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ARPANET 1822L Host Access Protocol (RFC0878)

IP.com Disclosure Number: IPCOM000003927D
Original Publication Date: 1983-Dec-01
Included in the Prior Art Database: 2000-Sep-13
Document File: 38 page(s) / 74K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

A.G. Malis: AUTHOR

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 4% of the total text.

Request for Comments: 878

Obsoletes RFCs: 851, 802

The ARPANET 1822L Host Access Protocol

RFC 878

Andrew G. Malis

ARPANET Mail: malis@bbn-unix

BBN Communications Corp.

50 Moulton St.

Cambridge, MA 02238

December 1983

This RFC specifies the ARPANET 1822L Host Access Protocol, which

is a successor to the existing 1822 Host Access Protocol. 1822L

allows ARPANET hosts to use logical names as well as 1822's

physical port locations to address each other.

1822L Host Access Protocol December 1983

RFC 878

Table of Contents

1 INTRODUCTION.......................................... 1

2 THE ARPANET 1822L HOST ACCESS PROTOCOL................ 3

2.1 Addresses and Names................................. 5

2.2 Name Translations................................... 7

2.2.1 Authorization and Effectiveness................... 7

2.2.2 Translation Policies............................. 11

2.2.3 Reporting Destination Host Downs................. 13

2.2.4 1822L and 1822 Interoperability.................. 15

2.3 Uncontrolled Packets............................... 16

2.4 Establishing Host-IMP Communications............... 19

2.5 Counting RFNMs When Using 1822L.................... 20

2.6 1822L Name Server.................................. 23

3 1822L LEADER FORMATS................................. 25

3.1 Host-to-IMP 1822L Leader Format.................... 26

3.2 IMP-to-Host 1822L Leader Format.................... 34

4 REFERENCES........................................... 42

A 1822L-IP ADDRESS MAPPINGS............................ 43

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1822L Host Access Protocol December 1983

RFC 878

FIGURES

2.1 1822 Address Format.................................. 5

2.2 1822L Name Format.................................... 6

2.3 1822L Address Format................................. 6

3.1 Host-to-IMP 1822L Leader Format..................... 27

3.2 NDM Message Format.................................. 30

3.3 IMP-to-Host 1822L Leader Format..................... 35

3.4 Name Server Reply Format............................ 38

A.1 1822 Class A Mapping................................ 44

A.2 1822L Class A Mapping............................... 44

A.3 1822L Class B Mapping............................... 45

A.4 1822L Class C Mapping............................... 46

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1822L Host Access Protocol December 1983

RFC 878

1 INTRODUCTION

This RFC specifies the ARPANET 1822L Host Acc...