RFC 1011 - Official Internet protocols

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Network Working Group J. Reynolds
Request for Comments: 1011 J. Postel
 ISI
Obsoletes: RFCs 991, 961, 943, 924, 901, 880, 840 May 1987
 OFFICIAL INTERNET PROTOCOLS
STATUS OF THIS MEMO
 This memo is an official status report on the protocols used in the
 Internet community. Distribution of this memo is unlimited.
INTRODUCTION
 This RFC identifies the documents specifying the official protocols
 used in the Internet. Comments indicate any revisions or changes
 planned.
 To first order, the official protocols are those specified in the
 "DDN Protocol Handbook" (DPH), dated December 1985 (this is a three
 volume set with a total thickness of about 5 inches).
 Older collections that include many of these specifications are the
 "Internet Protocol Transition Workbook" (IPTW), dated March 1982; the
 "Internet Mail Protocols", dated November 1982; and the "Internet
 Telnet Protocols and Options", dated June 1983. There is also a
 volume of protocol related information called the "Internet Protocol
 Implementers Guide" (IPIG) dated August 1982. An even older
 collection is the "ARPANET Protocol Handbook" (APH) dated
 January 1978. Nearly all the relevant material from these
 collections has been reproduced in the current DPH.
 The following material is organized as a sketchy outline. The
 entries are protocols (e.g., Transmission Control Protocol). In each
 entry there are notes on status, specification, comments, other
 references, dependencies, and contact.
 The STATUS is one of: required, recommended, elective,
 experimental, or none.
 The SPECIFICATION identifies the protocol defining documents.
 The COMMENTS describe any differences from the specification or
 problems with the protocol.
 The OTHER REFERENCES identify documents that comment on or expand
 on the protocol.
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RFC 1011 - Official Internet Protocols May 1987
 The DEPENDENCIES indicate what other protocols are called upon by
 this protocol.
 The CONTACT indicates a person who can answer questions about the
 protocol.
 In particular, the status may be:
 required
 - all hosts must implement the required protocol,
 recommended
 - all hosts are encouraged to implement the recommended
 protocol,
 elective
 - hosts may implement or not the elective protocol,
 experimental
 - hosts should not implement the experimental protocol
 unless they are participating in the experiment and have
 coordinated their use of this protocol with the contact
 person, and
 none
 - this is not a protocol.
 For further information about protocols in general, please
 contact:
 Joyce K. Reynolds
 USC - Information Sciences Institute
 4676 Admiralty Way
 Marina del Rey, California 90292-6695
 Phone: (213) 822-1511
 Electronic mail: JKREYNOLDS@ISI.EDU
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RFC 1011 - Official Internet Protocols May 1987
OVERVIEW
 Catenet Model ------------------------------------------------------
 STATUS: None
 SPECIFICATION: IEN 48 (in DPH)
 COMMENTS:
 Gives an overview of the organization and principles of the
 Internet.
 Could be revised and expanded.
 OTHER REFERENCES:
 Leiner, B., Cole R., Postel, J., and D. Mills, "The DARPA
 Protocol Suite", IEEE INFOCOM 85, Washington, D.C., March 1985.
 Also in IEEE Communications Magazine, and as ISI/RS-85-153,
 March 1985.
 Postel, J., "Internetwork Applications Using the DARPA Protocol
 Suite", IEEE INFOCOM 85, Washington, D.C., March 1985. Also in
 IEEE Communications Magazine, and as ISI/RS-85-151, April 1985.
 Padlipsky, M.A., "The Elements of Networking Style and other
 Essays and Animadversions on the Art of Intercomputer
 Networking", Prentice-Hall, New Jersey, 1985.
 RFC 871 - A Perspective on the ARPANET Reference Model
 DEPENDENCIES:
 CONTACT: Postel@ISI.EDU
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RFC 1011 - Official Internet Protocols May 1987
NETWORK LEVEL
 Internet Protocol --------------------------------------------- (IP)
 STATUS: Required
 SPECIFICATION: RFC 791 (in DPH)
 COMMENTS:
 This is the universal protocol of the Internet. This datagram
 protocol provides the universal addressing of hosts in the
 Internet.
 A few minor problems have been noted in this document.
 The most serious is a bit of confusion in the route options.
 The route options have a pointer that indicates which octet of
 the route is the next to be used. The confusion is between the
 phrases "the pointer is relative to this option" and "the
 smallest legal value for the pointer is 4". If you are
 confused, forget about the relative part, the pointer begins
 at 4. The MIL-STD description of source routing is wrong in
 some of the details.
 Another important point is the alternate reassembly procedure
 suggested in RFC 815.
 Some changes are in the works for the security option.
 Note that ICMP is defined to be an integral part of IP. You
 have not completed an implementation of IP if it does not
 include ICMP.
 The subnet procedures defined in RFC 950 are now considered an
 essential part of the IP architecture and must be implemented
 by all hosts and gateways.
 OTHER REFERENCES:
 RFC 815 (in DPH) - IP Datagram Reassembly Algorithms
 RFC 814 (in DPH) - Names, Addresses, Ports, and Routes
 RFC 816 (in DPH) - Fault Isolation and Recovery
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RFC 1011 - Official Internet Protocols May 1987
 RFC 817 (in DPH) - Modularity and Efficiency in Protocol
 Implementation
 MIL-STD-1777 (in DPH) - Military Standard Internet Protocol
 RFC 963 - Some Problems with the Specification of the Military
 Standard Internet Protocol
 DEPENDENCIES:
 CONTACT: Postel@ISI.EDU
 Internet Control Message Protocol --------------------------- (ICMP)
 STATUS: Required
 SPECIFICATION: RFC 792 (in DPH)
 COMMENTS:
 The control messages and error reports that go with the
 Internet Protocol.
 A few minor errors in the document have been noted.
 Suggestions have been made for additional types of redirect
 message and additional destination unreachable messages.
 Two additional ICMP message types are defined in RFC 950
 "Internet Subnets", Address Mask Request (A1=17), and Address
 Mask Reply (A2=18).
 Note that ICMP is defined to be an integral part of IP. You
 have not completed an implementation of IP if it does not
 include ICMP.
 OTHER REFERENCES: RFC 950
 DEPENDENCIES: Internet Protocol
 CONTACT: Postel@ISI.EDU
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RFC 1011 - Official Internet Protocols May 1987
 Internet Group Multicast Protocol --------------------------- (IGMP)
 STATUS: Recommended
 SPECIFICATION: RFC 988
 COMMENTS:
 This protocol specifies the extensions required of a host
 implementation of the Internet Protocol (IP) to support
 internetwork multicasting. This specification supersedes that
 given in RFC 966, and constitutes a proposed protocol standard
 for IP multicasting in the Internet. Reference RFC 966 for a
 discussion of the motivation and rationale behind the
 multicasting extension specified here.
 OTHER REFERENCES: RFC 966
 DEPENDENCIES: Internet Protocol
 CONTACT: Deering@PESCADERO.STANFORD.EDU
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RFC 1011 - Official Internet Protocols May 1987
HOST LEVEL
 User Datagram Protocol --------------------------------------- (UDP)
 STATUS: Recommended
 SPECIFICATION: RFC 768 (in DPH)
 COMMENTS:
 Provides a datagram service to applications. Adds port
 addressing to the IP services.
 The only change noted for the UDP specification is a minor
 clarification that if in computing the checksum a padding octet
 is used for the computation it is not transmitted or counted in
 the length.
 OTHER REFERENCES:
 DEPENDENCIES: Internet Protocol
 CONTACT: Postel@ISI.EDU
 Transmission Control Protocol -------------------------------- (TCP)
 STATUS: Recommended
 SPECIFICATION: RFC 793 (in DPH)
 COMMENTS:
 Provides reliable end-to-end data stream service.
 Many comments and corrections have been received for the TCP
 specification document. These are primarily document bugs
 rather than protocol bugs.
 Event Processing Section: There are many minor corrections and
 clarifications needed in this section.
 Push: There are still some phrases in the document that give a
 "record mark" flavor to the push. These should be further
 clarified. The push is not a record mark.
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RFC 1011 - Official Internet Protocols May 1987
 Urgent: Page 17 is wrong. The urgent pointer points to the
 last octet of urgent data (not to the first octet of non-urgent
 data).
 Listening Servers: Several comments have been received on
 difficulties with contacting listening servers. There should
 be some discussion of implementation issues for servers, and
 some notes on alternative models of system and process
 organization for servers.
 Maximum Segment Size: The maximum segment size option should
 be generalized and clarified. It can be used to either
 increase or decrease the maximum segment size from the default.
 The TCP Maximum Segment Size is the IP Maximum Datagram Size
 minus forty. The default IP Maximum Datagram Size is 576. The
 default TCP Maximum Segment Size is 536. For further
 discussion, see RFC 879.
 Idle Connections: There have been questions about
 automatically closing idle connections. Idle connections are
 ok, and should not be closed. There are several cases where
 idle connections arise, for example, in Telnet when a user is
 thinking for a long time following a message from the server
 computer before his next input. There is no TCP "probe"
 mechanism, and none is needed.
 Queued Receive Data on Closing: There are several points where
 it is not clear from the description what to do about data
 received by the TCP but not yet passed to the user,
 particularly when the connection is being closed. In general,
 the data is to be kept to give to the user if he does a RECV
 call.
 Out of Order Segments: The description says that segments that
 arrive out of order, that is, are not exactly the next segment
 to be processed, may be kept on hand. It should also point out
 that there is a very large performance penalty for not doing
 so.
 User Time Out: This is the time out started on an open or send
 call. If this user time out occurs the user should be
 notified, but the connection should not be closed or the TCB
 deleted. The user should explicitly ABORT the connection if he
 wants to give up.
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RFC 1011 - Official Internet Protocols May 1987
 OTHER REFERENCES:
 RFC 813 (in DPH) - Window and Acknowledgement Strategy in TCP
 RFC 814 (in DPH) - Names, Addresses, Ports, and Routes
 RFC 816 (in DPH) - Fault Isolation and Recovery
 RFC 817 (in DPH) - Modularity and Efficiency in Protocol
 Implementation
 RFC 879 - TCP Maximum Segment Size
 RFC 889 - Internet Delay Experiments
 RFC 896 - TCP/IP Congestion Control
 MIL-STD-1778 (in DPH) - Military Standard Transmission Control
 Protocol
 RFC 964 - Some Problems with the Specification of the Military
 Standard Transmission Control Protocol
 Zhang, Lixia, "Why TCP Timers Don't Work Well", Communications
 Architectures and Protocols, ACM SIGCOMM Proceedings, Computer
 Communications Review, V.16, N.3, August 1986.
 DEPENDENCIES: Internet Protocol
 CONTACT: Postel@ISI.EDU
 Bulk Data Transfer Protocol ------------------------------- (NETBLT)
 STATUS: Experimental
 SPECIFICATION: RFC 998
 COMMENTS:
 This is a revised RFC on the discussion of the Network Block
 Transfer (NETBLT) protocol.
 NETBLT (NETwork BLock Transfer) is a transport level protocol
 intended for the rapid transfer of a large quantity of data
 between computers. It provides a transfer that is reliable and
 flow controlled, and is designed to provide maximum throughput
 over a wide variety of networks. Although NETBLT currently
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RFC 1011 - Official Internet Protocols May 1987
 runs on top of the Internet Protocol (IP), it should be able to
 operate on top of any datagram protocol similar in function to
 IP.
 This document is published for discussion and comment, and does
 not constitute a standard. The proposal may change and certain
 parts of the protocol have not yet been specified;
 implementation of this document is therefore not advised.
 OTHER REFERENCES: RFC 969
 DEPENDENCIES: Transmission Control Protocol, User Datagram
 Protocol
 CONTACT: markl@PTT.LCS.MIT.EDU
 Exterior Gateway Protocol ------------------------------------ (EGP)
 STATUS: Recommended for Gateways
 SPECIFICATION: RFC 888, RFC 904 (in DPH), RFC 975, RFC 985
 COMMENTS:
 The protocol used between gateways of different administrations
 to exchange routing information.
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES: RFC 827, RFC 890
 DEPENDENCIES: Internet Protocol
 CONTACT: Mills@UDEL.EDU
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RFC 1011 - Official Internet Protocols May 1987
 Gateway Gateway Protocol ------------------------------------- (GGP)
 STATUS: Experimental
 SPECIFICATION: RFC 823 (in DPH)
 COMMENTS:
 The gateway protocol now used in the core gateways.
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES:
 DEPENDENCIES: Internet Protocol
 CONTACT: Brescia@BBN.COM
 Host Monitoring Protocol ------------------------------------- (HMP)
 STATUS: Elective
 SPECIFICATION: RFC 869 (in DPH)
 COMMENTS:
 This is a good tool for debugging protocol implementations in
 remotely located computers.
 This protocol is used to monitor Internet gateways and the
 TACs.
 OTHER REFERENCES:
 DEPENDENCIES: Internet Protocol
 CONTACT: Hinden@BBN.COM
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RFC 1011 - Official Internet Protocols May 1987
 Reliable Data Protocol --------------------------------------- (RDP)
 STATUS: Experimental
 SPECIFICATION: RFC 908 (in DPH)
 COMMENTS:
 This protocol is designed to efficiently support the bulk
 transfer of data for such host monitoring and control
 applications as loading/dumping and remote debugging. The
 protocol is intended to be simple to implement but still be
 efficient in environments where there may be long transmission
 delays and loss or non-sequential delivery of message segments.
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES:
 DEPENDENCIES: Internet Protocol
 CONTACT: CWelles@BBN.COM
 Internet Reliable Transaction Protocol ---------------------- (IRTP)
 STATUS: Experimental
 SPECIFICATION: RFC 938
 COMMENTS:
 This protocol is a transport level host to host protocol
 designed for an internet environment. While the issues
 discussed may not be directly relevant to the research problems
 of the Internet community, they may be interesting to a number
 of researchers and implementors.
 OTHER REFERENCES:
 DEPENDENCIES: Internet Protocol
 CONTACT: Trudy@ACC.ARPA
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RFC 1011 - Official Internet Protocols May 1987
 Cross Net Debugger ------------------------------------------ (XNET)
 STATUS: Elective
 SPECIFICATION: IEN 158 (in DPH)
 COMMENTS:
 A debugging protocol, allows debugger like access to remote
 systems.
 This specification should be updated and reissued as an RFC.
 OTHER REFERENCES: RFC 643
 DEPENDENCIES: Internet Protocol
 CONTACT: Postel@ISI.EDU
 Multiplexing Protocol ---------------------------------------- (MUX)
 STATUS: Experimental
 SPECIFICATION: IEN 90 (in DPH)
 COMMENTS:
 Defines a capability to combine several segments from different
 higher level protocols in one IP datagram.
 No current experiment in progress. There is some question as
 to the extent to which the sharing this protocol envisions can
 actually take place. Also, there are some issues about the
 information captured in the multiplexing header being (a)
 insufficient, or (b) over specific.
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES:
 DEPENDENCIES: Internet Protocol
 CONTACT: Postel@ISI.EDU
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RFC 1011 - Official Internet Protocols May 1987
 Stream Protocol ----------------------------------------------- (ST)
 STATUS: Experimental
 SPECIFICATION: IEN 119 (in DPH)
 COMMENTS:
 A gateway resource allocation protocol designed for use in
 multihost real time applications.
 The implementation of this protocol has evolved and may no
 longer be consistent with this specification. The document
 should be updated and issued as an RFC.
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES:
 DEPENDENCIES: Internet Protocol
 CONTACT: jwf@LL-EN.ARPA
 Network Voice Protocol ------------------------------------ (NVP-II)
 STATUS: Experimental
 SPECIFICATION: ISI Internal Memo
 COMMENTS:
 Defines the procedures for real time voice conferencing.
 The specification is an ISI Internal Memo which should be
 updated and issued as an RFC.
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES: RFC 741 (in DPH)
 DEPENDENCIES: Internet Protocol, Stream Protocol
 CONTACT: Casner@ISI.EDU
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RFC 1011 - Official Internet Protocols May 1987
APPLICATION LEVEL
 Telnet Protocol ------------------------------------------- (TELNET)
 STATUS: Recommended
 SPECIFICATION: RFC 854 (in DPH)
 COMMENTS:
 The protocol for remote terminal access.
 This has been revised since the IPTW. RFC 764 in IPTW is now
 obsolete.
 OTHER REFERENCES:
 MIL-STD-1782 (in DPH) - Telnet Protocol
 DEPENDENCIES: Transmission Control Protocol
 CONTACT: Postel@ISI.EDU
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RFC 1011 - Official Internet Protocols May 1987
 Telnet Options ------------------------------------ (TELNET-OPTIONS)
 STATUS: Elective
 SPECIFICATION: General description of options: RFC 855 (in DPH)
 Number Name RFC NIC DPH USE
 ------ --------------------------------- --- ----- --- ---
 0 Binary Transmission 856 ----- yes yes
 1 Echo 857 ----- yes yes
 2 Reconnection ... 15391 yes no
 3 Suppress Go Ahead 858 ----- yes yes
 4 Approx Message Size Negotiation ... 15393 yes no
 5 Status 859 ----- yes yes
 6 Timing Mark 860 ----- yes yes
 7 Remote Controlled Trans and Echo 726 39237 yes no
 8 Output Line Width ... 20196 yes no
 9 Output Page Size ... 20197 yes no
 10 Output Carriage-Return Disposition 652 31155 yes no
 11 Output Horizontal Tabstops 653 31156 yes no
 12 Output Horizontal Tab Disposition 654 31157 yes no
 13 Output Formfeed Disposition 655 31158 yes no
 14 Output Vertical Tabstops 656 31159 yes no
 15 Output Vertical Tab Disposition 657 31160 yes no
 16 Output Linefeed Disposition 658 31161 yes no
 17 Extended ASCII 698 32964 yes no
 18 Logout 727 40025 yes no
 19 Byte Macro 735 42083 yes no
 20 Data Entry Terminal 732 41762 yes no
 21 SUPDUP 734 736 42213 yes no
 22 SUPDUP Output 749 45449 yes no
 23 Send Location 779 ----- yes no
 24 Terminal Type 930 ----- yes no
 25 End of Record 885 ----- yes no
 26 TACACS User Identification 927 ----- yes no
 27 Output Marking 933 ----- yes no
 28 Terminal Location Number 946 ----- no no
 255 Extended-Options-List 861 ----- yes yes
 The DHP column indicates if the specification is included in the
 DDN Protocol Handbook. The USE column of the table above
 indicates which options are in general use.
 COMMENTS:
 The Binary Transmission, Echo, Suppress Go Ahead, Status,
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RFC 1011 - Official Internet Protocols May 1987
 Timing Mark, and Extended Options List options have been
 recently updated and reissued. These are the most frequently
 implemented options.
 The remaining options should be reviewed and the useful ones
 should be revised and reissued. The others should be
 eliminated.
 The following are recommended: Binary Transmission, Echo,
 Suppress Go Ahead, Status, Timing Mark, and Extended Options
 List.
 OTHER REFERENCES:
 DEPENDENCIES: Telnet
 CONTACT: Postel@ISI.EDU
 SUPDUP Protocol ------------------------------------------- (SUPDUP)
 STATUS: Elective
 SPECIFICATION: RFC 734 (in DPH)
 COMMENTS:
 A special Telnet like protocol for display terminals.
 OTHER REFERENCES:
 DEPENDENCIES: Transmission Control Protocol
 CONTACT: Crispin@SU-SCORE.STANFORD.EDU
 File Transfer Protocol --------------------------------------- (FTP)
 STATUS: Recommended
 SPECIFICATION: RFC 959 (in DPH)
 COMMENTS:
 The protocol for moving files between Internet hosts. Provides
 for access control and negotiation of file parameters.
 The following new optional commands are included in this
 edition of the specification: Change to Parent Directory
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RFC 1011 - Official Internet Protocols May 1987
 (CDUP), Structure Mount (SMNT), Store Unique (STOU), Remove
 Directory (RMD), Make Directory (MKD), Print Directory (PWD),
 and System (SYST). Note that this specification is compatible
 with the previous edition (RFC 765).
 A discrepancy has been found in the specification in the
 examples of Appendix II. On page 63, a response code of 200 is
 shown as the response to a CWD command. Under the list of
 Command-Reply Sequences cited on page 50, CWD is shown to only
 accept a 250 response code. Therefore, if one would interpret
 a CWD command as being excluded from the File System functional
 category, one may assume that the response code of 200 is
 correct, since CDUP as a special case of CWD does use 200.
 OTHER REFERENCES:
 RFC 678 (in DPH) - Document File Format Standards
 MIL-STD-1780 (in DPH) - File Transfer Protocol
 DEPENDENCIES: Transmission Control Protocol
 CONTACT: Postel@ISI.EDU
 Trivial File Transfer Protocol ------------------------------ (TFTP)
 STATUS: Elective
 SPECIFICATION: RFC 783 (in IPTW)
 COMMENTS:
 A very simple file moving protocol, no access control is
 provided.
 This is in use in several local networks.
 Ambiguities in the interpretation of several of the transfer
 modes should be clarified, and additional transfer modes could
 be defined. Additional error codes could be defined to more
 clearly identify problems.
 Note: The DPH contains IEN-133, which is an obsolete version of
 this protocol.
 OTHER REFERENCES:
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RFC 1011 - Official Internet Protocols May 1987
 DEPENDENCIES: User Datagram Protocol
 CONTACT: Postel@ISI.EDU
 Simple File Transfer Protocol ------------------------------- (SFTP)
 STATUS: Experimental
 SPECIFICATION: RFC 913 (in DPH)
 COMMENTS:
 SFTP is a simple file transfer protocol. It fills the need of
 people wanting a protocol that is more useful than TFTP but
 easier to implement (and less powerful) than FTP. SFTP
 supports user access control, file transfers, directory
 listing, directory changing, file renaming and deleting.
 SFTP can be implemented with any reliable 8-bit byte stream
 oriented protocol, this document describes its TCP
 specification. SFTP uses only one TCP connection; whereas TFTP
 implements a connection over UDP, and FTP uses two TCP
 connections (one using the TELNET protocol).
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES:
 DEPENDENCIES: Transmission Control Protocol
 CONTACT: MKL@SRI-NIC.ARPA
 Simple Mail Transfer Protocol ------------------------------- (SMTP)
 STATUS: Recommended
 SPECIFICATION: RFC 821 (in DPH)
 COMMENTS:
 The procedure for transmitting computer mail between hosts.
 This has been revised since the IPTW, it is in the "Internet
 Mail Protocols" volume of November 1982. RFC 788 (in IPTW) is
 obsolete.
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RFC 1011 - Official Internet Protocols May 1987
 There have been many misunderstandings and errors in the early
 implementations. Some documentation of these problems can be
 found in the file [C.ISI.EDU]<SMTP>MAIL.ERRORS.
 Some minor differences between RFC 821 and RFC 822 should be
 resolved.
 OTHER REFERENCES:
 RFC 822 - Mail Header Format Standards
 This has been revised since the IPTW, it is in the "Internet
 Mail Protocols" volume of November 1982. RFC 733 (in IPTW)
 is obsolete. Further revision of RFC 822 is needed to
 correct some minor errors in the details of the
 specification.
 Note: RFC 822 is not included in the DPH (an accident, it
 should have been).
 MIL-STD-1781 (in DPH) - Simple Mail Transfer Protocol (SMTP)
 DEPENDENCIES: Transmission Control Protocol
 CONTACT: Postel@ISI.EDU
 Network News Transfer Protocol ------------------------------ (NNTP)
 STATUS: Experimental
 SPECIFICATION: RFC 977
 COMMENTS:
 NNTP specifies a protocol for the distribution, inquiry,
 retrieval, and posting of news articles using a reliable
 stream-based transmission of news among the Internet community.
 NNTP is designed so that news articles are stored in a central
 database allowing a subscriber to select only those items he
 wishes to read. Indexing, cross-referencing, and expiration of
 aged messages are also provided.
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES:
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RFC 1011 - Official Internet Protocols May 1987
 DEPENDENCIES: Internet Protocol
 CONTACT: Brian@SDCSVAX.UCSD.EDU
 Post Office Protocol - Version 2 ---------------------------- (POP2)
 STATUS: Experimental
 SPECIFICATION: RFC 937 (in DPH)
 COMMENTS:
 The intent of the Post Office Protocol - Version 2 (POP2) is to
 allow a user's workstation to access mail from a mailbox
 server. It is expected that mail will be posted from the
 workstation to the mailbox server via the Simple Mail Transfer
 Protocol (SMTP).
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES: Obsoletes RFC 918
 DEPENDENCIES: Transmission Control Protocol
 CONTACT: JKReynolds@ISI.EDU
 NetBIOS Services Protocol -------------------------------- (NETBIOS)
 STATUS: Recommended
 SPECIFICATION: RFC 1001, 1002
 COMMENTS:
 These documents define a proposed standard protocol to support
 NetBIOS services in a TCP/IP environment. Both local network
 and internet operation are supported. Various node types are
 defined to accomodate local and internet topologies and to
 allow operation with or without the use of IP broadcast
 RFC 1001 describes the NetBIOS-over-TCP protocols in a general
 manner, with emphasis on the underlying ideas and techniques.
 RFC 1002 gives the detailed specifications of the
 NetBIOS-over-TCP packets, protocols, and defined constants and
 variables.
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 OTHER REFERENCES:
 DEPENDENCIES: Transmission Control Protocol, User Datagram
 Protocol
 CONTACT: Auerbach@CSL.SRI.COM
 Bootstrap Protocol ----------------------------------------- (BOOTP)
 STATUS: Experimental
 SPECIFICATION: RFC 951
 COMMENTS:
 This proposed protocol provides an IP/UDP bootstrap protocol
 which allows a diskless client machine to discover its own IP
 address, the address of a server host, and the name of a file
 to be loaded into memory and executed.
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES:
 DEPENDENCIES: Internet Protocol, User Datagram Protocol
 CONTACT: Croft@SUMEX-AIM.STANFORD.EDU
 Loader Debugger Protocol ------------------------------------- (LDP)
 STATUS: Experimental
 SPECIFICATION: RFC 909
 COMMENTS:
 Specifies a protocol for loading, dumping and debugging target
 machines from hosts in a network environment. It is also
 designed to accommodate a variety of target CPU types. It
 provides a powerful set of debugging services, while at the
 same time, it is structured so that a simple subset may be
 implemented in applications like boot loading where efficiency
 and space are at a premium.
 Please discuss any plans for implementation or use of this
 protocol with the contact.
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RFC 1011 - Official Internet Protocols May 1987
 OTHER REFERENCES:
 DEPENDENCIES: Reliable Data Protocol
 CONTACT: Hinden@BBN.COM
 Resource Location Protocol ----------------------------------- (RLP)
 STATUS: Elective
 SPECIFICATION: RFC 887 (in DPH)
 COMMENTS:
 A resource location protocol for use in the Internet. This
 protocol utilizes the User Datagram Protocol (UDP) which in
 turn calls on the Internet Protocol to deliver its datagrams.
 OTHER REFERENCES:
 DEPENDENCIES: User Datagram Protocol
 CONTACT: Accetta@A.CS.CMU.EDU
 Remote Job Entry --------------------------------------------- (RJE)
 STATUS: Elective
 SPECIFICATION: RFC 407 (in DPH)
 COMMENTS:
 The general protocol for submitting batch jobs and retrieving
 the results.
 Some changes needed for use with TCP.
 No known active implementations.
 OTHER REFERENCES:
 DEPENDENCIES: File Transfer Protocol, Transmission Control
 Protocol
 CONTACT: Postel@ISI.EDU
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RFC 1011 - Official Internet Protocols May 1987
 Remote Job Service ---------------------------------------- (NETRJS)
 STATUS: Elective
 SPECIFICATION: RFC 740 (in DPH)
 COMMENTS:
 A special protocol for submitting batch jobs and retrieving the
 results used with the UCLA IBM OS system.
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 Revision in progress.
 OTHER REFERENCES:
 DEPENDENCIES: Transmission Control Protocol
 CONTACT: Braden@ISI.EDU
 Remote Telnet Service ------------------------------------ (RTELNET)
 STATUS: Elective
 SPECIFICATION: RFC 818 (in DPH)
 COMMENTS:
 Provides special access to user Telnet on a remote system.
 OTHER REFERENCES:
 DEPENDENCIES: Telnet, Transmission Control Protocol
 CONTACT: Postel@ISI.EDU
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RFC 1011 - Official Internet Protocols May 1987
 Graphics Protocol --------------------------------------- (GRAPHICS)
 STATUS: Elective
 SPECIFICATION: NIC 24308 (in DPH)
 COMMENTS:
 The protocol for vector graphics.
 Very minor changes needed for use with TCP.
 No known active implementations.
 Note: The DPH claims that this is RFC 493, but RFC 493 is
 actually a different earlier specification.
 OTHER REFERENCES:
 DEPENDENCIES: Telnet, Transmission Control Protocol
 CONTACT: Postel@ISI.EDU
 Echo Protocol ----------------------------------------------- (ECHO)
 STATUS: Recommended
 SPECIFICATION: RFC 862 (in DPH)
 COMMENTS:
 Debugging protocol, sends back whatever you send it.
 OTHER REFERENCES:
 DEPENDENCIES: Transmission Control Protocol
 or User Datagram Protocol
 CONTACT: Postel@ISI.EDU
Reynolds & Postel [Page 25]

RFC 1011 - Official Internet Protocols May 1987
 Discard Protocol ----------------------------------------- (DISCARD)
 STATUS: Elective
 SPECIFICATION: RFC 863 (in DPH)
 COMMENTS:
 Debugging protocol, throws away whatever you send it.
 OTHER REFERENCES:
 DEPENDENCIES: Transmission Control Protocol
 or User Datagram Protocol
 CONTACT: Postel@ISI.EDU
 Character Generator Protocol ----------------------------- (CHARGEN)
 STATUS: Elective
 SPECIFICATION: RFC 864 (in DPH)
 COMMENTS:
 Debugging protocol, sends you ASCII data.
 OTHER REFERENCES:
 DEPENDENCIES: Transmission Control Protocol
 or User Datagram Protocol
 CONTACT: Postel@ISI.EDU
Reynolds & Postel [Page 26]

RFC 1011 - Official Internet Protocols May 1987
 Quote of the Day Protocol ---------------------------------- (QUOTE)
 STATUS: Elective
 SPECIFICATION: RFC 865 (in DPH)
 COMMENTS:
 Debugging protocol, sends you a short ASCII message.
 OTHER REFERENCES:
 DEPENDENCIES: Transmission Control Protocol
 or User Datagram Protocol
 CONTACT: Postel@ISI.EDU
 Statistics Server ---------------------------------------- (STATSRV)
 STATUS: Recommended
 SPECIFICATION: RFC 996
 COMMENTS:
 This RFC specifies a standard for the Internet community.
 Hosts and gateways on the Internet that choose to implement a
 remote statistics monitoring facility may use this protocol to
 send statistics data upon request to a monitoring center or
 debugging host.
 OTHER REFERENCES:
 DEPENDENCIES: Internet Protocol
 CONTACT: Mills@UDEL.EDU
Reynolds & Postel [Page 27]

RFC 1011 - Official Internet Protocols May 1987
 Active Users Protocol -------------------------------------- (USERS)
 STATUS: Elective
 SPECIFICATION: RFC 866 (in DPH)
 COMMENTS:
 Lists the currently active users.
 OTHER REFERENCES:
 DEPENDENCIES: Transmission Control Protocol
 or User Datagram Protocol
 CONTACT: Postel@ISI.EDU
 Finger Protocol ------------------------------------------- (FINGER)
 STATUS: Elective
 SPECIFICATION: RFC 742 (in DPH)
 COMMENTS:
 Provides information on the current or most recent activity of
 a user.
 Some extensions have been suggested.
 Some changes are are needed for TCP.
 OTHER REFERENCES:
 DEPENDENCIES: Transmission Control Protocol
 CONTACT: Postel@ISI.EDU
Reynolds & Postel [Page 28]

RFC 1011 - Official Internet Protocols May 1987
 WhoIs Protocol ------------------------------------------- (NICNAME)
 STATUS: Elective
 SPECIFICATION: RFC 954 (in DPH)
 COMMENTS:
 Accesses the ARPANET Directory database. Provides a way to
 find out about people, their addresses, phone numbers,
 organizations, and mailboxes.
 OTHER REFERENCES:
 DEPENDENCIES: Transmission Control Protocol
 CONTACT: Feinler@SRI-NIC.ARPA
 CSNET Mailbox Name Server Protocol ---------------------- (CSNET-NS)
 STATUS: Experimental
 SPECIFICATION: CS-DN-2 (in DPH)
 COMMENTS:
 Provides access to the CSNET data base of users to give
 information about users names, affiliations, and mailboxes.
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES:
 DEPENDENCIES: Transmission Control Protocol
 CONTACT: Solomon@WISC.EDU
Reynolds & Postel [Page 29]

RFC 1011 - Official Internet Protocols May 1987
 Domain Name Protocol -------------------------------------- (DOMAIN)
 STATUS: Recommended
 SPECIFICATION: RFC 881, RFC 882, RFC 883 (in DPH)
 COMMENTS:
 OTHER REFERENCES:
 RFC 920 - Domain Requirements
 RFC 921 - Domain Name Implementation Schedule - Revised
 RFC 973 - Domain System Changes and Observations
 RFC 974 - Mail Routing and the Domain System
 DEPENDENCIES: Transmission Control Protocol
 or User Datagram Protocol
 CONTACT: Mockapetris@ISI.EDU
 HOSTNAME Protocol --------------------------------------- (HOSTNAME)
 STATUS: Elective
 SPECIFICATION: RFC 953 (in DPH)
 COMMENTS:
 Accesses the Registered Internet Hosts database (HOSTS.TXT).
 Provides a way to find out about a host in the Internet, its
 Internet Address, and the protocols it implements.
 OTHER REFERENCES:
 RFC 952 - Host Table Specification
 DEPENDENCIES: Transmission Control Protocol
 CONTACT: Feinler@SRI-NIC.ARPA
Reynolds & Postel [Page 30]

RFC 1011 - Official Internet Protocols May 1987
 Host Name Server Protocol ----------------------------- (NAMESERVER)
 STATUS: Experimental
 SPECIFICATION: IEN 116 (in DPH)
 COMMENTS:
 Provides machine oriented procedure for translating a host name
 to an Internet Address.
 This specification has significant problems: 1) The name
 syntax is out of date. 2) The protocol details are ambiguous,
 in particular, the length octet either does or doesn't include
 itself and the op code. 3) The extensions are not supported by
 any known implementation.
 This protocol is now abandoned in favor of the DOMAIN protocol.
 Further implementations of this protocol are not advised.
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES:
 DEPENDENCIES: User Datagram Protocol
 CONTACT: Postel@ISI.EDU
 Daytime Protocol ----------------------------------------- (DAYTIME)
 STATUS: Elective
 SPECIFICATION: RFC 867 (in DPH)
 COMMENTS:
 Provides the day and time in ASCII character string.
 OTHER REFERENCES:
 DEPENDENCIES: Transmission Control Protocol
 or User Datagram Protocol
 CONTACT: Postel@ISI.EDU
Reynolds & Postel [Page 31]

RFC 1011 - Official Internet Protocols May 1987
 Network Time Protocol ---------------------------------------- (NTP)
 STATUS: Experimental
 SPECIFICATION: RFC 958
 COMMENTS:
 A proposed protocol for synchronizing a set of network clocks
 using a set of distributed clients and servers.
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES: RFC 778, RFC 891, RFC 956, and RFC 957.
 DEPENDENCIES: User Datagram Protocol
 CONTACT: Mills@UDEL.EDU
 Time Server Protocol ---------------------------------------- (TIME)
 STATUS: Elective
 SPECIFICATION: RFC 868 (in DPH)
 COMMENTS:
 Provides the time as the number of seconds from a specified
 reference time.
 OTHER REFERENCES:
 DEPENDENCIES: Transmission Control Protocol
 or User Datagram Protocol
 CONTACT: Postel@ISI.EDU
Reynolds & Postel [Page 32]

RFC 1011 - Official Internet Protocols May 1987
 DCNET Time Server Protocol --------------------------------- (CLOCK)
 STATUS: Experimental
 SPECIFICATION: RFC 778
 COMMENTS:
 Provides a mechanism for keeping synchronized clocks.
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES:
 DEPENDENCIES: Internet Control Message Protocol
 CONTACT: Mills@UDEL.EDU
 Authentication Service -------------------------------------- (AUTH)
 STATUS: Experimental
 SPECIFICATION: RFC 931
 COMMENTS:
 This server provides a means to determine the identity of a
 user of a particular TCP connection. Given a TCP port number
 pair, it returns a character string which identifies the owner
 of that connection on the server's system.
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES: Supercedes RFC 912
 DEPENDENCIES: Transmission Control Protocol
 CONTACT: StJohns@SRI-NIC.ARPA
Reynolds & Postel [Page 33]

RFC 1011 - Official Internet Protocols May 1987
 Authentication Scheme --------------------------------- (COOKIE-JAR)
 STATUS: Experimental
 SPECIFICATION: RFC 1004
 COMMENTS:
 This RFC focuses its discussion on authentication problems in
 the Internet and possible methods of solution.
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES:
 DEPENDENCIES:
 CONTACT: Mills@UDEL.EDU
 Internet Message Protocol ------------------------------------ (MPM)
 STATUS: Experimental
 SPECIFICATION: RFC 759 (in DPH)
 COMMENTS:
 This is an experimental multimedia mail transfer protocol. The
 implementation is called a Message Processing Module or MPM.
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES:
 RFC 767 - Structured Document Formats
 DEPENDENCIES: Transmission Control Protocol
 CONTACT: Postel@ISI.EDU
Reynolds & Postel [Page 34]

RFC 1011 - Official Internet Protocols May 1987
 Network Standard Text Editor ------------------------------- (NETED)
 STATUS: Elective
 SPECIFICATION: RFC 569 (in DPH)
 COMMENTS:
 Describes a simple line editor which could be provided by every
 Internet host.
 OTHER REFERENCES:
 DEPENDENCIES:
 CONTACT: Postel@ISI.EDU
Reynolds & Postel [Page 35]

RFC 1011 - Official Internet Protocols May 1987
APPENDICES
 Internet Numbers ---------------------------------------------------
 STATUS: None
 SPECIFICATION: RFC 997
 COMMENTS:
 Describes the fields of network numbers and autonomous system
 numbers that are assigned specific values for actual use, and
 lists the currently assigned values.
 Issued March 1987, replaces RFC 990, RFC 790 in IPTW, and
 RFC 960.
 OTHER REFERENCES:
 CONTACT: Hostmaster@SRI-NIC.ARPA
 Assigned Numbers ---------------------------------------------------
 STATUS: None
 SPECIFICATION: RFC 1010
 COMMENTS:
 Describes the fields of various protocols that are assigned
 specific values for actual use, and lists the currently
 assigned values.
 Issued May 1987, replaces RFC 990, RFC 790 in IPTW, and
 RFC 960.
 OTHER REFERENCES:
 CONTACT: JKREYNOLDS@ISI.EDU
Reynolds & Postel [Page 36]

RFC 1011 - Official Internet Protocols May 1987
 Pre-emption --------------------------------------------------------
 STATUS: Elective
 SPECIFICATION: RFC 794 (in DPH)
 COMMENTS:
 Describes how to do pre-emption of TCP connections.
 OTHER REFERENCES:
 CONTACT: Postel@ISI.EDU
 Service Mappings ---------------------------------------------------
 STATUS: None
 SPECIFICATION: RFC 795 (in DPH)
 COMMENTS:
 Describes the mapping of the IP type of service field onto the
 parameters of some specific networks.
 Out of date, needs revision.
 OTHER REFERENCES:
 CONTACT: Postel@ISI.EDU
 Address Mappings ---------------------------------------------------
 STATUS: None
 SPECIFICATION: RFC 796 (in DPH)
 COMMENTS:
 Describes the mapping between Internet Addresses and the
 addresses of some specific networks.
 Out of date, needs revision.
 OTHER REFERENCES:
 CONTACT: Postel@ISI.EDU
Reynolds & Postel [Page 37]

RFC 1011 - Official Internet Protocols May 1987
 Document Formats ---------------------------------------------------
 STATUS: None
 SPECIFICATION: RFC 678 (in DPH)
 COMMENTS:
 Describes standard format rules for several types of documents.
 OTHER REFERENCES:
 CONTACT: Postel@ISI.EDU
 Equations Representation -------------------------------------------
 STATUS: None
 SPECIFICATION: RFC 1003
 COMMENTS:
 Identifies and explores issues in defining a standard for the
 exchange of mathematical equations.
 OTHER REFERENCES:
 CONTACT: Katz@ISI.EDU
 Bitmap Formats -----------------------------------------------------
 STATUS: None
 SPECIFICATION: RFC 797 (in DPH)
 COMMENTS:
 Describes a standard format for bitmap data.
 OTHER REFERENCES:
 CONTACT: Postel@ISI.EDU
Reynolds & Postel [Page 38]

RFC 1011 - Official Internet Protocols May 1987
 Facsimile Formats --------------------------------------------------
 STATUS: None
 SPECIFICATION: RFC 804
 COMMENTS:
 Describes a standard format for facsimile data.
 OTHER REFERENCES: RFC 769 (in DPH)
 CONTACT: Postel@ISI.EDU
 Host-Front End Protocol ------------------------------------- (HFEP)
 STATUS: Experimental
 SPECIFICATION: RFC 929
 COMMENTS:
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES: RFC 928
 DEPENDENCIES:
 CONTACT: Padlipsky@ISI.EDU
 Internet Protocol on ARPANET ----------------------------- (IP-ARPA)
 STATUS: Recommended
 SPECIFICATION: BBN Report 1822
 COMMENTS:
 Describes the interface between a Host and an IMP, and by
 implication the transmission of IP Datagrams over the ARPANET.
 OTHER REFERENCES: RFC 851, RFC 852, RFC 878 (in DPH), RFC 979,
 RFC 1005
 CONTACT: Malis@BBN.COM
Reynolds & Postel [Page 39]

RFC 1011 - Official Internet Protocols May 1987
 Internet Protocol on WBNET --------------------------------- (IP-WB)
 STATUS: Recommended
 SPECIFICATION: RFC 907 (in DPH)
 COMMENTS:
 Describes a standard for the transmission of IP Datagrams over
 the Wideband Net.
 This protocol specifies the network-access level communication
 between an arbitrary computer, called a host, and a
 packet-switched satellite network, e.g., SATNET or WBNET.
 Note: Implementations of HAP should be performed in
 coordination with satellite network development and operations
 personnel.
 OTHER REFERENCES:
 CONTACT: Blumenthal@BBN.COM
 Internet Protocol on Wideband Network ---------------------- (IP-WB)
 STATUS: Recommended
 SPECIFICATION: RFC 907 (in DPH)
 COMMENTS:
 Describes a standard for the transmission of IP Datagrams over
 the WBNET.
 This protocol specifies the network-access level communication
 between an arbitrary computer, called a host, and a
 packet-switched satellite network, e.g., SATNET or WBNET.
 Note: Implementations of HAP should be performed in
 coordination with satellite network development and operations
 personnel.
 OTHER REFERENCES:
 DEPENDENCIES:
 CONTACT: Schoen@BBN.COM
Reynolds & Postel [Page 40]

RFC 1011 - Official Internet Protocols May 1987
 Internet Protocol on X.25 Networks ------------------------ (IP-X25)
 STATUS: Recommended
 SPECIFICATION: RFC 877 (in DPH)
 COMMENTS:
 Describes a standard for the transmission of IP Datagrams over
 Public Data Networks.
 OTHER REFERENCES:
 CONTACT: jtk@PURDUE.EDU
 Internet Protocol on DC Networks --------------------------- (IP-DC)
 STATUS: Elective
 SPECIFICATION: RFC 891 (in DPH)
 COMMENTS:
 OTHER REFERENCES:
 RFC 778 - DCNET Internet Clock Service
 CONTACT: Mills@UDEL.EDU
 Internet Protocol on Ethernet Networks ---------------------- (IP-E)
 STATUS: Recommended
 SPECIFICATION: RFC 894 (in DPH)
 COMMENTS:
 OTHER REFERENCES: RFC 893
 CONTACT: Postel@ISI.EDU
Reynolds & Postel [Page 41]

RFC 1011 - Official Internet Protocols May 1987
 Internet Protocol on Experimental Ethernet Networks -------- (IP-EE)
 STATUS: Recommended
 SPECIFICATION: RFC 895 (in DPH)
 COMMENTS:
 OTHER REFERENCES:
 CONTACT: Postel@ISI.EDU
 Internet Protocol on IEEE 802 ---------------------------- (IP-IEEE)
 STATUS: Recommended
 SPECIFICATION: see comments
 COMMENTS:
 At an ad hoc special session on "IEEE 802 Networks and ARP"
 held during the TCP Vendors Workshop (August 1986), an approach
 to a consistent way to sent DOD-IP datagrams and other IP
 related protocols on 802 networks was developed.
 Due to some evolution of the IEEE 802.2 standards and the need
 to provide for a standard way to do additional DOD-IP related
 protocols (such as Address Resolution Protocol (ARP)) on IEEE
 802 networks, the following new policy is established, which
 will replace the current policy (see RFC-990 section on IEEE
 802 Numbers of Interest, and RFC-948).
 The policy is for DDN and Internet community to use IEEE 802.2
 encapsulation on 802.3, 802.4, and 802.5 networks by using the
 SNAP with an organization code indicating that the following 16
 bits specify the Ethertype code (where IP = 2048 (0800 hex),
 see RFC-1010 section on Ethernet Numbers of Interest).
 Header
 ...--------+--------+--------+
 MAC Header| Length | 802.{3/4/5} MAC
 ...--------+--------+--------+
 +--------+--------+--------+
 | Dsap=K1| Ssap=K1| control| 802.2 SAP
 +--------+--------+--------+
Reynolds & Postel [Page 42]

RFC 1011 - Official Internet Protocols May 1987
 +--------+--------+---------+--------+--------+
 |protocol id or org code =K2| Ether Type | 802.2 SNAP
 +--------+--------+---------+--------+--------+
 The total length of the SAP Header and the SNAP header is
 8-octets, making the 802.2 protocol overhead come out on a nice
 boundary.
 K1 is 170. The IEEE like to talk about things in bit
 transmission order and specifies this value as 01010101. In
 big-endian order, as used in Internet specifications, this
 becomes 10101010 binary, or AA hex, or 170 decimal.
 K2 is 0 (zero).
 Note: The method described in RFC 948 (in DPH) is no longer to
 be used.
 OTHER REFERENCES:
 CONTACT: Postel@ISI.EDU
 Internet Subnet Protocol ---------------------------------- (IP-SUB)
 STATUS: Required
 SPECIFICATION: RFC 950
 COMMENTS:
 This is a very important feature and must be included in all IP
 implementations.
 Specifies procedures for the use of subnets, which are logical
 sub-sections of a single Internet network.
 OTHER REFERENCES: RFC 940, RFC 917, RFC 925, RFC 932, RFC 936,
 RFC 922
 DEPENDENCIES:
 CONTACT: Mogul@SU-SCORE.STANFORD.EDU
Reynolds & Postel [Page 43]

RFC 1011 - Official Internet Protocols May 1987
 Address Resolution Protocol ---------------------------------- (ARP)
 STATUS: Recommended
 SPECIFICATION: RFC 826 (IN DPH)
 COMMENTS:
 This is a procedure for finding the network hardware address
 corresponding to an Internet Address.
 OTHER REFERENCES:
 CONTACT: Postel@ISI.EDU
 A Reverse Address Resolution Protocol ----------------------- (RARP)
 STATUS: Elective
 SPECIFICATION: RFC 903 (IN DPH)
 COMMENTS:
 This is a procedure for workstations to dynamically find their
 protocol address (e.g., their Internet Address), when they only
 only know their hardware address (e.g., their attached physical
 network address).
 OTHER REFERENCES:
 CONTACT: Mogul@SU-SCORE.STANFORD.EDU
 Multi-LAN Address Resolution Protocol ----------------------- (MARP)
 STATUS: Experimental
 SPECIFICATION: RFC 925
 COMMENTS:
 Discussion of the various problems and potential solutions of
 "transparent subnets" in a multi-LAN environment.
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES: RFC 917, RFC 826
Reynolds & Postel [Page 44]

RFC 1011 - Official Internet Protocols May 1987
 DEPENDENCIES:
 CONTACT: Postel@ISI.EDU
 Broadcasting Internet Datagrams ------------------------- (IP-BROAD)
 STATUS: Recommended
 SPECIFICATION: RFC 919
 COMMENTS:
 A proposed protocol of simple rules for broadcasting Internet
 datagrams on local networks that support broadcast, for
 addressing broadcasts, and for how gateways should handle them.
 Recommended in the sense of "if you do broadcasting at all then
 do it this way".
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES: RFC 922
 DEPENDENCIES:
 CONTACT: Mogul@SU-SCORE.STANFORD.EDU
 Broadcasting Internet Datagrams with Subnets --------- (IP-SUB-BROAD)
 STATUS: Recommended
 SPECIFICATION: RFC 922
 COMMENTS:
 A proposed protocol of simple rules for broadcasting Internet
 datagrams on local networks that support broadcast, for
 addressing broadcasts, and for how gateways should handle them.
 Recommended in the sense of "if you do broadcasting with
 subnets at all then do it this way".
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES: RFC 919
Reynolds & Postel [Page 45]

RFC 1011 - Official Internet Protocols May 1987
 DEPENDENCIES:
 CONTACT: Mogul@SU-SCORE.STANFORD.EDU
 Reliable Asynchronous Transfer Protocol --------------------- (RATP)
 STATUS: Experimental
 SPECIFICATION: RFC 916
 COMMENTS:
 This paper specifies a protocol which allows two programs to
 reliably communicate over a communication link. It ensures
 that the data entering one end of the link if received arrives
 at the other end intact and unaltered. This proposed protocol
 is designed to operate over a full duplex point-to-point
 connection. It contains some features which tailor it to the
 RS-232 links now in current use.
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES:
 DEPENDENCIES: Transmission Control Protocol
 CONTACT: Finn@ISI.EDU
 Thinwire Protocol --------------------------------------- (THINWIRE)
 STATUS: Experimental
 SPECIFICATION: RFC 914
 COMMENTS:
 This paper discusses a Thinwire Protocol for connecting
 personal computers to the Internet. It primarily focuses on
 the particular problems in the Internet of low speed network
 interconnection with personal computers, and possible methods
 of solution.
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES:
Reynolds & Postel [Page 46]

RFC 1011 - Official Internet Protocols May 1987
 DEPENDENCIES:
 CONTACT: Farber@UDEL.EDU
Reynolds & Postel [Page 47]

RFC 1011 - Official Internet Protocols May 1987
ISO and CCITT PROTOCOLS
 The International Standards Organization (ISO) and the International
 Telegraph and Telephone Consultative Committee (CCITT) are defining a
 set of protocols that may be of interest to the Internet community.
 Some of these have been published as RFCs for information purposes.
 This section lists these protocols.
 End System to Intermediate System Routing Exchange Protocol --------
 STATUS:
 SPECIFICATION: RFC 995
 COMMENTS:
 This protocol is one of a set of International Standards
 produced to facilitate the interconnection of open systems.
 The set of standards covers the services and protocols required
 to achieve such interconnection. This protocol is positioned
 with respect to other related standards by the layers defined
 in the Reference Model for Open Systems Interconnection (ISO
 7498) and by the structure defined in the Internal Organization
 of the Network Layer (DIS 8648). In particular, it is a
 protocol of the Network Layer. This protocol permits End
 Systems and Intermediate Systems to exchange configuration and
 routing information to facilitate the operation of the routing
 and relaying functions of the Network Layer.
 OTHER REFERENCES: RFC 994
 DEPENDENCIES:
 CONTACT: ANSI
 Connectionless Mode Network Service --------------------- (ISO-8473)
 STATUS:
 SPECIFICATION: RFC 994
 COMMENTS:
 This Protocol Standard is one of a set of International
 Standards produced to facilitate the interconnection of open
 systems. The set of standards covers the services and
 protocols required to achieve such interconnection. This
Reynolds & Postel [Page 48]

RFC 1011 - Official Internet Protocols May 1987
 Protocol Standard is positioned with respect to other related
 standards by the layers defined in the Reference Model for Open
 Systems Interconnection (ISO 7498). In particular, it is a
 protocol of the Network Layer. This Protocol may be used
 between network-entities in end systems or in Network Layer
 relay systems (or both). It provides the Connectionless-mode
 Network Service as defined in Addendum 1 to the Network Service
 Definition Covering Connectionless-mode Transmission (ISO
 8348/AD1).
 OTHER REFERENCES: RFC 926
 DEPENDENCIES:
 CONTACT: ANSI
 Internet-IP Addressing in ISO-IP -----------------------------------
 STATUS:
 SPECIFICATION: RFC 986
 COMMENTS:
 This RFC suggests a method to allow the existing IP addressing,
 including the IP protocol field, to be used for the ISO
 Connectionless Network Protocol (CLNP). This is a draft
 solution to one of the problems inherent in the use of
 "ISO-grams" in the DoD Internet. Related issues will be
 discussed in subsequent RFCs. This RFC suggests a proposed
 protocol for the Internet community, and requests discussion
 and suggestions for improvements.
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES:
 DEPENDENCIES:
 CONTACT: RCallon@BBN.COM
Reynolds & Postel [Page 49]

RFC 1011 - Official Internet Protocols May 1987
 Network Layer Addressing -------------------------------------------
 STATUS:
 SPECIFICATION: RFC 941
 COMMENTS:
 This Addendum to the Network Service Definition Standard, ISO
 8348, defines the abstract syntax and semantics of the Network
 Address (Network Service Access Point Address). The Network
 Address defined in this Addendum is the address that appears in
 the primitives of the connection-mode Network Service as the
 calling address, called address, and responding address
 parameters, and in the primitives of the connectionless-mode
 Network Service as the source address and destination
 address parameters.
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES:
 DEPENDENCIES:
 CONTACT: ISO
 Transport Protocol Specification ------------------------ (ISO-8073)
 STATUS:
 SPECIFICATION: RFC 905
 COMMENTS:
 This is the current specification of the ISO Transport
 Protocol. This document is the text of ISO/TC97/SC16/N1576 as
 corrected by ISO/TC97/SC16/N1695. This is the specification
 currently being voted on in ISO as a Draft International
 Standard (DIS).
 OTHER REFERENCES: RFC 892
 DEPENDENCIES:
 CONTACT: ISO
Reynolds & Postel [Page 50]

RFC 1011 - Official Internet Protocols May 1987
 ISO Transport Services on Top of the TCP ---------------------------
 STATUS:
 SPECIFICATION: RFC 1006
 COMMENTS:
 This memo describes a proposed protocol standard for the
 Internet community. The CCITT and the ISO have defined various
 session, presentation, and application recommendations which
 have been adopted by the international community and numerous
 vendors. To the largest extent possible, it is desirable to
 offer these higher level services directly to the Internet,
 without disrupting existing facilities. This permits users to
 develop expertise with ISO and CCITT applications which
 previously were not available in the Internet. The intention
 is that hosts within the Internet that choose to implement ISO
 TSAP services on top of the TCP be expected to adopt and
 implement this standard. Suggestions for improvement are
 encouraged.
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES: RFC 983
 DEPENDENCIES:
 CONTACT: DCass@NRTC.NORTHROP.COM
 Mapping Between X.400 and RFC 822 -------------------------- (X.400)
 STATUS:
 SPECIFICATION: RFC 987
 COMMENTS:
 The X.400 series of protocols have been defined by CCITT to
 provide an Interpersonal Messaging Service (IPMS), making use
 of a store and forward Message Transfer Service. It is
 expected that this standard will be implemented very widely.
 This document describes a set of mappings which will enable
 interworking between systems operating the X.400 protocols and
 systems using RFC 822 mail protocol or protocols derived from
 RFC 822.
Reynolds & Postel [Page 51]

RFC 1011 - Official Internet Protocols May 1987
 Please discuss any plans for implementation or use of this
 protocol with the contact.
 OTHER REFERENCES:
 DEPENDENCIES:
 CONTACT: Kille@CS.UCL.AC.UK
Reynolds & Postel [Page 52]

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