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Requirements for Discovering Middleboxes

Document Type Expired Internet-Draft (individual)
Expired & archived
Author Eliot Lear
Last updated 2001-04-05
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


The end to end nature of the Internet has been broken. Boxes within the middle of the network may change contents of packets at the Internet layer or above without the knowledge of the end devices. As these middleboxes such as NATs and firewalls have proliferated within the Internet, protocols are being developed to communicate with them. This document addresses requirements for discovery of those boxes.


Eliot Lear

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)