RFC 3234 (rfc3234) - Page 1 of 27

Middleboxes: Taxonomy and Issues

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Network Working Group                                       B. Carpenter
Request for Comments: 3234                IBM Zurich Research Laboratory
Category: Informational                                          S. Brim
                                                           February 2002


                    Middleboxes: Taxonomy and Issues

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 (2002).  All Rights Reserved.

Abstract

   This document is intended as part of an IETF discussion about
   "middleboxes" - defined as any intermediary box performing functions
   apart from normal, standard functions of an IP router on the data
   path between a source host and destination host.  This document
   establishes a catalogue or taxonomy of middleboxes, cites previous
   and current IETF work concerning middleboxes, and attempts to
   identify some preliminary conclusions.  It does not, however, claim
   to be definitive.























Carpenter & Brim             Informational
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