Session Traversal Utilities for NAT (STUN) Parameters

Created
2008-08-01
Last Updated
2024-12-20
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Registries Included Below

STUN Methods

Expert(s)
Dan Wing
Reference
[RFC8489][RFC7983]
Available Formats

CSV
Range Registration Procedures
0x000-0x07F IETF Review
0x080-0x0FF Expert Review
Value Name Reference
0x000 Reserved [RFC8489]
0x001 Binding [RFC8489]
0x002 Reserved; was SharedSecret prior to [RFC5389] [RFC8489]
0x003 Allocate [RFC8656]
0x004 Refresh [RFC8656]
0x005 Unassigned
0x006 Send [RFC8656]
0x007 Data [RFC8656]
0x008 CreatePermission [RFC8656]
0x009 ChannelBind [RFC8656]
0x00A Connect [RFC6062]
0x00B ConnectionBind [RFC6062]
0x00C ConnectionAttempt [RFC6062]
0x00D-0x07F Unassigned
0x080 GOOG-PING [Jonas_Oreland]
0x081-0x0FF Unassigned
0x100-0xFFF Reserved (For DTLS-SRTP multiplexing collision avoidance, see [RFC7983]. Cannot be made available for assignment without IETF Review.) [RFC7983]

STUN Attributes

Expert(s)
Dan Wing
Reference
[RFC8489]
Available Formats

CSV
Range Registration Procedures Note
0x0000-0x3FFF IETF Review comprehension-required range
0x4000-0x7FFF Expert Review comprehension-required range
0x8000-0xBFFF IETF Review comprehension-optional range
0xC000-0xFFFF Expert Review comprehension-optional range
Value Name Reference
0x0000 Reserved [RFC8489]
0x0001 MAPPED-ADDRESS [RFC8489]
0x0002 Reserved; was RESPONSE-ADDRESS prior to [RFC5389] [RFC8489]
0x0003 Reserved; was CHANGE-REQUEST prior to [RFC5389] [RFC5780][RFC Errata 4233]
0x0004 Reserved; was SOURCE-ADDRESS prior to [RFC5389] [RFC8489]
0x0005 Reserved; was CHANGED-ADDRESS prior to [RFC5389] [RFC8489]
0x0006 USERNAME [RFC8489]
0x0007 Reserved; was PASSWORD prior to [RFC5389] [RFC8489]
0x0008 MESSAGE-INTEGRITY [RFC8489]
0x0009 ERROR-CODE [RFC8489]
0x000A UNKNOWN-ATTRIBUTES [RFC8489]
0x000B Reserved; was REFLECTED-FROM prior to [RFC5389] [RFC8489]
0x000C CHANNEL-NUMBER [RFC8656]
0x000D LIFETIME [RFC8656]
0x000E-0x000F Reserved
0x0010 Reserved (was BANDWIDTH) [RFC8656]
0x0011 Reserved
0x0012 XOR-PEER-ADDRESS [RFC8656]
0x0013 DATA [RFC8656]
0x0014 REALM [RFC8489]
0x0015 NONCE [RFC8489]
0x0016 XOR-RELAYED-ADDRESS [RFC8656]
0x0017 REQUESTED-ADDRESS-FAMILY [RFC8656]
0x0018 EVEN-PORT [RFC8656]
0x0019 REQUESTED-TRANSPORT [RFC8656]
0x001A DONT-FRAGMENT [RFC8656]
0x001B ACCESS-TOKEN [RFC7635]
0x001C MESSAGE-INTEGRITY-SHA256 [RFC8489]
0x001D PASSWORD-ALGORITHM [RFC8489]
0x001E USERHASH [RFC8489]
0x001F-0x001F Unassigned
0x0020 XOR-MAPPED-ADDRESS [RFC8489]
0x0021 Reserved (was TIMER-VAL) [RFC8656]
0x0022 RESERVATION-TOKEN [RFC8656]
0x0023 Reserved
0x0024 PRIORITY [RFC8445]
0x0025 USE-CANDIDATE [RFC8445]
0x0026 PADDING [RFC5780]
0x0027 RESPONSE-PORT [RFC5780]
0x0028-0x0029 Reserved
0x002A CONNECTION-ID [RFC6062]
0x002B-0x002F Unassigned
0x0030 Reserved
0x0031-0x7FFF Unassigned
0x8000 ADDITIONAL-ADDRESS-FAMILY [RFC8656]
0x8001 ADDRESS-ERROR-CODE [RFC8656]
0x8002 PASSWORD-ALGORITHMS [RFC8489]
0x8003 ALTERNATE-DOMAIN [RFC8489]
0x8004 ICMP [RFC8656]
0x8005-0x8021 Unassigned
0x8022 SOFTWARE [RFC8489]
0x8023 ALTERNATE-SERVER [RFC8489]
0x8024 Reserved
0x8025 TRANSACTION_TRANSMIT_COUNTER [RFC7982]
0x8026 Reserved
0x8027 CACHE-TIMEOUT [RFC5780]
0x8028 FINGERPRINT [RFC8489]
0x8029 ICE-CONTROLLED [RFC8445]
0x802A ICE-CONTROLLING [RFC8445]
0x802B RESPONSE-ORIGIN [RFC5780]
0x802C OTHER-ADDRESS [RFC5780]
0x802D ECN-CHECK STUN [RFC6679]
0x802E THIRD-PARTY-AUTHORIZATION [RFC7635]
0x802F Unassigned
0x8030 MOBILITY-TICKET [RFC8016]
0x8031-0xBFFF Unassigned
0xC000 CISCO-STUN-FLOWDATA [Dan_Wing]
0xC001 ENF-FLOW-DESCRIPTION [Pål_Erik_Martinsen]
0xC002 ENF-NETWORK-STATUS [Pål_Erik_Martinsen]
0xC003 CISCO-WEBEX-FLOW-INFO [Stefano_Giorcelli]
0xC004-0xC055 Unassigned
0xC056 CITRIX-TRANSACTION-ID [Paras_Babbar]
0xC057 GOOG-NETWORK-INFO [Jonas_Oreland]
0xC058 GOOG-LAST-ICE-CHECK-RECEIVED [Jonas_Oreland]
0xC059 GOOG-MISC-INFO [Jonas_Oreland]
0xC05A GOOG-OBSOLETE-1 [Jonas_Oreland]
0xC05B GOOG-CONNECTION-ID [Jonas_Oreland]
0xC05C GOOG-DELTA [Jonas_Oreland]
0xC05D GOOG-DELTA-ACK [Jonas_Oreland]
0xC05E GOOG-DELTA-SYNC-REQ [Jonas_Oreland]
0xC05F Unassigned
0xC060 GOOG-MESSAGE-INTEGRITY-32 [Jonas_Oreland]
0xC061-0xC06F Unassigned
0xC070 META-DTLS-IN-STUN [Philipp_Hancke]
0xC071 META-DTLS-IN-STUN-ACKNOWLEDGEMENT [Philipp_Hancke]
0xC072-0xFFFF Unassigned

STUN Error Codes

Registration Procedure(s)
IETF Review
Reference
[RFC8489]
Available Formats

CSV
Value Name Reference
0-299 Reserved
300 Try Alternate [RFC8489]
301-399 Unassigned
400 Bad Request [RFC8489]
401 Unauthenticated [RFC8489]
402 Unassigned
403 Forbidden [RFC8656]
404 Unassigned
405 Mobility Forbidden [RFC8016]
406-419 Unassigned
420 Unknown Attribute [RFC8489]
421-436 Unassigned
437 Allocation Mismatch [RFC8656]
438 Stale Nonce [RFC8489]
439 Unassigned
440 Address Family not Supported [RFC8656]
441 Wrong Credentials [RFC8656]
442 Unsupported Transport Protocol [RFC8656]
443 Peer Address Family Mismatch [RFC8656]
444-445 Unassigned
446 Connection Already Exists [RFC6062]
447 Connection Timeout or Failure [RFC6062]
448-485 Unassigned
486 Allocation Quota Reached [RFC8656]
487 Role Conflict [RFC8445]
488-499 Unassigned
500 Server Error [RFC8489]
501-507 Unassigned
508 Insufficient Capacity [RFC8656]
509-699 Unassigned

Traversal Using Relays around NAT (TURN) Channel Numbers

Registration Procedure(s)
Standards Action
Reference
[RFC7983][RFC8656]
Note
Values 0x0000 through 0x3FFF are not available for use, since they conflict 
with the STUN header.
Available Formats

CSV
Value Name Reference
0x0000-0x3FFF Reserved [RFC8656]
0x4000-0x4FFF Used by TURN [RFC8656]
0x5000-0xFFFF Reserved (For DTLS-SRTP multiplexing collision avoidance, see [RFC7983]) [RFC7983]

STUN Security Features

Registration Procedure(s)
Standards Action
Reference
[RFC8489]
Available Formats

CSV
Bit Name Reference
0 Password algorithms [RFC8489]
1 Username anonymity [RFC8489]
2-23 Unassigned

STUN Password Algorithms

Expert(s)
Dan Wing
Reference
[RFC8489]
Available Formats

CSV
Range Registration Procedures
0x0000-0x7FFF IETF Review
0x8000-0xFFFF Expert Review
Value Name Reference
0x0000 Reserved [RFC8489]
0x0001 MD5 [RFC8489]
0x0002 SHA-256 [RFC8489]
0x0003-0xFFFF Unassigned

Contact Information

ID Name Contact URI Last Updated
[Dan_Wing] Dan Wing mailto:danwing&gmail.com 2022-10-14
[Jonas_Oreland] Jonas Oreland mailto:jonaso&google.com 2023-03-20
[Pål_Erik_Martinsen] Pål-Erik Martinsen mailto:palmarti&cisco.com 2016-04-20
[Paras_Babbar] Paras Babbar mailto:Paras.Babbar&cloud.com 2023-12-18
[Philipp_Hancke] Philipp Hancke mailto:phancke&meta.com 2024-12-20
[Stefano_Giorcelli] Stefano Giorcelli mailto:stefanog&cisco.com 2023-12-07