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ARPANET 1822L Host Access Protocol (RFC0851)

IP.com Disclosure Number: IPCOM000003898D
Original Publication Date: 1983-Apr-18
Included in the Prior Art Database: 2000-Sep-13
Document File: 35 page(s) / 69K

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: 851

Obsoletes RFC: 802

The ARPANET 1822L Host Access Protocol

RFC 851

Andrew G. Malis

ARPANET Mail: malis@bbn-unix

Bolt Beranek and Newman Inc.

50 Moulton St.

Cambridge, MA 02238

April 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. The RFC is also

being presented as a solicitation of comments on 1822L,

especially from host network software implementers and

maintainers.

1822L Host Access Protocol April 1983

RFC 851

Table of Contents

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

2 THE ARPANET 1822L HOST ACCESS PROTOCOL................ 4

2.1 Addresses and Names................................. 6

2.2 Name Translations................................... 8

2.2.1 Authorization and Effectiveness................... 8

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

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

2.2.4 1822L and 1822 Interoperability.................. 16

2.3 Uncontrolled Packets............................... 18

2.4 Establishing Host-IMP Communications............... 20

2.5 Counting RFMS When Using 1822L..................... 22

2.6 1822L Name Server.................................. 24

3 1822L LEADER FORMATS................................. 27

3.1 Host-to-IMP 1822L Leader Format.................... 28

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

4 REFERENCES........................................... 43

- i -

1822L Host Access Protocol April 1983

RFC 851

FIGURES

1822 Address Format....................................... 6

1822L Name Format......................................... 7

1822L Address Format...................................... 7

Communications between different host types.............. 17

Host-to-IMP 1822L Leader Format.......................... 28

NDM Message Format....................................... 31

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

Name Server Reply Format................................. 39

- ii -

1822L Host Access Protocol April 1983

RFC 851

1 INTRODUCTION

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

will allow hosts to use logical addressing (i.e., host names that