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ObsoletedPROPOSED STANDARDIETF stream

RFC 3489: STUN - Simple Traversal of User Datagram Protocol (UDP) Through Network Address Translators (NATs)

This RFC has been replaced. Do not implement against it for new work — it was formally obsoleted by RFC 5389.

Current document in this lineage: RFC 8489 — Session Traversal Utilities for NAT (STUN)

In plain English — editorial summary, not part of the RFC

Simple Traversal of User Datagram Protocol (UDP) Through Network Address Translators (NATs) (STUN) is a lightweight protocol that allows applications to discover the presence and types of NATs and firewalls between them and the public Internet. It also provides the ability for applications to determine the public Internet Protocol (IP) addresses allocated to them by the NAT. STUN works with many existing NATs, and does not require any special behavior from them. As a result, it allows a wide variety of applications to work through existing NAT infrastructure. [STANDARDS-TRACK]

Document record

Document ID
RFC3489
Published
March 2003
Authors
J. Rosenberg; J. Weinberger; C. Huitema; R. Mahy
Status
PROPOSED STANDARD
Stream
IETF
Area
tsv
Pages
47
Also known as
—
Obsoleted by:
RFC 5389

Topics

Standards lineage

This document is one revision in a chain of 3 RFCs, each formally replacing the one before it.

  1. RFC 3489 (2003)
  2. RFC 5389 (2008)
  3. RFC 8489 (2020) ✓

Read the full history of Session Traversal Utilities for NAT (STUN) →

Referenced by

One later RFC formally updates or obsoletes part of this document.

Related documents

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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

Last checked against the RFC Editor index on . RFCs are never revised after publication; changes are issued as new documents.

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canonical URL: /rfc/3489-stun-simple-traversal-of-user-datagram-protocol-udp-through-network-address-tran