RFC 3138 (rfc3138) - Page 1 of 4
Extended Assignments in 233/8
Alternative Format: Original Text Document
Network Working Group D. Meyer
Request for Comments: 3138 Sprint
Category: Informational June 2001
Extended Assignments in 233/8
Status of this Memo
This memo provides information for the Internet community. It does
not specify an Internet standard of any kind. Distribution of this
memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2001). All Rights Reserved.
Abstract
This memo provides describes the mapping of the GLOP addresses
corresponding to the private AS space.
1. Introduction
RFC 2770 [RFC 2770] describes an experimental policy for use of the
class D address space using 233/8. The technique described there
maps 16 bits of Autonomous System number (AS) into the middle two
octets of 233/8 to yield a /24. While this technique has been
successful, the assignments are inefficient in those cases in which a
/24 is too small or the user doesn't have its own AS.
RFC 1930 [RFC 1930] defines the private AS space to be 64512 through
65535. This memo expands on RFC 2770 to allow routing registries to
assign multicast addresses from the GLOP space corresponding to the
RFC 1930 private AS space. This space will be referred to as the
EGLOP (Extended GLOP) address space.
This memo is a product of the Multicast Deployment Working Group
(MBONED) in the Operations and Management Area of the Internet
Engineering Task Force. Submit comments to <mboned@ns.uoregon.edu>
or the authors.
The terms "Specification Required", "Expert Review", "IESG Approval",
"IETF Consensus", and "Standards Action", are used in this memo to
refer to the processes described in [RFC 2434]. The keywords MUST,
MUST NOT, MAY, OPTIONAL, REQUIRED, RECOMMENDED, SHALL, SHALL NOT,
SHOULD, SHOULD NOT are to be interpreted as defined in RFC 2119
[RFC 2119].
Meyer Informational
