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A Firewall/NAT Traversal Client for CASP

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Hannes Tschofenig , Henning Schulzrinne , Cedric Aoun
Last updated 2003-03-07
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This Internet-Draft is no longer active.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:


This document describes a CASP client protocol that allows nodes to signal information to firewalls both in an in-path and off-path fashion. The protocol furthermore allows to establish a NAT binding and to provide the signaling initiator with the NAT information. This is information can then be used within other protocols such as SIP.


Hannes Tschofenig
Henning Schulzrinne
Cedric Aoun

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