RFC 1475 (rfc1475) - Page 1 of 35
TP/IX: The Next Internet
Alternative Format: Original Text Document
Network Working Group R. Ullmann
Request for Comments: 1475 Process Software Corporation
June 1993
TP/IX: The Next Internet
Status of this Memo
This memo defines an Experimental Protocol for the Internet
community. It does not specify an Internet standard. Discussion and
suggestions for improvement are requested. Please refer to the
current edition of the "IAB Official Protocol Standards" for the
standardization state and status of this protocol. Distribution of
this memo is unlimited.
Abstract
The first version of this memo, describing a possible next generation
of Internet protocols, was written by the present author in the
summer and fall of 1989, and circulated informally, including to the
IESG, in December 1989. A further informal note on the addressing,
called "Toasternet Part II", was circulated on the IETF mail list
during March of 1992.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . 3
1.1 Objectives . . . . . . . . . . . . . . . . . . . . 5
1.2 Philosophy . . . . . . . . . . . . . . . . . . . . 6
2. Internet numbers . . . . . . . . . . . . . . . . . . 6
2.1 Is 64 Bits Enough? . . . . . . . . . . . . . . . . 6
2.2 Why version 7? . . . . . . . . . . . . . . . . . . 7
2.3 The version 7 IP address . . . . . . . . . . . . . 7
2.4 AD numbers . . . . . . . . . . . . . . . . . . . . 8
2.5 Mapping of version 4 numbers . . . . . . . . . . . 8
3. IP: Internet datagram protocol . . . . . . . . . . . 9
3.1 IP datagram header format . . . . . . . . . . . . 10
3.1.1 Version . . . . . . . . . . . . . . . . . . . . 10
3.1.2 Header length . . . . . . . . . . . . . . . . . 10
3.1.3 Time to live . . . . . . . . . . . . . . . . . 10
3.1.4 Total datagram length . . . . . . . . . . . . . 11
3.1.5 Forward route identifier . . . . . . . . . . . 11
3.1.6 Destination . . . . . . . . . . . . . . . . . . 11
3.1.7 Source . . . . . . . . . . . . . . . . . . . . 11
3.1.8 Protocol . . . . . . . . . . . . . . . . . . . 11
3.1.9 Checksum . . . . . . . . . . . . . . . . . . . 11
3.1.10 Options . . . . . . . . . . . . . . . . . . . . 11
Ullmann
