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RFC 3790

Informational
Pages: 49
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Survey of IPv4 Addresses in Currently Deployed IETF Internet Area Standards Track and Experimental Documents

Part 1 of 2, p. 1 to 17
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Network Working Group                                    C. Mickles, Ed.
Request for Comments: 3790
Category: Informational                                    P. Nesser, II
                                              Nesser & Nesser Consulting
                                                               June 2004


            Survey of IPv4 Addresses in Currently Deployed
     IETF Internet 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 seeks to document all usage of IPv4 addresses in
   currently deployed IETF Internet Area documented standards.  In order
   to successfully transition from an all IPv4 Internet to an all IPv6
   Internet, many interim steps will be taken.  One of these steps is
   the evolution of current protocols that have IPv4 dependencies.  It
   is hoped that these protocols (and their implementations) will be
   redesigned to be network address independent, but failing that will
   at least dually support IPv4 and IPv6.  To this end, all Standards
   (Full, Draft, and Proposed) as well as Experimental RFCs will be
   surveyed and any dependencies will be documented.

Table of Contents

   1.   Introduction . . . . . . . . . . . . . . . . . . . . . . . .   9
   2.   Document Organization. . . . . . . . . . . . . . . . . . . .   9
   3.   Full Standards . . . . . . . . . . . . . . . . . . . . . . .   9
        3.1.   RFC 791 Internet Protocol . . . . . . . . . . . . . .   9
        3.2.   RFC 792 Internet Control Message Protocol . . . . . .   9
        3.3.   RFC 826 Ethernet Address Resolution Protocol. . . . .   9
        3.4.   RFC 891 DCN Local-Network Protocols . . . . . . . . .  10
        3.5.   RFC 894 Standard for the transmission of IP datagrams
               over Ethernet networks. . . . . . . . . . . . . . . .  10
        3.6.   RFC 895 Standard for the transmission of IP datagrams
               over experimental Ethernet networks . . . . . . . . .  10
        3.7.   RFC 903 Reverse Address Resolution Protocol . . . . .  10
        3.8.   RFC 919 Broadcasting Internet Datagrams . . . . . . .  10

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        3.9.   RFC 922 Broadcasting Internet datagrams in the
               presence of subnets . . . . . . . . . . . . . . . . .  10
        3.10.  RFC 950 Internet Standard Subnetting Procedure. . . .  10
        3.11.  RFC 1034 Domain Names: Concepts and Facilities. . . .  10
        3.12.  RFC 1035 Domain Names: Implementation and
               Specification  . . . . . . . . . . . . . . . . . . . . 11
        3.13.  RFC 1042 Standard for the transmission of IP datagrams
               over IEEE  802 networks . . . . . . . . . . . . . . .  13
        3.14.  RFC 1044 Internet Protocol on Network System's
               HYPERchannel:  Protocol Specification . . . . . . . .  13
        3.15.  RFC 1055 Nonstandard for transmission of IP datagrams
               over serial lines: SLIP . . . . . . . . . . . . . . .  13
        3.16.  RFC 1088 Standard for the transmission of IP
               datagrams over NetBIOS networks . . . . . . . . . . .  13
        3.17.  RFC 1112 Host Extensions for IP Multicasting. . . . .  13
        3.18.  RFC 1132 Standard for the transmission of 802.2
               packets over IPX networks . . . . . . . . . . . . . .  13
        3.19.  RFC 1201 Transmitting IP traffic over ARCNET
               networks. . . . . . . . . . . . . . . . . . . . . . .  13
        3.20.  RFC 1209 The Transmission of IP Datagrams over the
               SMDS Service. . . . . . . . . . . . . . . . . . . . .  14
        3.21.  RFC 1390 Transmission of IP and ARP over FDDI
               Networks. . . . . . . . . . . . . . . . . . . . . . .  14
        3.22.  RFC 1661 The Point-to-Point Protocol (PPP). . . . . .  14
        3.23.  RFC 1662 PPP in HDLC-like Framing . . . . . . . . . .  14
        3.24.  RFC 2427 Multiprotocol Interconnect over Frame Relay.  14
   4.   Draft Standards  . . . . . . . . . . . . . . . . . . . . . .  14
        4.1.   RFC 951 Bootstrap Protocol (BOOTP). . . . . . . . . .  14
        4.2.   RFC 1188 Proposed Standard for the Transmission of IP
               Datagrams over FDDI Networks. . . . . . . . . . . . .  15
        4.3.   RFC 1191 Path MTU discovery . . . . . . . . . . . . .  15
        4.4.   RFC 1356 Multiprotocol Interconnect on X.25 and ISDN.  15
        4.5.   RFC 1534 Interoperation Between DHCP and BOOTP. . . .  16
        4.6.   RFC 1542 Clarifications and Extensions for the
               Bootstrap Protocol. . . . . . . . . . . . . . . . . .  16
        4.7.   RFC 1629 Guidelines for OSI NSAP Allocation in the
               Internet. . . . . . . . . . . . . . . . . . . . . . .  16
        4.8.   RFC 1762 The PPP DECnet Phase IV Control Protocol
               (DNCP). . . . . . . . . . . . . . . . . . . . . . . .  16
        4.9.   RFC 1989 PPP Link Quality Monitoring. . . . . . . . .  16
        4.10.  RFC 1990 The PPP Multilink Protocol (MP). . . . . . .  16
        4.11.  RFC 1994 PPP Challenge Handshake Authentication
               Protocol (CHAP) . . . . . . . . . . . . . . . . . . .  17
        4.12.  RFC 2067 IP over HIPPI. . . . . . . . . . . . . . . .  17
        4.13.  RFC 2131 Dynamic Host Configuration Protocol. . . . .  17
        4.14.  RFC 2132 DHCP Options and BOOTP Vendor Extensions . .  17
        4.15.  RFC 2390 Inverse Address Resolution Protocol. . . . .  17

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        4.16.  RFC 2460 Internet Protocol, Version 6 (IPv6)
               Specification . . . . . . . . . . . . . . . . . . . .  17
        4.17.  RFC 2461 Neighbor Discovery for IP Version 6 (IPv6) .  18
        4.18.  RFC 2462 IPv6 Stateless Address Autoconfiguration . .  18
        4.19.  RFC 2463 Internet Control Message Protocol (ICMPv6)
               for the  Internet Protocol Version 6 (IPv6)
               Specification. . . . . . . . . . . . . . . . . . . .   18
        4.20.  RFC 3596 DNS Extensions to support IP version 6 . . .  18
   5.   Proposed Standards . . . . . . . . . . . . . . . . . . . . .  18
        5.1.   RFC 1234 Tunneling IPX traffic through IP networks. .  18
        5.2.   RFC 1256 ICMP Router Discovery Messages . . . . . . .  19
        5.3.   RFC 1277 Encoding Network Addresses to Support
               Operation over Non-OSI Lower Layers . . . . . . . . .  19
        5.4.   RFC 1332 The PPP Internet Protocol Control Protocol
               (IPCP). . . . . . . . . . . . . . . . . . . . . . . .  19
        5.5.   RFC 1377 The PPP OSI Network Layer Control Protocol
               (OSINLCP) . . . . . . . . . . . . . . . . . . . . . .  20
        5.6.   RFC 1378 The PPP AppleTalk Control Protocol (ATCP). .  20
        5.7.   RFC 1469 IP Multicast over Token-Ring Local Area
               Networks. . . . . . . . . . . . . . . . . . . . . . .  20
        5.8.   RFC 1552 The PPP Internetworking Packet Exchange
               Control Protocol (IPXCP). . . . . . . . . . . . . . .  20
        5.9.   RFC 1570 PPP LCP Extensions . . . . . . . . . . . . .  20
        5.10.  RFC 1598 PPP in X.25 PPP-X25. . . . . . . . . . . . .  20
        5.11.  RFC 1618 PPP over ISDN. . . . . . . . . . . . . . . .  20
        5.12.  RFC 1663 PPP Reliable Transmission. . . . . . . . . .  20
        5.13.  RFC 1752 The Recommendation for the IP Next
               Generation Protocol . . . . . . . . . . . . . . . . .  20
        5.14.  RFC 1755 ATM Signaling Support for IP over ATM. . . .  20
        5.15.  RFC 1763 The PPP Banyan Vines Control Protocol (BVCP)  21
        5.16.  RFC 1764 The PPP XNS IDP Control Protocol (XNSCP) . .  21
        5.17.  RFC 1973 PPP in Frame Relay . . . . . . . . . . . . .  21
        5.18.  RFC 1981 Path MTU Discovery for IP version 6. . . . .  21
        5.19.  RFC 1982 Serial Number Arithmetic . . . . . . . . . .  21
        5.20.  RFC 1995 Incremental Zone Transfer in DNS . . . . . .  21
        5.21.  RFC 1996 A Mechanism for Prompt Notification of Zone
               Changes (DNS NOTIFY). . . . . . . . . . . . . . . . .  21
        5.22.  RFC 2003 IP Encapsulation within IP . . . . . . . . .  21
        5.23.  RFC 2004 Minimal Encapsulation within IP. . . . . . .  21
        5.24.  RFC 2005 Applicability Statement for IP Mobility
               Support . . . . . . . . . . . . . . . . . . . . . . .  21
        5.25.  RFC 2022 Support for Multicast over UNI 3.0/3.1 based
               ATM Networks. . . . . . . . . . . . . . . . . . . . .  22
        5.26.  RFC 2043 The PPP SNA Control Protocol (SNACP) . . . .  22
        5.27.  RFC 2097 The PPP NetBIOS Frames Control Protocol
               (NBFCP) . . . . . . . . . . . . . . . . . . . . . . .  22
        5.28.  RFC 2113 IP Router Alert Option . . . . . . . . . . .  22

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        5.29.  RFC 2125 The PPP Bandwidth Allocation Protocol (BAP)
               / The PPP Bandwidth Allocation Control Protocol
              (BACP) . . . . . . . . . . . . . . . . . . . . . . . .  22
        5.30.  RFC 2136 Dynamic Updates in the Domain Name System
               (DNS UPDATE). . . . . . . . . . . . . . . . . . . . .  22
        5.31.  RFC 2181 Clarifications to the DNS Specification. . .  22
        5.32.  RFC 2225 Classical IP and ARP over ATM. . . . . . . .  22
        5.33.  RFC 2226 IP Broadcast over ATM Networks . . . . . . .  23
        5.34.  RFC 2241 DHCP Options for Novell Directory Services .  23
        5.35.  RFC 2242 NetWare/IP Domain Name and Information . . .  23
        5.36.  RFC 2290 Mobile-IPv4 Configuration Option for PPP
               IPCP. . . . . . . . . . . . . . . . . . . . . . . . .  24
        5.37.  RFC 2308 Negative Caching of DNS Queries (DNS NCACHE)  24
        5.38.  RFC 2331 ATM Signaling Support for IP over ATM - UNI
               Signaling 4.0 Update. . . . . . . . . . . . . . . . .  24
        5.39.  RFC 2332 NBMA Next Hop Resolution Protocol (NHRP) . .  24
        5.40.  RFC 2333 NHRP Protocol Applicability. . . . . . . . .  24
        5.41.  RFC 2335 A Distributed NHRP Service Using SCSP. . . .  24
        5.42.  RFC 2363 PPP Over FUNI. . . . . . . . . . . . . . . .  24
        5.43.  RFC 2364 PPP Over AAL5. . . . . . . . . . . . . . . .  24
        5.44.  RFC 2371 Transaction Internet Protocol Version 3.0
               (TIPV3) . . . . . . . . . . . . . . . . . . . . . . .  25
        5.45.  RFC 2464 Transmission of IPv6 Packets over Ethernet
               Networks. . . . . . . . . . . . . . . . . . . . . . .  26
        5.46.  RFC 2467 Transmission of IPv6 Packets over FDDI
               Networks. . . . . . . . . . . . . . . . . . . . . . .  26
        5.47.  RFC 2470 Transmission of IPv6 Packets over Token Ring
               Networks. . . . . . . . . . . . . . . . . . . . . . .  26
        5.48.  RFC 2472 IP Version 6 over PPP. . . . . . . . . . . .  26
        5.49.  RFC 2473 Generic Packet Tunneling in IPv6
               Specification . . . . . . . . . . . . . . . . . . . .  26
        5.50.  RFC 2484 PPP LCP Internationalization Configuration
               Option. . . . . . . . . . . . . . . . . . . . . . . .  26
        5.51.  RFC 2485 DHCP Option for The Open Group's User
               Authentication Protocol . . . . . . . . . . . . . . .  27
        5.52.  RFC 2486 The Network Access Identifier. . . . . . . .  27
        5.53.  RFC 2491 IPv6 over Non-Broadcast Multiple Access
               (NBMA) Networks . . . . . . . . . . . . . . . . . . .  27
        5.54.  RFC 2492 IPv6 over ATM Networks . . . . . . . . . . .  27
        5.55.  RFC 2497 Transmission of IPv6 Packets over ARCnet
               Networks. . . . . . . . . . . . . . . . . . . . . . .  27
        5.56.  RFC 2507 IP Header Compression. . . . . . . . . . . .  27
        5.57.  RFC 2526 Reserved IPv6 Subnet Anycast Addresses . . .  27
        5.58.  RFC 2529 Transmission of IPv6 over IPv4 Domains
               without Explicit Tunnels. . . . . . . . . . . . . . .  27
        5.59.  RFC 2563 DHCP Option to Disable Stateless
               Auto-Configuration in IPv4 Clients. . . . . . . . . .  27

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        5.60.  RFC 2590 Transmission of IPv6 Packets over Frame
               Relay Networks Specification. . . . . . . . . . . . .  28
        5.61.  RFC 2601 ILMI-Based Server Discovery for ATMARP . . .  28
        5.62.  RFC 2602 ILMI-Based Server Discovery for MARS . . . .  28
        5.63.  RFC 2603 ILMI-Based Server Discovery for NHRP . . . .  28
        5.64.  RFC 2610 DHCP Options for Service Location Protocol .  28
        5.65.  RFC 2615 PPP over SONET/SDH . . . . . . . . . . . . .  28
        5.66.  RFC 2625 IP and ARP over Fibre Channel. . . . . . . .  28
        5.67.  RFC 2661 Layer Two Tunneling Protocol (L2TP). . . . .  28
        5.68.  RFC 2671 Extension Mechanisms for DNS (EDNS0) . . . .  28
        5.69.  RFC 2672 Non-Terminal DNS Name Redirection. . . . . .  29
        5.70.  RFC 2673 Binary Labels in the Domain Name System. . .  29
        5.71.  RFC 2675 IPv6 Jumbograms. . . . . . . . . . . . . . .  29
        5.72.  RFC 2684 Multiprotocol Encapsulation over ATM
               Adaptation Layer 5. . . . . . . . . . . . . . . . . .  29
        5.73.  RFC 2685 Virtual Private Networks Identifier. . . . .  29
        5.74.  RFC 2686 The Multi-Class Extension to Multi-Link PPP.  29
        5.75.  RFC 2687 PPP in a Real-time Oriented HDLC-like
               Framing . . . . . . . . . . . . . . . . . . . . . . .  29
        5.76.  RFC 2688 Integrated Services Mappings for Low Speed
               Networks. . . . . . . . . . . . . . . . . . . . . . .  29
        5.77.  RFC 2710 Multicast Listener Discovery (MLD) for IPv6.  29
        5.78.  RFC 2711 IPv6 Router Alert Option . . . . . . . . . .  29
        5.79.  RFC 2728 The Transmission of IP Over the Vertical
               Blanking Interval of a Television Signal. . . . . . .  30
        5.80.  RFC 2734 IPv4 over IEEE 1394. . . . . . . . . . . . .  30
        5.81.  RFC 2735 NHRP Support for Virtual Private Networks. .  30
        5.82.  RFC 2765 Stateless IP/ICMP Translation Algorithm
               (SIIT). . . . . . . . . . . . . . . . . . . . . . . .  30
        5.83.  RFC 2766 Network Address Translation - Protocol
               Translation (NAT-PT). . . . . . . . . . . . . . . . .  30
        5.84.  RFC 2776 Multicast-Scope Zone Announcement Protocol
               (MZAP). . . . . . . . . . . . . . . . . . . . . . . .  31
        5.85.  RFC 2782 A DNS RR for specifying the location of
               services. . . . . . . . . . . . . . . . . . . . . . .  31
        5.86.  RFC 2794 Mobile IP Network Access Identifier
               Extension for IPv4. . . . . . . . . . . . . . . . . .  31
        5.87.  RFC 2834 ARP and IP Broadcast over HIPPI-800. . . . .  31
        5.88.  RFC 2835 IP and ARP over HIPPI-6400 . . . . . . . . .  33
        5.89.  RFC 2855 DHCP for IEEE 1394 . . . . . . . . . . . . .  33
        5.90.  RFC 2874 DNS Extensions to Support IPv6 Address
               Aggregation and Renumbering . . . . . . . . . . . . .  33
        5.91.  RFC 2893 Transition Mechanisms for IPv6 Hosts and
               Routers . . . . . . . . . . . . . . . . . . . . . . .  33
        5.92.  RFC 2916 E.164 number and DNS . . . . . . . . . . . .  33
        5.93.  RFC 2937 The Name Service Search Option for DHCP. . .  33
        5.94.  RFC 3004 The User Class Option for DHCP . . . . . . .  33
        5.95.  RFC 3011 The IPv4 Subnet Selection Option for DHCP. .  33

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        5.96.  RFC 3021 Using 31-Bit Prefixes for IPv4 P2P Links . .  33
        5.97.  RFC 3024 Reverse Tunneling for Mobile IP, revised . .  34
        5.98.  RFC 3046 DHCP Relay Agent Information Option. . . . .  34
        5.99.  RFC 3056 Connection of IPv6 Domains via IPv4 Clouds .  34
        5.100. RFC 3068 An Anycast Prefix for 6to4 Relay Routers . .  34
        5.101. RFC 3070 Layer Two Tunneling Protocol (L2TP) over
               Frame Relay . . . . . . . . . . . . . . . . . . . . .  34
        5.102. RFC 3074 DHC Load Balancing Algorithm . . . . . . . .  34
        5.103. RFC 3077 A Link-Layer Tunneling Mechanism for
               Unidirectional Links. . . . . . . . . . . . . . . . .  34
        5.104. RFC 3115 Mobile IP Vendor/Organization-Specific
               Extensions. . . . . . . . . . . . . . . . . . . . . .  34
        5.105. RFC 3145 L2TP Disconnect Cause Information. . . . . .  34
        5.106. RFC 3344 IP Mobility Support for IPv4 . . . . . . . .  34
        5.107. RFC 3376 Internet Group Management Protocol,
               Version 3 . . . . . . . . . . . . . . . . . . . . . .  35
        5.108. RFC 3402 Dynamic Delegation Discovery System (DDDS)
               Part Two: The Algorithm . . . . . . . . . . . . . . .  35
        5.109. RFC 3403 Dynamic Delegation Discovery System (DDDS)
               Part Three:  The Domain Name System (DNS) Database. .  35
        5.110. RFC 3513 IP Version 6 Addressing Architecture . . . .  35
        5.111. RFC 3518 Point-to-Point Protocol (PPP) Bridging
               Control Protocol (BCP). . . . . . . . . . . . . . . .  35
   6.   Experimental RFCs. . . . . . . . . . . . . . . . . . . . . .  35
        6.1.   RFC 1149 Standard for the transmission of IP
               datagrams on avian carriers . . . . . . . . . . . . .  35
        6.2.   RFC 1183 New DNS RR Definitions . . . . . . . . . . .  35
        6.3.   RFC 1226 Internet protocol encapsulation of AX.25
               frames. . . . . . . . . . . . . . . . . . . . . . . .  36
        6.4.   RFC 1241 Scheme for an internet encapsulation
               protocol: Version 1 . . . . . . . . . . . . . . . . .  36
        6.5.   RFC 1307 Dynamically Switched Link Control Protocol .  36
        6.6.   RFC 1393 Traceroute Using an IP Option. . . . . . . .  36
        6.7.   RFC 1433 Directed ARP . . . . . . . . . . . . . . . .  36
        6.8.   RFC 1464 Using the Domain Name System To Store
               Arbitrary String Attributes . . . . . . . . . . . . .  37
        6.9.   RFC 1475 TP/IX: The Next Internet . . . . . . . . . .  37
        6.10.  RFC 1561 Use of ISO CLNP in TUBA Environments . . . .  37
        6.11.  RFC 1712 DNS Encoding of Geographical Location. . . .  37
        6.12.  RFC 1735 NBMA Address Resolution Protocol (NARP). . .  37
        6.13.  RFC 1768 Host Group Extensions for CLNP Multicasting.  38
        6.14.  RFC 1788 ICMP Domain Name Messages. . . . . . . . . .  38
        6.15.  RFC 1797 Class A Subnet Experiment. . . . . . . . . .  38
        6.16.  RFC 1819 Internet Stream Protocol Version 2 (ST2)
               Protocol Specification - Version ST2+ . . . . . . . .  39
        6.17.  RFC 1868 ARP Extension - UNARP. . . . . . . . . . . .  39
        6.18.  RFC 1876 A Means for Expressing Location Information
               in the Domain Name System . . . . . . . . . . . . . .  39

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        6.19.  RFC 1888 OSI NSAPs and IPv6 . . . . . . . . . . . . .  39
        6.20.  RFC 2009 GPS-Based Addressin and Routing. . . . . . .  39
        6.21.  RFC 2143 Encapsulating IP with the SCSI . . . . . . .  39
        6.22.  RFC 2345 Domain Names and Company Name Retrieval. . .  40
        6.23.  RFC 2443 A Distributed MARS Service Using SCSP. . . .  40
        6.24.  RFC 2471 IPv6 Testing Address Allocation. . . . . . .  40
        6.25.  RFC 2520 NHRP with Mobile NHCs. . . . . . . . . . . .  40
        6.26.  RFC 2521 ICMP Security Failures Messages. . . . . . .  40
        6.27.  RFC 2540 Detached Domain Name System (DNS)
               Information . . . . . . . . . . . . . . . . . . . . .  40
        6.28.  RFC 2823 PPP over Simple Data Link (SDL) using
               SONET/SDH with ATM-like framing . . . . . . . . . . .  40
        6.29.  RFC 3123 A DNS RR Type for Lists of Address Prefixes.  40
        6.30.  RFC 3168 The Addition of Explicit Congestion
               Notification  (ECN) to IP . . . . . . . . . . . . . .  40
        6.31.  RFC 3180 GLOP Addressing in 233/8 . . . . . . . . . .  40
   7.   Summary of the Results . . . . . . . . . . . . . . . . . . .  41
        7.1.   Standards . . . . . . . . . . . . . . . . . . . . . .  41
               7.1.1.  RFC 791 Internet Protocol . . . . . . . . . .  41
               7.1.2.  RFC 792 Internet Control Message Protocol . .  41
               7.1.3.  RFC 891 DCN Networks. . . . . . . . . . . . .  41
               7.1.4.  RFC 894 IP over Ethernet. . . . . . . . . . .  41
               7.1.5.  RFC 895 IP over experimental Ethernets. . . .  41
               7.1.6.  RFC 922 Broadcasting Internet Datagrams in
                       the Presence of Subnets . . . . . . . . . . .  41
               7.1.7.  RFC 950 Internet Standard Subnetting
                       Procedure.  . . . . . . . . . . . . . . . . .  42
               7.1.8.  RFC 1034 Domain Names: Concepts and
                       Facilities. . . . . . . . . . . . . . . . . .  42
               7.1.9.  RFC 1035 Domain Names: Implementation and
                       Specification . . . . . . . . . . . . . . . .  42
               7.1.10. RFC 1042 IP over IEEE 802 . . . . . . . . . .  42
               7.1.11. RFC 1044 IP over HyperChannel . . . . . . . .  42
               7.1.12. RFC 1088 IP over NetBIOS. . . . . . . . . . .  42
               7.1.13. RFC 1112 Host Extensions for IP Multicast . .  42
               7.1.14. RFC 1122 Requirements for Internet Hosts. . .  42
               7.1.15. RFC 1201 IP over ARCNET . . . . . . . . . . .  42
               7.1.16. RFC 1209 IP over SMDS . . . . . . . . . . . .  43
               7.1.17. RFC 1390 Transmission of IP and ARP over FDDI
                       Networks. . . . . . . . . . . . . . . . . . .  43
        7.2.   Draft Standards . . . . . . . . . . . . . . . . . . .  43
               7.2.1.  RFC 951 Bootstrap Protocol (BOOTP). . . . . .  43
               7.2.2.  RFC 1191 Path MTU Discovery . . . . . . . . .  43
               7.2.3.  RFC 1356 Multiprotocol Interconnect on X.25
                       and ISDN. . . . . . . . . . . . . . . . . . .  43
               7.2.4.  RFC 1990 The PPP Multilink Protocol (MP). . .  43
               7.2.5.  RFC 2067 IP over HIPPI. . . . . . . . . . . .  43
               7.2.6.  RFC 2131 DHCP . . . . . . . . . . . . . . . .  43

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        7.3.   Proposed Standards. . . . . . . . . . . . . . . . . .  44
               7.3.1.  RFC 1234 Tunneling IPX over IP. . . . . . . .  44
               7.3.2.  RFC 1256 ICMP Router Discovery. . . . . . . .  44
               7.3.3.  RFC 1277 Encoding Net Addresses to Support
                       Operation Over Non OSI Lower Layers . . . . .  44
               7.3.4.  RFC 1332 PPP Internet Protocol Control
                       Protocol (IPCP) . . . . . . . . . . . . . . .  44
               7.3.5.  RFC 1469 IP Multicast over Token Ring . . . .  44
               7.3.6.  RFC 2003 IP Encapsulation within IP . . . . .  44
               7.3.7.  RFC 2004 Minimal Encapsulation within IP. . .  44
               7.3.8.  RFC 2022 Support for Multicast over UNI
                       3.0/3.1 based ATM Networks. . . . . . . . . .  44
               7.3.9.  RFC 2113 IP Router Alert Option . . . . . . .  45
               7.3.10. RFC 2165 SLP. . . . . . . . . . . . . . . . .  45
               7.3.11. RFC 2225 Classical IP & ARP over ATM. . . . .  45
               7.3.12. RFC 2226 IP Broadcast over ATM. . . . . . . .  45
               7.3.13. RFC 2371 Transaction IPv3 . . . . . . . . . .  45
               7.3.14. RFC 2625 IP and ARP over Fibre Channel. . . .  45
               7.3.15. RFC 2672 Non-Terminal DNS Redirection . . . .  45
               7.3.16. RFC 2673 Binary Labels in DNS . . . . . . . .  45
               7.3.17. IP over Vertical Blanking Interval of a TV
                       Signal (RFC 2728) . . . . . . . . . . . . . .  45
               7.3.18. RFC 2734 IPv4 over IEEE 1394. . . . . . . . .  45
               7.3.19. RFC 2834 ARP & IP Broadcasts Over HIPPI 800 .  46
               7.3.20. RFC 2835 ARP & IP Broadcasts Over HIPPI 6400.  46
               7.3.21. RFC 3344 Mobility Support for IPv4. . . . . .  46
               7.3.22. RFC 3376 Internet Group Management Protocol,
                       Version 3 . . . . . . . . . . . . . . . . . .  46
        7.4.   Experimental RFCs . . . . . . . . . . . . . . . . . .  46
               7.4.1.  RFC 1307 Dynamically Switched Link Control
                       Protocol. . . . . . . . . . . . . . . . . . .  46
               7.4.2.  RFC 1393 Traceroute using an IP Option. . . .  46
               7.4.3.  RFC 1735 NBMA Address Resolution Protocol
                       (NARP). . . . . . . . . . . . . . . . . . . .  46
               7.4.4.  RFC 1788 ICMP Domain Name Messages. . . . . .  46
               7.4.5.  RFC 1868 ARP Extension - UNARP. . . . . . . .  47
               7.4.6.  RFC 2143 IP Over SCSI . . . . . . . . . . . .  47
               7.4.7.  RFC 3180 GLOP Addressing in 233/8 . . . . . .  47
   8.   Security Considerations  . . . . . . . . . . . . . . . . . .  47
   9.   Acknowledgements . . . . . . . . . . . . . . . . . . . . . .  47
   10.  References . . . . . . . . . . . . . . . . . . . . . . . . .  47
        10.1.  Normative References. . . . . . . . . . . . . . . . .  47
        10.2.  Informative References . . . . . . . . . . . . . . .   48
   11.  Authors' Addresses . . . . . . . . . . . . . . . . . . . . .  48
   12.  Full Copyright Statement . . . . . . . . . . . . . . . . . .  49

Top      ToC       Page 9 
1.  Introduction

   This document is part of a document set aiming to document all usage
   of IPv4 addresses in IETF standards.  In an effort to have the
   information in a manageable form, it has been broken into 7 documents
   conforming to the current IETF areas (Application, Internet,
   Management & Operations, Routing, Security, Sub-IP and Transport).

   This specific document focuses on usage of IPv4 addresses within the
   Internet area.

   For a full introduction, please see the introduction [1] document.

2.  Document Organization

   The following sections 3, 4, 5, and 6 each describe the raw analysis
   of Full, Draft, and Proposed Standards, and Experimental RFCs.  Each
   RFC is discussed in turn starting with RFC 1 and ending in (about)
   RFC 3100.  The comments for each RFC are "raw" in nature.  That is,
   each RFC is discussed in a vacuum and problems or issues discussed do
   not "look ahead" to see if any of the issues raised have already been
   fixed.

   Section 7 is an analysis of the data presented in Sections 3, 4, 5,
   and 6.  It is here that all of the results are considered as a whole
   and the problems that have been resolved in later RFCs are
   correlated.

3.  Full Standards

   Full Internet Standards (most commonly simply referred to as
   "Standards") are fully mature protocol specification that are widely
   implemented and used throughout the Internet.

3.1.  RFC 791 Internet Protocol

   This specification defines IPv4; IPv6 has been specified in separate
   documents.

3.2.  RFC 792 Internet Control Message Protocol

   This specification defines ICMP, and is inherently IPv4 dependent.

3.3.  RFC 826 Ethernet Address Resolution Protocol

   There are no IPv4 dependencies in this specification.

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3.4.  RFC 891 DCN Local-Network Protocols

   There are many implicit assumptions about the use of IPv4 addresses
   in this document.

3.5.  RFC 894 Standard for the transmission of IP datagrams over
      Ethernet networks

   This specification specifically deals with the transmission of IPv4
   packets over Ethernet.

3.6.  RFC 895 Standard for the transmission of IP datagrams over
      experimental Ethernet networks

   This specification specifically deals with the transmission of IPv4
   packets over experimental Ethernet.

3.7.  RFC 903 Reverse Address Resolution Protocol

   There are no IPv4 dependencies in this specification.

3.8.  RFC 919 Broadcasting Internet Datagrams

   This specification defines broadcasting for IPv4; IPv6 uses multicast
   so this is not applicable.

3.9.  RFC 922 Broadcasting Internet datagrams in the presence of subnets

   This specification defines how broadcasts should be treated in the
   presence of subnets.  IPv6 uses multicast so this is not applicable.

3.10.  RFC 950 Internet Standard Subnetting Procedure

   This specification defines IPv4 subnetting; similar functionality is
   part of IPv6 addressing architecture to begin with.

3.11.  RFC 1034 Domain Names: Concepts and Facilities

   In Section 3.6, "Resource Records", the definition of A record is:

      RDATA           which is the type and sometimes class dependent
                      data which describes the resource:

                      A          For the IN class, a 32 bit IP address

Top      ToC       Page 11 
   And Section 5.2.1, "Typical functions" defines:

   1. Host name to host address translation.

      This function is often defined to mimic a previous HOSTS.TXT based
      function.  Given a character string, the caller wants one or more
      32 bit IP addresses.  Under the DNS, it translates into a request
      for type A RRs.  Since the DNS does not preserve the order of RRs,
      this function may choose to sort the returned addresses or select
      the "best" address if the service returns only one choice to the
      client.  Note that a multiple address return is recommended, but a
      single address may be the only way to emulate prior HOSTS.TXT
      services.

   2. Host address to host name translation

      This function will often follow the form of previous functions.
      Given a 32 bit IP address, the caller wants a character string.
      The octets of the IP address are reversed, used as name
      components, and suffixed with "IN-ADDR.ARPA".  A type PTR query is
      used to get the RR with the primary name of the host.  For
      example, a request for the host name corresponding to IP address
      1.2.3.4 looks for PTR RRs for domain name "4.3.2.1.IN-ADDR.ARPA".

   There are, of course, numerous examples of IPv4 addresses scattered
   throughout the document.

3.12.  RFC 1035 Domain Names: Implementation and Specification

   Section 3.4.1, "A RDATA format", defines the format for A records:

      +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
      |                    ADDRESS                    |
      +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+

    where:

    ADDRESS         A 32 bit Internet address.

    Hosts that have multiple Internet addresses will have multiple A
    records.

    A records cause no additional section processing.  The RDATA section
    of an A line in a master file is an Internet address expressed as
    four decimal numbers separated by dots without any embedded spaces
    (e.g.,"10.2.0.52" or "192.0.5.6").

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   And Section 3.4.2, "WKS RDATA", format is:

      +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
      |                    ADDRESS                    |
      +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
      |       PROTOCOL        |                       |
      +--+--+--+--+--+--+--+--+                       |
      |                                               |
      /                   <BIT MAP>                   /

      /                                               /
      +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+

    where:

    ADDRESS         An 32 bit Internet address

    PROTOCOL        An 8 bit IP protocol number

    <BIT MAP>       A variable length bit map.  The bit map
                    must be a multiple of 8 bits long.

    The WKS record is used to describe the well known services supported
    by a particular protocol on a particular internet address.  The
    PROTOCOL field specifies an IP protocol number, and the bit map has
    one bit per port of the specified protocol.  The first bit
    corresponds to port 0, the second to port 1, etc.  If the bit map
    does not include a bit for a protocol of interest, that bit is
    assumed zero.  The appropriate values and mnemonics for ports and
    protocols are specified in RFC1010.

    For example, if PROTOCOL=TCP (6), the 26th bit corresponds to TCP
    port 25 (SMTP).  If this bit is set, a SMTP server should be
    listening on TCP port 25; if zero, SMTP service is not supported on
    the specified address.

    The purpose of WKS RRs is to provide availability information for
    servers for TCP and UDP.  If a server supports both TCP and UDP, or
    has multiple Internet addresses, then multiple WKS RRs are used.

    WKS RRs cause no additional section processing.

   Section 3.5, "IN-ADDR.ARPA domain", describes reverse DNS lookups and
   is clearly IPv4 dependent.

   There are, of course, numerous examples of IPv4 addresses scattered
   throughout the document.

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3.13.  RFC 1042 Standard for the transmission of IP datagrams over IEEE
       802 networks

   This specification specifically deals with the transmission of IPv4
   packets over IEEE 802 networks.

3.14.  RFC 1044 Internet Protocol on Network System's HYPERchannel:
       Protocol Specification

   There are a variety of methods used in this standard to map IPv4
   addresses to 32 bits fields in the HYPERchannel headers.  This
   specification does not support IPv6.

3.15.  RFC 1055 Nonstandard for transmission of IP datagrams over serial
       lines: SLIP

   This specification is more of an analysis of the shortcomings of SLIP
   which is unsurprising.  The introduction of PPP as a general
   replacement of SLIP has made this specification essentially unused.
   No update need be considered.

3.16.  RFC 1088 Standard for the transmission of IP datagrams over
       NetBIOS networks

   This specification documents a technique to encapsulate IP packets
   inside NetBIOS packets.

   The technique presented of using NetBIOS names of the form
   IP.XX.XX.XX.XX will not work for IPv6 addresses since the length of
   IPv6 addresses will not fit within the NetBIOS 15 octet name
   limitation.

3.17.  RFC 1112 Host Extensions for IP Multicasting

   This specification defines IP multicast.  Parts of the document are
   IPv4 dependent.

3.18.  RFC 1132 Standard for the transmission of 802.2 packets over IPX
       networks

   There are no IPv4 dependencies in this specification.

3.19.  RFC 1201 Transmitting IP traffic over ARCNET networks

   The major concerns of this specification with respect to IPv4
   addresses occur in the resolution of ARCnet 8bit addresses to IPv4
   addresses in an "ARPlike" method.  This is incompatible with IPv6.

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3.20.  RFC 1209 The Transmission of IP Datagrams over the SMDS Service

   This specification defines running IPv4 and ARP over SMDS.  The
   methods described could easily be extended to support IPv6 packets.

3.21.  RFC 1390 Transmission of IP and ARP over FDDI Networks

   This specification defines the use of IPv4 address on FDDI networks.
   There are numerous IPv4 dependencies in the specification.

   In particular the value of the Protocol Type Code (2048 for IPv4) and
   a corresponding Protocol Address length (4 bytes for IPv4) needs to
   be created.  A discussion of broadcast and multicast addressing
   techniques is also included, and similarly must be updated for IPv6
   networks.  The defined MTU limitation of 4096 octets of data (with
   256 octets reserved header space) should remain sufficient for IPv6.

3.22.  RFC 1661 The Point-to-Point Protocol (PPP)

   There are no IPv4 dependencies in this specification.

3.23.  RFC 1662 PPP in HDLC-like Framing

   There are no IPv4 dependencies in this specification.

3.24.  RFC 2427 Multiprotocol Interconnect over Frame Relay

   There are no IPv4 dependencies in this specification.

4.  Draft Standards

   Draft Standards represent the penultimate standard level in the IETF.
   A protocol can only achieve draft standard when there are multiple,
   independent, interoperable implementations.  Draft Standards are
   usually quite mature and widely used.

4.1.  RFC 951 Bootstrap Protocol (BOOTP)

   This protocol is designed specifically for use with IPv4, for
   example:

    Section 3. Packet Format

    All numbers shown are decimal, unless indicated otherwise.  The
    BOOTP packet is enclosed in a standard IP UDP datagram.  For
    simplicity it is assumed that the BOOTP packet is never fragmented.
    Any numeric fields shown are packed in 'standard network byte
    order', i.e., high order bits are sent first.

Top      ToC       Page 15 
    In the IP header of a bootrequest, the client fills in its own IP
    source address if known, otherwise zero.  When the server address is
    unknown, the IP destination address will be the 'broadcast address'
    255.255.255.255.  This address means 'broadcast on the local cable,
    (I don't know my net number)'.

        FIELD   BYTES   DESCRIPTION
        -----   -----   ---

    [...]
           ciaddr  4       client IP address;
                           filled in by client in bootrequest if known.

           yiaddr  4       'your' (client) IP address;
                           filled by server if client doesn't
                           know its own address (ciaddr was 0).

           siaddr  4       server IP address;
                           returned in bootreply by server.

           giaddr  4       gateway IP address,
                           used in optional cross-gateway booting.

    Since the packet format is a fixed 300 bytes in length, an updated
    version of the specification could easily accommodate an additional
    48 bytes (4 IPv6 fields of 16 bytes to replace the existing 4 IPv4
    fields of 4 bytes).

4.2.  RFC 1188 Proposed Standard for the Transmission of IP Datagrams
      over FDDI Networks

   This document is clearly informally superseded by RFC 1390,
   "Transmission of IP and ARP over FDDI Networks", even though no
   formal deprecation has been done.  Therefore, this specification is
   not considered further in this memo.

4.3.  RFC 1191 Path MTU discovery

   The entire process of PMTU discovery is predicated on the use of the
   DF bit in the IPv4 header, an ICMP message (also IPv4 dependent) and
   TCP MSS option.  This is not compatible with IPv6.

4.4.  RFC 1356 Multiprotocol Interconnect on X.25 and ISDN

   Section 3.2 defines an NLPID for IP as follows:

      The value hex CC (binary 11001100, decimal 204) is IP.
      Conformance with this specification requires that IP be supported.

Top      ToC       Page 16 
      See section 5.1 for a diagram of the packet formats.

      Clearly a new NLPID would need to be defined for IPv6 packets.

4.5.  RFC 1534 Interoperation Between DHCP and BOOTP

   There are no IPv4 dependencies in this specification.

4.6.  RFC 1542 Clarifications and Extensions for the Bootstrap Protocol

   There are no new issues other than those presented in Section 4.1.

4.7.  RFC 1629 Guidelines for OSI NSAP Allocation in the Internet

   There are no IPv4 dependencies in this specification.

4.8.  RFC 1762 The PPP DECnet Phase IV Control Protocol (DNCP)

   There are no IPv4 dependencies in this specification.

4.9.  RFC 1989 PPP Link Quality Monitoring

   There are no IPv4 dependencies in this specification.

4.10.  RFC 1990 The PPP Multilink Protocol (MP)

   Section 5.1.3, "Endpoint Discriminator Option", defines a Class
   header field:

   Class
      The Class field is one octet and indicates the identifier address
      space.  The most up-to-date values of the LCP Endpoint
      Discriminator Class field are specified in the most recent
      "Assigned Numbers" RFC.  Current values are assigned as follows:

      0    Null Class

      1    Locally Assigned Address

      2    Internet Protocol (IP) Address

      3    IEEE 802.1 Globally Assigned MAC Address

      4    PPP Magic-Number Block

      5    Public Switched Network Directory Number

   A new class field needs to be defined by the IANA for IPv6 addresses.

Top      ToC       Page 17 
4.11.  RFC 1994 PPP Challenge Handshake Authentication Protocol (CHAP)

   There are no IPv4 dependencies in this specification.

4.12.  RFC 2067 IP over HIPPI

   Section 5.1, "Packet Formats", contains the following excerpt:

    EtherType (16 bits) SHALL be set as defined in Assigned Numbers:  IP
    = 2048 ('0800'h), ARP = 2054 ('0806'h), RARP = 32,821 ('8035'h).

   Section 5.5, "MTU", has the following definition:

      The MTU for HIPPI-SC LANs is 65280 bytes.

      This value was selected because it allows the IP packet to fit in
      one 64K byte buffer with up to 256 bytes of overhead.  The
      overhead is 40 bytes at the present time; there are 216 bytes of
      room for expansion.

         HIPPI-FP Header                  8 bytes
         HIPPI-LE Header                 24 bytes
         IEEE 802.2 LLC/SNAP Headers      8 bytes
         Maximum IP packet size (MTU) 65280 bytes
                                      ------------
                           Total      65320 bytes (64K - 216)

   This definition is not applicable for IPv6 packets since packets can
   be larger than the IPv4 limitation of 65280 bytes.

4.13.  RFC 2131 Dynamic Host Configuration Protocol

   This version of DHCP is highly predicated of IPv4.  It is not
   compatible with IPv6.

4.14.  RFC 2132 DHCP Options and BOOTP Vendor Extensions

   This is an extension to an IPv4-only specification.

4.15.  RFC 2390 Inverse Address Resolution Protocol

   There are no IPv4 dependencies in this specification.

4.16.  RFC 2460 Internet Protocol, Version 6 (IPv6) Specification

   This document defines IPv6 and has no IPv4 issues.


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