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diff --git a/doc/rfc/rfc3795.txt b/doc/rfc/rfc3795.txt new file mode 100644 index 0000000..42a5cee --- /dev/null +++ b/doc/rfc/rfc3795.txt @@ -0,0 +1,2803 @@ + + + + + + +Network Working Group R. Sofia +Request for Comments: 3795 P. Nesser, II +Category: Informational Nesser & Nesser Consulting + June 2004 + + + Survey of IPv4 Addresses in Currently Deployed + IETF Application Area Standards Track and Experimental Documents + +Status of this Memo + + This memo provides information for the Internet community. It does + not specify an Internet standard of any kind. Distribution of this + memo is unlimited. + +Copyright Notice + + Copyright (C) The Internet Society (2004). + +Abstract + + This document describes IPv4 addressing dependencies in an attempt to + clarify the necessary steps in re-designing and re-implementing + specifications to become network address independent, or at least, to + dually support IPv4 and IPv6. This transition requires several + interim steps, one of them being the evolution of current IPv4 + dependent specifications to a format independent of the type of IP + addressing schema used. Hence, it is hoped that specifications will + be re-designed and re-implemented to become network address + independent, or at least to dually support IPv4 and IPv6. + + To achieve that step, it is necessary to survey and document all IPv4 + dependencies experienced by current standards (Full, Draft, and + Proposed) as well as Experimental RFCs. Hence, this document + describes IPv4 addressing dependencies that deployed IETF Application + Area documented Standards may experience. + + + + + + + + + + + + + + + +Sofia & Nesser II Informational [Page 1] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +Table of Contents + + 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 2 + 2. Document Organization. . . . . . . . . . . . . . . . . . . . . 2 + 3. Full Standards . . . . . . . . . . . . . . . . . . . . . . . . 3 + 4. Draft Standards. . . . . . . . . . . . . . . . . . . . . . . . 5 + 5. Proposed Standards . . . . . . . . . . . . . . . . . . . . . . 10 + 6. Experimental RFCs. . . . . . . . . . . . . . . . . . . . . . . 34 + 7. Summary of Results . . . . . . . . . . . . . . . . . . . . . . 45 + 8. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 47 + 9. Security Considerations. . . . . . . . . . . . . . . . . . . . 48 + 10. References . . . . . . . . . . . . . . . . . . . . . . . . . . 48 + 10.1. Normative References. . . . . . . . . . . . . . . . . . 48 + 10.2. Informative References. . . . . . . . . . . . . . . . . 48 + 11. Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . 49 + 12. Full Copyright Statement . . . . . . . . . . . . . . . . . . . 50 + +1. Introduction + + The exhaustive documentation of IPv4 addresses usage in currently + deployed IETF documented standards has now been broken into seven + documents conforming to current IETF main areas, i.e., Applications, + Internet, Operations and Management, Routing, Sub-IP, and Transport. + A general overview of the documentation, as well as followed + methodology and historical perspective can be found in [1]. This + document represents one of the seven blocks, and its scope is limited + to surveying possible IPv4 dependencies in IETF Application Area + documented Standards. + +2. Document Organization + + The remainder sections are organized as follows. Sections 3, 4, 5, + and 6 describe, respectively, the raw analysis of Internet Standards + [2]: + + Full, Draft, and Proposed Standards, and Experimental RFCs. For each + section, standards are analysed by their RFC number, in sequential + order, i.e., from RFC 1 to RFC 3200. Exceptions to this are some + RFCs above RFC 3200. They have been included, given that they + obsoleted RFCs within the range 1-3200. Also, the comments presented + for each RFC are raw in their nature, i.e., each RFC is simply + analysed in terms of possible IPv4 addressing dependencies. Finally, + Section 7 presents a global overview of the data described in the + previous sections, and suggests possible future steps. + + + + + + + +Sofia & Nesser II Informational [Page 2] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +3. Full Standards + + Internet Full Standards have attained the highest level of maturity + on the standards track process. They are commonly referred to as + "Standards", and represent fully technical mature specifications that + are widely implemented and used throughout the Internet. + +3.1. RFC854: Telnet Protocol Specifications + + There are no IPv4 dependencies in this specification. + +3.2. RFC 855: Telnet Option Specifications + + There are no IPv4 dependencies in this specification. + +3.3. RFC 856: Binary Transmission Telnet Option + + There are no IPv4 dependencies in this specification. + +3.4. RFC 857: Echo Telnet Option + + There are no IPv4 dependencies in this specification. + +3.5. RFC 858: Suppress Go Ahead Telnet Option + + There are no IPv4 dependencies in this specification. + +3.6. RFC 859: Status Telnet Option + + There are no IPv4 dependencies in this specification. + +3.7. RFC 860: Timing Mark Telnet Option + + There are no IPv4 dependencies in this specification. + +3.8. RFC 861: Extended Options List Telnet Option + + There are no IPv4 dependencies in this specification. + +3.9. RFC 862: Echo Protocol + + There are no IPv4 dependencies in this specification. + +3.10. RFC 863: Discard Protocol + + There are no IPv4 dependencies in this specification. + + + + + +Sofia & Nesser II Informational [Page 3] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +3.11. RFC 864: Character Generator Protocol + + There are no IPv4 dependencies in this specification. + +3.12. RFC 865: Quote of the Day Protocol + + There are no IPv4 dependencies in this specification. + +3.13. RFC 866: Active Users Protocol + + There are no IPv4 dependencies in this specification. + +3.14. RFC 867: Daytime Protocol + + There are no IPv4 dependencies in this specification. + +3.15. RFC 868: Time Server Protocol + + There are no IPv4 dependencies in this specification. + +3.16. RFC 959: File Transfer Protocol + + Section 4.1.2 (TRANSFER PARAMETER COMMANDS) describes the port + command using the following format: + + "A port command would be: + PORT h1,h2,h3,h4,p1,p2 + where h1 is the high order 8 bits of the internet host + address." + + This is a clear reference to an IPv4 address. In sections 4.2.1 and + 4.2.2, on reply codes, the code: + + "227 Entering Passive Mode (h1,h2,h3,h4,p1,p2)" + + also needs to be reworked for IPv6 addressing. Also, Section 5.3.2 + (FTP COMMAND ARGUMENTS) contains: + + "<host-number> ::= <number>,<number>,<number>,<number> + <port-number> ::= <number>,<number> + <number> ::= any decimal integer 1 through 255" + + This needs to be solved to transition to IPv6. + +3.17. RFC 1350: Trivial File Transfer Protocol + + There are no IPv4 dependencies in this specification. + + + + +Sofia & Nesser II Informational [Page 4] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +3.18. RFC 1870: SMTP Service Extension for Message Size + Declaration + + There are no IPv4 dependencies in this specification. + +3.19. RFC 1939: Post Office Protocol - Version 3 + + There are no IPv4 dependencies in this specification. + +3.20. RFC 2920: SMTP Service Extension for Command Pipelining + + There are no IPv4 dependencies in this specification. + +4. Draft Standards + + Draft Standards is the nomenclature given to specifications that are + on the penultimate maturity level of the IETF standards track + process. They are considered to be final specifications, which may + only experience changes to solve specific problems found. A + specification is only considered to be a Draft Standard if there are + at least two known independent and interoperable implementations. + Hence, Draft Standards are usually quite mature and widely used. + +4.1. RFC 954: NICNAME/WHOIS + + There are no IPv4 dependencies in this specification. + +4.2. RFC 1184: Telnet Linemode Option + + There are no IPv4 dependencies in this specification. + +4.3. RFC 1288: The Finger User Information Protocol + + There are no IPv4 dependencies in this specification. + +4.4. RFC 1305: Network Time Protocol (Version 3) Specification, + Implementation + + Section 3.2.1 (Common Variables) provides the following variable + definitions: + + "Peer Address (peer.peeraddr, pkt.peeraddr), Peer Port + (peer.peerport, pkt.peerport): These are the 32-bit Internet + address and 16-bit port number of the peer. + + + + + + + +Sofia & Nesser II Informational [Page 5] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + + Host Address (peer.hostaddr, pkt.hostaddr), Host Port + (peer.hostport, pkt.hostport): These are the 32-bit Internet + address and 16-bit port number of the host. They are included + among the state variables to support multi-homing." + + Section 3.4.3 (Receive Procedure) defines the following procedure: + + "The source and destination Internet addresses and ports in the IP + and UDP headers are matched to the correct peer. If there is no + match a new instantiation of the protocol machine is created and + the association mobilized." + + Section 3.6 (Access Control Issues) proposes a simple authentication + scheme in the following way: + + "If a more comprehensive trust model is required, the design can + be based on an access-control list with each entry consisting of a + 32-bit Internet address, 32-bit mask and three-bit mode. If the + logical AND of the source address (pkt.peeraddr) and the mask in + an entry matches the corresponding address in the entry and the + mode (pkt.mode) matches the mode in the entry, the access is + allowed; otherwise an ICMP error message is returned to the + requestor. Through appropriate choice of mask, it is possible to + restrict requests by mode to individual addresses, a particular + subnet or net addresses, or have no restriction at all. The + access-control list would then serve as a filter controlling which + peers could create associations." + + Appendix B Section 3 (B.3 Commands) defines the following command: + + "Set Trap Address/Port (6): The command association identifier, + status and data fields are ignored. The address and port number + for subsequent trap messages are taken from the source address and + port of the control message itself. The initial trap counter for + trap response messages is taken from the sequence field of the + command. The response association identifier, status and data + fields are not significant. Implementations should include sanity + timeouts which prevent trap transmissions if the monitoring + program does not renew this information after a lengthy interval." + + The address clearly assumes the IPv4 version. Also, there are + numerous places in sample code and in algorithms that use the above + mentioned variables. It seems that there is no reason to modify the + actual protocol. A small number of textual changes and an update to + implementations, so they can understand both IPv4 and IPv6 addresses, + will suffice to have a NTP version that works on both network layer + protocols. + + + + +Sofia & Nesser II Informational [Page 6] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +4.5. RFC 1575: An Echo Function for CLNP (ISO 8473) + + There are no IPv4 dependencies in this specification. + +4.6. RFC 1652: SMTP Service Extension for 8bit-MIME Transport + + There are no IPv4 dependencies in this specification. + +4.7. RFC 1832: eXternal Data Representation Standard + + There are no IPv4 dependencies in this specification. + +4.8. RFC 2045: Multipurpose Internet Mail Extensions (MIME), + Part One: Format of Internet Message Bodies + + There are no IPv4 dependencies in this specification. + +4.9. RFC 2046: MIME, Part Two: Media Types + + There are no IPv4 dependencies in this specification. + +4.10. RFC 2047: MIME, Part Three: Message Header Extensions + for Non-ASCII Text + + There are no IPv4 dependencies in this specification. + +4.11. RFC 2049: MIME Part Five: Conformance Criteria and + Examples + + There are no IPv4 dependencies in this specification. + +4.12. RFC 2279: UTF-8, a transformation format of ISO 10646 + + There are no IPv4 dependencies in this specification. + +4.13. RFC 2347: TFTP Option Extension + + There are no IPv4 dependencies in this specification. + + + + + + + + + + + + + +Sofia & Nesser II Informational [Page 7] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +4.14. RFC 2348: TFTP Blocksize Option + + Section "Blocksize Option Specification" gives the following example: + + "For example: + + +-------+--------+---+--------+---+--------+---+--------+---+ + | 1 | foobar | 0 | octet | 0 | blksize| 0 | 1428 | 0 | + +-------+--------+---+--------+---+--------+---+--------+---+ + + is a Read Request, for the file named "foobar", in octet (binary) + transfer mode, with a block size of 1428 octets (Ethernet MTU, + less the TFTP, UDP and IP header lengths)." + + Clearly, the given blocksize example would not work with IPv6 header + sizes, but it has no practical implications, since larger blocksizes + are also available. + +4.15. RFC 2349: TFTP Timeout Interval and Transfer Size Options + + There are no IPv4 dependencies in this specification. + +4.16. RFC 2355: TN3270 Enhancements + + There are no IPv4 dependencies in this specification. + +4.17. RFC 2396: Uniform Resource Identifiers (URI): Generic + Syntax + + Section 3.2.2. (Server-based Naming Authority) states: + + "The host is a domain name of a network host, or its IPv4 address + as a set of four decimal digit groups separated by ".". Literal + IPv6 addresses are not supported. + ... + Note: A suitable representation for including a literal IPv6 + address as the host part of a URL is desired, but has not yet been + determined or implemented in practice." + +4.18. RFC 2616: Hypertext Transfer Protocol HTTP/1.1 + + Section 3.2.2 (http URL) states: + + "The "http" scheme is used to locate network resources via the + HTTP protocol. This section defines the scheme-specific syntax + and semantics for http URLs. + + http_URL = "http:" "//" host [ ":" port ] [ abs_path [ "?" query ]] + + + +Sofia & Nesser II Informational [Page 8] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + + If the port is empty or not given, port 80 is assumed. The + semantics are that the identified resource is located at the + server listening for TCP connections on that port of that host, + and the Request-URI for the resource is abs_path (section 5.1.2). + The use of IP addresses in URLs SHOULD be avoided whenever + possible (see RFC 1900 [24])." + + The text is version neutral, but it is unclear whether individual + implementations will support IPv6 addresses. In fact, the use of the + ":"separator in IPv6 addresses will cause misinterpretation when + parsing URI's. There are other discussions regarding a server + recognizing its own IP addresses, spoofing DNS/IP address + combinations, as well as issues regarding multiple HTTP servers + running on a single IP interface. Again, the text is version + neutral, but clearly, such statements represent implementation + issues. + +4.19. RFC 3191: Minimal GSTN address format in Internet Mail + + There are no IPv4 dependencies in this specification. + +4.20. RFC 3192: Minimal FAX address format in Internet Mail + + There are no IPv4 dependencies in this specification. + +4.21. RFC 3282: Content Language Headers + + There are no IPv4 dependencies in this specification. + +4.22. RFC 3461: Simple Mail Transfer Protocol (SMTP) Service + Extension for Delivery Status Notifications + + There are no IPv4 dependencies in this specification. + +4.23. RFC 3462: The Multipart/Report Content Type for the + Reporting of Mail System Administrative Messages + + There are no IPv4 dependencies in this specification. + +4.24. RFC 3463: Enhanced Mail System Status Codes + + There are no IPv4 dependencies in this specification. + +4.25. RFC 3464: An Extensible Message Format for Delivery Status + Notifications + + There are no IPv4 dependencies in this specification. + + + + +Sofia & Nesser II Informational [Page 9] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +5. Proposed Standards + + Proposed Standards represent initial level documents in the IETF + standards track process. They are stable in terms of design, but do + not require the existence of implementations. In several cases, + these specifications are simply proposed as solid technical ideas, to + be analysed by the Internet community, but are never implemented or + advanced in the IETF standards process. + +5.1. RFC 698: Telnet extended ASCII option + + There are no IPv4 dependencies in this specification. + +5.2. RFC 726: Remote Controlled Transmission and Echoing Telnet + option + + There are no IPv4 dependencies in this specification. + +5.3. RFC 727: Telnet logout option + + There are no IPv4 dependencies in this specification. + +5.4. RFC 735: Revised Telnet byte macro option + + There are no IPv4 dependencies in this specification. + +5.5. RFC 736: Telnet SUPDUP option + + There are no IPv4 dependencies in this specification. + +5.6. RFC 749: Telnet SUPDUP-Output option + + There are no IPv4 dependencies in this specification. + +5.7. RFC 779: Telnet send-location option + + There are no IPv4 dependencies in this specification. + +5.8. RFC 885: Telnet end of record option + + There are no IPv4 dependencies in this specification. + +5.9. RFC 927: TACACS user identification Telnet option + + There are no IPv4 dependencies in this specification. + + + + + + +Sofia & Nesser II Informational [Page 10] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +5.10. RFC 933: Output marking Telnet option + + There are no IPv4 dependencies in this specification. + +5.11. RFC 946: Telnet terminal location number option + + Section "TTYLOC Number" states: + + "The TTYLOC number is a 64-bit number composed of two (2) 32-bit + numbers: The 32-bit official ARPA Internet host address (may be + any one of the addresses for multi-homed hosts) and a 32-bit + number representing the terminal on the specified host. The host + address of [0.0.0.0] is defined to be "unknown", the terminal + number of FFFFFFFF (hex, r or-1 in decimal) is defined to be + "unknown" and the terminal number of FFFFFFFE (hex, or -2 in + decimal) is defined to be "detached" for processes that are not + attached to a terminal." + + The clear reference to 32-bit numbers, and to the use of literal + addresses in the form [0.0.0.0] is clearly an IPv4-dependency. Thus, + the text above needs to be re-written. + +5.12. RFC 977: Network News Transfer Protocol + + There are no IPv4 dependencies in this specification. + +5.13. RFC 1041: Telnet 3270 regime option + + There are no IPv4 dependencies in this specification. + +5.14. RFC 1043: Telnet Data Entry Terminal option: DODIIS + implementation + + There are no IPv4 dependencies in this specification. + +5.15. RFC 1053: Telnet X.3 PAD option + + There are no IPv4 dependencies in this specification. + +5.16. RFC 1073: Telnet window size option + + There are no IPv4 dependencies in this specification. + +5.17. RFC 1079: Telnet terminal speed option + + There are no IPv4 dependencies in this specification. + + + + + +Sofia & Nesser II Informational [Page 11] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +5.18. RFC 1091: Telnet terminal-type option + + There are no IPv4 dependencies in this specification. + +5.19. RFC 1096: Telnet X display location option + + There are no IPv4 dependencies in this specification. + +5.20. RFC 1274: The COSINE and Internet X.500 Schema + + There are no IPv4 dependencies in this specification. + +5.21. RFC 1276: Replication and Distributed Operations extensions + to provide an Internet Directory using X.500 + + There are no IPv4 dependencies in this specification. + +5.22. RFC 1314: A File Format for the Exchange of Images in the + Internet + + There are no IPv4 dependencies in this specification. + +5.23. RFC 1328: X.400 1988 to 1984 downgrading + + There are no IPv4 dependencies in this specification. + +5.24. RFC 1372: Telnet Remote Flow Control Option + + There are no IPv4 dependencies in this specification. + +5.25. RFC 1415: FTP-FTAM Gateway Specification + + Since this document defines a gateway for interaction between FTAM + and FTP, the only possible IPv4 dependencies are associated with FTP, + which has already been investigated above, in section 3.16. + +5.26. RFC 1494: Equivalences between 1988 X.400 and RFC-822 + Message Bodies + + There are no IPv4 dependencies in this specification. + +5.27. RFC 1496: Rules for downgrading messages from X.400/88 to + X.400/84 when MIME content-types are present in the messages + + There are no IPv4 dependencies in this specification. + + + + + + +Sofia & Nesser II Informational [Page 12] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +5.28. RFC 1502: X.400 Use of Extended Character Sets + + There are no IPv4 dependencies in this specification. + +5.29. RFC 1572: Telnet Environment Option + + There are no IPv4 dependencies in this specification. + +5.30. RFC 1648: Postmaster Convention for X.400 Operations + + There are no IPv4 dependencies in this specification. + +5.31. RFC 1738: Uniform Resource Locators + + Section 3.1. (Common Internet Scheme Syntax) states: + + "host + The fully qualified domain name of a network host, or its IP + address as a set of four decimal digit groups separated by ".". + Fully qualified domain names take the form as described in + Section 3.5 of RFC 1034 [13] and Section 2.1 of RFC 1123 [4]: a + sequence of domain labels separated by ".", each domain label + starting and ending with an alphanumerical character and + possibly also containing "-" characters. The rightmost domain + label will never start with a digit, though, which + syntactically distinguishes all domain names from the IP + addresses." + + Clearly, this is only valid when using IPv4 addresses. Later in + Section 5. (BNF for specific URL schemes), there is the following + text: + + "; URL schemeparts for ip based protocols: + + ip-schemepart = "//" login [ "/" urlpath ] + + login = [ user [ ":" password ] "@" ] hostport + hostport = host [ ":" port ] + host = hostname | hostnumber" + + Again, this also has implications in terms of IP-version neutrality. + +5.32. RFC 1740: MIME Encapsulation of Macintosh Files - + MacMIME + + There are no IPv4 dependencies in this specification. + + + + + +Sofia & Nesser II Informational [Page 13] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +5.33. RFC 1767: MIME Encapsulation of EDI Objects + + There are no IPv4 dependencies in this specification. + +5.34. RFC 1808: Relative Uniform Resource Locators + + There are no IPv4 dependencies in this specification. + +5.35. RFC 1835: Architecture of the WHOIS++ service + + There are no IPv4 dependencies in this specification. + +5.36. RFC 1913: Architecture of the WHOIS++ Index Service + + Section 6.5. (Query referral) makes the following statement: + + "When referrals are included in the body of a response to a query, + each referral is listed in a separate SERVER-TO-ASK block as shown + below. + +# SERVER-TO-ASK + Version-number: // version number of index software, used to insure + // compatibility + Body-of-Query: // the original query goes here + Server-Handle: // WHOIS++ handle of the referred server + Host-Name: // DNS name or IP address of the referred server + Port-Number: // Port number to which to connect, if different from the + // WHOIS++ port number" + + The syntax used does not present specific IPv4 dependencies, but + implementations should be modified to check, in incoming packets, + which IP version was used by the original request, so they can + determine whether or not to return an IPv6 address. + +5.37. RFC 1914: How to Interact with a Whois++ Mesh + + Section 4 (Caching) states the following: + + "A client can cache all information it gets from a server for some + time. For example records, IP-addresses of Whois++ servers, the + Directory of Services server etc. + + A client can itself choose for how long it should cache the + information. + + The IP-address of the Directory of Services server might not + change for a day or two, and neither might any other information." + + + + +Sofia & Nesser II Informational [Page 14] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + + Also, subsection 4.1. (Caching a Whois++ servers hostname) contains: + + "An example of cached information that might change is the cached + hostname, IP-address and portnumber which a client gets back in a + servers-to-ask response. That information is cached in the server + since the last poll, which might occurred several weeks ago. + Therefore, when such a connection fails, the client should fall + back to use the serverhandle instead, which means that it contacts + the Directory of Services server and queries for a server with + that serverhandle. By doing this, the client should always get + the last known hostname. + + An algorithm for this might be: + + response := servers-to-ask response from server A + IP-address := find ip-address for response.hostname in DNS + connect to ip-address at port response.portnumber + if connection fails { + connect to Directory of Services server + query for host with serverhandle response.serverhandle + response := response from Directory of Services server + IP-address := find ip-address for response.hostname in DNS + connect to ip-address at port response.portnumber + if connection fails { + exit with error message + } + } + Query this new server" + + The paragraph does not contain IPv4 specific syntax. Hence, IPv6 + compliance will be implementation dependent. + +5.38. RFC 1985: SMTP Service Extension for Remote Message + Queue Starting + + There are no IPv4 dependencies in this specification. + +5.39. RFC 2017: Definition of the URL MIME External-Body + Access-Type + + There are no IPv4 dependencies in this specification. + +5.40. RFC 2034: SMTP Service Extension for Returning Enhanced + Error Codes + + There are no IPv4 dependencies in this specification. + + + + + +Sofia & Nesser II Informational [Page 15] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +5.41. RFC 2056: Uniform Resource Locators for Z39.50 + + There are no IPv4 dependencies in this specification. + +5.42. RFC 2077: The Model Primary Content Type for + Multipurpose Internet Mail Extensions + + There are no IPv4 dependencies in this specification. + +5.43. RFC 2079: Definition of an X.500 Attribute Type and an + Object Class to Hold Uniform Resource Identifiers (URIs) + + There are no IPv4 dependencies in this specification. + +5.44. RFC 2086: IMAP4 ACL extension + + There are no IPv4 dependencies in this specification. + +5.45. RFC 2087: IMAP4 QUOTA extension + + There are no IPv4 dependencies in this specification. + +5.46. RFC 2088: IMAP4 non-synchronizing literals + + There are no IPv4 dependencies in this specification. + +5.47. RFC 2122: VEMMI URL Specification + + Section 3 (Description of the VEMMI scheme) states: + + "The VEMMI URL scheme is used to designate multimedia interactive + services conforming to the VEMMI standard (ITU/T T.107 and ETS 300 + 709). + + A VEMMI URL takes the form: + vemmi://<host>:<port>/<vemmiservice>; + <attribute>=<value> + + as specified in Section 3.1. of RFC 1738. If :<port> is omitted, + the port defaults to 575 (client software may choose to ignore the + optional port number in order to increase security). The + <vemmiservice> part is optional and may be omitted." + + IPv4 dependencies may relate to the possibility of the <host> portion + containing an IPv4 address, as defined in RFC 1738 (see section 5.31. + above). Once the problem is solved in the context of RFC 1738, this + issue will be automatically solved. + + + + +Sofia & Nesser II Informational [Page 16] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +5.48. RFC 2141: URN Syntax + + There are no IPv4 dependencies in this specification. + +5.49. RFC 2142: Mailbox Names for Common Services, Roles and + Functions + + There are no IPv4 dependencies in this specification. + +5.50. RFC 2156: MIXER (Mime Internet X.400 Enhanced Relay): + Mapping between X.400 and RFC 822/MIME + + There are no IPv4 dependencies in this specification. + +5.51. RFC 2157: Mapping between X.400 and RFC-822/MIME + Message Bodies + + There are no IPv4 dependencies in this specification. + +5.52. RFC 2158: X.400 Image Body Parts + + There are no IPv4 dependencies in this specification. + +5.53. RFC 2159: A MIME Body Part for FAX + + There are no IPv4 dependencies in this specification. + +5.54. RFC 2160: Carrying PostScript in X.400 and MIME + + There are no IPv4 dependencies in this specification. + +5.55. RFC 2163: Using the Internet DNS to Distribute MIXER + Conformant Global Address Mapping + + There are no IPv4 dependencies in this specification. + +5.56. RFC 2164: Use of an X.500/LDAP directory to support + MIXER address mapping + + There are no IPv4 dependencies in this specification. + +5.57. RFC 2165: Service Location Protocol + + Section 7. (Service Type Request Message Format) and Section 9. + (Service Registration Message Format) have an 80-bit field from + addr-spec (see below) which cannot support IPv6 addresses. Also, + Section 20.1. (Previous Responders' Address Specification) states: + + + + +Sofia & Nesser II Informational [Page 17] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + + "The previous responders' Address Specification is specified as + + <Previous Responders' Address Specification> ::= + <addr-spec> | + <addr-spec>, <Previous Responders' Address Specification> + + i.e., a list separated by commas with no intervening white space. + The Address Specification is the address of the Directory Agent or + Service Agent which supplied the previous response. The format + for Address Specifications in Service Location is defined in + section 20.4. The comma delimiter is required between each + <addr-spec>. The use of dotted decimal IP address notation should + only be used in environments which have no Domain Name Service." + + Later, in Section 20.4. (Address Specification in Service Location) + there is also the following reference to addr-spec: + + "The address specification used in Service Location is: + + <addr-spec> ::= [<user>:<password>@]<host>[:<port>] + + <host> ::= Fully qualified domain name | + dotted decimal IP address notation + + When no Domain Name Server is available, SAs and DAs must use + dotted decimal conventions for IP addresses. Otherwise, it is + preferable to use a fully qualified domain name wherever possible + as renumbering of host addresses will make IP addresses invalid + over time." + + The whole Section 21. (Protocol Requirements) defines the + requirements for each of the elements of this protocol. Several IPv4 + statements are made, but the syntax used is sufficiently neutral to + apply to the use of IPv6. + + Section 22. (Configurable Parameters and Default Values) states: + + "There are several configuration parameters for Service Location. + Default values are chosen to allow protocol operation without the + need for selection of these configuration parameters, but other + values may be selected by the site administrator. The + configurable parameters will allow an implementation of Service + Location to be more useful in a variety of scenarios. + + + + + + + + +Sofia & Nesser II Informational [Page 18] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + + Multicast vs. Broadcast + All Service Location entities must use multicast by default. + The ability to use broadcast messages must be configurable + for UAs and SAs. Broadcast messages are to be used in + environments where not all Service Location entities have + hardware or software which supports multicast. + + Multicast Radius + Multicast requests should be sent to all subnets in a site. + The default multicast radius for a site is 32. This value + must be configurable. The value for the site's multicast + TTL may be obtained from DHCP using an option which is + currently unassigned." + + Once again, nothing here precludes IPv6, Section 23. + + (Non-configurable Parameters) states: + + "IP Port number for unicast requests to Directory Agents: + + UDP and TCP Port Number: 427 + + Multicast Addresses + + Service Location General Multicast Address: 224.0.1.22 + Directory Agent Discovery Multicast Address: 224.0.1.35 + + A range of 1024 contiguous multicast addresses for use as Service + Specific Discovery Multicast Addresses will be assigned by IANA." + + Clearly, the statements above require specifications related to the + use of IPv6 multicast addresses with equivalent functionality. + +5.58. RFC 2177: IMAP4 IDLE command + + There are no IPv4 dependencies in this specification. + +5.59. RFC 2183: Communicating Presentation Information in + Internet Messages: The Content-Disposition Header Field + + There are no IPv4 dependencies in this specification. + +5.60. RFC 2192: IMAP URL Scheme + + The specification has IPv4 dependencies, as RFC 1738, which is + integral to the document, is not IPv6 aware. + + + + + +Sofia & Nesser II Informational [Page 19] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +5.61. RFC 2193: IMAP4 Mailbox Referrals + + Section 6. (Formal Syntax) presents the following statement: + + "referral_response_code = "[" "REFERRAL" 1*(SPACE <url>) "]"; See + [RFC-1738] for <url> definition" + + The above presents dependencies on RFC 1738 URL definitions, which + have already been mentioned in this document, section 5.31. + +5.62. RFC 2218: A Common Schema for the Internet White Pages + Service + + There are no IPv4 dependencies in this specification. + +5.63. RFC 2221: IMAP4 Login Referrals + + Section 4.1. (LOGIN and AUTHENTICATE Referrals) provides the + following example: + + "Example: C: A001 LOGIN MIKE PASSWORD + S: A001 NO [REFERRAL IMAP://MIKE@SERVER2/] Specified + user is invalid on this server. Try SERVER2." + + Even though the syntax "user@SERVER2" is presented often, there are + no specifications related to the format of "SERVER2". Hence, it is + up to individual implementations to determine acceptable values for + the hostname. This may or not include explicit IPv6 addresses. + +5.64. RFC 2227: Simple Hit-Metering and Usage-Limiting for + HTTP + + There are no IPv4 dependencies in this specification. + +5.65. RFC 2231: MIME Parameter Value and Encoded Word + Extensions: Character Sets, Languages, and Continuations + + There are no IPv4 dependencies in this specification. + +5.66. RFC 2234: Augmented BNF for Syntax Specifications: ABNF + + There are no IPv4 dependencies in this specification. + +5.67. RFC 2244: Application Configuration Access Protocol + + There are no IPv4 dependencies in this specification. + + + + + +Sofia & Nesser II Informational [Page 20] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +5.68. RFC 2247: Using Domains in LDAP/X.500 Distinguished + Names + + There are no IPv4 dependencies in this specification. + +5.69. RFC 2251: Lightweight Directory Access Protocol (v3) + + There are no IPv4 dependencies in this specification. + +5.70. RFC 2252: Lightweight Directory Access Protocol (v3): + Attribute Syntax Definitions + + There are no IPv4 dependencies in this specification. + +5.71. RFC 2253: Lightweight Directory Access Protocol (v3): + UTF-8 String Representation of Distinguished Names + + Section 7.1. (Disclosure) states: + + "Distinguished Names typically consist of descriptive information + about the entries they name, which can be people, organizations, + devices or other real-world objects. This frequently includes + some of the following kinds of information: + + - the common name of the object (i.e., a person's full name) + - an email or TCP/IP address + - its physical location (country, locality, city, street address) + - organizational attributes (such as department name or + affiliation)" + + This section requires the caveat "Without putting any limitations on + the version of the IP address.", to avoid ambiguity in terms of IP + version. + +5.72. RFC 2254: The String Representation of LDAP Search Filters + + There are no IPv4 dependencies in this specification. + +5.73. RFC 2255: The LDAP URL Format + + The specification has IPv4 dependencies, as RFC 1738, which is + integral to the document, is not IPv6 aware. + +5.74. RFC 2256: A Summary of the X.500(96) User Schema for use + with LDAPv3 + + There are no IPv4 dependencies in this specification. + + + + +Sofia & Nesser II Informational [Page 21] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +5.75. RFC 2293: Representing Tables and Subtrees in the X.500 + Directory + + There are no IPv4 dependencies in this specification. + +5.76. RFC 2294: Representing the O/R Address hierarchy in the + X.500 Directory Information Tree + + There are no IPv4 dependencies in this specification. + +5.77. RFC 2298: An Extensible Message Format for Message + Disposition Notifications + + There are no IPv4 dependencies in this specification. + +5.78. RFC 2301: File Format for Internet Fax + + There are no IPv4 dependencies in this specification. + +5.79. RFC 2305: A Simple Mode of Facsimile Using Internet Mail + + There are no IPv4 dependencies in this specification. + +5.80. RFC 2334: Server Cache Synchronization Protocol + + Appendix B, part 2.0.1 (Mandatory Common Part) states: + + "Cache Key + This is a database lookup key that uniquely identifies a piece + of data which the originator of a CSA Record wishes to + synchronize with its peers for a given "Protocol ID/Server + Group ID" pair. This key will generally be a small opaque byte + string which SCSP will associate with a given piece of data in + a cache. Thus, for example, an originator might assign a + particular 4 byte string to the binding of an IP address with + that of an ATM address. Generally speaking, the originating + server of a CSA record is responsible for generating a Cache + Key for every element of data that the given server originates + and which the server wishes to synchronize with its peers in + the SG." + + The statement above is simply meant as an example. Hence, any IPv4 + possible dependency of this protocol is an implementation issue. + +5.81. RFC 2342: IMAP4 Namespace + + There are no IPv4 dependencies in this specification. + + + + +Sofia & Nesser II Informational [Page 22] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +5.82. RFC 2359: IMAP4 UIDPLUS extension + + There are no IPv4 dependencies in this specification. + +5.83. RFC 2368: The mailto URL scheme + + There are no IPv4 dependencies in this specification. + +5.84. RFC 2369: The Use of URLs as Meta-Syntax for Core Mail + List Commands and their Transport through Message Header Fields + + There are no IPv4 dependencies in this specification. + +5.85. RFC 2371: Transaction Internet Protocol Version 3.0 + + In section 7. (TIP Transaction Manager Identification and Connection + Establishment): + + "The <hostport> component comprises: + + <host>[:<port>] + + where <host> is either a <dns name> or an <ip address>; and <port> + is a decimal number specifying the port at which the transaction + manager (or proxy) is listening for requests to establish TIP + connections. If the port number is omitted, the standard TIP port + number (3372) is used. + + A <dns name> is a standard name, acceptable to the domain name + service. It must be sufficiently qualified to be useful to the + receiver of the command. + + An <ip address> is an IP address, in the usual form: four decimal + numbers separated by period characters." + + This section has to be re-written to become IP-version neutral. + Besides adding a reference to the use of IPv6 addresses, the "host" + field should only be defined as a "dns name". However, if the use of + literal IP addresses is to be included, the format specified in RFC + 2372 has to be followed. + + Later in section 8. (TIP Uniform Resource Locators): + + "A TIP URL takes the form: + + tip://<transaction manager address>?<transaction string> + + + + + +Sofia & Nesser II Informational [Page 23] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + + where <transaction manager address> identifies the TIP transaction + manager (as defined in Section 7 above); and <transaction string> + specifies a transaction identifier, which may take one of two + forms (standard or non-standard): + + i. "urn:" <NID> ":" <NSS> + + A standard transaction identifier, conforming to the proposed + Internet Standard for Uniform Resource Names (URNs), as + specified by RFC2141; where <NID> is the Namespace Identifier, + and <NSS> is the Namespace Specific String. The Namespace ID + determines the syntactic interpretation of the Namespace + Specific String. The Namespace Specific String is a sequence + of characters representing a transaction identifier (as defined + by <NID>). The rules for the contents of these fields are + specified by [6] (valid characters, encoding, etc.). + + This format of <transaction string> may be used to express + global transaction identifiers in terms of standard + representations. Examples for <NID> might be <iso> or <xopen>. + e.g., + + tip://123.123.123.123/?urn:xopen:xid + + Note that Namespace Ids require registration. See [7] for + details on how to do this." + + There are other references in section 8, regarding the use of literal + IP addresses. Therefore, this section also needs to be re-written, + and special care should be taken to avoid the use of IP (either IPv4 + or IPv6) literal addresses. However, if such use is exemplified, the + format specified in RFC 2732 has to be respected. + +5.86. RFC 2384: POP URL Scheme + + Section 3. (POP Scheme) states: + + "A POP URL is of the general form: + + pop://<user>;auth=<auth>@<host>:<port> + + Where <user>, <host>, and <port> are as defined in RFC 1738, and + some or all of the elements, except "pop://" and <host>, may be + omitted." + + RFC 1738 (please refer to section 5.31) has a potential IPv4 + limitation. Hence, RFC 2384 will only be IPv6 compliant when RFC + 1738 becomes properly updated. + + + +Sofia & Nesser II Informational [Page 24] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +5.87. RFC 2387: The MIME Multipart/Related Content-type + + There are no IPv4 dependencies in this specification. + +5.88. RFC 2388: Returning Values from Forms: multipart/form-data + + There are no IPv4 dependencies in this specification. + +5.89. RFC 2389: Feature negotiation mechanism for the File + Transfer Protocol + + There are no IPv4 dependencies in this specification. + +5.90. RFC 2392: Content-ID and Message-ID Uniform Resource + Locators (CIDMID-URL) + + There are no IPv4 dependencies in this specification. + +5.91. RFC 2397: The "data" URL scheme + + There are no IPv4 dependencies in this specification. + +5.92. RFC 2421: Voice Profile for Internet Mail - version 2 + + There are no IPv4 dependencies in this specification. + +5.93. RFC 2422: Toll Quality Voice - 32 kbit/s ADPCM MIME + Sub-type Registration + + There are no IPv4 dependencies in this specification. + +5.94. RFC 2423: VPIM Voice Message MIME Sub-type Registration + + There are no IPv4 dependencies in this specification. + +5.95. RFC 2424: Content Duration MIME Header Definition + + There are no IPv4 dependencies in this specification. + +5.96. RFC 2425: A MIME Content-Type for Directory Information + + There are no IPv4 dependencies in this specification. + +5.97. RFC 2426: vCard MIME Directory Profile + + There are no IPv4 dependencies in this specification. + + + + + +Sofia & Nesser II Informational [Page 25] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +5.98. RFC 2428: FTP Extensions for IPv6 and NATs + + This RFC documents an IPv6 extension and hence, it is not considered + in the context of the current discussion. + +5.99. RFC 2445: Internet Calendaring and Scheduling Core Object + Specification (iCalendar) + + Section 4.8.4.7 (Unique Identifier) states: + + "Property Name: UID + + Purpose: This property defines the persistent, globally unique + identifier for the calendar component. + + Value Type: TEXT + + Property Parameters: Non-standard property parameters can be + specified on this property. + + Conformance: The property MUST be specified in the "VEVENT", + "VTODO", "VJOURNAL" or "VFREEBUSY" calendar components. + + Description: The UID itself MUST be a globally unique identifier. + The generator of the identifier MUST guarantee that the identifier + is unique. There are several algorithms that can be used to + accomplish this. The identifier is RECOMMENDED to be the + identical syntax to the [RFC 822] addr-spec. A good method to + assure uniqueness is to put the domain name or a domain literal IP + address of the host on which the identifier was created on the + right hand side of the "@", and on the left hand side, put a + combination of the current calendar date and time of day (i.e., + formatted in as a DATE-TIME value) along with some other currently + unique (perhaps sequential) identifier available on the system + (for example, a process id number). Using a date/time value on + the left hand side and a domain name or domain literal on the + right hand side makes it possible to guarantee uniqueness since no + two hosts should be using the same domain name or IP address at + the same time. Though other algorithms will work, it is + RECOMMENDED that the right hand side contain some domain + identifier (either of the host itself or otherwise) such that the + generator of the message identifier can guarantee the uniqueness + of the left hand side within the scope of that domain." + + Although the above does not explicitly state the use of IPv4 + addresses, it addresses the explicit use of RFC 822 (obsoleted by RFC + 2822). To become IPv6 compliant it should follow the guidelines for + RFC 2822 (see section 5.129). + + + +Sofia & Nesser II Informational [Page 26] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +5.100. RFC 2446: iCalendar Transport-Independent Interoperability + Protocol (iTIP) Scheduling Events, BusyTime, To-dos and + Journal Entries + + There are no IPv4 dependencies in this specification. + +5.101. RFC 2447: iCalendar Message-Based Interoperability + Protocol (iMIP) + + There are no IPv4 dependencies in this specification. + +5.102. RFC 2449: POP3 Extension Mechanism + + There are no IPv4 dependencies in this specification. + +5.103. RFC 2476: Message Submission + + This RFC contains several discussions on the usage of IP Address + authorization schemes, but it does not limit those addresses to IPv4. + +5.104. RFC 2480: Gateways and MIME Security Multiparts + + There are no IPv4 dependencies in this specification. + +5.105. RFC 2518: HTTP Extensions for Distributed Authoring + + There are no IPv4 dependencies in this specification. + +5.106. RFC 2530: Indicating Supported Media Features Using + Extensions to DSN and MDN + + There are no IPv4 dependencies in this specification. + +5.107. RFC 2532: Extended Facsimile Using Internet Mail + + There are no IPv4 dependencies in this specification. + +5.108. RFC 2533: A Syntax for Describing Media Feature Sets + + There are no IPv4 dependencies in this specification. + +5.109. RFC 2534: Media Features for Display, Print, and Fax + + There are no IPv4 dependencies in this specification. + +5.110. RFC 2554: SMTP Service Extension for Authentication + + There are no IPv4 dependencies in this specification. + + + +Sofia & Nesser II Informational [Page 27] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +5.111. RFC 2557: MIME Encapsulation of Aggregate Documents, + such as HTML + + There are no IPv4 dependencies in this specification. + +5.112. RFC 2589: Lightweight Directory Access Protocol (v3): + Extensions for Dynamic Directory Services + + There are no IPv4 dependencies in this specification. + +5.113. RFC 2595: Using TLS with IMAP, POP3 and ACAP + + There are no IPv4 dependencies in this specification. + +5.114. RFC 2596: Use of Language Codes in LDAP + + There are no IPv4 dependencies in this specification. + +5.115. RFC 2608: Service Location Protocol, Version 2 + + Section 8.1. (Service Request) contains the following: + + " + 0 1 2 3 + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | Service Location header (function = SrvRqst = 1) | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | length of <PRList> | <PRList> String \ + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | length of <service-type> | <service-type> String \ + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | length of <scope-list> | <scope-list> String \ + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | length of predicate string | Service Request <predicate> \ + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | length of <SLP SPI> string | <SLP SPI> String \ + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + + ... + + <PRList> is the Previous Responder List. This <string-list> + contains dotted decimal notation IP (v4) addresses, and is + iteratively multicast to obtain all possible results (see Section + 6.3). UAs SHOULD implement this discovery algorithm. SAs MUST + use this to discover all available DAs in their scope, if they are + not already configured with DA addresses by some other means." + + + + +Sofia & Nesser II Informational [Page 28] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + + And later: + + "A SA silently drops all requests which include the SA's address + in the <PRList>. An SA which has multiple network interfaces MUST + check if any of the entries in the <PRList> equal any of its + interfaces. An entry in the PRList which does not conform to an + IPv4 dotted decimal address is ignored: The rest of the <PRList> + is processed normally and an error is not returned." + + To become IPv6 compliant, this protocol requires a new version. + +5.116. RFC 2609: Service Templates and Service: Schemes + + Section 2.1. (Service URL Syntax) defines: + + "The ABNF for a service: URL is: + + hostnumber = ipv4-number + ipv4-number = 1*3DIGIT 3("." 1*3DIGIT)" + + This document presents many other references to hostnumber, which + requires an update to support IPv6. + +5.117. RFC 2640: Internationalization of the File Transfer Protocol + + There are no IPv4 dependencies in this specification. + +5.118. RFC 2645: ON-DEMAND MAIL RELAY (ODMR) SMTP + with Dynamic IP Addresses + + There are no IPv4 dependencies in this specification. + +5.119. RFC 2646: The Text/Plain Format Parameter + + There are no IPv4 dependencies in this specification. + +5.120. RFC 2651: The Architecture of the Common Indexing + Protocol (CIP) + + There are no IPv4 dependencies in this specification. + +5.121. RFC 2652: MIME Object Definitions for the Common + Indexing Protocol + + There are no IPv4 dependencies in this specification. + + + + + + +Sofia & Nesser II Informational [Page 29] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +5.122. RFC 2653: CIP Transport Protocols + + There are no IPv4 dependencies in this specification. + +5.123. RFC 2732: Format for Literal IPv6 Addresses in URL's + + This document defines an IPv6 specific protocol and hence, it is not + discussed in this document. + +5.124. RFC 2738: Corrections to "A Syntax for Describing Media + Feature Sets" + + There are no IPv4 dependencies in this specification. + +5.125. RFC 2739: Calendar Attributes for vCard and LDAP + + There are no IPv4 dependencies in this specification. + +5.126. RFC 2806: URLs for Telephone Calls + + There are no IPv4 dependencies in this specification. + +5.127. RFC 2821: Simple Mail Transfer Protocol + + The specification discusses A records at length, and the MX record + handling with the different combinations of A and AAAA records and + IPv4/IPv6-only nodes might cause several kinds of failure modes. + +5.128. RFC 2822: Internet Message Format + + Section 3.4.1 (Addr-spec specification) contains: + + "The domain portion identifies the point to which the mail is + delivered. In the dot-atom form, this is interpreted as an + Internet domain name (either a host name or a mail exchanger name) + as described in [STD3, STD13, STD14]. In the domain-literal form, + the domain is interpreted as the literal Internet address of the + particular host. In both cases, how addressing is used and how + messages are transported to a particular host is covered in the + mail transport document [RFC2821]. These mechanisms are outside + of the scope of this document. + + The local-part portion is a domain dependent string. In + addresses, it is simply interpreted on the particular host as a + name of a particular mailbox." + + + + + + +Sofia & Nesser II Informational [Page 30] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + + Literal IP addresses should be avoided. However, in case they are + used, there should be a reference to the format described in RFC + 2732. + +5.129. RFC 2846: GSTN Address Element Extensions in E-mail + Services + + There are no IPv4 dependencies in this specification. + +5.130. RFC 2849: The LDAP Data Interchange Format (LDIF) - + Technical Specification + + There are no IPv4 dependencies in this specification. + +5.131. RFC 2852: Deliver By SMTP Service Extension + + There are no IPv4 dependencies in this specification. + +5.132. RFC 2879: Content Feature Schema for Internet Fax (V2) + + There are no IPv4 dependencies in this specification. + +5.133. RFC 2891: LDAP Control Extension for Server Side Sorting + of Search Results + + There are no IPv4 dependencies in this specification. + +5.134. RFC 2910: Internet Printing Protocol/1.1: Encoding and + Transport + + There are no IPv4 dependencies in this specification. + +5.135. RFC 2911: Internet Printing Protocol/1.1: Model and + Semantics + + There are no IPv4 dependencies in this specification. + +5.136. RFC 2912: Indicating Media Features for MIME Content + + There are no IPv4 dependencies in this specification. + +5.137. RFC 2913: MIME Content Types in Media Feature + Expressions + + There are no IPv4 dependencies in this specification. + + + + + + +Sofia & Nesser II Informational [Page 31] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +5.138. RFC 2919: List-Id: A Structured Field and Namespace for + the Identification of Mailing Lists + + There are no IPv4 dependencies in this specification. + +5.139. RFC 2938: Identifying Composite Media Features + + There are no IPv4 dependencies in this specification. + +5.140. RFC 2965: HTTP State Management Mechanism + + This document includes several references to host IP addresses, but + there is no explicit mention to a particular protocol version. A + caveat similar to "Without putting any limitations on the version of + the IP address." should be added, so that there will remain no doubts + about possible IPv4 dependencies. + +5.141. RFC 2971: IMAP4 ID extension + + There are no IPv4 dependencies in this specification. + +5.142. RFC 2987: Registration of Charset and Languages Media + Features Tags + + There are no IPv4 dependencies in this specification. + +5.143. RFC 3009: Registration of parityfec MIME types + + There are no IPv4 dependencies in this specification. + +5.144. RFC 3017: XML DTD for Roaming Access Phone Book + + Section 6.2.1. (DNS Server Address) states: + + "The dnsServerAddress element represents the IP address of the + Domain Name Service (DNS) server which should be used when + connected to this POP. + + The address is represented in the form of a string in dotted- + decimal notation (e.g., 192.168.101.1). + + Syntax: + <!-- Domain Name Server IP address --> + <!ELEMENT dnsServerAddress (#PCDATA)> + <!ATTLIST dnsServerAddress + value NOTATION (IPADR) #IMPLIED>" + + + + + +Sofia & Nesser II Informational [Page 32] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + + Additionally, it is stated in Section 6.2.9. (Default Gateway + Address): + + "The defaulttGatewayAddress element represents the address of the + default gateway which should be used when connected to this POP. + The address is represented in the form of a string in dotted- + decimal notation (e.g., 192.168.101.1). + + Syntax: + <!-- Default Gateway IP address (in dotted decimal notation) --> + <!ELEMENT defaultGatewayAddress (#PCDATA)> + <!ATTLIST defaultGatewayAddress + value NOTATION (IPADR) #IMPLIED>" + + It should be straightforward to implement elements that are IPv6 + aware. + +5.145. RFC 3023: XML Media Types + + There are no IPv4 dependencies in this specification. + +5.146. RFC 3028: Sieve: A Mail Filtering Language + + There are no IPv4 dependencies in this specification. + +5.147. RFC 3030: SMTP Service Extensions for Transmission of + Large and Binary MIME Messages + + There are no IPv4 dependencies in this specification. + +5.148. RFC 3049: TN3270E Service Location and Session + Balancing + + There are no IPv4 dependencies in this specification. + +5.149. RFC 3059: Attribute List Extension for the Service Location + Protocol + + There are no IPv4 dependencies in this specification. + +5.150. RFC 3080: The Blocks Extensible Exchange Protocol Core + (BEEP) + + There are no IPv4 dependencies in this specification. + +5.151. RFC 3081: Mapping the BEEP Core onto TCP + + There are no IPv4 dependencies in this specification. + + + +Sofia & Nesser II Informational [Page 33] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +5.152. RFC 3111: Service Location Protocol Modifications for IPv6 + + This is an IPv6 related document and is not discussed in this + document. + +5.153. RFC 3302: Tag Image File Format (TIFF) - image/tiff MIME + Sub-type Registration + + There are no IPv4 dependencies in this specification. + +5.154. RFC 3404: Dynamic Delegation Discovery System (DDDS) + Part Four: The Uniform Resource Identifiers (URI) + Resolution Application + + This specification has no explicit dependency on IPv4. However, when + referring to the URI format specified in RFC 2396 (see section 4.3. + flags, first paragraph), a reference to RFC 2732 should be also + added. + +5.155. RFC 3501: Internet Message Access Protocol - Version 4rev1 + + There are no IPv4 dependencies in this specification. + +6. Experimental RFCs + + Experimental RFCs belong to the category of "non-standard" + specifications. This group involves specifications considered "off- + track", e.g., specifications that haven't yet reach an adequate + standardization level, or that have been superseded by more recent + specifications. + + Experimental RFCs represent specifications that are currently part of + some research effort, and that are often propriety in nature, or used + in limited arenas. They are documented to the Internet community in + order to allow potential interoperability or some other potential + useful scenario. In a few cases, they are presented as alternatives + to the mainstream solution of an acknowledged problem. + +6.1. RFC 887: Resource Location Protocol + + Section 3.1 (Request Messages) contains: + + "<Who-Anywhere-Provides?> + This message parallels the <Who-Provides?> message with the + "third-party" variant described above. The confirming host is + required to return at least its own IP address (if it provides the + named resource) as well as the IP addresses of any other hosts it + believes may provide the named resource. The confirming host + + + +Sofia & Nesser II Informational [Page 34] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + + though, may never return an IP address for a resource which is the + same as an IP address listed with the resource name in the request + message. In this case it must treat the resource as if it was + unsupported at that IP address and omit it from any reply list. + + <Does-Anyone-Provide?> + This message parallels the <Do-You-Provide?> message again with + the "third-party" variant described above. As before, the + confirming host is required to return its own IP address as well + as the IP addresses of any other hosts it believes may provide the + named resource and is prohibited from returning the same IP + address in the reply resource specifier as was listed in the + request resource specifier. As in the <Do-You-Provide?> case and + for the same reason, this message also may not be broadcast." + + Throughout this section, there are several other references to IP + address. To avoid ambiguity, a reference to IPv6 addressing should + be added. + + Section 4.1. (Resource Lists) presents the following qualifier + format: + + "In addition, resource specifiers in all <Who-Anywhere-Provides?>, + <Does-Anyone-Provide?> and <They-Provide> messages also contain an + additional qualifier following the <Protocol-ID>. This qualifier + has the format + + +--------+--------+--------+--------+---//---+ + | | | + |IPLength| IP-Address-List | + | | | + +--------+--------+--------+--------+---//---+ + + where + + <IPLength> + is the number of IP addresses containing in the following <IP- + Address-List> (the <IP-Address-List> field thus occupies the + last 4*<IPLength> octets in its resource specifier). In + request messages, this is the maximum number of qualifying + addresses which may be included in the corresponding reply + resource specifier. Although not particularly useful, it may + be 0 and in that case provides no space for qualifying the + resource name with IP addresses in the returned specifier. In + reply messages, this is the number of qualifying addresses + known to provide the resource. It may not exceed the number + specified in the corresponding request specifier. This field + may not be 0 in a reply message unless it was supplied as 0 in + + + +Sofia & Nesser II Informational [Page 35] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + + the request message and the confirming host would have returned + one or more IP addresses had any space been provided. + + <IP-Address-List> + is a list of four-octet IP addresses used to qualify the + resource specifier with respect to those particular addresses. + In reply messages, these are the IP addresses of the confirming + host (when appropriate) and the addresses of any other hosts + known to provide that resource (subject to the list length + limitations). In request messages, these are the IP addresses + of hosts for which resource information may not be returned. + In such messages, these addresses should normally be + initialized to some "harmless" value (such as the address of + the querying host) unless it is intended to specifically + exclude the supplied addresses from consideration in any reply + messages." + + This section requires re-writing considering the 128-bit length of + IPv6 addresses, and will clearly impact implementations. + +6.2. RFC 909: Loader Debugger Protocol (LDP) + + There are no IPv4 dependencies in this specification. + +6.3. RFC 1143: The Q Method of Implementing TELNET Option + Negotiation + + There are no IPv4 dependencies in this specification. + +6.4. RFC 1153: Digest message format (DMF-MAIL) + + There are no IPv4 dependencies in this specification. + +6.5. RFC 1165: Network Time Protocol (NTP) over the OSI Remote + Operations Service + + The only dependency this protocol presents is included in Appendix A + (ROS Header Format): + + "ClockIdentifier ::= CHOICE { + referenceClock[0] PrintableString, + inetaddr[1] OCTET STRING, + psapaddr[2] OCTET STRING + }" + +6.6. RFC 1176: Interactive Mail Access Protocol: Version 2 + + There are no IPv4 dependencies in this specification. + + + +Sofia & Nesser II Informational [Page 36] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +6.7. RFC 1204: Message Posting Protocol + + There are no IPv4 dependencies in this specification. + +6.8. RFC 1235: Coherent File Distribution Protocol + + Section "Protocol Specification" provides the following example, for + the Initial Handshake: + + "The ticket server replies with a "This is Your Ticket" (TIYT) + packet containing the ticket. Figure 2 shows the format of this + packet. + + 0 1 2 3 + 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | 'T' | 'I' | 'Y' | 'T' | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | "ticket" | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | BLKSZ (by default 512) | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | FILSZ | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | IP address of CFDP server (network order) | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + | client UDP port# (cfdpcln) | server UDP port# (cfdpsrv) | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + + Fig. 2: "This Is Your Ticket" packet." + + This protocol assumes IPv4 multicast, but could be converted to IPv6 + multicast with a little effort. + +6.9. RFC 1279: X.500 and Domains + + This protocol specifies a protocol that assumes IPv4, but does not + actually have any limitations which would limit its operation in an + IPv6 environment. + +6.10. RFC 1312: Message Send Protocol 2 + + There are no IPv4 dependencies in this specification. + +6.11. RFC 1339: Remote Mail Checking Protocol + + There are no IPv4 dependencies in this specification. + + + + +Sofia & Nesser II Informational [Page 37] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +6.12. RFC 1440: SIFT/UFT: Sender-Initiated/Unsolicited File + Transfer + + There are no IPv4 dependencies in this specification. + +6.13. RFC 1459: Internet Relay Chat Protocol + + There are only two specific IPv4 addressing references. The first is + presented in Section 6.2. (Command Response): + + "203 RPL_TRACEUNKNOWN + "???? <class> [<client IP address in dot form>]"" + + The second appears in Section 8.12 (Configuration File): + + "In specifying hostnames, both domain names and use of the 'dot' + notation (127.0.0.1) should both be accepted." + + After correcting the above, IPv6 support can be added + straightforwardly. + + +6.14. RFC 1465: Routing Coordination for X.400 MHS Services + Within a Multi Protocol / Multi Network Environment Table + Format V3 for Static Routing + + There are no IPv4 dependencies in this specification. + +6.15. RFC 1505: Encoding Header Field for Internet Messages + + There are no IPv4 dependencies in this specification. + +6.16. RFC 1528: Principles of Operation for the TPC.INT Subdomain: + Remote Printing -- Technical Procedures + + There are no IPv4 dependencies in this specification. + +6.17. RFC 1608: Representing IP Information in the X.500 + Directory + + There are no IPv4 dependencies in this specification. + +6.18. RFC 1609: Charting Networks in the X.500 Directory + + There are no IPv4 dependencies in this specification. + + + + + + +Sofia & Nesser II Informational [Page 38] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +6.19. RFC 1639: FTP Operation Over Big Address Records + + This document defines a method for overcoming FTP IPv4 limitations + and is therefore both IPv4 and IPv6 aware. + +6.20. RFC 1641: Using Unicode with MIME + + There are no IPv4 dependencies in this specification. + +6.21. RFC 1756: Remote Write Protocol - Version 1.0 + + There are no IPv4 dependencies in this specification. + +6.22. RFC 1801: MHS use of the X.500 Directory to support MHS + Routing + + There are no IPv4 dependencies in this specification. + +6.23. RFC 1804: Schema Publishing in X.500 Directory + + There are no IPv4 dependencies in this specification. + +6.24. RFC 1806: Communicating Presentation Information in + Internet Messages: The Content-Disposition Header + + There are no IPv4 dependencies in this specification. + +6.25. RFC 1845: SMTP Service Extension for Checkpoint/Restart + + There are no IPv4 dependencies in this specification. + +6.26. RFC 1846: SMTP 521 Reply Code + + There are no IPv4 dependencies in this specification. + +6.27. RFC 1873: Message/External-Body Content-ID Access Type + + There are no IPv4 dependencies in this specification. + +6.28. RFC 1874: SGML Media Types + + There are no IPv4 dependencies in this specification. + + + + + + + + + +Sofia & Nesser II Informational [Page 39] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +6.29. RFC 1986: Experiments with a Simple File Transfer Protocol + for Radio Links using Enhanced Trivial File Transfer Protocol + + This protocol is IPv4 dependent, as can be seen from the segment + presented below, taken from Section 2. (PROTOCOL DESCRIPTION): + + "Table 3: ETFTP Data Encapsulation + + +------------+------------+------------+------------+-----------+ + |Ethernet(14)| | |ETFTP/ | | + |SLIP(2) |IP(20) |UDP(8) |NETBLT(24) |DATA(1448) | + |AX.25(20) | | | | | + +------------+------------+------------+------------+-----------+" + +6.30. RFC 2016: Uniform Resource Agents (URAs) + + There are no IPv4 dependencies in this specification. + +6.31. RFC 2066: TELNET CHARSET Option + + There are no IPv4 dependencies in this specification. + +6.32. RFC 2075: IP Echo Host Service + + There are no IPv4 dependencies in this specification. + +6.33. RFC 2090: TFTP Multicast Option + + This protocol is limited to IPv4 multicast. It is expected that a + similar functionality could be implemented on top of IPv6 multicast. + +6.34. RFC 2120: Managing the X.500 Root Naming Context + + There are no IPv4 dependencies in this specification. + +6.35. RFC 2161: A MIME Body Part for ODA + + There are no IPv4 dependencies in this specification. + +6.36. RFC 2162: MaXIM-11 - Mapping between X.400 / Internet + mail and Mail-11 mail + + There are no IPv4 dependencies in this specification. + +6.37. RFC 2169: A Trivial Convention for using HTTP in URN + Resolution + + There are no IPv4 dependencies in this specification. + + + +Sofia & Nesser II Informational [Page 40] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +6.38. RFC 2217: Telnet Com Port Control Option + + There are no IPv4 dependencies in this specification. + +6.39. RFC 2295: Transparent Content Negotiation in HTTP + + There are no IPv4 dependencies in this specification. + +6.40. RFC 2296: HTTP Remote Variant Selection Algorithm + RVSA/1.0 + + There are no IPv4 dependencies in this specification. + +6.41. RFC 2307: An Approach for Using LDAP as a Network + Information Service + + This protocol assumes IPv4 addressing in its schema, as shown in + Section 3. (Attribute definitions): + + "( nisSchema.1.19 NAME 'ipHostNumber' + DESC 'IP address as a dotted decimal, eg. 192.168.1.1, + omitting leading zeros' + EQUALITY caseIgnoreIA5Match + SYNTAX 'IA5String{128}' ) + + ( nisSchema.1.20 NAME 'ipNetworkNumber' + DESC 'IP network as a dotted decimal, eg. 192.168, + omitting leading zeros' + EQUALITY caseIgnoreIA5Match + SYNTAX 'IA5String{128}' SINGLE-VALUE ) + + ( nisSchema.1.21 NAME 'ipNetmaskNumber' + DESC 'IP netmask as a dotted decimal, eg. 255.255.255.0, + omitting leading zeros' + EQUALITY caseIgnoreIA5Match + SYNTAX 'IA5String{128}' SINGLE-VALUE )" + + The document does try to provide some IPv6 support as in Section 5.4. + (Interpreting Hosts and Networks): + + "Hosts with IPv6 addresses MUST be written in their "preferred" form + as defined in section 2.2.1 of [RFC1884], such that all components of + the address are indicated and leading zeros are omitted. This + provides a consistent means of resolving ipHosts by address." + + However, the defined format mentioned above has been replaced, hence + it is no longer valid. + + + + +Sofia & Nesser II Informational [Page 41] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +6.42. RFC 2310: The Safe Response Header Field + + There are no IPv4 dependencies in this specification. + +6.43. RFC 2483: URI Resolution Services Necessary for URN + Resolution + + There are no IPv4 dependencies in this specification. + +6.44. RFC 2567: Design Goals for an Internet Printing Protocol + + There are no IPv4 dependencies in this specification. + +6.45. RFC 2568: Rationale for the Structure of the Model and + Protocol for the Internet Printing Protocol + + There are no IPv4 dependencies in this specification. + +6.46. RFC 2569: Mapping between LPD and IPP Protocols + + There are no IPv4 dependencies in this specification. + +6.47. RFC 2649: An LDAP Control and Schema for Holding + Operation Signatures + + There are no IPv4 dependencies in this specification. + +6.48. RFC 2654: A Tagged Index Object for use in the Common + Indexing Protocol + + There are no IPv4 dependencies in this specification. + +6.49. RFC 2655: CIP Index Object Format for SOIF Objects + + There are no IPv4 dependencies in this specification. + +6.50. RFC 2656: Registration Procedures for SOIF Template Types + + There are no IPv4 dependencies in this specification. + +6.51. RFC 2657: LDAPv2 Client vs. the Index Mesh + + There are no IPv4 dependencies in this specification. + + + + + + + + +Sofia & Nesser II Informational [Page 42] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +6.52. RFC 2756: Hyper Text Caching Protocol + + This specification claims to be both IPv4 and IPv6 aware, but in + Section 2.8. (An HTCP/0.0 AUTH has the following structure), it makes + the following statement: + + "SIGNATURE is a COUNTSTR [3.1] which holds the HMAC-MD5 digest + (see [RFC 2104]), with a B value of 64, of the + following elements, each of which is digested in its + "on the wire" format, including transmitted padding + if any is covered by a field's associated LENGTH: + + IP SRC ADDR [4 octets] + IP SRC PORT [2 octets] + IP DST ADDR [4 octets] + IP DST PORT [2 octets] + HTCP MAJOR version number [1 octet] + HTCP MINOR version number [1 octet] + SIG-TIME [4 octets] + SIG-EXPIRE [4 octets] + HTCP DATA [variable] + KEY-NAME (the whole COUNTSTR [3.1]) [variable]" + + The given SIGNATURE calculation should be expanded to support IPv6 16 + byte addresses. + +6.53. RFC 2774: An HTTP Extension Framework + + There are no IPv4 dependencies in this specification. + +6.54. RFC 2974: Session Announcement Protocol + + This protocol is both IPv4 and IPv6 aware and needs no changes. + +6.55. RFC 3018: Unified Memory Space Protocol Specification + + In section 3.4 (Address Formats), there are explicit references to + IPv4 addressing: + + "The following address format numbers are definite for nodes, + immediately connected to the global IPv4 network: + + N 4-0-0 (4) + N 4-0-1 (4-1) + N 4-0-2 (4-2) + + + + + + +Sofia & Nesser II Informational [Page 43] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + + The appropriate formats of 128-bit addresses: + + Octets: + +0 +1 +2 +3 + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + 0: |0 1 0 0|0 0|0 0| Free | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + 4: | Free | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + 8: | Free | IP address | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + 12:| IP address | Local memory address | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + + + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + 0: |0 1 0 0|0 0|0 1| Free | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + 4: | Free | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + 8: | Free | IP address | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + 12:| IP address | Local memory address | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + + + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + 0: |0 1 0 0|0 0|1 0| Free | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + 4: | Free | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + 8: | IP address | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + 12:| Local memory address | + +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + + Free + + It is not used by the protocol. + + IP address + + It sets the node address in the global IPv4 network." + + This section needs to be re-written, so that the specification + becomes IPv6 compliant. + + + + + +Sofia & Nesser II Informational [Page 44] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +6.56. RFC 3082: Notification and Subscription for SLP + + This protocol is both IPv4 and IPv6 aware, and thus requires no + changes. + +6.57. RFC 3088: OpenLDAP Root Service An experimental LDAP + referral service + + Section 5. (Using the Service) states: + + "The service supports LDAPv3 and LDAPv2+ [LDAPv2+] clients over + TCP/IPv4. Future incarnations of this service may support + TCP/IPv6 or other transport/internet protocols." + +7. Summary of Results + + This survey contemplates 257 RFCs, having 34 (12.84%) been identified + as having some form of IPv4 dependency. Results are broken down as + follows: + + Standards: 1 out of 20 or 5.00% + Draft Standards: 4 out of 25 or 16.00% + Proposed Standards: 19 out of 155 or 12.26% + Experimental RFCs: 10 out of 57 or 17.54% + + Of the 33 identified, the majority simply require minor actions, such + as adding a caveat to IPv6 addressing that would avoid ambiguity, or + re-writing a section to avoid IP-version dependent syntax. The + remaining instances are documented below. The authors have attempted + to organize the results in a format that allows easy referencing by + other protocol designers. + +7.1. Full Standards + +7.1.1. RFC 959: STD 9 File Transfer Protocol + + Problems have already been fixed in [5]. + +7.2. Draft Standards + +7.2.1. RFC 1305: Network Time Protocol (version 3): Specification, + Implementation and Analysis + + As documented in Section 4.4. above, there are too many specific + references to the use of 32-bit IPv4 addresses. An updated + specification to support NTP over IPv6 is needed. However, there has + been some work related with this issue, as an already expired + + + + +Sofia & Nesser II Informational [Page 45] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + + work in progress, allegedly documents. Also, there is at least one + IPv6 NTP implementation. + +7.2.2. RFC 2396: URI Syntax + + URI's allow the literal use of IPv4 addresses but have no specific + recommendations on how to represent literal IPv6 addresses. This + problem has already been addressed in [3]. + +7.2.3. RFC 2616: Hypertext Transfer Protocol HTTP/1.1 + + HTTP allows the literal use of IPv4 addresses, but has no specific + recommendations on how to represent literal IPv6 addresses. This + problem has already been addressed in [3]. + +7.3. Proposed Standards + +7.3.1. RFC 946: Telnet Terminal LOC + + There is a dependency in the definition of the TTYLOC Number which + would require an updated version of the protocol. However, since + this functionality is of marginal value today, an updated version + might not make sense. + +7.3.2. RFC 1738: URLs + + URL's with IPv4 dependencies have already been addressed in [3]. + + Note that these dependencies affect other specifications as well, + such as RFC 2122, RFC 2192, RFC 2193, RFC 2255, RFC 2371, and RFC + 2384. All of these protocols have to revisited, and are not + described separately in this memo. + +7.3.3. RFC 2165: Service Location Protocol + + The problems of this specification have already been addressed in + [4]. + +7.3.4. RFC 2384: POP3 URL Scheme + + POP URL IPv4 dependencies have already been addressed in [3]. + +7.3.5. RFC 2608: Service Location Protocol v2 + + The problems of this specification have already been addressed in + [4]. + + + + + +Sofia & Nesser II Informational [Page 46] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +7.3.6. RFC 2821: Simple Mail Transfer Protocol + + Some textual updates and clarifications to MX processing would likely + be useful. The operational scenarios and guidelines to avoid the + problems have been described in [6]. + +7.3.7. RFC 3017: XML DTP For Roaming Access Phone Books + + Extensions should be defined to support IPv6 addresses. + +7.4. Experimental RFCs + +7.4.1. RFC 1235: The Coherent File Distribution Protocol + + The packet format of this protocol depends on IPv4, and would require + updating to add IPv6 support. However, the protocol is not believed + to be in use, so such an update may not be warranted. + +7.4.2. RFC 1459: Internet Relay Chat Protocol + + This specification only requires a text update to become IPv6 + compliant. + +7.4.3. RFC 1986: Simple File Transfer Using Enhanced TFTP + + This specification only requires a text update to become IPv6 + compliant. + +7.4.4. RFC 2090: TFTP Multicast Option + + This protocol relies on IPv4 IGMP Multicast. To become IPv6 + compliant, a new version should be produced. + +7.4.5. RFC 2307: Using LDAP as a NIS + + This document tries to provide IPv6 support but it relies on an + outdated format for IPv6 addresses. Thus, there is the need for an + IPv6 compliant version. + +8. Acknowledgements + + Phil would like to acknowledge the support of the Internet Society in + the research and production of this document. Additionally, Phil + would like to thank his partner in all ways, Wendy M. Nesser. + + + + + + + +Sofia & Nesser II Informational [Page 47] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +9. Security Considerations + + This document provides an exhaustive documentation of current IETF + documented standards IPv4 address dependencies. Such process does + not have security implications in itself. + +10. References + +10.1. Normative References + + [1] Nesser, II, P. and A. Bergstrom, Editor, "Introduction to the + Survey of IPv4 Addresses in Currently Deployed IETF Standards", + RFC 3789, June 2004. + + [2] Bradner, S., "The Internet Standards Process - version 3", BCP 9, + RFC 2026, October 1996. + +10.2. Informative References + + [3] Hinden, R., Carpenter, B. and L. Masinter, "Format for Literal + IPv6 Addresses in URL's", RFC 2732, December 1999. + + [4] Guttman, E., "Service Location Protocol Modifications for IPv6", + RFC 3111, May 2001. + + [5] Allman, M., Ostermann, S. and C. Metz, "FTP Extensions for IPv6 + and NATs", RFC 2428, September 1998. + + [6] Hagino, J. and M. Nakamura, "SMTP operational experience in mixed + IPv4/IPv6 environements", Work in Progress. + + + + + + + + + + + + + + + + + + + + + +Sofia & Nesser II Informational [Page 48] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +11. Authors' Addresses + + Rute Sofia + FCCN + Av. Brasil, 101 + 1700 Lisboa, Portugal + + Phone: +351 91 2507372 + EMail: rsofia@zmail.pt + + + Philip J. Nesser II + Principal + Nesser & Nesser Consulting + 13501 100th Ave NE, #5202 + Kirkland, WA 98034 + + + Phone: +1 425 481 4303 + Fax: +1 425 482 9721 + EMail: phil@nesser.com + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +Sofia & Nesser II Informational [Page 49] + +RFC 3895 IPv4 Addresses in the IETF Application Area June 2004 + + +12. Full Copyright Statement + + Copyright (C) The Internet Society (2004). This document is subject + to the rights, licenses and restrictions contained in BCP 78, and + except as set forth therein, the authors retain all their rights. + + This document and the information contained herein are provided on an + "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS + OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY AND THE INTERNET + ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, + INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE + INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED + WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. + +Intellectual Property + + The IETF takes no position regarding the validity or scope of any + Intellectual Property Rights or other rights that might be claimed to + pertain to the implementation or use of the technology described in + this document or the extent to which any license under such rights + might or might not be available; nor does it represent that it has + made any independent effort to identify any such rights. Information + on the procedures with respect to rights in RFC documents can be + found in BCP 78 and BCP 79. + + Copies of IPR disclosures made to the IETF Secretariat and any + assurances of licenses to be made available, or the result of an + attempt made to obtain a general license or permission for the use of + such proprietary rights by implementers or users of this + specification can be obtained from the IETF on-line IPR repository at + http://www.ietf.org/ipr. + + The IETF invites any interested party to bring to its attention any + copyrights, patents or patent applications, or other proprietary + rights that may cover technology that may be required to implement + this standard. Please address the information to the IETF at ietf- + ipr@ietf.org. + +Acknowledgement + + Funding for the RFC Editor function is currently provided by the + Internet Society. + + + + + + + + + +Sofia & Nesser II Informational [Page 50] + |