NAT Behavior Discovery Using STUN

Document Type Replaced Internet-Draft (individual)
Authors Derek MacDonald  , Bruce Lowekamp 
Last updated 2007-03-01 (latest revision 2006-10-17)
Replaced by RFC 5780
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Expired & archived
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Stream Stream state (No stream defined)
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IESG IESG state Replaced by draft-ietf-behave-nat-behavior-discovery
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This specification defines a usage of the Simple Traversal Underneath Network Address Translators (NAT) (STUN) Protocol that allows the applications to discover the presence and current behaviour of NATs and firewalls between them and the STUN server.


Derek MacDonald (
Bruce Lowekamp (

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