protocol (PCECP) Specific Requirements for Inter-Area MPLS and GMPLS Traffic Engineering | J.-L. Le Roux, Ed. | Informational |  |  | 
   
    | 4928 | Avoiding Equal Cost Multipath Treatment in MPLS Networks | G. Swallow, S. Bryant, L. Andersson | Best current practice |  | RFC 7274, RFC 9790 | 
   
    | 4929 | Change Process for Multiprotocol Label Switching (MPLS) and Generalized MPLS (GMPLS) Protocols and Procedures | L. Andersson, Ed., A. Farrel, Ed. | Best current practice |  |  | 
   
    | 4930 | Extensible Provisioning Protocol (EPP) | S. Hollenbeck | Draft standard | RFC 5730 |  | 
   
    | 4931 | Extensible Provisioning Protocol (EPP) Domain Name Mapping | S. Hollenbeck | Draft standard | RFC 5731 |  | 
   
    | 4932 | Extensible Provisioning Protocol (EPP) Host Mapping | S. Hollenbeck | Draft standard | RFC 5732 |  | 
   
    | 4933 | Extensible Provisioning Protocol (EPP) Contact Mapping | S. Hollenbeck | Draft standard | RFC 5733 |  | 
   
    | 4934 | Extensible Provisioning Protocol (EPP) Transport Over TCP | S. Hollenbeck | Draft standard | RFC 5734 |  | 
   
    | 4935 | Fibre Channel Fabric Configuration Server MIB | C. DeSanti, H.K. Vivek, K. McCloghrie, S. Gai | Proposed standard |  |  | 
   
    | 4936 | Fibre Channel Zone Server MIB | C. DeSanti, H.K. Vivek, K. McCloghrie, S. Gai | Proposed standard |  |  | 
   
    | 4937 | IANA Considerations for PPP over Ethernet (PPPoE) | P. Arberg, V. Mammoliti | Informational |  |  | 
   
    | 4938 | PPP Over Ethernet (PPPoE) Extensions for Credit Flow and Link Metrics | B. Berry, H. Holgate | Informational | RFC 5578 |  | 
   
    | 4939 | Definitions of Managed Objects for iSNS (Internet Storage Name Service) | K. Gibbons, G. Ramkumar, S. Kipp | Proposed standard |  |  | 
   
    | 4940 | IANA Considerations for OSPF | K. Kompella, B. Fenner | Best current practice |  |  | 
   
    | 4941 | Privacy Extensions for Stateless Address Autoconfiguration in IPv6 | T. Narten, R. Draves, S. Krishnan | Draft standard | RFC 8981 |  | 
   
    | 4942 | IPv6 Transition/Co-existence Security Considerations | E. Davies, S. Krishnan, P. Savola | Informational |  |  | 
   
    | 4943 | IPv6 Neighbor Discovery On-Link Assumption Considered Harmful | S. Roy, A. Durand, J. Paugh | Informational |  |  | 
   
    | 4944 | Transmission of IPv6 Packets over IEEE 802.15.4 Networks | G. Montenegro, N. Kushalnagar, J. Hui, D. Culler | Proposed standard |  | RFC 6282, RFC 6775, RFC 8025, RFC 8066, RFC 8931 | 
   
    | 4945 | The Internet IP Security PKI Profile of IKEv1/ISAKMP, IKEv2, and PKIX | B. Korver | Proposed standard |  |  | 
   
    | 4946 | Atom License Extension | J. Snell | Experimental |  |  | 
   
    | 4947 | Address Resolution Mechanisms for IP Datagrams over MPEG-2 Networks | G. Fairhurst, M. Montpetit | Informational |  |  | 
   
    | 4948 | Report from the IAB workshop on Unwanted Traffic March 9-10, 2006 | L. Andersson, E. Davies, L. Zhang | Informational |  |  | 
   
    | 4949 | Internet Security Glossary, Version 2 | R. Shirey | Informational |  |  | 
   
    | 4950 | ICMP Extensions for Multiprotocol Label Switching | R. Bonica, D. Gan, D. Tappan, C. Pignataro | Proposed standard |  |  | 
   
    | 4951 | Fail Over Extensions for Layer 2 Tunneling Protocol (L2TP) "failover" | V. Jain, Ed. | Proposed standard |  |  | 
   
    | 4952 | Overview and Framework for Internationalized Email | J. Klensin, Y. Ko | Informational | RFC 6530 | RFC 5336 | 
   
    | 4953 | Defending TCP Against Spoofing Attacks | J. Touch | Informational |  |  | 
   
    | 4954 | SMTP Service Extension for Authentication | R. Siemborski, Ed., A. Melnikov, Ed. | Proposed standard |  | RFC 5248 | 
   
    | 4955 | DNS Security (DNSSEC) Experiments | D. Blacka | Proposed standard |  |  | 
   
    | 4956 | DNS Security (DNSSEC) Opt-In | R. Arends, M. Kosters, D. Blacka | Experimental |  |  | 
   
    | 4957 | Link-Layer Event Notifications for Detecting Network Attachments | S. Krishnan, Ed., N. Montavont, E. Njedjou, S. Veerepalli, A. Yegin, Ed. | Informational |  |  | 
   
    | 4958 | A Framework for Supporting Emergency Telecommunications Services (ETS) within a Single Administrative Domain | K. Carlberg | Informational |  |  | 
   
    | 4959 | IMAP Extension for Simple Authentication and Security Layer (SASL) Initial Client Response | R. Siemborski, A. Gulbrandsen | Proposed standard |  |  | 
   
    | 4960 | Stream Control Transmission Protocol | R. Stewart, Ed. | Proposed standard | RFC 9260 | RFC 6096, RFC 6335, RFC 7053, RFC 8899 | 
   
    | 4961 | Symmetric RTP / RTP Control Protocol (RTCP) | D. Wing | Best current practice |  |  | 
   
    | 4962 | Guidance for Authentication, Authorization, and Accounting (AAA) Key Management | R. Housley, B. Aboba | Best current practice |  |  | 
   
    | 4963 | IPv4 Reassembly Errors at High Data Rates | J. Heffner, M. Mathis, B. Chandler | Informational |  |  | 
   
    | 4964 | The P-Answer-State Header Extension to the Session Initiation Protocol for the Open Mobile Alliance Push to Talk over Cellular | A. Allen, Ed., J. Holm, T. Hallin | Informational |  | RFC 8996 | 
   
    | 4965 | CableLabs - IETF Standardization Collaboration | J-F. Mule, W. Townsley | Informational |  |  | 
   
    | 4966 | Reasons to Move the Network Address Translator - Protocol Translator (NAT-PT) to Historic Status | C. Aoun, E. Davies | Informational |  |  | 
   
    | 4967 | Dial String Parameter for the Session Initiation Protocol Uniform Resource Identifier | B. Rosen | Proposed standard |  |  | 
   
    | 4968 | Analysis of IPv6 Link Models for 802.16 Based Networks | S. Madanapalli, Ed. | Informational |  |  | 
   
    | 4969 | IANA Registration for vCard Enumservice | A. Mayrhofer | Proposed standard |  | RFC 6118 | 
   
    | 4970 | Extensions to OSPF for Advertising Optional Router Capabilities | A. Lindem, Ed., N. Shen, JP. Vasseur, R. Aggarwal, S. Shaffer | Proposed standard | RFC 7770 |  | 
   
    | 4971 | Intermediate System to Intermediate System (IS-IS) Extensions for Advertising Router Information | JP. Vasseur, Ed., N. Shen, Ed., R. Aggarwal, Ed. | Proposed standard | RFC 7981 |  | 
   
    | 4972 | Routing Extensions for Discovery of Multiprotocol (MPLS) Label Switch Router (LSR) Traffic Engineering (TE) Mesh Membership | JP. Vasseur, Ed., JL. Leroux, Ed., S. Yasukawa, S. Previdi, P. Psenak, P. Mabbey | Proposed standard |  |  | 
   
    | 4973 | OSPF-xTE: Experimental Extension to OSPF for Traffic Engineering | P. Srisuresh, P. Joseph | Experimental |  |  | 
   
    | 4974 | Generalized MPLS (GMPLS) RSVP-TE Signaling Extensions in Support of Calls | D. Papadimitriou, A. Farrel | Proposed standard |  | RFC 6001 | 
   
    | 4975 | The Message Session Relay Protocol (MSRP) | B. Campbell, Ed., R. Mahy, Ed., C. Jennings, Ed. | Proposed standard |  | RFC 7977, RFC 8591, RFC 8873, RFC 8996 | 
   
    | 4976 | Relay Extensions for the Message Sessions Relay Protocol (MSRP) | C. Jennings, R. Mahy, A. B. Roach | Proposed standard |  | RFC 7977, RFC 8553, RFC 8996 | 
   
    | 4977 | Problem Statement: Dual Stack Mobility | G. Tsirtsis, H. Soliman | Informational |  |  | 
   
    | 4978 | The IMAP COMPRESS Extension | A. Gulbrandsen | Proposed standard |  |  | 
   
    | 4979 | IANA Registration for Enumservice 'XMPP' | A. Mayrhofer | Proposed standard |  | RFC 6118 | 
   
    | 4980 | Analysis of Multihoming in Network Mobility Support | C. Ng, T. Ernst, E. Paik, M. Bagnulo | Informational |  |  | 
   
    | 4981 | Survey of Research towards Robust Peer-to-Peer Networks: Search Methods | J. Risson, T. Moors | Informational |  |  | 
   
    | 4982 | Support for Multiple Hash Algorithms in Cryptographically Generated Addresses (CGAs) | M. Bagnulo, J. Arkko | Proposed standard |  |  | 
   
    | 4983 | Fibre Channel Registered State Change Notification (RSCN) MIB | C. DeSanti, H.K. Vivek, K. McCloghrie, S. Gai | Proposed standard |  |  | 
   
    | 4984 | Report from the IAB Workshop on Routing and Addressing | D. Meyer, Ed., L. Zhang, Ed., K. Fall, Ed. | Informational |  |  | 
   
    | 4985 | Internet X.509 Public Key Infrastructure Subject Alternative Name for Expression of Service Name | S. Santesson | Proposed standard |  |  | 
   
    | 4986 | Requirements Related to DNS Security (DNSSEC) Trust Anchor Rollover | H. Eland, R. Mundy, S. Crocker, S. Krishnaswamy | Informational |  |  | 
   
    | 4987 | TCP SYN Flooding Attacks and Common Mitigations | W. Eddy | Informational |  |  | 
   
    | 4988 | Mobile IPv4 Fast Handovers | R. Koodli, C. Perkins | Experimental |  |  | 
   
    | 4990 | Use of Addresses in Generalized Multiprotocol Label Switching (GMPLS) Networks | K. Shiomoto, R. Papneja, R. Rabbat | Informational |  |  | 
   
    | 4991 | A Common Schema for Internet Registry Information Service Transfer Protocols | A. Newton | Proposed standard |  |  | 
   
    | 4992 | XML Pipelining with Chunks for the Internet Registry Information Service | A. Newton | Proposed standard |  | RFC 8996 | 
   
    | 4993 | A Lightweight UDP Transfer Protocol for the Internet Registry Information Service | A. Newton | Proposed standard |  |  | 
   
    | 4994 | DHCPv6 Relay Agent Echo Request Option | S. Zeng, B. Volz, K. Kinnear, J. Brzozowski | Proposed standard |  |  | 
   
    | 4995 | The RObust Header Compression (ROHC) Framework | L-E. Jonsson, G. Pelletier, K. Sandlund | Proposed standard | RFC 5795 |  | 
   
    | 4996 | RObust Header Compression (ROHC): A Profile for TCP/IP (ROHC-TCP) | G. Pelletier, K. Sandlund, L-E. Jonsson, M. West | Proposed standard | RFC 6846 |  | 
   
    | 4997 | Formal Notation for RObust Header Compression (ROHC-FN) | R. Finking, G. Pelletier | Proposed standard |  |  | 
   
    | 4998 | Evidence Record Syntax (ERS) | T. Gondrom, R. Brandner, U. Pordesch | Proposed standard |  |  | 
   
    | 5000 | Internet Official Protocol Standards | RFC Editor | Historic | RFC 7100 |  |