This document is clearly informally superseded by RFC 1390,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.
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.
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.
4.17. RFC 2461 Neighbor Discovery for IP Version 6 (IPv6)
This document defines an IPv6 related specification and has no IPv4
issues.
4.18. RFC 2462 IPv6 Stateless Address Autoconfiguration
This document defines an IPv6 related specification and has no IPv4
issues.
4.19. RFC 2463 Internet Control Message Protocol (ICMPv6) for the
Internet Protocol Version 6 (IPv6) Specification
This document defines an IPv6 related specification and has no IPv4
issues.
4.20. RFC 3596 DNS Extensions to support IP version 6
This specification defines the AAAA record for IPv6 as well as PTR
records using the ip6.arpa domain, and as such has no IPv6 issues.
5. Proposed Standards
Proposed Standards are introductory level documents. There are no
requirements for even a single implementation. In many cases,
Proposed are never implemented or advanced in the IETF standards
process. They, therefore, are often just proposed ideas that are
presented to the Internet community. Sometimes flaws are exposed or
they are one of many competing solutions to problems. In these later
cases, no discussion is presented as it would not serve the purpose
of this discussion.
5.1. RFC 1234 Tunneling IPX traffic through IP networks
The section "Unicast Address Mappings" has the following text:
For implementations of this memo, the first two octets of the host
number will always be zero and the last four octets will be the
node’s four octet IP address. This makes address mapping trivial
for unicast transmissions: the first two octets of the host number
are discarded, leaving the normal four octet IP address. The
encapsulation code should use this IP address as the destination
address of the UDP/IP tunnel packet.
This mapping will not be able to work with IPv6 addresses.
There are also numerous discussions on systems keeping a "peer list"
to map between IP and IPX addresses. The specifics are not discussed
in the document and are left to the individual implementation.
The section "Maximum Transmission Unit" also has some implications on
IP addressing:
Although larger IPX packets are possible, the standard maximum
transmission unit for IPX is 576 octets. Consequently, 576 octets
is the recommended default maximum transmission unit for IPX packets
being sent with this encapsulation technique. With the eight octet
UDP header and the 20 octet IP header, the resulting IP packets will
be 604 octets long. Note that this is larger than the 576 octet
maximum size IP implementations are required to accept. Any IP
implementation supporting this encapsulation technique must be
capable of receiving 604 octet IP packets.
As improvements in protocols and hardware allow for larger,
unfragmented IP transmission units, the 576 octet maximum IPX packet
size may become a liability. For this reason, it is recommended
that the IPX maximum transmission unit size be configurable in
implementations of this memo.
5.2. RFC 1256 ICMP Router Discovery Messages
This specification defines a mechanism very specific to IPv4.
5.3. RFC 1277 Encoding Network Addresses to Support Operation over
Non-OSI Lower Layers
Section 4.5, "TCP/IP (RFC 1006) Network Specific Format" describes a
structure that reserves 12 digits for the textual representation of
an IP address.
This 12 octet field for decimal versions of IP addresses is
insufficient for a decimal version of IPv6 addresses. It is possible
to define a new encoding using the 20 digit long IP Address + Port +
Transport Set fields in order to accommodate a binary version of an
IPv6 address, port number and Transport Set. There are several
schemes that could be envisioned.
5.4. RFC 1332 The PPP Internet Protocol Control Protocol (IPCP)
This specification defines a mechanism for devices to assign IPv4
addresses to PPP clients once PPP negotiation is completed. Section
3, "IPCP Configuration Options", defines IPCP option types which
embed the IP address in 4-byte long fields. This is clearly not
enough for IPv6.
However, the specification is clearly designed to allow new Option
Types to be added and Should offer no problems for use with IPv6 once
appropriate options have been defined.
5.5. RFC 1377 The PPP OSI Network Layer Control Protocol (OSINLCP)
There are no IPv4 dependencies in this specification.
5.6. RFC 1378 The PPP AppleTalk Control Protocol (ATCP)
There are no IPv4 dependencies in this specification.
5.7. RFC 1469 IP Multicast over Token-Ring Local Area Networks
This document defines the usage of IPv4 multicast over IEEE 802.5
Token Ring networks. This is not compatible with IPv6.
5.8. RFC 1552 The PPP Internetworking Packet Exchange Control Protocol
(IPXCP)
There are no IPv4 dependencies in this specification.
5.9. RFC 1570 PPP LCP Extensions
There are no IPv4 dependencies in this specification.
5.10. RFC 1598 PPP in X.25 PPP-X25
There are no IPv4 dependencies in this specification.
5.11. RFC 1618 PPP over ISDN
There are no IPv4 dependencies in this specification.
5.12. RFC 1663 PPP Reliable Transmission
There are no IPv4 dependencies in this specification.
5.13. RFC 1752 The Recommendation for the IP Next Generation Protocol
This document defines a road map for IPv6 development and is not
relevant to this discussion.
5.14. RFC 1755 ATM Signaling Support for IP over ATM
There are no IPv4 dependencies in this specification.
5.15. RFC 1763 The PPP Banyan Vines Control Protocol (BVCP)
There are no IPv4 dependencies in this specification.
5.16. RFC 1764 The PPP XNS IDP Control Protocol (XNSCP)
There are no IPv4 dependencies in this specification.
5.17. RFC 1973 PPP in Frame Relay
There are no IPv4 dependencies in this specification.
5.18. RFC 1981 Path MTU Discovery for IP version 6
This specification describes an IPv6 related specification and is not
discussed in this document.
5.19. RFC 1982 Serial Number Arithmetic
There are no IPv4 dependencies in this specification.
5.20. RFC 1995 Incremental Zone Transfer in DNS
Although the examples used in this document use IPv4 addresses,
(i.e., A records) there is nothing in the specification to preclude
full and proper functionality using IPv6.
5.21. RFC 1996 A Mechanism for Prompt Notification of Zone Changes (DNS
NOTIFY)
There are no IPv4 dependencies in this specification.
5.22. RFC 2003 IP Encapsulation within IP
This document is designed for use in IPv4 networks. There are many
references to a specified IP version number of 4 and 32-bit
addresses. This is incompatible with IPv6.
5.23. RFC 2004 Minimal Encapsulation within IP
This document is designed for use in IPv4 networks. There are many
references to a specified IP version number of 4 and 32-bit
addresses. This is incompatible with IPv6.
5.24. RFC 2005 Applicability Statement for IP Mobility Support
This specification documents the interoperation of IPv4 Mobility
Support; this is not relevant to this discussion.
5.25. RFC 2022 Support for Multicast over UNI 3.0/3.1 based ATM
Networks
This specification specifically maps IPv4 multicast in UNI based ATM
networks. This is incompatible with IPv6.
5.26. RFC 2043 The PPP SNA Control Protocol (SNACP)
There are no IPv4 dependencies in this specification.
5.27. RFC 2097 The PPP NetBIOS Frames Control Protocol (NBFCP)
There are no IPv4 dependencies in this specification.
5.28. RFC 2113 IP Router Alert Option
This document provides a new mechanism for IPv4. This is
incompatible with IPv6.
5.29. RFC 2125 The PPP Bandwidth Allocation Protocol (BAP) / The PPP
Bandwidth Allocation Control Protocol (BACP)
There are no IPv4 dependencies in this specification.
5.30. RFC 2136 Dynamic Updates in the Domain Name System (DNS UPDATE)
There are no IPv4 dependencies in this specification.
5.31. RFC 2181 Clarifications to the DNS Specification
There are no IPv4 dependencies in this specification. The only
reference to IP addresses discuss the use of an anycast address, so
but one can assume that these techniques are IPv6 operable.
5.32. RFC 2225 Classical IP and ARP over ATM
From the many references in this document, it is clear that this
document is designed for IPv4 only. It is only later in the document
that it is implicitly stated, as in:
ar$spln - length in octets of the source protocol address. Value
range is 0 or 4 (decimal). For IPv4 ar$spln is 4.
ar$tpln - length in octets of the target protocol address. Value
range is 0 or 4 (decimal). For IPv4 ar$tpln is 4.
and:
For backward compatibility with previous implementations, a null
IPv4 protocol address may be received with length = 4 and an
allocated address in storage set to the value 0.0.0.0. Receiving
stations must be liberal in accepting this format of a null IPv4
address. However, on transmitting an ATMARP or InATMARP packet, a
null IPv4 address must only be indicated by the length set to zero
and must have no storage allocated.
5.33. RFC 2226 IP Broadcast over ATM Networks
This document is limited to IPv4 multicasting. This is incompatible
with IPv6.
5.34. RFC 2241 DHCP Options for Novell Directory Services
This is an extension to an IPv4-only specification.
5.35. RFC 2242 NetWare/IP Domain Name and Information
This is an extension to an IPv4-only specification, for example:
PREFERRED_DSS (code 6)
Length is (n * 4) and the value is an array of n IP addresses,
each four bytes in length. The maximum number of addresses is
5 and therefore the maximum length value is 20. The list
contains the addresses of n NetWare Domain SAP/RIP Server
(DSS).
NEAREST_NWIP_SERVER (code 7)
Length is (n * 4) and the value is an array of n IP addresses,
each four bytes in length. The maximum number of addresses is
5 and therefore the maximum length value is 20. The list
contains the addresses of n Nearest NetWare/IP servers.
PRIMARY_DSS (code 11)
Length of 4, and the value is a single IP address. This field
identifies the Primary Domain SAP/RIP Service server (DSS) for
this NetWare/IP domain. NetWare/IP administration utility uses
this value as Primary DSS server when configuring a secondary
DSS server.
5.36. RFC 2290 Mobile-IPv4 Configuration Option for PPP IPCP
This document is designed for use with Mobile IPv4. There are
numerous referrals to other IP "support" mechanisms (i.e., ICMP
Router Discover Messages) that specifically refer to the IPv4 of
ICMP.
5.37. RFC 2308 Negative Caching of DNS Queries (DNS NCACHE)
Although there are numerous examples in this document that use IPv4
"A" records, there is nothing in the specification that limits its
effectiveness to IPv4.
5.38. RFC 2331 ATM Signaling Support for IP over ATM - UNI Signaling
4.0 Update
There are no IPv4 dependencies in this specification.
5.39. RFC 2332 NBMA Next Hop Resolution Protocol (NHRP)
This document is very generic in its design and seems to be able to
support numerous layer 3 addressing schemes and should include both
IPv4 and IPv6.
5.40. RFC 2333 NHRP Protocol Applicability
This document is very generic in its design and seems to be able to
support numerous layer 3 addressing schemes and should include both
IPv4 and IPv6.
5.41. RFC 2335 A Distributed NHRP Service Using SCSP
There are no IPv4 dependencies in this specification.
5.42. RFC 2363 PPP Over FUNI
There are no IPv4 dependencies in this specification.
5.43. RFC 2364 PPP Over AAL5
There are no IPv4 dependencies in this specification.
5.44. RFC 2371 Transaction Internet Protocol Version 3.0 (TIPV3)
This document states:
TIP transaction manager addresses take the form:
<hostport><path>
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.
And further along it states:
A TIP URL takes the form:
tip://<transaction manager address>?<transaction string>
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 RFC2141 (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.
ii. <transaction identifier>
A sequence of printable ASCII characters (octets with values in
the range 32 through 126 inclusive (excluding ":") representing a
transaction identifier. In this non-standard case, it is the
combination of <transaction manager address> and <transaction
identifier> which ensures global uniqueness, e.g.,
tip://123.123.123.123/?transid1
These are incompatible with IPv6.
5.45. RFC 2464 Transmission of IPv6 Packets over Ethernet Networks
This specification documents a method for transmitting IPv6 packets
over Ethernet and is not considered in this discussion.
5.46. RFC 2467 Transmission of IPv6 Packets over FDDI Networks
This specification documents a method for transmitting IPv6 packets
over FDDI and is not considered in this discussion.
5.47. RFC 2470 Transmission of IPv6 Packets over Token Ring Networks
This specification documents a method for transmitting IPv6 packets
over Token Ring and is not considered in this discussion.
5.48. RFC 2472 IP Version 6 over PPP
This specification documents a method for transmitting IPv6 packets
over PPP and is not considered in this discussion.
5.49. RFC 2473 Generic Packet Tunneling in IPv6 Specification
This specification documents an IPv6 aware specification and is not
considered in this discussion.
5.50. RFC 2484 PPP LCP Internationalization Configuration Option
There are no IPv4 dependencies in this specification.
5.51. RFC 2485 DHCP Option for The Open Group’s User Authentication
Protocol
This is an extension to an IPv4-only specification.
5.52. RFC 2486 The Network Access Identifier
There are no IPv4 dependencies in this specification.
5.53. RFC 2491 IPv6 over Non-Broadcast Multiple Access (NBMA) Networks
This specification documents a method for transmitting IPv6 packets
over NBMA networks and is not considered in this discussion.
5.54. RFC 2492 IPv6 over ATM Networks
This specification documents a method for transmitting IPv6 packets
over ATM networks and is not considered in this discussion.
5.55. RFC 2497 Transmission of IPv6 Packets over ARCnet Networks
This specification documents a method for transmitting IPv6 packets
over ARCnet networks and is not considered in this discussion.
5.56. RFC 2507 IP Header Compression
This specification is both IPv4 and IPv6 aware.
5.57. RFC 2526 Reserved IPv6 Subnet Anycast Addresses
This specification documents IPv6 addressing and is not discussed in
this document.
5.58. RFC 2529 Transmission of IPv6 over IPv4 Domains without Explicit
Tunnels
This specification documents IPv6 transmission methods and is not
discussed in this document.
5.59. RFC 2563 DHCP Option to Disable Stateless Auto-Configuration in
IPv4 Clients
This is an extension to an IPv4-only specification.
5.60. RFC 2590 Transmission of IPv6 Packets over Frame Relay Networks
Specification
This specification documents IPv6 transmission method over Frame
Relay and is not discussed in this document.
5.61. RFC 2601 ILMI-Based Server Discovery for ATMARP
This specification is both IPv4 and IPv6 aware.
5.62. RFC 2602 ILMI-Based Server Discovery for MARS
This specification is both IPv4 and IPv6 aware.
5.63. RFC 2603 ILMI-Based Server Discovery for NHRP
This specification is both IPv4 and IPv6 aware.
5.64. RFC 2610 DHCP Options for Service Location Protocol
This is an extension to an IPv4-only specification.
5.65. RFC 2615 PPP over SONET/SDH
There are no IPv4 dependencies in this specification.
5.66. RFC 2625 IP and ARP over Fibre Channel
This document states:
Objective and Scope:
The major objective of this specification is to promote
interoperable implementations of IPv4 over FC. This
specification describes a method for encapsulating IPv4 and
Address Resolution Protocol (ARP) packets over FC.
This is incompatible with IPv6.
5.67. RFC 2661 Layer Two Tunneling Protocol (L2TP)
There are no IPv4 dependencies in this specification.
5.68. RFC 2671 Extension Mechanisms for DNS (EDNS0)
There are no IPv4 dependencies in this specification.
5.69. RFC 2672 Non-Terminal DNS Name Redirection
This document is only defined for IPv4 addresses. An IPv6
specification may be needed.
5.70. RFC 2673 Binary Labels in the Domain Name System
This document is only defined for IPv4 addresses. An IPv6
specification may be needed.
5.71. RFC 2675 IPv6 Jumbograms
This document defines a IPv6 packet format and is therefore not
discussed in this document.
5.72. RFC 2684 Multiprotocol Encapsulation over ATM Adaptation Layer 5
There are no IPv4 dependencies in this specification.
5.73. RFC 2685 Virtual Private Networks Identifier
There are no IPv4 dependencies in this specification.
5.74. RFC 2686 The Multi-Class Extension to Multi-Link PPP
There are no IPv4 dependencies in this specification.
5.75. RFC 2687 PPP in a Real-time Oriented HDLC-like Framing
There are no IPv4 dependencies in this specification.
5.76. RFC 2688 Integrated Services Mappings for Low Speed Networks
There are no IPv4 dependencies in this specification.
5.77. RFC 2710 Multicast Listener Discovery (MLD) for IPv6
This document defines an IPv6 specific specification and is not
discussed in this document.
5.78. RFC 2711 IPv6 Router Alert Option
This document defines an IPv6 specific specification and is not
discussed in this document.
5.79. RFC 2728 The Transmission of IP Over the Vertical Blanking
Interval of a Television Signal
The following data format is defined:
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
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|0| group | uncompressed IP header (20 bytes) |
+-+-+-+-+-+-+-+-+ +