Unique Addresses are Good (RFC1814)
Original Publication Date: 1995-Jun-01
Included in the Prior Art Database: 2000-Sep-13
Internet Society Requests For Comment (RFCs)
The IAB suggests that while RFC 1597 establishes reserved IP address space for the use of private networks which are isolated and will remain isolated from the Internet, any enterprise which anticipates external connectivity to the Internet should apply for a globally unique address from an Internet registry or service provider.
Network Working Group E. Gerich
Request for Comments: 1814 Merit Network Inc.
Category: Informational June 1995
Unique Addresses are Good
Status of this Memo
This memo provides information for the Internet community. This memo
does not specify an Internet standard of any kind. Distribution of
this memo is unlimited.
The IAB suggests that while RFC 1597 establishes reserved IP address
space for the use of private networks which are isolated and will
remain isolated from the Internet, any enterprise which anticipates
external connectivity to the Internet should apply for a globally
unique address from an Internet registry or service provider.
With the advent of RFC 1466 and RFC 1597 the criteria for the
allocation of unique IP numbers and the reservation of unique IP
numbers have been defined. The IAB and the IANA wish to offer
guidance to the Internet registries as to the application of these
two documents. The author submits this document as an informational
RFC on behalf of the Internet Architecture Board and the IANA.
Guidance to Internet Registries
RFC 1466 lists the criteria to which Internet registries should
conform. One of the criteria is that the Internet registry is
committed to allocate IP numbers according to the guidelines
established by the IANA and the IR. Those guidelines (for Classes A,
B, and C addresses) are documented in RFC 1466.
Internet Registries have agreed to comply with the guidelines
established by RFC 1466 and therefore, if an organization meets the
size requirement for the requested address(es) and submits an
engineering plan, the organization has fulfilled the necessary
requirements. The Internet Registry will make the allocation based
on the established criteria.
The preconditions defined in RFC 1466 are limited to number of hosts
and subnets as well as an engineering plan. The existence of private
address space (RFC 1597) shall not prevent an enterprise from
obtaining public address space according to the allocation criteria
(currently, RFC 1466).
An enterprise may be required by a Internet registry to submit an
engineering plan documenting a realistic deployment schedule and
reasonable attention to conservation of address space to support the
size of the enterprise's request for globally unique IP addresses.
It is perfectly appropriate for an Internet registry to inform an
organization of the provisions of RFC 1597. Any organization
considering the us...