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DoD Internet host table specification (RFC0810)

IP.com Disclosure Number: IPCOM000004294D
Original Publication Date: 1982-Mar-01
Included in the Prior Art Database: 2000-Sep-13
Document File: 6 page(s) / 14K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

E.J. Feinler: AUTHOR [+4]

Abstract

The ARPANET Official Network Host Table, as outlined in RFC 608, no longer suits the needs of the DoD community, nor does it follow a format suitable for internetting. This paper specifies a new host table format applicable to both ARPANET and Internet needs.

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 23% of the total text.

Elizabeth Feinler RFC 810

Ken Harrenstien 1 March 1982

Zaw-Sing Su References: RFC 811, 796

Vic White Obsoletes: RFC 608

Network Information Center

SRI International

DoD INTERNET HOST TABLE SPECIFICATION

INTRODUCTION

The ARPANET Official Network Host Table, as outlined in RFC 608, no

longer suits the needs of the DoD community, nor does it follow a

format suitable for internetting. This paper specifies a new host

table format applicable to both ARPANET and Internet needs.

In addition to host name to host address translation and selected

protocol information, we have also included network and gateway name

to address correspondence, and host operating system information.

This Host Table is utilized by the DoD Host Name Server maintained by

the ARPANET Network Information Center (NIC) on behalf of the Defense

Communications Agency (DCA) (RFC 811). It obsoletes the host table

described in RFC 608.

LOCATION OF THE STANDARD DoD ONLINE HOST TABLE

A machine-translatable ASCII text version of the new DoD Host Table

is online in the file HOSTS.TXT on the SRI-NIC host. It can

be obtained by connecting to host SRI-NIC (10.0.0.73) from your local

FTP server, logging in as user=ANONYMOUS, password=GUEST, and doing a

'get' on HOSTS.TXT. The same table may also be obtained via

the NIC Host Name Server.

NOTE: See Appendix A. for timeframe for cutover.

ASSUMPTIONS

1. A "name" (Net, Host, Gateway, or Domain name) is a text string up

to 24 characters drawn from the alphabet (A-Z), digits (0-9), and the

minus sign (-) and period (.). No blank or space characters are

permitted as part of a name. No distinction is made between upper

and lower case. The first character must be a letter. The last

character must not be a minus sign or period. A host which serves as

a GATEWAY should have "-GATEWAY" or "-GW" as part of its name. A

host which is a TIP or a TAC should have "-TIP" or "-TAC" as part of

its host name, if it is an ARPANET or DoD host.

2. Internet Addresses are 32-bit addresses (RFC 796). In the host

table described herein each address is represented by four decimal

numbers separated by a period. Each decimal number represents 1

octet.

RFC 810 1 March 1982

Host Table Specification

3. If the first bit of the first octet of the address is 0 (zero),

then the next 7 bits of the first octet indicate the network number

(Class A Address). If the first two bits are 1,0 (one,zero), then

the next 14 bits define the net number (Class B Address). If the

first 3 bits are 1,1,0 (one,one,zero), then the next 21 bits define

the net number (Class C Address) (RFC 796).

This is depicted in the following diagram:

+--------------+--...