RFC Abstracts

RFC4474 - Enhancements for Authenticated Identity Management in the Session Initiation Protocol (SIP)
The existing security mechanisms in the Session Initiation Protocol (SIP) are inadequate for cryptographically assuring the identity of the end users that originate SIP requests, especially in an interdomain context. This document defines a mechanism for securely identifying originators of SIP messages. It does so by defining two new SIP header fields, Identity, for conveying a signature used for validating the identity, and Identity-Info, for conveying a reference to the certificate of the signer. [STANDARDS-TRACK]
RFC4473 - Requirements for Internet Media Guides (IMGs)
This memo specifies requirements for a framework and protocols for accessing and updating Internet Media Guide (IMG) information for media-on-demand and multicast applications. These requirements are designed to guide choice and development of IMG protocols for efficient and scalable delivery. This memo provides information for the Internet community.
RFC4472 - Operational Considerations and Issues with IPv6 DNS
This memo presents operational considerations and issues with IPv6 Domain Name System (DNS), including a summary of special IPv6 addresses, documentation of known DNS implementation misbehavior, recommendations and considerations on how to perform DNS naming for service provisioning and for DNS resolver IPv6 support, considerations for DNS updates for both the forward and reverse trees, and miscellaneous issues. This memo is aimed to include a summary of information about IPv6 DNS considerations for those who have experience with IPv4 DNS. This memo provides information for the Internet community.
RFC4471 - Derivation of DNS Name Predecessor and Successor
This document describes two methods for deriving the canonically-ordered predecessor and successor of a DNS name. These methods may be used for dynamic NSEC resource record synthesis, enabling security-aware name servers to provide authenticated denial of existence without disclosing other owner names in a DNSSEC secured zone. This memo defines an Experimental Protocol for the Internet community.
RFC4470 - Minimally Covering NSEC Records and DNSSEC On-line Signing
This document describes how to construct DNSSEC NSEC resource records that cover a smaller range of names than called for by RFC 4034. By generating and signing these records on demand, authoritative name servers can effectively stop the disclosure of zone contents otherwise made possible by walking the chain of NSEC records in a signed zone. [STANDARDS-TRACK]
RFC4469 - Internet Message Access Protocol (IMAP) CATENATE Extension
The CATENATE extension to the Internet Message Access Protocol (IMAP) extends the APPEND command to allow clients to create messages on the IMAP server that may contain a combination of new data along with parts of (or entire) messages already on the server. Using this extension, the client can catenate parts of an already existing message onto a new message without having to first download the data and then upload it back to the server. [STANDARDS-TRACK]
RFC4468 - Message Submission BURL Extension
The submission profile of Simple Mail Transfer Protocol (SMTP) provides a standard way for an email client to submit a complete message for delivery. This specification extends the submission profile by adding a new BURL command that can be used to fetch submission data from an Internet Message Access Protocol (IMAP) server. This permits a mail client to inject content from an IMAP server into the SMTP infrastructure without downloading it to the client and uploading it back to the server. [STANDARDS-TRACK]
RFC4467 - Internet Message Access Protocol (IMAP) - URLAUTH Extension
This document describes the URLAUTH extension to the Internet Message Access Protocol (IMAP) (RFC 3501) and the IMAP URL Scheme (IMAPURL) (RFC 2192). This extension provides a means by which an IMAP client can use URLs carrying authorization to access limited message data on the IMAP server.
RFC4466 - Collected Extensions to IMAP4 ABNF
Over the years, many documents from IMAPEXT and LEMONADE working groups, as well as many individual documents, have added syntactic extensions to many base IMAP commands described in RFC 3501. For ease of reference, this document collects most of such ABNF changes in one place.
RFC4465 - Signaling Compression (SigComp) Torture Tests
This document provides a set of "torture tests" for implementers of the Signaling Compression (SigComp) protocol. The torture tests check each of the SigComp Universal Decompressor Virtual Machine instructions in turn, focusing in particular on the boundary and error cases that are not generally encountered when running well-behaved compression algorithms. Tests are also provided for other SigComp entities such as the dispatcher and the state handler. This memo provides information for the Internet community.
RFC4464 - Signaling Compression (SigComp) Users' Guide
This document provides an informational guide for users of the Signaling Compression (SigComp) protocol. The aim of the document is to assist users when making SigComp implementation decisions, for example, the choice of compression algorithm and the level of robustness against lost or misordered packets. This memo provides information for the Internet community.
RFC4463 - A Media Resource Control Protocol (MRCP) Developed by Cisco, Nuance, and Speechworks
This document describes a Media Resource Control Protocol (MRCP) that was developed jointly by Cisco Systems, Inc., Nuance Communications, and Speechworks, Inc. It is published as an RFC as input for further IETF development in this area.
RFC4462 - Generic Security Service Application Program Interface (GSS-API) Authentication and Key Exchange for the Secure Shell (SSH) Protocol
The Secure Shell protocol (SSH) is a protocol for secure remote login and other secure network services over an insecure network.
RFC4461 - Signaling Requirements for Point-to-Multipoint Traffic-Engineered MPLS Label Switched Paths (LSPs)
This document presents a set of requirements for the establishment and maintenance of Point-to-Multipoint (P2MP) Traffic-Engineered (TE) Multiprotocol Label Switching (MPLS) Label Switched Paths (LSPs).
RFC4460 - Stream Control Transmission Protocol (SCTP) Specification Errata and Issues
This document is a compilation of issues found during six interoperability events and 5 years of experience with implementing, testing, and using SCTP along with the suggested fixes. This document provides deltas to RFC 2960 and is organized in a time-based way. The issues are listed in the order they were brought up. Because some text is changed several times, the last delta in the text is the one that should be applied. In addition to the delta, a description of the problem and the details of the solution are also provided. This memo provides information for the Internet community.
RFC4459 - MTU and Fragmentation Issues with In-the-Network Tunneling
Tunneling techniques such as IP-in-IP when deployed in the middle of the network, typically between routers, have certain issues regarding how large packets can be handled: whether such packets would be fragmented and reassembled (and how), whether Path MTU Discovery would be used, or how this scenario could be operationally avoided. This memo justifies why this is a common, non-trivial problem, and goes on to describe the different solutions and their characteristics at some length. This memo provides information for the Internet community.
RFC4458 - Session Initiation Protocol (SIP) URIs for Applications such as Voicemail and Interactive Voice Response (IVR)
The Session Initiation Protocol (SIP) is often used to initiate connections to applications such as voicemail or interactive voice recognition systems. This specification describes a convention for forming SIP service URIs that request particular services based on redirecting targets from such applications. This memo provides information for the Internet community.
RFC4457 - The Session Initiation Protocol (SIP) P-User-Database Private-Header (P-Header)
This document specifies the Session Initiation Protocol (SIP) P-User-Database Private-Header (P-header). This header field is used in the 3rd-Generation Partnership Project (3GPP) IMS (IP Multimedia Subsystem) to provide SIP registrars and SIP proxy servers with the address of the database that contains the user profile of the user that generated a particular request. This memo provides information for the Internet community.
RFC4456 - BGP Route Reflection: An Alternative to Full Mesh Internal BGP (IBGP)
The Border Gateway Protocol (BGP) is an inter-autonomous system routing protocol designed for TCP/IP internets. Typically, all BGP speakers within a single AS must be fully meshed so that any external routing information must be re-distributed to all other routers within that Autonomous System (AS). This represents a serious scaling problem that has been well documented with several alternatives proposed.
RFC4455 - Definition of Managed Objects for Small Computer System Interface (SCSI) Entities
This memo defines a portion of the Management Information Base (MIB), for use with network management protocols in the Internet community. In particular, it describes managed objects for Small Computer System Interface (SCSI) entities, independently of the interconnect subsystem layer. [STANDARDS-TRACK]
RFC4454 - Asynchronous Transfer Mode (ATM) over Layer 2 Tunneling Protocol Version 3 (L2TPv3)
The Layer 2 Tunneling Protocol, Version 3 (L2TPv3) defines an extensible tunneling protocol to transport layer 2 services over IP networks. This document describes the specifics of how to use the L2TP control plane for Asynchronous Transfer Mode (ATM) Pseudowires and provides guidelines for transporting various ATM services over an IP network. [STANDARDS-TRACK]
RFC4453 - Requirements for Consent-Based Communications in the Session Initiation Protocol (SIP)
The Session Initiation Protocol (SIP) supports communications across many media types, including real-time audio, video, text, instant messaging, and presence. In its current form, it allows session invitations, instant messages, and other requests to be delivered from one party to another without requiring explicit consent of the recipient. Without such consent, it is possible for SIP to be used for malicious purposes, including spam and denial-of-service attacks. This document identifies a set of requirements for extensions to SIP that add consent-based communications. This memo provides information for the Internet community.
RFC4452 - The "info" URI Scheme for Information Assets with Identifiers in Public Namespaces
This document defines the "info" Uniform Resource Identifier (URI) scheme for information assets with identifiers in public namespaces. Namespaces participating in the "info" URI scheme are regulated by an "info" Registry mechanism. This memo provides information for the Internet community.
RFC4451 - BGP MULTI_EXIT_DISC (MED) Considerations
The BGP MULTI_EXIT_DISC (MED) attribute provides a mechanism for BGP speakers to convey to an adjacent AS the optimal entry point into the local AS. While BGP MEDs function correctly in many scenarios, a number of issues may arise when utilizing MEDs in dynamic or complex topologies.
RFC4450 - Getting Rid of the Cruft: Report from an Experiment in Identifying and Reclassifying Obsolete Standards Documents
This memo documents an experiment to review and classify Proposed Standards as not reflecting documented practice within the world today. The results identify a set of documents that were marked as Proposed Standards that are now reclassified as Historic. This memo provides information for the Internet community.
RFC4449 - Securing Mobile IPv6 Route Optimization Using a Static Shared Key
A mobile node and a correspondent node may preconfigure data useful for precomputing a Binding Management Key that can subsequently be used for authorizing Binding Updates. [STANDARDS-TRACK]
RFC4448 - Encapsulation Methods for Transport of Ethernet over MPLS Networks
An Ethernet pseudowire (PW) is used to carry Ethernet/802.3 Protocol Data Units (PDUs) over an MPLS network. This enables service providers to offer "emulated" Ethernet services over existing MPLS networks. This document specifies the encapsulation of Ethernet/802.3 PDUs within a pseudowire. It also specifies the procedures for using a PW to provide a "point-to-point Ethernet" service. [STANDARDS-TRACK]
RFC4447 - Pseudowire Setup and Maintenance Using the Label Distribution Protocol (LDP)
Layer 2 services (such as Frame Relay, Asynchronous Transfer Mode, and Ethernet) can be "emulated" over an MPLS backbone by encapsulating the Layer 2 Protocol Data Units (PDU) and transmitting them over "pseudowires". It is also possible to use pseudowires to provide low-rate Time Division Multiplexed and a Synchronous Optical NETworking circuit emulation over an MPLS-enabled network. This document specifies a protocol for establishing and maintaining the pseudowires, using extensions to Label Distribution Protocol (LDP). Procedures for encapsulating Layer 2 PDUs are specified in a set of companion documents. [STANDARDS-TRACK]
RFC4446 - IANA Allocations for Pseudowire Edge to Edge Emulation (PWE3)
This document allocates the fixed pseudowire identifier and other fixed protocol values for protocols that have been defined in the Pseudo Wire Edge to Edge (PWE3) working group. Detailed IANA allocation instructions are also included in this document. This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements.
RFC4445 - A Proposed Media Delivery Index (MDI)
This memo defines a Media Delivery Index (MDI) measurement that can be used as a diagnostic tool or a quality indicator for monitoring a network intended to deliver applications such as streaming media, MPEG video, Voice over IP, or other information sensitive to arrival time and packet loss. It provides an indication of traffic jitter, a measure of deviation from nominal flow rates, and a data loss at-a-glance measure for a particular flow. For instance, the MDI may be used as a reference in characterizing and comparing networks carrying UDP streaming media. This memo provides information for the Internet community.
RFC4444 - Management Information Base for Intermediate System to Intermediate System (IS-IS)
This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. Specifically, this document describes a MIB for the Intermediate System to Intermediate System (IS-IS) Routing protocol when it is used to construct routing tables for IP networks. [STANDARDS-TRACK]
RFC4443 - Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification
This document describes the format of a set of control messages used in ICMPv6 (Internet Control Message Protocol). ICMPv6 is the Internet Control Message Protocol for Internet Protocol version 6 (IPv6). [STANDARDS-TRACK]
RFC4442 - Bootstrapping Timed Efficient Stream Loss-Tolerant Authentication (TESLA)
TESLA, the Timed Efficient Stream Loss-tolerant Authentication protocol, provides source authentication in multicast scenarios. TESLA is an efficient protocol with low communication and computation overhead that scales to large numbers of receivers and also tolerates packet loss. TESLA is based on loose time synchronization between the sender and the receivers. Source authentication is realized in TESLA by using Message Authentication Code (MAC) chaining. The use of TESLA within the Secure Real-time Transport Protocol (SRTP) has been published, targeting multicast authentication in scenarios where SRTP is applied to protect the multimedia data. This solution assumes that TESLA parameters are made available by out-of-band mechanisms.
RFC4441 - The IEEE 802/IETF Relationship
Since the late 1980s, IEEE 802 and IETF have cooperated in the development of Simple Network Management Protocol (SNMP) MIBs and Authentication, Authorization, and Accounting (AAA) applications. This document describes the policies and procedures that have developed in order to coordinate between the two organizations, as well as some of the relationship history. This memo provides information for the Internet community.
RFC4440 - IAB Thoughts on the Role of the Internet Research Task Force (IRTF)
This document is an Internet Architecture Board (IAB) report on the role of the Internet Research Task Force (IRTF), both on its own and in relationship to the IETF. This document evolved from a discussion within the IAB as part of a process of appointing a new chair of the IRTF. This memo provides information for the Internet community.
RFC4439 - Fibre Channel Fabric Address Manager MIB
This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it describes managed objects for information related to a Fibre Channel network's Fabric Address Manager. [STANDARDS-TRACK]
RFC4438 - Fibre-Channel Name Server MIB
This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, it describes managed objects for information related to the Name Server function of a Fibre Channel network. The Fibre Channel Name Server provides a means for Fibre Channel ports to register and discover Fibre Channel names and attributes. [STANDARDS-TRACK]
RFC4437 - Web Distributed Authoring and Versioning (WebDAV) Redirect Reference Resources
This specification defines an extension to Web Distributed Authoring and Versioning (WebDAV) to allow clients to author HTTP redirect reference resources whose default response is an HTTP/1.1 3xx (Redirection) status code. A redirect reference makes it possible to access the target resourced indirectly through any URI mapped to the redirect reference resource. This specification does not address remapping of trees of resources or regular expression based redirections. There are no integrity guarantees associated with redirect reference resources. Other mechanisms can also be used to achieve the same functionality as this specification. This specification allows operators to experiment with this mechanism and develop experience on what is the best approach to the problem. This memo defines an Experimental Protocol for the Internet community.
RFC4436 - Detecting Network Attachment in IPv4 (DNAv4)
The time required to detect movement between networks and to obtain (or to continue to use) an IPv4 configuration may be significant as a fraction of the total handover latency in moving between points of attachment. This document synthesizes, from experience in the deployment of hosts supporting ARP, DHCP, and IPv4 Link-Local addresses, a set of steps known as Detecting Network Attachment for IPv4 (DNAv4), in order to decrease the handover latency in moving between points of attachment. [STANDARDS-TRACK]
RFC4435 - A Framework for the Usage of Internet Media Guides (IMGs)
This document defines a framework for the delivery of Internet Media Guides (IMGs). An IMG is a structured collection of multimedia session descriptions expressed using the Session Description Protocol (SDP), SDPng, or some similar session description format. This document describes a generalized model for IMG delivery mechanisms, the use of existing protocols, and the need for additional work to create an IMG delivery infrastructure. This memo provides information for the Internet community.
RFC4434 - The AES-XCBC-PRF-128 Algorithm for the Internet Key Exchange Protocol (IKE)
Some implementations of IP Security (IPsec) may want to use a pseudo-random function derived from the Advanced Encryption Standard (AES). This document describes such an algorithm, called AES-XCBC-PRF-128. [STANDARDS-TRACK]
RFC4433 - Mobile IPv4 Dynamic Home Agent (HA) Assignment
Mobile IPv4 (RFC 3344) uses the home agent (HA) to anchor sessions of a roaming mobile node (MN). This document proposes a messaging mechanism for dynamic home agent assignment and HA redirection. The goal is to provide a mechanism to assign an optimal HA for a Mobile IP session while allowing any suitable method for HA selection. [STANDARDS-TRACK]
RFC4432 - RSA Key Exchange for the Secure Shell (SSH) Transport Layer Protocol
This memo describes a key-exchange method for the Secure Shell (SSH) protocol based on Rivest-Shamir-Adleman (RSA) public-key encryption. It uses much less client CPU time than the Diffie-Hellman algorithm specified as part of the core protocol, and hence is particularly suitable for slow client systems. [STANDARDS-TRACK]
RFC4431 - The DNSSEC Lookaside Validation (DLV) DNS Resource Record
This document defines a new DNS resource record, called the DNSSEC Lookaside Validation (DLV) RR, for publishing DNSSEC trust anchors outside of the DNS delegation chain. This memo provides information for the Internet community.
RFC4430 - Kerberized Internet Negotiation of Keys (KINK)
This document describes the Kerberized Internet Negotiation of Keys (KINK) protocol. KINK defines a low-latency, computationally inexpensive, easily managed, and cryptographically sound protocol to establish and maintain security associations using the Kerberos authentication system. KINK reuses the Quick Mode payloads of the Internet Key Exchange (IKE), which should lead to substantial reuse of existing IKE implementations. [STANDARDS-TRACK]
RFC4429 - Optimistic Duplicate Address Detection (DAD) for IPv6
Optimistic Duplicate Address Detection is an interoperable modification of the existing IPv6 Neighbor Discovery (RFC 2461) and Stateless Address Autoconfiguration (RFC 2462) processes. The intention is to minimize address configuration delays in the successful case, to reduce disruption as far as possible in the failure case, and to remain interoperable with unmodified hosts and routers. [STANDARDS-TRACK]
RFC4428 - Analysis of Generalized Multi-Protocol Label Switching (GMPLS)-based Recovery Mechanisms (including Protection and Restoration)
This document provides an analysis grid to evaluate, compare, and contrast the Generalized Multi-Protocol Label Switching (GMPLS) protocol suite capabilities with the recovery mechanisms currently proposed at the IETF CCAMP Working Group. A detailed analysis of each of the recovery phases is provided using the terminology defined in RFC 4427. This document focuses on transport plane survivability and recovery issues and not on control plane resilience and related aspects. This memo provides information for the Internet community.
RFC4427 - Recovery (Protection and Restoration) Terminology for Generalized Multi-Protocol Label Switching (GMPLS)
This document defines a common terminology for Generalized Multi-Protocol Label Switching (GMPLS)-based recovery mechanisms (i.e., protection and restoration). The terminology is independent of the underlying transport technologies covered by GMPLS. This memo provides information for the Internet community.
RFC4426 - Generalized Multi-Protocol Label Switching (GMPLS) Recovery Functional Specification
This document presents a functional description of the protocol extensions needed to support Generalized Multi-Protocol Label Switching (GMPLS)-based recovery (i.e., protection and restoration). Protocol specific formats and mechanisms will be described in companion documents. [STANDARDS-TRACK]
RFC4425 - RTP Payload Format for Video Codec 1 (VC-1)
This memo specifies an RTP payload format for encapsulating Video Codec 1 (VC-1) compressed bit streams, as defined by the Society of Motion Picture and Television Engineers (SMPTE) standard, SMPTE 421M. SMPTE is the main standardizing body in the motion imaging industry, and the SMPTE 421M standard defines a compressed video bit stream format and decoding process for television. [STANDARDS-TRACK]