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RE: Reserved Network Numbers
- From: James R. Saker Jr.
- Date: Tue Mar 25 11:45:20 1997
Geoff White [SMTP:firstname.lastname@example.org] writes:
Now for a brief excursion into the totally mundane.
Can anyone point me to the internet-draft/RFC that
specifies the "reserverd networks" (i.e. the class A,B, & C [sic]
network numbers that are considered "safe" (no-one should be routing them)
to use as test/intranet/private IP networks?
I believe you're looking for RFC 1918. Here's the header; document available at:
Network Working Group Y. Rekhter
Request for Comments: 1918 Cisco Systems
Obsoletes: 1627, 1597 B. Moskowitz
BCP: 5 Chrysler Corp.
Category: Best Current Practice D. Karrenberg
G. J. de Groot
Silicon Graphics, Inc.
Address Allocation for Private Internets
Status of this Memo
This document specifies an Internet Best Current Practices for the
Internet Community, and requests discussion and suggestions for
improvements. Distribution of this memo is unlimited.
For the purposes of this document, an enterprise is an entity
autonomously operating a network using TCP/IP and in particular
determining the addressing plan and address assignments within that
This document describes address allocation for private internets. The
allocation permits full network layer connectivity among all hosts
inside an enterprise as well as among all public hosts of different
enterprises. The cost of using private internet address space is the
potentially costly effort to renumber hosts and networks between
public and private.
James R. Saker Jr. James_Saker@Intellitek.com
Network Media Division voice: 402.333.6233
Intellitek Corporation fax: 402.333.6432
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