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1.
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Clear description of the referenced document:
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2.
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Status of approval:
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Approved as standards track IETF Proposed Standard in February 2020.
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3.
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Justification for the specific reference:
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This RFC is the most recent document to define Session Traversal Utilities for NAT (STUN). It is referenced in ITU-T J.299 (revised in May 2023 by ITU-T SG9)
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4.
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Current information, if any, about IPR issues:
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five patents are found in the IETF website (https://datatracker.ietf.org/ipr/search/?rfc=8489&submit=rfc)
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5.
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Other useful information describing the "Quality" of the document:
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This RFC is a proposed standard approved in February 2020. Obsoletes RFC 5389.
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6.
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The degree of stability or maturity of the document:
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Last updated 2020-09-16. Obsoletes RFC 5389.
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7.
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Relationship with other existing or emerging documents:
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BBF TR-069 defines STUN in Annex G but it is considered obsolete. This obsoleted its previous version, RFC5389
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8.
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Any explicit references within that referenced document should also be listed:
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20.1. Normative References/
[ITU.V42.2002] International Telecommunication Union, "Error-correcting procedures for DCEs using asynchronous-to-synchronous conversion", ITU-T Recommendation V.42, March 2002./
[KARN87] Karn, P. and C. Partridge, "Improving Round-Trip Time Estimates in Reliable Transport Protocols", SIGCOMM '87, Proceedings of the ACM workshop on Frontiers in computer communications technology, Pages 2-7, DOI 10.1145/55483.55484, August 1987./
[RFC0791] Postel, J., "Internet Protocol", STD 5, RFC 791, DOI 10.17487/RFC0791, September 1981, https://www.rfc-editor.org/info/rfc791./
[RFC1122] Braden, R., Ed., "Requirements for Internet Hosts - Communication Layers", STD 3, RFC 1122, DOI 10.17487/RFC1122, October 1989, https://www.rfc-editor.org/info/rfc1122./
[RFC1123] Braden, R., Ed., "Requirements for Internet Hosts - Application and Support", STD 3, RFC 1123, DOI 10.17487/RFC1123, October 1989, https://www.rfc-editor.org/info/rfc1123./
[RFC1321] Rivest, R., "The MD5 Message-Digest Algorithm", RFC 1321, DOI 10.17487/RFC1321, April 1992, https://www.rfc-editor.org/info/rfc1321./
[RFC2104] Krawczyk, H., Bellare, M., and R. Canetti, "HMAC: Keyed- Hashing for Message Authentication", RFC 2104, DOI 10.17487/RFC2104, February 1997, https://www.rfc-editor.org/info/rfc2104./
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March 1997, https://www.rfc-editor.org/info/rfc2119./
[RFC2782] Gulbrandsen, A., Vixie, P., and L. Esibov, "A DNS RR for specifying the location of services (DNS SRV)", RFC 2782, DOI 10.17487/RFC2782, February 2000, https://www.rfc-editor.org/info/rfc2782./
[RFC3629] Yergeau, F., "UTF-8, a transformation format of ISO 10646", STD 63, RFC 3629, DOI 10.17487/RFC3629, November 2003, https://www.rfc-editor.org/info/rfc3629./
[RFC4648] Josefsson, S., "The Base16, Base32, and Base64 Data Encodings", RFC 4648, DOI 10.17487/RFC4648, October 2006, https://www.rfc-editor.org/info/rfc4648./
[RFC5890] Klensin, J., "Internationalized Domain Names for Applications (IDNA): Definitions and Document Framework", RFC 5890, DOI 10.17487/RFC5890, August 2010, https://www.rfc-editor.org/info/rfc5890./
[RFC6125] Saint-Andre, P. and J. Hodges, "Representation and Verification of Domain-Based Application Service Identity within Internet Public Key Infrastructure Using X.509 (PKIX) Certificates in the Context of Transport Layer Security (TLS)", RFC 6125, DOI 10.17487/RFC6125, March 2011, https://www.rfc-editor.org/info/rfc6125./
[RFC6151] Turner, S. and L. Chen, "Updated Security Considerations for the MD5 Message-Digest and the HMAC-MD5 Algorithms", RFC 6151, DOI 10.17487/RFC6151, March 2011, https://www.rfc-editor.org/info/rfc6151./
[RFC6298] Paxson, V., Allman, M., Chu, J., and M. Sargent, "Computing TCP's Retransmission Timer", RFC 6298, DOI 10.17487/RFC6298, June 2011, https://www.rfc-editor.org/info/rfc6298./
[RFC6347] Rescorla, E. and N. Modadugu, "Datagram Transport Layer Security Version 1.2", RFC 6347, DOI 10.17487/RFC6347, January 2012, https://www.rfc-editor.org/info/rfc6347./
[RFC7064] Nandakumar, S., Salgueiro, G., Jones, P., and M. Petit- Huguenin, "URI Scheme for the Session Traversal Utilities for NAT (STUN) Protocol", RFC 7064, DOI 10.17487/RFC7064, November 2013, https://www.rfc-editor.org/info/rfc7064./
[RFC7350] Petit-Huguenin, M. and G. Salgueiro, "Datagram Transport Layer Security (DTLS) as Transport for Session Traversal Utilities for NAT (STUN)", RFC 7350, DOI 10.17487/RFC7350, August 2014, https://www.rfc-editor.org/info/rfc7350./
[RFC7616] Shekh-Yusef, R., Ed., Ahrens, D., and S. Bremer, "HTTP Digest Access Authentication", RFC 7616, DOI 10.17487/RFC7616, September 2015, https://www.rfc-editor.org/info/rfc7616./
[RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC 2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174, May 2017, https://www.rfc-editor.org/info/rfc8174./
[RFC8200] Deering, S. and R. Hinden, "Internet Protocol, Version 6 (IPv6) Specification", STD 86, RFC 8200, DOI 10.17487/RFC8200, July 2017, https://www.rfc-editor.org/info/rfc8200./
[RFC8265] Saint-Andre, P. and A. Melnikov, "Preparation, Enforcement, and Comparison of Internationalized Strings Representing Usernames and Passwords", RFC 8265, DOI 10.17487/RFC8265, October 2017, https://www.rfc-editor.org/info/rfc8265./
[RFC8305] Schinazi, D. and T. Pauly, "Happy Eyeballs Version 2: Better Connectivity Using Concurrency", RFC 8305, DOI 10.17487/RFC8305, December 2017, https://www.rfc-editor.org/info/rfc8305./
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20.2. Informative References/
[Argon2] Biryukov, A., Dinu, D., Khovratovich, D., and S. Josefsson, "The memory-hard Argon2 password hash and proof-of-work function", Work in Progress, draft-irtf- cfrg-argon2-09, November 2019./
[BCP195] Sheffer, Y., Holz, R., and P. Saint-Andre, "Recommendations for Secure Use of Transport Layer Security (TLS) and Datagram Transport Layer Security (DTLS)", BCP 195, RFC 7525, May 2015, https://www.rfc-editor.org/info/bcp195./
[RFC1952] Deutsch, P., "GZIP file format specification version 4.3", RFC 1952, DOI 10.17487/RFC1952, May 1996, https://www.rfc-editor.org/info/rfc1952./
[RFC2279] Yergeau, F., "UTF-8, a transformation format of ISO 10646", RFC 2279, DOI 10.17487/RFC2279, January 1998, https://www.rfc-editor.org/info/rfc2279./
[RFC3261] Rosenberg, J., Schulzrinne, H., Camarillo, G., Johnston, A., Peterson, J., Sparks, R., Handley, M., and E. Schooler, "SIP: Session Initiation Protocol", RFC 3261, DOI 10.17487/RFC3261, June 2002, https://www.rfc-editor.org/info/rfc3261./
[RFC3424] Daigle, L., Ed. and IAB, "IAB Considerations for UNilateral Self-Address Fixing (UNSAF) Across Network Address Translation", RFC 3424, DOI 10.17487/RFC3424, November 2002, https://www.rfc-editor.org/info/rfc3424./
[RFC3454] Hoffman, P. and M. Blanchet, "Preparation of Internationalized Strings ("stringprep")", RFC 3454, DOI 10.17487/RFC3454, December 2002, https://www.rfc-editor.org/info/rfc3454./
[RFC3489] Rosenberg, J., Weinberger, J., Huitema, C., and R. Mahy, "STUN - Simple Traversal of User Datagram Protocol (UDP) Through Network Address Translators (NATs)", RFC 3489, DOI 10.17487/RFC3489, March 2003, https://www.rfc-editor.org/info/rfc3489./
[RFC4013] Zeilenga, K., "SASLprep: Stringprep Profile for User Names and Passwords", RFC 4013, DOI 10.17487/RFC4013, February 2005, https://www.rfc-editor.org/info/rfc4013./
[RFC4107] Bellovin, S. and R. Housley, "Guidelines for Cryptographic Key Management", BCP 107, RFC 4107, DOI 10.17487/RFC4107, June 2005, https://www.rfc-editor.org/info/rfc4107./
[RFC5090] Sterman, B., Sadolevsky, D., Schwartz, D., Williams, D., and W. Beck, "RADIUS Extension for Digest Authentication", RFC 5090, DOI 10.17487/RFC5090, February 2008, https://www.rfc-editor.org/info/rfc5090./
[RFC5389] Rosenberg, J., Mahy, R., Matthews, P., and D. Wing, "Session Traversal Utilities for NAT (STUN)", RFC 5389, DOI 10.17487/RFC5389, October 2008, https://www.rfc-editor.org/info/rfc5389./
[RFC5626] Jennings, C., Ed., Mahy, R., Ed., and F. Audet, Ed., "Managing Client-Initiated Connections in the Session Initiation Protocol (SIP)", RFC 5626, DOI 10.17487/RFC5626, October 2009, https://www.rfc-editor.org/info/rfc5626./
[RFC5766] Mahy, R., Matthews, P., and J. Rosenberg, "Traversal Using Relays around NAT (TURN): Relay Extensions to Session Traversal Utilities for NAT (STUN)", RFC 5766, DOI 10.17487/RFC5766, April 2010, https://www.rfc-editor.org/info/rfc5766./
[RFC5769] Denis-Courmont, R., "Test Vectors for Session Traversal Utilities for NAT (STUN)", RFC 5769, DOI 10.17487/RFC5769, April 2010, https://www.rfc-editor.org/info/rfc5769./
[RFC5780] MacDonald, D. and B. Lowekamp, "NAT Behavior Discovery Using Session Traversal Utilities for NAT (STUN)", RFC 5780, DOI 10.17487/RFC5780, May 2010, https://www.rfc-editor.org/info/rfc5780./
[RFC6544] Rosenberg, J., Keranen, A., Lowekamp, B., and A. Roach, "TCP Candidates with Interactive Connectivity Establishment (ICE)", RFC 6544, DOI 10.17487/RFC6544, March 2012, https://www.rfc-editor.org/info/rfc6544./
[RFC7231] Fielding, R., Ed. and J. Reschke, Ed., "Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content", RFC 7231, DOI 10.17487/RFC7231, June 2014, https://www.rfc-editor.org/info/rfc7231./
[RFC8126] Cotton, M., Leiba, B., and T. Narten, "Guidelines for Writing an IANA Considerations Section in RFCs", BCP 26, RFC 8126, DOI 10.17487/RFC8126, June 2017, https://www.rfc-editor.org/info/rfc8126./
[RFC8264] Saint-Andre, P. and M. Blanchet, "PRECIS Framework: Preparation, Enforcement, and Comparison of Internationalized Strings in Application Protocols", RFC 8264, DOI 10.17487/RFC8264, October 2017, https://www.rfc-editor.org/info/rfc8264./
[RFC8445] Keranen, A., Holmberg, C., and J. Rosenberg, "Interactive Connectivity Establishment (ICE): A Protocol for Network Address Translator (NAT) Traversal", RFC 8445, DOI 10.17487/RFC8445, July 2018, https://www.rfc-editor.org/info/rfc8445./
[RFC8446] Rescorla, E., "The Transport Layer Security (TLS) Protocol Version 1.3", RFC 8446, DOI 10.17487/RFC8446, August 2018, https://www.rfc-editor.org/info/rfc8446./
[STUN-PMTUD] Petit-Huguenin, M., Salgueiro, G., and F. Garrido, "Packetization Layer Path MTU Discovery (PLMTUD) For UDP Transports Using Session Traversal Utilities for NAT (STUN)", Work in Progress, draft-ietf-tram-stun-pmtud-15, December 2019./
[UAX15] Unicode Standard Annex #15, "Unicode Normalization Forms", edited by Mark Davis and Ken Whistler. An integral part of The Unicode Standard, http://unicode.org/reports/tr15/.
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9.
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Qualification of
ISOC/IETF:
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9.1-9.6 Decisions of ITU Council to admit ISOC to participate in the work of the Sector (June 1995 and June 1996).
9.7 The Internet Engineering Steering Group (IESG) is responsible for ongoing maintenance of the RFCs when the need arises. Comments on RFCs and corresponding changes are accommodated through the existing standardization process.
9.8 Each revision of a given RFC has a different RFC number, so no confusion is possible. All RFCs always remain available on-line. An index of RFCs and their status may be found in the IETF archives at http://www.rfc-editor.org/rfc.html.
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10.
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Other (for any supplementary information):
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None
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