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Protocol Registries

A Access Node Control Protocol (ANCP) ANCP Capability Types RFC 6320
ANCP Command Codes RFC 6320
ANCP Message Types RFC 6320
ANCP Port Management Functions RFC 6320
ANCP Result Codes RFC 6320


ANCP Technology Types RFC 6320
ANCP TLV Types RFC 6320


Joint GSMP / ANCP Version Registry RFC 6320
ACL TLS ACL (D)TLS Parameters RFC 9761
ACL DTLS Version Codes RFC 9761
ACL TLS Version Codes RFC 9761
Ad Hoc On Demand Distance Vector (AODV) Parameters AODV Extension Types RFC 3561
AODV Message Types (for messages sent to port 654) RFC 3561
Address Family Numbers Address Family Numbers RFC 2453, RFC 2677, RFC 2858

Address Resolution Protocol (ARP) Parameters Hardware Types RFC 826, RFC 5494




Operation Codes RFC 826, RFC 5494
Protocol Type RFC 826, RFC 5494, RFC 5342
APEX Parameters Applicable Exchange Core (APEX) Endpoint Applications RFC 3340
Applicable Exchange Core (APEX) Options RFC 3340
Applicable Exchange Core (APEX) Services RFC 3340
Application Access Protocol (ACAP) Numbers ACAP Capabilities RFC 2244
ACAP Response Codes RFC 2244
Dataset Classes RFC 2244
Vendor Subtrees RFC 2244, RFC 6075
Application Bridging for Federated Access Beyond Web (ABFAB) Parameters ABFAB URN Parameters RFC 7833
Application-Layer Traffic Optimization (ALTO) Protocol ALTO Address Types RFC 7285
ALTO Cost Metrics RFC 7285
ALTO Cost Modes RFC 9274
ALTO Cost Source Types RFC 9439
ALTO Endpoint Property Types RFC 7285
ALTO Entity Domain Types RFC 9240
ALTO Entity Property Types RFC 9240
ALTO Error Codes RFC 7285
Authenticated Encryption with Associated Data (AEAD) Parameters AEAD Algorithms RFC 5116


Authentication and Authorization for Constrained Environments (ACE) ACE Authorization Server Request Creation Hints RFC 9200





ACE Groupcomm Errors RFC 9594





ACE Groupcomm Key Types RFC 9594








ACE Groupcomm Parameters RFC 9594








ACE Groupcomm Policies RFC 9594








ACE Groupcomm Profiles RFC 9594





ACE Groupcomm Rekeying Schemes RFC 9594





ACE Profiles RFC 9200





ACE Token Revocation List Errors RFC 9770





ACE Token Revocation List Parameters RFC 9770





OAuth Access Token Type CBOR Mappings RFC 9200


OAuth Error Code CBOR Mappings RFC 9200


OAuth Grant Type CBOR Mappings RFC 9200


OAuth Parameters CBOR Mappings RFC 9200


OAuth Token Introspection Response CBOR Mappings RFC 9200


OSCORE Security Context Parameters RFC 9203








Sequence Number Synchronization Methods RFC 9594








Authentication and Key Agreement (AKA) AKA-Version Namespace RFC 3310
Authentication Method Reference Values Authentication Method Reference Values RFC 8176
Authentication Option Name Spaces Algorithm Name Space Values RFC 3118
Protocol Name Space Values RFC 3118
RDM Name Space Values RFC 3118
Authentication, Authorization, and Accounting (AAA) Parameters Application IDs RFC 6733, RFC 6942


AVP Codes RFC 6733


AVP Flags Value RFC 6733
AVP Specific Values RFC 6733
Command Codes RFC 6733, RFC 5719


Command Flags RFC 6733
Mobility Capability Registry RFC 5447
QoS Profiles RFC 5624



Author Domain Signing Practices (ADSP) Parameters ADSP Outbound Signing Practices RFC 5617
ADSP Specification Tags RFC 5617
Automated Certificate Management Environment (ACME) Protocol ACME Account Object Fields RFC 8555
ACME Authority Token Challenge Types RFC 9447
ACME Authorization Object Fields RFC 8555
ACME Directory Metadata Auto-Renewal Fields RFC 8739
ACME Directory Metadata Fields RFC 8555
ACME Error Types RFC 8555
ACME Identifier Types RFC 8555
ACME Order Auto-Renewal Fields RFC 8739
ACME Order Object Fields RFC 8555
ACME RenewalInfo Object Fields RFC 9773
ACME Resource Types RFC 8555
ACME Validation Methods RFC 8555
STAR Delegation CSR Template Extensions RFC 9115
Automatic Responses to Electronic Mail Parameters Auto-Submitted Header Field Keywords RFC 5436
Auto-Submitted header field optional parameters RFC 3834
Autonomic Control Plane (ACP) ACP Address Type RFC 8994
Autonomous System (AS) Numbers 16-bit Autonomous System Numbers RFC 1930, RFC 5398, RFC 6996, RFC 7249
32-bit Autonomous System Numbers RFC 1930, RFC 5398, RFC 6793, RFC 6996, RFC 7249
Special-Purpose AS Numbers RFC 7249
B Babel Routing Protocol Babel Address Encodings RFC 8966


Babel Hello Flags Values RFC 8966
Babel Sub-TLV Types RFC 8966




Babel TLV Types RFC 8966


Babel Update Flags Values RFC 8966
Battery Technologies Battery Technologies RFC 7577
BGP Monitoring Protocol (BMP) Parameters BMP Initiation Information TLVs RFC 7854, RFC 9069, RFC 9515, RFC 9736


BMP Message Types RFC 7854



BMP Peer Down Reason Codes RFC 7854



BMP Peer Flags for Loc-RIB Instance Peer Type 3 RFC 9069
BMP Peer Flags for Peer Types 0 through 2 RFC 7854, RFC 9069
BMP Peer Types RFC 7854



BMP Peer Up Message TLVs RFC 9736


BMP Route Mirroring Information Codes RFC 7854, RFC 9515


BMP Route Mirroring TLVs RFC 7854, RFC 9515


BMP Statistics Types RFC 7854, RFC 9515


BMP Termination Message Reason Codes RFC 7854, RFC 9515


BMP Termination Message TLVs RFC 7854, RFC 9515


BGP Shortest Path First (BGP SPF) BGP-LS-SPF Link NLRI Attribute SPF Status TLV Status Internet Draft draft-ietf-lsvr-bgp-spf-51
BGP-LS-SPF Node NLRI Attribute SPF Status TLV Status Internet Draft draft-ietf-lsvr-bgp-spf-51
BGP-LS-SPF Prefix NLRI Attribute SPF Status TLV Status Internet Draft draft-ietf-lsvr-bgp-spf-51
Bidirectional Forwarding Detection (BFD) Parameters BFD Authentication Types RFC 5880
BFD Diagnostic Codes RFC 5880
Bit Index Explicit Replication (BIER) BIER Algorithm RFC 8401, RFC 9272



BIER Next Protocol Identifiers RFC 8296
Blocks Extensible Exchange Protocol (BEEP) Parameters BEEP Features RFC 3080
BEEP Profiles RFC 3080
Bootstrapping Remote Secure Key Infrastructures (BRSKI) Parameters BRSKI Well-Known URIs RFC 8995
Pledge BRSKI Status Telemetry Attributes RFC 8995
Border Gateway Protocol (BGP) Parameters Additional PMSI Tunnel Attribute Flags RFC 7902
ARP/ND Extended Community Flags RFC 9047
BFD Discriminator Optional TLV Type RFC 9026



BFD Mode RFC 9026



BGP AIGP Attribute Types RFC 7311
BGP BIER TLV and Sub-TLV Types RFC 9793
BGP CAR NLRI TLV Types Internet Draft draft-ietf-idr-bgp-car-16
BGP CAR NLRI Types Internet Draft draft-ietf-idr-bgp-car-16
BGP Data Collection Standard Communities RFC 4384
BGP Error (Notification) Codes RFC 4271, RFC 7313
BGP Error Subcodes RFC 4271
BGP Graceful Restart Flags RFC 4724, RFC 8538
BGP Graceful Restart Flags for Address Family RFC 4724, RFC 8538
BGP Layer 2 Encapsulation Types RFC 6624


BGP Layer 2 TLV Types RFC 6624


BGP MCAST-VPN Route Types RFC 7441, RFC 6514
BGP Message Types RFC 4271
BGP Non-Transitive Extended Community Types RFC 7153


BGP OPEN Optional Parameter Types RFC 5492
BGP Outbound Route Filtering (ORF) Types RFC 5291


BGP Path Attributes RFC 4271
BGP Prefix-SID Label-Index TLV Flags RFC 8669
BGP Prefix-SID Originator SRGB TLV Flags RFC 8669
BGP Prefix-SID TLV Types RFC 8669
BGP Role Value RFC 9234
BGP Route Refresh Subcodes RFC 7313

BGP SRv6 Service SID Flags RFC 9252
BGP Transitive Extended Community Types RFC 7153, RFC 9184



BGP Well-known Communities RFC 1997, RFC 8642



Capability Codes RFC 5492, RFC 8810


Context-Specific Label Space ID Type RFC 9573
DF Alg RFC 8584
DF Election Capabilities RFC 8584
E-Tree Flags RFC 8317
EVPN ESI Label Extended Community Flags RFC 9746
EVPN Extended Community Sub-Types RFC 7153

EVPN Layer 2 Attributes Control Flags RFC 8214
Generic Transitive Extended Community Part 2 Sub-Types RFC 8955, RFC 9184

Generic Transitive Extended Community Part 3 Sub-Types RFC 8955, RFC 9184

Generic Transitive Extended Community Sub-Types RFC 7153, RFC 9184

Layer2 Info Extended Community Control Flags Bit Vector RFC 8395
Long-Lived Graceful Restart Flags for Address Family RFC 9494
Multicast Flags Extended Community RFC 9251
Multihoming Redundancy Mode RFC 9746
Non-Transitive Four-Octet AS-Specific Extended Community Sub-Types RFC 7153

Non-Transitive IPv4-Address-Specific Extended Community Sub-Types RFC 7153

Non-Transitive IPv6-Address-Specific Extended Community Types RFC 7153
Non-Transitive Opaque Extended Community Sub-Types RFC 7153

Non-Transitive Transport Class Extended Community Sub-Types Internet Draft draft-ietf-idr-bgp-ct-39

Non-Transitive Two-Octet AS-Specific Extended Community Sub-Types RFC 7153

P-Multicast Service Interface (PMSI) Tunnel Attribute Flags RFC 7902
P-Multicast Service Interface Tunnel (PMSI Tunnel) Tunnel Types RFC 7385, RFC 8317




Region Identifiers (<R>) RFC 4384
SFC Extended Community Sub-Types RFC 9015
SFC SPI/SI Representation Flags RFC 9015
SFP Association Type RFC 9015
SFP Attribute TLVs RFC 9015
Split-Horizon Type RFC 9746
SRv6 Service Data Sub-Sub-TLV Types RFC 9252


SRv6 Service Sub-TLV Types RFC 9252


Traffic Action Fields RFC 8955
Transitive Four-Octet AS-Specific Extended Community Sub-Types RFC 7153

Transitive IPv4-Address-Specific Extended Community Sub-Types RFC 7153

Transitive IPv6-Address-Specific Extended Community Types RFC 7153
Transitive Opaque Extended Community Sub-Types RFC 7153

Transitive Transport Class Extended Community Sub-Types Internet Draft draft-ietf-idr-bgp-ct-39

Transitive Two-Octet AS-Specific Extended Community Sub-Types RFC 7153

Border Gateway Protocol (BGP) Tunnel Encapsulation BGP Tunnel Encapsulation Attribute Sub-TLVs RFC 9012





BGP Tunnel Encapsulation Attribute Tunnel Types RFC 9012
Color Extended Community Color-Only Types Internet Draft draft-ietf-idr-sr-policy-safi-13
Color Extended Community Flags RFC 9012
Embedded Label Handling Sub-TLVs RFC 9012
Flags Field of NVGRE Encapsulation Sub-TLVs RFC 9012
Flags Field of VXLAN Encapsulation Sub-TLVs RFC 9012
SR Policy Binding SID Flags Internet Draft draft-ietf-idr-sr-policy-safi-13
SR Policy Segment Flags Internet Draft draft-ietf-idr-sr-policy-safi-13
SR Policy Segment List Sub-TLVs Internet Draft draft-ietf-idr-sr-policy-safi-13
SR Policy SRv6 Binding SID Flags Internet Draft draft-ietf-idr-sr-policy-safi-13
Border Gateway Protocol - Link State (BGP-LS) Parameters BGP-LS IGP Prefix Flags RFC 9552
BGP-LS MPLS Protocol Mask RFC 9552
BGP-LS NLRI and Attribute TLVs RFC 9552



BGP-LS NLRI Types RFC 9552


BGP-LS Node Flags RFC 9552
BGP-LS Protocol-IDs RFC 9552


BGP-LS SR Policy Metric Types Internet Draft draft-ietf-idr-bgp-ls-sr-policy-17
BGP-LS SR Segment Descriptor Types Internet Draft draft-ietf-idr-bgp-ls-sr-policy-17
BGP-LS Well-Known Instance-IDs (OBSOLETE) RFC 9552
SRv6 BGP EPE SID Flags RFC 9514
BPF Instructions BPF Instruction Conformance Groups RFC 9669



BPF Instruction Set RFC 9669



Building Blocks Building Blocks RFC 3048
Bundle Protocol Block Processing Control Flags RFC 6255, RFC 9171
BPSec BCB-AES-GCM AAD Scope Flags RFC 9173
BPSec BIB-HMAC-SHA2 Integrity Scope Flags RFC 9173
BPSec Security Context Identifiers RFC 9172
Bundle Administrative Record Types RFC 7116, RFC 9713
Bundle Block Types RFC 6255, RFC 9171
Bundle Custody Signal Reason Codes RFC 6255
Bundle Metadata Type Codes RFC 6258
Bundle Processing Control Flags RFC 6255, RFC 9171
Bundle Protocol TCP Convergence-Layer Message Types RFC 7242
Bundle Protocol TCP Convergence-Layer REFUSE_BUNDLE Reason Codes RFC 7242
Bundle Protocol TCP Convergence-Layer SHUTDOWN Reason Codes RFC 7242
Bundle Protocol TCP Convergence-Layer Version 4 Message Types RFC 9174
Bundle Protocol TCP Convergence-Layer Version 4 MSG_REJECT Reason Codes RFC 9174
Bundle Protocol TCP Convergence-Layer Version 4 SESS_TERM Reason Codes RFC 9174
Bundle Protocol TCP Convergence-Layer Version 4 Session Extension Types RFC 9174
Bundle Protocol TCP Convergence-Layer Version 4 Transfer Extension Types RFC 9174
Bundle Protocol TCP Convergence-Layer Version 4 XFER_REFUSE Reason Codes RFC 9174
Bundle Protocol TCP Convergence-Layer Version Numbers RFC 7242
Bundle Protocol URI Scheme Types RFC 9171
Bundle Status Report Flags RFC 6255
Bundle Status Report Reason Codes RFC 6255, RFC 9171
CBHE Service Numbers RFC 7116


Ciphersuite Flags RFC 6257
Ciphersuite Numbers RFC 6257
Ciphersuite Parameters and Results Type Registry RFC 6257
Primary Bundle Protocol Version RFC 6255
C C-DNS DNS Capture Format C-DNS Address Event Types RFC 8618
C-DNS Response Flags RFC 8618
C-DNS Storage Flags RFC 8618
C-DNS Transports RFC 8618
Caller-ID Numbering Plans Caller-ID Numbering Plans Tokens RFC 3939
Candidate Access Router Discovery (CARD) Parameters AVP Type Registry RFC 4065
Experimental Mobility Protocol Subtype Registry RFC 4065
Layer 2 Access Technology Identifier Registry RFC 4065
Captive Portals Captive Portal API Keys RFC 8908
CBOR Object Signing and Encryption (COSE) COSE Algorithms RFC 9053, RFC 9054, Internet Draft draft-ietf-jose-fully-specified-algorithms-13








COSE Elliptic Curves RFC 9053





COSE Header Algorithm Parameters RFC 9053
COSE Header Parameters RFC 9052








COSE Key Common Parameters RFC 9052








COSE Key Type Parameters RFC 9053
COSE Key Types RFC 9053
CBOR Web Token (CWT) Claims CBOR Web Token (CWT) Claims RFC 8392







CWT Confirmation Methods RFC 8747
Centralized Conferencing Manipulation Protocol (CCMP) Parameters CCMP Message Types RFC 6503
CCMP Response Codes RFC 6503
CERT RR Certificate Types CERT RR Certificate Types RFC 4398


Certificate Management Protocol (CMP) CMP Well-Known URI Path Segments Internet Draft draft-ietf-lamps-rfc6712bis-10
Channel-Binding Types Channel-Binding Types RFC 5056
Character Sets Character Set Registrations RFC 2978
Character Sets RFC 2978
Character Sets Mailing List Information RFC 2978
Cisco Service Level Assurance Protocol Cisco SLA Protocol Address Family Registry RFC 6812
Cisco SLA Protocol Authenticator Modes Registry RFC 6812
Cisco SLA Protocol CSLD Command Registry RFC 6812
Cisco SLA Protocol Measurement-Type Registry RFC 6812
Cisco SLA Protocol Roles Registry RFC 6812
Cisco SLA Protocol Status Types Registry RFC 6812
Cisco SLA Protocol Version Number Registry RFC 6812
CoAP-EAP Protocol CoAP-EAP Cipher Suites Internet Draft draft-ietf-ace-wg-coap-eap-14




CoAP-EAP Information Elements Internet Draft draft-ietf-ace-wg-coap-eap-14




Common Architecture Label IPv6 Security Option (CALIPSO) CALIPSO Domain of Interpretation (DOI) RFC 5570


Common Name Resolution Protocol (CNRP) Parameters Properties RFC 3367
Property Types RFC 3367
Status Messages RFC 3367
Common Open Policy Service (COPS) Protocol A-types RFC 3182

ADMISSION_PRI (P-Type 0x05) Error Codes RFC 6401

C-Num and C-Type Values RFC 2748
Client Types Values RFC 2748 Client-type = 0 Flags and Error-SubCodes RFC 4261
COPS-PR Object S-Num, S-Types, and Error-Codes RFC 3084
M-Types, Reason Sub-Codes, and Error Sub-codes RFC 2748
Merge Strategies RFC 6401

P-types RFC 2750


R-Types, Reason-Codes, Report-Types, Decision Object Command-Codes/Flags, and Error-Codes RFC 2748
Receiver Proxy Control Policy Element (P-Type 0x07) Control-Value field RFC 5946

Common Presence and Instant Messaging (CPIM) Headers CPIM Headers RFC 3862
Concise Binary Object Representation (CBOR) CBOR Simple Values RFC 8949


CBOR Tags RFC 8949



Time Tag Map Keys RFC 9581
Timescales RFC 9581
Concise Data Definition Language (CDDL) CDDL Control Operators RFC 8610


Concise Software Identifier (CoSWID) CoSWID Items RFC 9393


Connectivity Fault Management (CFM) OAM IETF Parameters CFM OAM IETF OpCodes RFC 7319
CFM OAM IETF TLV Types RFC 7319
Constrained RESTful Environments (CoRE) Parameters CoAP Codes RFC 7252
CoAP Content-Formats RFC 7252, Internet Draft draft-ietf-core-cf-reg-update-09







CoAP Option Numbers RFC 7252




CoAP Signaling Codes RFC 8323
CoAP Signaling Option Numbers RFC 8323




Custom Problem Detail Keys RFC 9290
Endpoint Type (et=) RD Parameter Values RFC 9176


Interface Description (if=) Link Target Attribute Values RFC 6690


OSCORE Flag Bits RFC 8613
RD Parameters RFC 9176
Resource Type (rt=) Link Target Attribute Values RFC 6690


Standard Problem Detail Keys RFC 9290
Target Attributes RFC 9423
Content Delivery Network Interconnection (CDNI) Parameters CDNI Capabilities Redirection Modes RFC 8008
CDNI Capacity Limit Types Internet Draft draft-ietf-cdni-capacity-insights-extensions-12
CDNI CI/T Error Codes RFC 8007
CDNI CI/T Trigger Types RFC 8007
CDNI Logging Directive Names RFC 7937
CDNI Logging Field Names RFC 7937
CDNI Logging File version RFC 7937
CDNI Logging record-types RFC 7937
CDNI Metadata Footprint Types RFC 8006
CDNI Metadata Protocol Types RFC 8006
CDNI Payload Types RFC 7736
CDNI RI Error response code RFC 7975
CDNI Telemetry Source Types Internet Draft draft-ietf-cdni-capacity-insights-extensions-12
CDNI URI Signing Signed Token Transport RFC 9246
CDNI URI Signing Verification Codes RFC 9246
Content Disposition Values and Parameters Content Disposition Parameters RFC 2183
Content Disposition Values RFC 2183
Handling Parameter Values RFC 3204
Voice Parameter Values RFC 2421
Content Security Policy Directives Content Security Policy Directives RFC 7762
Content-Centric Networking (CCNx) CCNx Echo Reply Codes RFC 9508
CCNx Hash Function Types RFC 8609
CCNx Hop-by-Hop Types RFC 8609
CCNx Interest Return Code Types RFC 8609
CCNx Message Types RFC 8609
CCNx Name Segment Types RFC 8609
CCNx Packet Types RFC 8609
CCNx Payload Types RFC 8609
CCNx Reply Types RFC 9344
CCNx Top-Level Types RFC 8609
CCNx Validation Algorithm Types RFC 8609
CCNx Validation-Dependent Data Types RFC 8609
Context labels for Internet Messages Internet Message Content Types RFC 3458
Context Transfer Protocol (CXTP) Parameters Context Transfer Profile Type Registry RFC 4065
Context Transfer Protocol Authorization Token Calculation Algorithms RFC 4065
Control And Provisioning of Wireless Access Points (CAPWAP) Parameters AC DTLS Policy RFC 5415
AC Information Type RFC 5415
AC Security Types RFC 5415
Alternate Tunnel Sub-elements RFC 8350
Alternate Tunnel-Types RFC 8350
CAPWAP Control Message Flags RFC 5415
CAPWAP Header Flags RFC 5415
CAPWAP IEEE 802.11 Message Types RFC 5416
CAPWAP Message Element Type RFC 5415
CAPWAP Message Types RFC 5415
CAPWAP Transport Protocol Types RFC 5415
CAPWAP Wireless Binding Identifier RFC 5415
Data Transfer Mode RFC 5415
Data Transfer Type RFC 5415
Discovery Types RFC 5415
ECN Support RFC 5415
IEEE 802.11 Antenna Combiner RFC 5416
IEEE 802.11 Antenna Selection RFC 5416
IEEE 802.11 Auth Type RFC 5416
IEEE 802.11 Encryption Capabilities RFC 5416
IEEE 802.11 Key Status RFC 5416
IEEE 802.11 QoS RFC 5416
IEEE 802.11 Session Key Flags RFC 5416
IEEE 802.11 Split MAC Profile RFC 7494
IEEE 802.11 Tagging Policy RFC 5416
IEEE 802.11 WTP Radio Fail RFC 5416
IEEE 802.11 WTP Radio Type RFC 5416
Radio Admin State RFC 5415
Radio Failure Causes RFC 5415
Radio Operational State RFC 5415
Result Code RFC 5415
Returned Message Element Reason RFC 5415
WTP Board Data Type RFC 5415
WTP Descriptor Type RFC 5415
WTP Fallback Mode RFC 5415
WTP Frame Tunnel Mode RFC 5415
WTP MAC Type RFC 5415
WTP Radio Stats Failure Type RFC 5415
WTP Reboot Stats Failure Type RFC 5415
ControLling mUltiple streams for tElepresence (CLUE) CLUE Message Types RFC 8847
CLUE Response Codes RFC 8847
CLUE Schema <personType> RFC 8846
CLUE Schema <presentation> RFC 8846
CLUE Schema <sensitivityPattern> RFC 8846
CLUE Schema <view> RFC 8846
Cryptographic Suites for IKEv1, IKEv2, and IPsec Cryptographic Suites for IKEv1, IKEv2, and IPsec RFC 4308
Cryptographically Generated Addresses (CGA) Message Type Name Space CGA Extension Type Tags RFC 3972, RFC 9374
CGA Extension Type Values RFC 4581
CGA SEC RFC 4982
D Data Channel Establishment Protocol (DCEP) Parameters Channel Types RFC 8832
Message Types RFC 8832
Data Link Switching Client Access Protocol (DCAP) Parameters Data Link Switching Protocol Frame Codes RFC 2114
Data Link Switching Protocol Sender Capability Codes RFC 2114
Data Structure for the Security Suitability of Cryptographic Algorithms (DSSC) Cryptographic Algorithms RFC 5698
Parameter Definitions RFC 5698
Datagram Congestion Control Protocol (DCCP) Parameters Ack Vector States RFC 4340
CCID2-specific Feature Numbers (128-255) RFC 4341
CCID2-specific Option Types (128-255) RFC 4341
CCID2-specific Reset codes (128-255) RFC 4341
CCID3-specific Feature Numbers (128-255) RFC 4342
CCID3-specific Option Types (128-255) RFC 4342
CCID3-specific Reset codes (128-255) RFC 4342
CCID4-specific Feature Numbers (128-255) RFC 5622
CCID4-specific Option Types (128-255) RFC 5622
CCID4-specific Reset codes (128-255) RFC 5622
Congestion Control Identifiers RFC 4340



Drop Codes RFC 4340
Feature Numbers RFC 4340



MP-DCCP Versions Internet Draft draft-ietf-tsvwg-multipath-dccp-24
Multipath Key Type Internet Draft draft-ietf-tsvwg-multipath-dccp-24
Multipath Options Internet Draft draft-ietf-tsvwg-multipath-dccp-24
Option Types RFC 4340




Packet Types RFC 4340
Reset Codes RFC 4340



Service Codes RFC 4340
Datagram Transport Layer Security (DTLS) Extension to Establish Keys for Secure Real-time Transport Protocol (SRTP) DTLS-SRTP Protection Profiles RFC 5764
Delivery Status Notification (DSN) Types Address Types RFC 3461, RFC 3464
Diagnostic Types RFC 3461, RFC 3464
MTA Name Types RFC 3461, RFC 3464
DetNet Associated Channel Header (d-ACH) Flags DetNet Associated Channel Header (d-ACH) Flags RFC 9546
Device Identification DEV URN Subtypes RFC 9039
Differentiated Services Field Codepoints (DSCP) Differentiated Services Field Codepoints (DSCP) RFC 2474, RFC 3260 ECN Field (Bits 6-7) RFC 3168
Directory System Names Distinguished Names RFC 1779
Distributed Denial-of-Service Open Threat Signaling (DOTS) Signal Channel DOTS Signal Channel Attack Status Codes RFC 9132
DOTS Signal Channel CBOR Key Values RFC 9132






DOTS Signal Channel Conflict Cause Codes RFC 9132
DOTS Signal Channel Conflict Status Codes RFC 9132
DOTS Signal Channel Status Codes RFC 9132
Distributed Node Consensus Protocol (DNCP) DNCP TLV Types RFC 7787
HNCP TLV Types RFC 7788
DNS-Based Authentication of Named Entities (DANE) Parameters TLSA Certificate Usages RFC 6698, RFC 7218
TLSA Matching Types RFC 6698, RFC 7218
TLSA Selectors RFC 6698, RFC 7218
Domain Name System (DNS) Parameters AFSDB RR Subtype RFC 6895, RFC 1035
AMTRELAY Relay Type Field RFC 8777
Child Synchronization (CSYNC) Flags RFC 7477
DHCID RR Digest Type Codes RFC 4701
DHCID RR Identifier Type Codes RFC 4701
DNS Catalog Zones Properties RFC 9432


DNS CLASSes RFC 6895, RFC 9108








DNS EDNS0 Option Codes (OPT) RFC 6891


DNS Header Flags RFC 6895, RFC 1035
DNS KEY RR Protocol Octet Values RFC 4034, RFC 2535
DNS Label Types RFC 6891
DNS OpCodes RFC 6895, RFC 1035
DNS RCODEs RFC 6895, RFC 1035



DNS Resolver Information Keys RFC 9606
DNS Server Cookie Methods RFC 9018, RFC 7873


DNS SVCB Service Parameter Keys (SvcParamKeys) RFC 9460


DNS-over-QUIC Error Codes RFC 9250




DNSKEY RR Flags RFC 3755, RFC 4034
DSO Type Codes RFC 8490




DSYNC: Location of Synchronization Endpoints Internet Draft draft-ietf-dnsop-generalized-notify-09
EDNS Header Flags (16 bits) RFC 6891
EDNS version Number (8 bits) RFC 6891
Extended DNS Error Codes RFC 8914

Resource Record (RR) TYPEs RFC 6895, RFC 1035, RFC 9108







SSHFP RR types for fingerprint types RFC 4255
SSHFP RR Types for public key algorithms RFC 4255
Underscored and Globally Scoped DNS Node Names RFC 8552
ZONEMD Hash Algorithms RFC 8976


ZONEMD Schemes RFC 8976


ZONEVERSION TYPE Values RFC 9660



Domain Name System Security (DNSSEC) Algorithm Numbers Digest Algorithms RFC 3658, RFC 4034, RFC 4035, RFC 9157, Internet Draft draft-ietf-dnsop-rfc8624-bis-13
DNS KEY Record Diffie-Hellman Prime Lengths RFC 2539
DNS KEY Record Diffie-Hellman Well-Known Prime/Generator Pairs RFC 2539

DNS Security Algorithm Numbers RFC 4034, RFC 3755, RFC 6014, RFC 6944, Internet Draft draft-ietf-dnsop-rfc8624-bis-13
Domain Name System Security (DNSSEC) NextSECure3 (NSEC3) Parameters DNSSEC NSEC3 Flags RFC 5155, RFC 9157
DNSSEC NSEC3 Hash Algorithms RFC 5155, RFC 9157
DNSSEC NSEC3PARAM Flags RFC 5155, RFC 9157
Domain-based Message Authentication, Reporting, and Conformance (DMARC) DMARC Report Formats Internet Draft draft-ietf-dmarc-dmarcbis-41
DMARC Tags Internet Draft draft-ietf-dmarc-dmarcbis-41
DomainKeys Identified Mail (DKIM) Parameters _domainkey DNS TXT Record Tag Specifications RFC 6376
Authorized Third-Party Signature (ATPS) Tag Registry RFC 6541
DKIM Hash Algorithms RFC 6376
DKIM Key Type RFC 6376
DKIM Reporting Tag Registry RFC 6651
DKIM Selector Flags RFC 6376
DKIM Service Types RFC 6376
DKIM Signature Tag Specifications RFC 6376
DKIM-Signature Canonicalization Body RFC 6376
DKIM-Signature Canonicalization Header RFC 6376
DKIM-Signature Query Method RFC 6376
Drone Remote ID Protocol DRIP Frame Types RFC 9575



DRIP SAM Types RFC 9575
Hierarchical a HIT (HHIT) Suite IDs RFC 9374
Hierarchical HIT (HHIT) Prefixes RFC 9374
Dynamic Host Configuration Protocol (DHCP) and Bootstrap Protocol (BOOTP) Parameters Altitude Type Registry RFC 6225
Authentication Suboption (value 8) - Algorithm identifier values RFC 4030
Authentication Suboption (value 8) - Protocol identifier values RFC 3118
Authentication Suboption (value 8) - Replay Detection Method (RDM) identifier values RFC 4030
BOOTP Vendor Extensions and DHCP Options RFC 2939
CableLabs Client Configuration Option Ticket Control Mask Bit Definitions RFC 3594
Datum Registry RFC 6225
DHCP Cablelabs Client Configuration Option Type 122 Sub-Option Codes RFC 3495
DHCP Message Type 53 Values RFC 2939
DHCP Options Permitted in the RADIUS DHCPv4-Options Attribute RFC 9445
DHCP Relay Agent Sub-Option Codes RFC 3046
DHCP State Type 156 Values RFC 6926
DHCP Status Code Type 151 Values RFC 6926
GeoLoc Option Version Registry RFC 6225
IEEE 802.21 Service Type (MoS DHCPv4 Address and FQDN Sub-Options) RFC 5678
NetWare/IP Option Type 63 Sub-Option Codes RFC 2242
NTP Time Source Suboptions RFC 5908
RADIUS Attributes Permitted in RADIUS Attributes DHCP Suboption RFC 9445
VSS Type Options RFC 6607
Dynamic Host Configuration Protocol for IPv6 (DHCPv6) DHCPv6 Options Permitted in the RADIUS DHCPv6-Options Attribute RFC 9445, Internet Draft draft-ietf-dhc-rfc8415bis-12
DUIDs Internet Draft draft-ietf-dhc-rfc8415bis-12
IEEE 802.21 Service Type (MoS DHCPv6 Address and FQDN Sub-Options) RFC 5678, Internet Draft draft-ietf-dhc-rfc8415bis-12
Message Types Internet Draft draft-ietf-dhc-rfc8415bis-12
NTP Time Source Suboptions RFC 5908, Internet Draft draft-ietf-dhc-rfc8415bis-12
Option Codes Internet Draft draft-ietf-dhc-rfc8415bis-12
Option Codes Permitted in the S46 Priority Option RFC 8026, Internet Draft draft-ietf-dhc-rfc8415bis-12
OPTION_LQ_QUERY option RFC 5007, Internet Draft draft-ietf-dhc-rfc8415bis-12
Options Permitted in the Relay-Supplied Options Option RFC 6422, Internet Draft draft-ietf-dhc-rfc8415bis-12
Processor Architecture Types RFC 5970, Internet Draft draft-ietf-dhc-rfc8415bis-12
RADIUS Attributes Permitted in DHCPv6 RADIUS Option RFC 7037, Internet Draft draft-ietf-dhc-rfc8415bis-12
Status Codes Internet Draft draft-ietf-dhc-rfc8415bis-12
Supported Transport RFC 9527, Internet Draft draft-ietf-dhc-rfc8415bis-12
VSS Type Options RFC 6607
Dynamic Link Exchange Protocol (DLEP) Parameters Data Item Type Values RFC 8175


Extension Type Values RFC 8175


Hop Control Actions Values RFC 8629


IPv4 Address Flags RFC 8175
IPv4 Attached Subnet Flags RFC 8175
IPv4 Connection Point Flags RFC 8175
IPv6 Address Flags RFC 8175
IPv6 Attached Subnet Flags RFC 8175
IPv6 Connection Point Flags RFC 8175
Message Type Values RFC 8175


Peer Type Flags RFC 8175
Queue Parameter Sub-Data Item Type Values RFC 8651


Signal Type Values RFC 8175


Status Code Values RFC 8175




Traffic Classification Sub-Data Item Type Values Internet Draft draft-ietf-manet-dlep-traffic-classification-17


Dynamic Source Routing (DSR) Protocol Parameters Dynamic Source Routing (DSR) Protocol Options RFC 4728
Dynamic Source Routing (DSR) Protocol Route Error Types RFC 4728
Dynamic Symmetric Key Provisioning Protocol (DSKPP) DSKPP Version Registry RFC 6063
Key Container Registry RFC 6063
PRF Algorithm ID Registry RFC 6063
Status Codes RFC 6063
E EAP-pwd Parameters Password Preprocessing Methods RFC 5931
PRF Registry RFC 5931
PWD-Exch Messages RFC 5931
Random Function Registry RFC 5931
Electronic Commerce Modeling Language (ECML) Parameters URN Prefix: urn:ietf:params:ecml RFC 4112
Electronic Commerce Modeling Language Version 2 (ECMLv2) Parameters Ecom_Payment_Card_Protocol Registry RFC 4112
Ecom_Payment_Card_Type Registry RFC 4112
Ecom_Transaction_Type Registry RFC 4112
Email Authentication Parameters Email Authentication Methods RFC 8601, Internet Draft draft-ietf-dmarc-dmarcbis-41
Email Authentication Property Types RFC 8601
Email Authentication Result Names RFC 8601, Internet Draft draft-ietf-dmarc-dmarcbis-41
Emergency Call Additional Data Device Classification RFC 7852
Device ID Type RFC 7852
Device/Service Data Type RFC 7852
Emergency Call Data Types RFC 7852
Provider ID Series RFC 7852
Service Environment RFC 7852
Service Mobility RFC 7852
Service Type RFC 7852
Type of Provider RFC 7852
Emergency Call Metadata/Control Data Emergency Call Action Failure Reasons RFC 8147
Emergency Call Actions RFC 8147
Emergency Call Static Messages RFC 8148
Emergency Call Vehicle Camera IDs RFC 8148
Emergency Call Vehicle Lamp IDs RFC 8148
Enumservice Registrations Enumservice Registrations RFC 6117
Ephemeral Diffie-Hellman Over COSE (EDHOC) EDHOC Authentication Credential Types RFC 9668





EDHOC Cipher Suites RFC 9528




EDHOC Error Codes RFC 9528



EDHOC Exporter Labels RFC 9528



EDHOC External Authorization Data RFC 9528


EDHOC Method Types RFC 9528



ESP AGGFRAG_PAYLOAD AGGFRAG_PAYLOAD Sub-Types RFC 9347
Ethernet VPN (EVPN) EVPN Route Types RFC 7432
Extended Master Session Key (EMSK) Parameters EMSK PRF Numbers RFC 5295

User Specific Root Keys (USRK) Key Labels RFC 5295
Extensible Authentication Protocol (EAP) ADE Type Namespace RFC 4746
Attribute Types (Non-Skippable Attributes 0-127) RFC 4187
Attribute Types (Skippable Attributes 128-255) RFC 4187
DH Group ID Namespace RFC 4746
EAP Finish/Re-auth Flags RFC 6630
EAP Initiate and Finish Attributes RFC 6696
EAP Initiate/Re-auth Flags RFC 6630
EAP Initiate/Re-auth-Start Flags RFC 6630
EAP Lower Layers RFC 6677
EAP-AKA' AT_KDF Key Derivation Function Values RFC 9048
EAP-AKA' AT_KDF_FS Key Derivation Function Values RFC 9678
EAP-FAST (value 43) Error-TLV (value 5) Error-Codes EAP-FAST (value 43) Error-TLV (value 5) Error-Codes RFC 4851
EAP-FAST (value 43) Request-Action TLV (value 19) Action Codes EAP-FAST (value 43) Request-Action TLV (value 19) Action Codes RFC 4851
EAP-FAST GTC Error Codes RFC 5421
EAP-FAST PAC Attribute Types RFC 5422
EAP-FAST PAC Types RFC 5422
EAP-FAST Server-Trusted-Root Credential Format Types RFC 5422
EAP-FAST TLV Types (Value 43) EAP-FAST TLV Types (Value 43) RFC 4851
EAP-GPSK Ciphersuites RFC 5433
EAP-GPSK Failure Codes RFC 5433
EAP-GPSK OP Codes RFC 5433
EAP-GPSK Protected Data Payloads RFC 5433
EAP-IKEv2 Payloads RFC 5106
EAP-NOOB Cryptosuites EAP-NOOB Cryptosuites RFC 9140
EAP-NOOB Error Codes EAP-NOOB Error Codes RFC 9140


EAP-NOOB Message Types EAP-NOOB Message Types RFC 9140
EAP-NOOB PeerInfo Data Fields EAP-NOOB PeerInfo Data Fields RFC 9140
EAP-NOOB ServerInfo Data Fields EAP-NOOB ServerInfo Data Fields RFC 9140
EAP-SAKE messages RFC 4763
EAP-TTLS AVP Usage RFC 5281
Encryption Algorithms RFC 4793


EXT_Type Numbers RFC 4764
Hash Algorithms RFC 4793


MAC Algorithms RFC 4793


MAC ID Namespace RFC 4746
Message Types RFC 6696
Method Types RFC 3748





non-skippable attributes RFC 4763
Packet Codes RFC 3748
Public Key ID Namespace RFC 4746
Re-authentication Cryptosuites RFC 6696
skippable attributes RFC 4763
Subtypes RFC 4187
TEAP Error TLV (value 5) Error Codes Internet Draft draft-ietf-emu-rfc7170bis-19
TEAP Error TLV (value 5) Error Codes TEAP Identity-Type TLV (value 2) Registry Internet Draft draft-ietf-emu-rfc7170bis-19
TEAP Identity-Type TLV (value 2) Registry TEAP PAC TLV (value 11) PAC Attribute Type Codes Internet Draft draft-ietf-emu-rfc7170bis-19
TEAP PAC TLV (value 11) PAC Attribute Type Codes TEAP PAC TLV (value 11) PAC-Type Type Codes Internet Draft draft-ietf-emu-rfc7170bis-19
TEAP PAC TLV (value 11) PAC-Type Type Codes TEAP Request-Action TLV (value 8) Registry Internet Draft draft-ietf-emu-rfc7170bis-19
TEAP Request-Action TLV (value 8) Registry TEAP Status Codes Internet Draft draft-ietf-emu-rfc7170bis-19
TEAP Status Codes TEAP TLV Types Internet Draft draft-ietf-emu-rfc7170bis-19
TEAP TLV Types TEAP Trusted-Server-Root TLV (value 17) Credential-Format Codes Internet Draft draft-ietf-emu-rfc7170bis-19
TEAP Trusted-Server-Root TLV (value 17) Credential-Format Codes Trusted Non-3GPP Access EAP Parameters RFC 7458
Extensible Authentication Protocol (EAP) Channel-Binding Parameters EAP Channel-Binding Codes RFC 6677
EAP Channel-Binding Namespaces RFC 6677
Extensible Authentication Protocol (EAP) Encrypted Key Exchange (EKE) Registry EAP-EKE Channel-Binding Type Registry RFC 6124
EAP-EKE Diffie-Hellman Group Registry RFC 6124
EAP-EKE Encryption Algorithm Registry RFC 6124
EAP-EKE Exchange Registry RFC 6124
EAP-EKE Failure-Code Registry RFC 6124
EAP-EKE Identity Type Registry RFC 6124
EAP-EKE Keyed Message Digest (MAC) Registry RFC 6124
EAP-EKE Pseudo Random Function Registry RFC 6124
Extensible Binary Meta Language (EBML) EBML DocTypes RFC 8794
EBML Element IDs RFC 8794




Extensible Markup Language (XML) Configuration Access Protocol (XCAP) Parameters XCAP Application Unique IDs RFC 4825
Extensible Provisioning Protocol (EPP) Extensions Extensions for the Extensible Provisioning Protocol (EPP) RFC 7451
Extensible Provisioning Protocol (EPP) Organization Role Values EPP Organization Role Values RFC 8543
Extensible Provisioning Protocol (EPP) Repository Identifiers EPP Repository Identifiers RFC 5730
F FCAST Parameters FCAST Object Metadata Encoding RFC 6968
FCAST Object Metadata Format RFC 6968
FCAST Object Metadata Types RFC 6968
Federated File System (FedFS) Parameters FedFS Annotation Keys RFC 7532
FedFS Object Identifiers RFC 7532
Fibre Channel Port Types Registry Fibre Channel Port Types RFC 4044



Flow Spec Component Types Flow Spec Component Types RFC 8955, RFC 8956




FLUTE - File Delivery over Unidirectional Transport (FLUTE) Parameters FLUTE Content Encoding Algorithms RFC 6726
FOOBAR Address Family Numbers Assigned FOOBAR Address Families RFC 1639
Forwarding and Control Element Separation (ForCES) Association Setup Response RFC 5810


Association Teardown Message RFC 5810


Exception ID RFC 6956
EXTENDEDRESULT-TLV Result Values RFC 7391
Header Flags RFC 5810
Logical Functional Block (LFB) Class Names and Class Identifiers RFC 5812, RFC 7121

Message Types RFC 5810


Metadata ID RFC 6956
Operation Selection (OPER-TLV) Types RFC 5810


RESULT-TLV Result Values RFC 5810
TLV Types RFC 5810


Validate Error ID RFC 6956
Free Lossless Audio Codec (FLAC) FLAC Application Metadata Block IDs RFC 9639
FTP parameters FTP Commands and Extensions RFC 5797


G General Internet Signalling Transport (GIST) Parameters Additional Information Types RFC 5971
Error Code 1 Subcodes RFC 5971
Error Code 10 Subcodes RFC 5971
Error Code 12 Subcodes RFC 5971
Error Code 9 Subcodes RFC 5971
GIST Error Codes RFC 5971
GIST MA-Protocol-IDs RFC 5971


GIST Message Routing Methods RFC 5971


GIST Message Types RFC 5971


GIST Object Types RFC 5971


NSIS Signaling Layer Protocol (NSLP) Identifiers RFC 5971
Generalized Multi-Protocol Label Switching (GMPLS) Signaling Parameters Actions RFC 3471
Administrative Status Information Flags RFC 4783
Association Type RFC 4872
CWDM Channel Spacing Subregistry RFC 6205
DWDM Channel Spacing Subregistry RFC 6205
Ethernet Bandwidth Profiles RFC 6003
Ethernet Sender TSpec TLVs/Ethernet Flowspec TLVs RFC 6003
Ethernet Switching Granularities RFC 6003
Generalized PIDs (G-PID) RFC 3471, RFC 4328


Generalized SCSI (Switching Capability Specific Information) TLV Types RFC 8258
Grid Subregistry RFC 6205
Hierarchy Actions RFC 6107
Interface_ID Types RFC 3471
LSP Encoding Types RFC 3471, RFC 4328

OTN Signal Type RFC 7139, RFC 7892


Special Purpose Generalized Label Values RFC 8359
Switching Types RFC 3471, RFC 4328, RFC 7074
GeneRic Autonomic Signaling Protocol (GRASP) Parameters GRASP Messages and Options RFC 8990
GRASP Objective Names RFC 8990
Generic Routing Encapsulation (GRE) Parameters GRE Protocol Types RFC 2784
GRE Version Numbers RFC 2784
Generic Security Service Application Program Interface (GSSAPI)/Kerberos/Simple Authentication and Security Layer (SASL) Service Names GSSAPI/Kerberos/SASL Service Names RFC 2743
Generic Security Service Application Program Interface Parameters GSS-API URN Parameters RFC 7056
Geolocation Policy Geolocation Policy Location Profile Names RFC 6772
Geopriv HTTP Enabled Location Delivery (HELD) Parameters HELD Error Codes RFC 5985
Geopriv Identifiers Geopriv Identifiers RFC 7035
Geopriv Location Object Registries Method Tokens RFC 4119
PIDF-LO Civic Address Considerations Registry RFC 5774
XML Namespaces for 'provided-by' elements for use with PIDF-LO objects RFC 4119
Geopriv Location Type Registries Civic Address Types (CAtypes) RFC 4776, RFC 6848


Location Types RFC 4589
Relative Location Parameters RFC 7035
Global Navigation Satellite System (GNSS) Global Navigation Satellite System (GNSS) Types RFC 7105
Global Switch Management Protocol version 3 (GSMPv3) Adaptation Type Name Space Adaptation Types RFC 3292

Global Switch Management Protocol version 3 (GSMPv3) Event Flag Name Space Event Flags RFC 3292
Global Switch Management Protocol version 3 (GSMPv3) Failure Response Message Name Space Failure Response Message Names RFC 3292




Global Switch Management Protocol version 3 (GSMPv3) Label Type Name Space Label Type Names RFC 3292


Global Switch Management Protocol version 3 (GSMPv3) Message Type Name Space Message Types RFC 3292



Global Switch Management Protocol version 3 (GSMPv3) Model Type Name Space Model Type Names RFC 3292


Global Switch Management Protocol version 3 (GSMPv3) Port Type Name Space Port Type Names RFC 3292


Global Switch Management Protocol version 3 (GSMPv3) Result Type Name Space Result Type Names RFC 3292
Global Switch Management Protocol version 3 (GSMPv3) Service ID Name Space Service ID Names RFC 3292

Global Switch Management Protocol version 3 (GSMPv3) Traffic Control Name Space Traffic Control Flags RFC 3292
Global Switched Telephone Network (GSTN) Address Element Extensions in Email Services Qual2-Label RFC 2846
Qualif-Type 1 RFC 2846, RFC 3191
Service Selector RFC 2846, RFC 3191
GMPLS Routing Parameters for WSON Types for Subfields of WSON Resource Block Information Registry RFC 7581
Grant Negotiation and Authorization Protocol (GNAP) GNAP Access Token Flags RFC 9635
GNAP Assertion Formats RFC 9635
GNAP Authorization Server Discovery Fields RFC 9635
GNAP Client Instance Display Fields RFC 9635
GNAP Client Instance Fields RFC 9635
GNAP Error Codes RFC 9635
GNAP Grant Request Parameters RFC 9635
GNAP Grant Response Parameters RFC 9635
GNAP Interaction Finish Methods RFC 9635
GNAP Interaction Hints RFC 9635
GNAP Interaction Mode Responses RFC 9635
GNAP Interaction Start Modes RFC 9635
GNAP Key Formats RFC 9635
GNAP Key Proofing Methods RFC 9635
GNAP Resource Set Registration Request Parameters RFC 9767
GNAP Resource Set Registration Response Parameters RFC 9767
GNAP RS-Facing Discovery Document Fields RFC 9767
GNAP RS-Facing Error Codes RFC 9767
GNAP Subject Information Request Fields RFC 9635
GNAP Subject Information Response Fields RFC 9635
GNAP Token Formats RFC 9767
GNAP Token Introspection Request RFC 9767
GNAP Token Introspection Response RFC 9767
Group Domain of Interpretation (GDOI) Payloads GAP Payload Policy Attributes RFC 6407
GDOI DOI Exchange Types RFC 8263
GDOI ID Payload Type Values RFC 3547
GDOI SA TEK Attributes RFC 8052
ID Types RFC 8052
IEC 62351-9 Authentication Values RFC 8052
IEC 62351-9 Confidentiality Values RFC 8052
Key Download Type Values RFC 3547
SA KEK Payload Values SA TEK Payload Values Group Secure Association Group Management Protocol (GSAKMP) Parameters GSAKMP Acknowledgment Types RFC 4535
GSAKMP Certificate Types RFC 4535
GSAKMP Cryptographic Key Types RFC 4535
GSAKMP Exchange Types RFC 4535
GSAKMP Group Identification Types RFC 4535
GSAKMP Identification Classification RFC 4535
GSAKMP Identification Types RFC 4535
GSAKMP Key Creation Types RFC 4535
GSAKMP Key Download Data Item Types RFC 4535
GSAKMP Mechanism Types RFC 4535
GSAKMP Nonce Hash Types RFC 4535
GSAKMP Nonce Types RFC 4535
GSAKMP Notification Types RFC 4535
GSAKMP Payload Types RFC 4535
GSAKMP Policy Token Types RFC 4535
GSAKMP Rekey Event Types RFC 4535
GSAKMP Signature Types RFC 4535
H Hash Algorithms for HTTP Digest Fields Hash Algorithms for HTTP Digest Fields RFC 9530
Hash Function Textual Names Hash Function Textual Names RFC 8122
Hash-Based Signatures Leighton-Micali Signatures (LMS) RFC 8554


LM-OTS Signatures RFC 8554


WOTS+ Signatures RFC 8391
XMSS Signatures RFC 8391
XMSS^MT Signatures RFC 8391
Host Identity Protocol (HIP) Parameters DI-Types RFC 7401
ESP Transform Suite IDs RFC 7402
Group IDs RFC 7401
HI Algorithm RFC 7401
HIP Certificate Types RFC 8002
HIP Cipher ID RFC 7401
HIP NAT Traversal Modes RFC 5770
HIP Transport Modes RFC 6261
HIP Version RFC 7401
HIP Via Flags RFC 6028
HIT Suite ID RFC 7401
Notify Message Types RFC 7401





Packet Types RFC 7401
Parameter Types RFC 7401





Registration Failure Types RFC 8003

Registration Types RFC 8003

Suite IDs RFC 5201
HTTP Message Signature HTTP Signature Algorithms RFC 9421
HTTP Signature Component Parameters RFC 9421
HTTP Signature Derived Component Names RFC 9421
HTTP Signature Metadata Parameters RFC 9421
HTTP Origin-Bound Authentication (HOBA) Parameters HOBA Device Identifier Types RFC 7486
HOBA Key Identifier Types RFC 7486
HOBA Signature Algorithms RFC 7486
Hybrid Public Key Encryption (HPKE) HPKE AEAD Identifiers RFC 9180
HPKE KDF Identifiers RFC 9180
HPKE KEM Identifiers RFC 9180
Hypertext Transfer Protocol (HTTP) Alt-Svc Parameter Registry HTTP Alt-Svc Parameter Registry RFC 7838
Hypertext Transfer Protocol (HTTP) Authentication Control Parameters HTTP Authentication Control Parameters RFC 8053
HTTP Mutual Authentication Host Validation Methods RFC 8120
Hypertext Transfer Protocol (HTTP) Authentication Scheme Registry HTTP Authentication Schemes RFC 9110
HTTP Mutual Authentication Algorithms RFC 8120
Hypertext Transfer Protocol (HTTP) Cache Directive Registry HTTP Cache Directive Registry RFC 9111
Hypertext Transfer Protocol (HTTP) Cache-Status HTTP Cache-Status RFC 9211
Hypertext Transfer Protocol (HTTP) Digest Algorithm Values Hash Algorithms for HTTP Digest Authentication RFC 7616
HTTP Digest Algorithm Values RFC 3230
Hypertext Transfer Protocol (HTTP) Field Name Registry Hypertext Transfer Protocol (HTTP) Field Name Registry RFC 9110, RFC 9651
Hypertext Transfer Protocol (HTTP) Method Registry HTTP Method Registry RFC 9110
Hypertext Transfer Protocol (HTTP) Parameters HTTP Content Coding Registry RFC 9110
HTTP Forwarded Parameters RFC 7239
HTTP Preferences RFC 7240
HTTP Range Unit Registry RFC 9110
HTTP Transfer Coding Registry RFC 9112
Hypertext Transfer Protocol (HTTP) Priority HTTP Priority RFC 9218


Hypertext Transfer Protocol (HTTP) Problem Types HTTP Problem Types RFC 9457
Hypertext Transfer Protocol (HTTP) Proxy-Status HTTP Proxy Error Types RFC 9209
HTTP Proxy-Status Parameters RFC 9209
Hypertext Transfer Protocol (HTTP) Status Code Registry HTTP Status Codes RFC 9110
Hypertext Transfer Protocol (HTTP) Upgrade Token Registry HTTP Upgrade Tokens RFC 9110
Hypertext Transfer Protocol (HTTP) Warn Codes HTTP Warn Codes RFC 7234
Hypertext Transfer Protocol version 2 (HTTP/2) Parameters HTTP/2 Error Code RFC 9113
HTTP/2 Frame Type RFC 9113
HTTP/2 Settings RFC 9113
Hypertext Transfer Protocol version 3 (HTTP/3) HTTP/3 Error Codes RFC 9114






HTTP/3 Frame Types RFC 9114






HTTP/3 Settings RFC 9114






HTTP/3 Stream Types RFC 9114






I IANA OUI Ethernet Numbers IANA Link Layer Discovery Protocol (LLDP) TLV Subtypes RFC 8520, RFC 9542
IANA MAC ADDRESS BLOCK RFC 9542
SNAP Protocol Numbers RFC 9542
The CFxxxx Series IANA-Maintained MIBs IANA-ADDRESS-FAMILY-NUMBERS-MIB RFC 2677 IANA-BFD-TC-STD-MIB RFC 7330
IANA-CHARSET-MIB RFC 3808
IANA-ENERGY-RELATION-MIB RFC 7461
IANA-ENTITY-MIB RFC 6933
IANA-FINISHER-MIB RFC 3806
IANA-GMPLS-TC-MIB RFC 4802
IANA-IPPM-METRICS-REGISTRY-MIB RFC 4148, RFC 6248
IANA-ITU-ALARM-TC-MIB RFC 3877
IANA-LANGUAGE-MIB RFC 3165
IANA-MALLOC-MIB RFC 3559
IANA-MAU-MIB RFC 4836
IANA-POWER-STATE-SET-MIB RFC 7460
IANA-PRINTER-MIB RFC 3805
IANA-RTPROTO-MIB RFC 2932
IANA-SMF-MIB RFC 7367
IANA-STORAGE-MEDIA-TYPE-MIB RFC 7666
IANAifType-MIB RFC 2863, RFC 8892
IANAolsrv2LinkMetricType-MIB RFC 7184
IANATn3270eTC-MIB RFC 2561
iCalendar Element Registries Actions RFC 5545
Calendar User Types RFC 5545
Classifications RFC 5545
Components RFC 5545
Display Types RFC 7986
Feature Types RFC 7986
Free/Busy Time Types RFC 5545
Methods RFC 5545
Parameters RFC 5545
Participant Types RFC 9073
Participation Roles RFC 5545
Participation Statuses RFC 5545
Properties RFC 5545
Proximity Values RFC 9074
Relationship Types RFC 5545
REQUEST-STATUS Values RFC 5546
Resource Types RFC 9073
Schedule Agent Values Registry RFC 6638
Schedule Force Send Values Registry RFC 6638
Value Data Types RFC 5545
IDNA Rules and Derived Property Values IDNA Contextual Rules RFC 5892, RFC 6452, RFC 8753, RFC 9233
IDNA Derived Properties RFC 5892, RFC 6452, RFC 8753, RFC 9233
IEEE 802 Numbers Ethertypes RFC 9542
Logical Link Control (LLC) Numbers
Organizationally Unique Identifiers
IEEE Std 802.15.4 IETF IE Subtype IDs IEEE Std 802.15.4 IETF IE Subtype IDs RFC 8137
IETF XML Registry ns RFC 3688
publicid RFC 3688
rdfschema
schema RFC 3688, RFC 6685
In Situ OAM (IOAM) IOAM DEX Extension-Flags RFC 9326
IOAM DEX Flags RFC 9326
IOAM E2E-Type RFC 9197
IOAM Namespace-ID RFC 9197



IOAM Option-Type RFC 9197
IOAM POT-Flags RFC 9197
IOAM POT-Type RFC 9197
IOAM Trace-Flags RFC 9197
IOAM Trace-Type RFC 9197
In Situ OAM (IOAM) Capabilities IOAM SoP Capability Internet Draft draft-ietf-ippm-ioam-conf-state-10
IOAM TSF Capability Internet Draft draft-ietf-ippm-ioam-conf-state-10
Incident Object Description Exchange Format (IODEF) Structured Cybersecurity Information (SCI) Specifications RFC 7203
Incident Object Description Exchange Format v2 (IODEF) Address-category RFC 7970
BulkObservable-type RFC 7970
BusinessImpact-severity RFC 7970
BusinessImpact-type RFC 7970
Confidence-rating RFC 7970
Contact-role RFC 7970
Contact-type RFC 7970
Counter-type RFC 7970
Counter-unit RFC 7970
Discovery-source RFC 7970
DomainData-domain-status RFC 7970
DomainData-system-status RFC 7970
Email-type RFC 7970
Expectation-action RFC 7970
ExtensionType-dtype RFC 7970
HashData-scope RFC 7970
Incident-purpose RFC 7970
Incident-status RFC 7970
IndicatorExpression-operator RFC 7970
Key-registryaction RFC 7970
NodeRole-category RFC 7970
PostalAddress-type RFC 7970
RecordPattern-offsetunit RFC 7970
RecordPattern-type RFC 7970
RegistryHandle-registry RFC 7970
Restriction RFC 7970
SoftwareReference-dtype RFC 7970
SoftwareReference-spec-id RFC 7970
System-category RFC 7970
System-ownership RFC 7970
SystemImpact-type RFC 7970
Telephone-type RFC 7970
TimeImpact-duration RFC 7970
TimeImpact-metric RFC 7970
Instance Manipulation Values Instance Manipulation Values RFC 3229
Instant Message Disposition Notification (IMDN) Headers IMDN Headers RFC 5438
Instant Messaging SRV Protocol Label Registry Instant Messaging SRV Protocol Label Registry RFC 3861
Integrated Services Parameters Compression Hints RFC 3006
Parameter Names RFC 2216

Service Names RFC 2216

Inter-Asterisk eXchange (IAX) Parameters IAX Authentication Methods RFC 5457
IAX Calling Presentation RFC 5457
IAX Calling Type of Number RFC 5457
IAX Cause Codes RFC 5457
IAX Control Frame Subclass RFC 5457
IAX Control Frames RFC 5457
IAX Dialplan Status Flags RFC 5457
IAX Encryption Methods RFC 5457
IAX Frame Types RFC 5457
IAX HTML Command Subclasses RFC 5457
IAX Information Elements RFC 5457
IAX Media Formats RFC 5457
IAX Meta Commands RFC 5457
IAX Transit Network Identification Plan RFC 5457
IAX Type of Network RFC 5457
Interactive Connectivity Establishment (ICE) ICE Options RFC 8839
ICE Transport Protocols RFC 6544
Interface Parameters Interface Types (ifType) RFC 1213, RFC 2863, RFC 7224, RFC 8892
Transmission Number Values RFC 1213, RFC 8892
Tunnel Types (tunnelType) RFC 4087, RFC 8675, RFC 8892
Interior Gateway Protocol (IGP) Parameters IGP Algorithm Type For Computing Flooding Topology Internet Draft draft-ietf-lsr-dynamic-flooding-18
IGP Algorithm Types RFC 8665
IGP Flexible Algorithm Definition Flags RFC 9350
IGP Metric-Type RFC 9350, Internet Draft draft-ietf-lsr-flex-algo-bw-con-22
IGP MSD-Types RFC 8491, RFC 9702
Link Attribute Application Identifiers RFC 9479
Path Computation Element (PCE) Capability Flags RFC 9353
PCE Discovery (PCED) Sub-TLV Type Indicators RFC 9353
Internet - Xerox Network System (XNS) Protocol Mappings Internet - Xerox Network System (XNS) Protocol Mappings Internet Control Message Protocol (ICMP) Parameters Code Fields RFC 2780 ICMP Extension Object Classes and Class Sub-types RFC 4884

ICMP Type Numbers RFC 2780, Internet Draft draft-ietf-netmod-acl-extensions-17
Internet Control Message Protocol version 6 (ICMPv6) Parameters 6LoWPAN Capability Bits RFC 7400
Address Registration Option Flags RFC 8505
Address Registration Option I-Field RFC 8505
Address Registration Option Status Values RFC 6775, RFC 9010
Certificate option (Type 16) Cert Type field RFC 3971
Crypto-Types RFC 8928
EDAR Message Flags RFC 9685
FMIPv6 Message Types (Value 154) RFC 5568
ICMPv6 "Code" Fields RFC 4443 ICMPv6 "type" Numbers RFC 4443, Internet Draft draft-ietf-netmod-acl-extensions-17

IPv6 ND Router Advertisement Flags RFC 5175
IPv6 Neighbor Discovery Option Formats RFC 4861
IPv6 Neighbor Discovery Prefix Information Option Flags RFC 8425
Option-Code for Handover Assist Information Option (Type 29) RFC 5271
Option-Code for Mobile Node Identifier Option (Type 30) RFC 5271
P-Field Values RFC 9685
PvD Option Flags RFC 8801
Qtypes RFC 4620
Trust Anchor option (Type 15) Name Type field RFC 3971, RFC 6495
Internet Date/Time Format Timestamp Suffix Tag Keys RFC 9557


Internet Group Management Protocol (IGMP) Type Numbers "Code" Fields RFC 9778
IGMP Type Numbers RFC 9778
IGMP/MLD Extension Types RFC 9279

IGMP/MLD Query Message Flags RFC 9778
IGMP/MLD Report Message Flags RFC 9778
Internet Key Exchange (IKE) Attributes Additional Exchanges Defined-- XCHG values RFC 2409, RFC 9395
Attribute Classes RFC 2409, RFC 9395
Encryption Algorithm Class Values (Value 1) RFC 2409, RFC 9395
Exchange Type RFC 2408, RFC 9395
Group Description (Value 4) RFC 2409, RFC 9395
Group Type (Value 5) RFC 2409, RFC 9395
Hash Algorithm (Value 2) RFC 2409, RFC 9395
IPSEC Authentication Methods (Value 3) RFC 2409, RFC 9395
ISAKMP Domain of Interpretation (DOI) RFC 2408, RFC 9395
Life Type (Value 11) RFC 2409, RFC 9395
Next Payload Types RFC 2408, RFC 9395
Notify Message Types RFC 2408, RFC 9395 Notify Messages - Error Types (1-8191) RFC 2408, RFC 9395
PRF (Value 13) RFC 2409, RFC 9395
Internet Key Exchange Version 2 (IKEv2) Parameters Group Key Bag Attributes Internet Draft draft-ietf-ipsecme-g-ikev2-21
Group-wide Policy Attributes Internet Draft draft-ietf-ipsecme-g-ikev2-21
GSA Attributes Internet Draft draft-ietf-ipsecme-g-ikev2-21
IKEv2 Authentication Method RFC 7296
IKEv2 Certificate Encodings RFC 7296
IKEv2 Configuration Payload Attribute Types RFC 7296
IKEv2 Configuration Payload CFG Types RFC 7296
IKEv2 Exchange Types RFC 7296
IKEv2 Gateway Identity Types RFC 5685
IKEv2 Hash Algorithms RFC 7427
IKEv2 Identification Payload ID Types RFC 7296
IKEv2 Notification IPCOMP Transform IDs (Value 16387) RFC 7296
IKEv2 Notify Message Error Types RFC 7296


IKEv2 Notify Message Status Types RFC 7296


IKEv2 Payload Types RFC 7296
IKEv2 Post-quantum Preshared Key ID Types RFC 8784


IKEv2 Secure Password Methods RFC 6467
IKEv2 Security Protocol Identifiers RFC 7296
IKEv2 Traffic Selector Types RFC 7296
Member Key Bag Attributes Internet Draft draft-ietf-ipsecme-g-ikev2-21
ROHC Attribute Types RFC 5857
Transform Type Values RFC 7296, RFC 9370
Internet Message Access Protocol (IMAP) Capabilities IMAP and JMAP Keywords RFC 5788, RFC 8621
IMAP ANNOTATE Extension Attributes RFC 5257
IMAP ANNOTATE Extension Entries RFC 5257

IMAP Capabilities RFC 3501, RFC 9051
IMAP Mailbox Name Attributes RFC 3501, RFC 8457, RFC 9051
IMAP METADATA Mailbox Entry Registry RFC 5464
IMAP METADATA Server Entry Registry RFC 5464
IMAP Quota Resource Types RFC 9208
IMAP Response Codes RFC 5530
IMAP Threading Algorithms RFC 5256
IMAP URLAUTH Access Identifiers and Prefixes RFC 5593
IMAP URLAUTH Authorization Mechanism Registry RFC 4467
LIST-EXTENDED options RFC 5258
LIST-EXTENDED response RFC 5258
Internet Message Store Events Event Names RFC 5423

Event Parameters RFC 5423

Internet Open Trading Protocol (IOTP) Codes Algorithm/Name RFC 2801
Attribute/Content RFC 2801
Brand/BrandId RFC 2801
CurrencyAmount/CurrCode RFC 2801
CurrencyAmount/CurrCodeType RFC 2801
DeliveryData/DelivMethod RFC 2801
PackagedContent/Content RFC 2801
RelatedTo/RelationshipType RFC 2801
Status/StatusType RFC 2801
TradingRole/Trading Role RFC 2801
TransId/IotpTransType RFC 2801
Internet Printing Protocol (IPP) Registrations Attribute Group Tags RFC 8011
Attribute Syntaxes RFC 8011
Attributes RFC 8011
Enum Attribute Values RFC 8011


Keyword Attribute Values RFC 8011


Objects RFC 8011
Operations RFC 8011
Out-of-Band Attribute Value Tags RFC 8011
Status Codes RFC 8011
Internet Protocol version 4 (IPv4) Address Space Allocations made from the Current Recovered IPv4 Pool
Current Recovered IPv4 Pool
IANA IPv4 Address Space Registry RFC 7249
IANA IPv4 Special-Purpose Address Registry RFC 5736, RFC 6890, RFC 8190
Internet Protocol Version 4 (IPv4) Parameters IP Option Numbers
IP Time to Live Parameter
IP TOS Parameters
IPv4 Router Alert Option Values RFC 5350
Type-of-Service Values
Internet Protocol Version 6 (IPv6) Anycast Addresses IPv6 Anycast Addresses RFC 4291, RFC 2526
IPv6 Anycast Subnet-Router Anycast Address RFC 4291
Internet Protocol version 6 (IPv6) Global Unicast Allocations IANA IPv6 Special-Purpose Address Registry RFC 4773, RFC 6890, RFC 8190
IPv6 Global Unicast Address Assignments RFC 7249
Internet Protocol Version 6 (IPv6) Parameters Destination Options and Hop-by-Hop Options RFC 8200, RFC 2780, RFC 9673
IPv6 Extension Header Types RFC 2780, RFC 5237, RFC 7045, Internet Draft draft-ietf-netmod-acl-extensions-17
Next Header Types RFC 8200, RFC 2780, RFC 7045 Routing Types RFC 8200, RFC 5871
RPL-option-TLV RFC 6553
Segment Routing Header Flags RFC 8754
Segment Routing Header TLVs RFC 8754
TaggerId Types RFC 6621
Internet Protocol Version 6 Address Space Internet Protocol Version 6 Address Space Internet Small Computer System Interface (iSCSI) Parameters iSCSI Asynchronous Events RFC 7143
iSCSI authentication methods RFC 7143
iSCSI digests RFC 7143
iSCSI Login Response Status Codes RFC 7143
iSCSI Login/Text Keys RFC 7145, RFC 7143
iSCSI Opcodes RFC 7143
iSCSI Protocol Level RFC 7144
iSCSI Reject Reason Codes RFC 7143
iSCSI Task Management Function Codes RFC 7143
iSCSI Task Management Function Response Codes RFC 7144
iSER Opcodes RFC 7145
SRP_GROUP key values RFC 3723
Internet Storage Name Service (iSNS) Parameters Block Storage Protocols RFC 4171
Standard iSNS Attributes RFC 4171
Intrusion Detection Exchange Protocol (IDXP) Options IDXP Options RFC 4767
Intrusion Detection Message Exchange Format (IDMEF) Parameters Attribute Values RFC 4765
Class and Attribute Names RFC 4765
IP Flow Information Export (IPFIX) Entities IPFIX Information Element Data Types RFC 5610
IPFIX Information Element Semantics RFC 5610
IPFIX Information Element Units RFC 5610
IPFIX Information Elements RFC 7012, RFC 9710
IPFIX ipv6ExtensionHeaders Bits RFC 9740
IPFIX Set IDs RFC 7011
IPFIX Structured Data Types Semantics RFC 6313
IPFIX Version Numbers RFC 7011
IP Multicast Traceroute Facility (Mtrace) Mtrace2 Forwarding Codes RFC 8487
Mtrace2 TLV Types RFC 8487
IP Version Numbers IP Version Numbers RFC 2780
IPS Protocol# (Protocol Number) Field Protocol# (Protocol Number) Field RFC 3643

IPSECKEY Resource Record Parameters Algorithm Type Field RFC 4025, RFC 9373
Gateway Type Field RFC 4025
IPv4 Multicast Address Space Registry AD-HOC Block I (224.0.2.0 - 224.0.255.255) RFC 5771
AD-HOC Block II (224.3.0.0-224.4.255.255 (224.3/16, 224.4/16)) RFC 5771
AD-HOC Block III (233.252.0.0-233.255.255.255 (233.252/14)) RFC 5771
DIS Transient Groups 224.252.0.0-224.255.255.255 (224.252/14)) RFC 2365
GLOP Block RFC 3180
Internetwork Control Block (224.0.1.0 - 224.0.1.255 (224.0.1/24)) RFC 5771
Local Network Control Block (224.0.0.0 - 224.0.0.255 (224.0.0/24)) RFC 5771
Relative Addresses used with Scoped Multicast Addresses RFC 5771
RESERVED (224.1.0.0-224.1.255.255 (224.1/16)) RFC 5771
RESERVED (224.5.0.0-224.251.255.255 (251 /16s)) RFC 5771
RESERVED (225.0.0.0-231.255.255.255 (7 /8s)) RFC 5771
Scoped Multicast Ranges RFC 5771
SDP/SAP Block (224.2.0.0-224.2.255.255 (224.2/16)) RFC 5771
Source-Specific Multicast Block (232.0.0.0-232.255.255.255 (232/8)) RFC 5771
Unicast-Prefix-based IPv4 Multicast Addresses RFC 6034
IPv6 Low Power Personal Area Network Parameters Critical 6LoWPAN Routing Header Type RFC 8138
Dispatch Type Field RFC 4944, RFC 8025
Elective 6LoWPAN Routing Header Type RFC 8138
ESC Extension Types RFC 8066
LOWPAN_NHC Header Type RFC 6282
Short Address Fields RFC 4944
IPv6 Multicast Address Space Registry IPv6 Multicast Address Scopes RFC 7346
Link-Local Scope Multicast Addresses RFC 3307
Node-Local Scope Multicast Addresses RFC 4291, RFC 3307
Site-Local Scope Multicast Addresses RFC 3307
Unicast-based (Including SSM) Multicast Group IDs RFC 3307
Variable Scope Multicast Addresses RFC 3307
IPv6 Over the TSCH Mode of IEEE 802.15.4 (6TiSCH) 6P CellOptions Bitmap RFC 8480
6P Command Identifiers RFC 8480
6P Message Types RFC 8480
6P Return Codes RFC 8480
6P Scheduling Function Identifiers RFC 8480


6P Version Numbers RFC 8480
Constrained Join Protocol (CoJP) Key Usage RFC 9031





Constrained Join Protocol (CoJP) Parameters RFC 9031





Constrained Join Protocol (CoJP) Unsupported Configuration Codes RFC 9031





IPv6 Router Alert Option Values IPv6 Router Alert Option Values RFC 2711, RFC 9805
IPv6 Top Level Aggregation Identifier Assignments Sub-TLA Identifier Assignments RFC 4147
TLA Identifier Assignments RFC 4147
IS-IS IS-IS Application Identifiers for Generic Information TLV RFC 6823
IS-IS Authentication Type Codes RFC 5304
IS-IS Bit Values for Flooding Parameters Flags Sub-TLV RFC 9681
IS-IS Bit Values for Prefix Attribute Flags Sub-TLV RFC 7794
IS-IS Group Address Type Codes for GADDR-TLV RFC 7176
IS-IS Multi-Topology ID Values RFC 5120


IS-IS Neighbor Link-Attribute Bit Values RFC 5029, RFC 9667, RFC 9650
IS-IS PDU Registry RFC 7176
IS-IS SRv6 Adjacency SID Sub-TLVs Flags RFC 9352
IS-IS SRv6 Capabilities Sub-TLV Flags RFC 9352
IS-IS SRv6 End SID Sub-TLV Flags RFC 9352
IS-IS SRv6 Locator TLV Flags RFC 9352
IS-IS Sub-Sub-TLV Codepoints for Application-Specific Link Attributes RFC 9479, Internet Draft draft-ietf-lsr-multi-tlv-19
IS-IS Sub-Sub-TLVs for BIER Info Sub-TLV RFC 8401, Internet Draft draft-ietf-lsr-multi-tlv-19
IS-IS Sub-Sub-TLVs for Flexible Algorithm Definition Sub-TLV RFC 9350, Internet Draft draft-ietf-lsr-multi-tlv-19
IS-IS Sub-Sub-TLVs for Flood Reflection Discovery Sub-TLV RFC 9377, Internet Draft draft-ietf-lsr-multi-tlv-19
IS-IS Sub-Sub-TLVs for SRv6 Capabilities Sub-TLV RFC 9352, Internet Draft draft-ietf-lsr-multi-tlv-19
IS-IS Sub-Sub-TLVs for SRv6 SID Sub-TLVs RFC 9352, Internet Draft draft-ietf-lsr-multi-tlv-19
IS-IS Sub-TLVs for Application-Specific SRLG TLV RFC 9479, Internet Draft draft-ietf-lsr-multi-tlv-19
IS-IS Sub-TLVs for Flooding Parameters TLV RFC 9681
IS-IS Sub-TLVs for IS-IS Router CAPABILITY TLV RFC 7981, Internet Draft draft-ietf-lsr-multi-tlv-19
IS-IS Sub-TLVs for MT-Capability TLV RFC 6329, Internet Draft draft-ietf-lsr-multi-tlv-19
IS-IS Sub-TLVs for MT-Port-Cap-TLV RFC 7176
IS-IS Sub-TLVs for Reverse Metric TLV RFC 8500, Internet Draft draft-ietf-lsr-multi-tlv-19
IS-IS Sub-TLVs for Segment Identifier/Label Binding TLVs RFC 8667, Internet Draft draft-ietf-lsr-multi-tlv-19
IS-IS Sub-TLVs for the Area Proxy TLV RFC 9666
IS-IS Sub-TLVs for TLVs Advertising Neighbor Information RFC 5305, RFC 5316, RFC 7370, RFC 8668, Internet Draft draft-ietf-lsr-multi-tlv-19
IS-IS Sub-TLVs for TLVs Advertising Prefix Reachability RFC 5305, RFC 7370, RFC 9352, Internet Draft draft-ietf-lsr-multi-tlv-19
IS-IS Top-Level TLV Codepoints RFC 3563, RFC 6233, RFC 7356, RFC 8918, Internet Draft draft-ietf-lsr-multi-tlv-19
LSP Flooding Scope Identifier Registry RFC 7356
J Java Message Service (JMS) URI Scheme Variants JMS URI Scheme Variants RFC 6167
JSCalendar JSCalendar Enum Values RFC 8984
JSCalendar Properties RFC 8984, Internet Draft draft-ietf-jmap-calendars-22
JSCalendar Types RFC 8984
JSContact JSContact Enum Values RFC 9553


JSContact Properties RFC 9553


JSContact Types RFC 9553


JSContact Version RFC 9553


JSON Meta Application Protocol (JMAP) JMAP Capabilities RFC 8620


JMAP Data Types RFC 9404
JMAP Error Codes RFC 8620
JSON Object Signing and Encryption (JOSE) JSON Web Encryption Compression Algorithms RFC 7518
JSON Web Key Elliptic Curve RFC 7518, RFC 7638
JSON Web Key Operations RFC 7517
JSON Web Key Parameters RFC 7517, RFC 7638
JSON Web Key Set Parameters RFC 7517
JSON Web Key Types RFC 7518, RFC 7638
JSON Web Key Use RFC 7517
JSON Web Signature and Encryption Algorithms RFC 7518, Internet Draft draft-ietf-jose-fully-specified-algorithms-13
JSON Web Signature and Encryption Header Parameters RFC 7515
JSON Web Token (JWT) JSON Web Token Claims RFC 7519
JWT Confirmation Methods RFC 7800
PASSporT RCD Claim Types Internet Draft draft-ietf-stir-passport-rcd-26
PASSporT Resource Priority Header (rph) Types RFC 8443
Personal Assertion Token (PASSporT) Extensions RFC 8225
JSONPath Function Extensions RFC 9535
K Kerberized Internet Negotiation of Keys (KINK) Parameters KINK Error Codes RFC 4430



KINK Message Types RFC 4430


KINK Next Payload Types RFC 4430


Kerberos Parameters FAST Armor Types RFC 6113
FAST Options RFC 6113
Kerberos Checksum Type Numbers RFC 3961
Kerberos Encryption Type Numbers RFC 3961
Kerberos Message Transport Types RFC 6784
Kerberos Second Factor Types RFC 9588
Kerberos SPAKE Groups RFC 9588
Kerberos TCP Extensions RFC 5021

Pre-authentication and Typed Data RFC 6113
Well-Known Kerberos Principal Names RFC 6111
Well-Known Kerberos Realm Names RFC 6111
Kerberos V GSS-API Mechanism Parameters Kerberos V GSS-API Mechanism Extension Types RFC 6542


Kerberos V GSS-API Token Type Identifiers RFC 4121, RFC 7055
Keying and Authentication for Routing Protocols (KARP) Parameters Cryptographic Protocol ID RFC 7166
KeyNote Parameters KeyNote app_domain Identifiers RFC 2704
KeyNote Public Key Format Identifiers RFC 2704
KeyNote Signature Algorithm Identifiers RFC 2704
KeyTable KeyTable AlgIDs RFC 7210
KeyTable KDFs RFC 7210
KeyTable Protocols RFC 7210
L Label Distribution Protocol (LDP) Parameters Experiment ID Name Space RFC 5036

Forwarding Equivalence Class (FEC) Type Name Space RFC 5036, RFC 7358

LDP MP Opaque Value Element basic type RFC 6388
LDP MP Opaque Value Element extended type RFC 6388

LDP MP Status Value Element type RFC 6388
LDP Targeted Application Identifier RFC 8223

MAC Flush Flags RFC 7361
Message Type Name Space RFC 5036








Status Code Name Space RFC 5036


TLV Type Name Space RFC 5036




Label Generation Ruleset (LGR) Dispositions Private Dispositions RFC 7940
Standard Dispositions RFC 7940
Language Tags Language Subtag Registration Form Archive RFC 5646
Language Subtag Registry RFC 5645, RFC 5646
Language Tag Extensions RFC 5646
Language Tag Registration Form Archive (OBSOLETE) RFC 3066, RFC 4646
Language Tags (OBSOLETE) RFC 3066, RFC 4646
Layer Two Tunneling Protocol "L2TP" ATM Alarm Status AVP (Attribute Type 88) Values RFC 4454
ATM-Specific Sublayer bits RFC 4454
Bearer Field definition RFC 2661
Circuit Status Bits RFC 3931
Control Message Attribute Value Pairs RFC 3438
Data Sequencing Level RFC 3931
Default L2-Specific Sublayer bits RFC 3931 Framing Field definition RFC 2661
L2-Specific Sublayer Type RFC 3931
L2TPv3 Pseudowire Types RFC 3931


Leading Bits of the L2TP AVP Header RFC 2661, RFC 3931
Leading Bits of the L2TP Message Header RFC 2661, RFC 3931
Message Type AVP (Attribute Type 0) Values RFC 3438
PPP Disconnect Cause Code (Attribute Type 46) Values RFC 3145 Proxy Authen Type AVP (Attribute Type 29) Values RFC 2661
Result Code AVP (Attribute Type 1) Values RFC 3438
Service Category AVP (Attribute Type 42) Flag Field RFC 3301
VCCV Capability AVP (Attribute Type 96) Values RFC 5085
Layered Coding Transport (LCT) Header Extension Types LCT Header Extension Types RFC 5651




Level of Assurance (LoA) Profiles Level of Assurance Profiles RFC 6711
Licklider Transmission Protocol (LTP) Parameters LTP Cancel Segment Reason Codes RFC 7116
LTP Ciphersuites RFC 5327
LTP Client Service Identifiers RFC 7116
LTP Engine Numbers RFC 7116


LTP Extension Tags RFC 5326
Lightweight Directory Access Protocol (LDAP) - pcimSchema Descriptors pcimSchema LDAP Descriptors RFC 3703
Lightweight Directory Access Protocol (LDAP) Parameters Attribute Description Options RFC 4520
Bind Authentication Method RFC 4520
Internet Directory Numbers (iso.org.dod.internet.directory [1.3.6.1.1.]) RFC 4520, RFC 2578
LDAP authzid prefixes RFC 4520
LDAP Filter Choices RFC 4520
LDAP ModifyRequest Operations RFC 4520
LDAP Search Scopes RFC 4520
LDAP Syntaxes RFC 4520
LDAPMessage types RFC 4520
Object Identifier Descriptors RFC 4520
Protocol Mechanisms RFC 4520
resultCode values RFC 4520
Link Management Protocol (LMP) Parameters LMP Behavior Configuration Flags RFC 6898
LMP Message Type Name Space RFC 4204


LMP Object Class name space and Class type (C-Type) RFC 4204


Link Relations Link Relation Types RFC 8288
Link State Routing TE Capabilities TE Node Capabilities RFC 5073
Locally-Served DNS Zones IPv4 Locally-Served DNS Zone Registry RFC 6303
IPv6 Locally-Served DNS Zone Registry RFC 6303
service.arpa Subdomain RFC 9665
Transport-Independent Locally-Served DNS Zone Registry RFC 8375
Location-to-Service Translation (LoST) Location Profiles LoST Location Profiles RFC 5222, RFC 9036
Locator/ID Separation Protocol (LISP) Parameters LISP ACT Values RFC 9301
LISP Address Type Codes (CLOSED) RFC 6830, RFC 9301 LISP Algorithm ID Numbers RFC 9301
LISP Canonical Address Format (LCAF) Types RFC 8060
LISP Control Plane Header Bits: EID-Record RFC 9301
LISP Control Plane Header Bits: Encapsulated Control Message (ECM) RFC 9301
LISP Control Plane Header Bits: Map-Register RFC 9301
LISP Control Plane Header Bits: Map-Reply RFC 9301
LISP Control Plane Header Bits: Map-Request RFC 9301
LISP Control Plane Header Bits: Map-Request-Record RFC 9437
LISP Control Plane Header Bits: RLOC-Record RFC 9301
LISP Crypto Cipher Suite RFC 8061
LISP ECM Authentication Data Types RFC 9303
LISP Map-Reply Authentication Data Types RFC 9303
LISP Packet Types RFC 9304, RFC 9301
LISP Shared Extension Message Type Sub-types RFC 9304

LISP-GPE Next Protocol RFC 9305
LISP-SEC Authentication Data Key Derivation Function IDs RFC 9303
LISP-SEC Authentication Data Key Wrap IDs RFC 9303
LISP-SEC Preferred Authentication Data HMAC IDs RFC 9303
M Machine Names Machine Names
"Magic Numbers" for ISAKMP Protocol IPSEC AH Transform Identifiers RFC 2407, RFC 9395
IPSEC ESP Transform Identifiers RFC 2407, RFC 9395
IPSEC Identification Type RFC 2407, RFC 9395
IPSEC IPCOMP Transform Identifiers RFC 2407, RFC 9395
IPSEC ISAKMP Transform Identifiers RFC 2407, RFC 9395
IPSEC Labeled Domain Identifiers RFC 2407, RFC 9395
IPSEC Notify Message Types RFC 2407, RFC 9395
IPSEC Security Association Attributes RFC 2407, RFC 9395
IPSEC Security Protocol Identifiers RFC 2407, RFC 9395
IPSEC Situation Definition RFC 2407, RFC 9395
Mail Parameters Address Literal Tags Internet Draft draft-ietf-emailcore-rfc5321bis-43 Encoding Header Field Keywords RFC 1505
Mail Header Confidentiality Policies Internet Draft draft-ietf-lamps-header-protection-25
Mail Transmission Types RFC 821, RFC 822, RFC 5321
Multicast Email SMTP Extensions RFC 8494
Registered-states RFC 6729
SMTP PRIORITY extension Priority Assignment Policy RFC 6710
SMTP Server Limits RFC 9422
SMTP Service Extensions RFC 5321
Manufacturer Usage Description (MUD) MUD Extensions RFC 8520
MUD Well-Known Uniform Resource Name (URN) RFC 8520
Matroska Matroska AES Cipher Modes RFC 9559
Matroska Alpha Modes RFC 9559
Matroska Chapter Codec IDs RFC 9559
Matroska Color Ranges RFC 9559
Matroska Compression Algorithms RFC 9559
Matroska Content Encoding Scopes RFC 9559
Matroska Content Encoding Types RFC 9559
Matroska Display Units RFC 9559
Matroska Element IDs RFC 9559




Matroska Encryption Algorithms RFC 9559
Matroska Horizontal Chroma Sitings RFC 9559
Matroska Projection Types RFC 9559
Matroska Stereo Modes RFC 9559
Matroska Tags Target Types RFC 9559
Matroska Track Plane Types RFC 9559
Matroska Track Types RFC 9559
Matroska Vertical Chroma Sitings RFC 9559
Maximally Redundant Tree (MRT) Parameters MRT Profile Identifier Registry RFC 7812
Media Control Channel Framework Parameters Control Packages RFC 6230
Header Fields RFC 6230
IVR Prompt Variable Type for Control Packages RFC 6231
MEDIACTRL Interactive Voice Response Control Package Status Codes RFC 6623
Method Names RFC 6230
Mixer Control Package Status Code Registration RFC 6505
Status Codes RFC 6230
Media Feature Tags - iso.org.dod.internet.features (1.3.6.1.8) iso.org.dod.internet.features.global-tree (1.3.6.1.8.2) RFC 2506
iso.org.dod.internet.features.ietf-tree (1.3.6.1.8.1) RFC 2506, RFC 2534
iso.org.dod.internet.features.sip-tree (1.3.6.1.8.4) RFC 3840
iso.org.dod.internet.features.uri-tree (1.3.6.1.8.3) RFC 2506
Media Gateway Control Protocol (MGCP) List of Extension Digit Map Letters RFC 3660
LocalConnectionOptions Sub-registry RFC 3435
MGCP Package Sub-Registry RFC 3435
Media Independent Handover (MIH) MIH Table of Mappings From Service Field Values to Transport Protocols RFC 5679
Media Resource Control Protocol Version 2 (MRCPv2) Parameters Grammar Reference List Parameters RFC 6787
MRCPv2 Header Fields RFC 6787
MRCPv2 Methods and Events RFC 6787
MRCPv2 Resource Types RFC 6787
MRCPv2 Status Codes RFC 6787
MRCPv2 Vendor-Specific Parameters RFC 6787
Megaco/H.248 Packages Error Codes RFC 5125, RFC 5615
Private packages (0x8000 to 0xffff) RFC 5125, RFC 5615
Profile Names RFC 5125, RFC 5615
Public Packages (0x0001-0x7fff) RFC 5125
ServiceChange Reasons RFC 5125, RFC 5615
Message Disposition Notification (MDN) Parameters MDN-Disposition-modifier-names RFC 8098
MDN-Disposition-notification-option-names RFC 8098
MDN-Extension-field-names RFC 8098
Message Headers Content-Translation-Type Header Field Values RFC 8255
Permanent Message Header Field Names RFC 3864, Internet Draft draft-ietf-emailcore-rfc5322bis-12
Provisional Message Header Field Names RFC 3864, Internet Draft draft-ietf-emailcore-rfc5322bis-12
Message Session Relay Protocol (MSRP) Parameters Header Fields RFC 4975
Methods RFC 4975
Status Codes RFC 4975
Message Tracking Query Protocol (MTQP) Options Registry MTQP Options RFC 3887

Messaging Abuse Reporting Format (MARF) Parameters Feedback Report Header Fields RFC 5965
Feedback Report Type Values RFC 5965
Messaging Layer Security (MLS) MLS Cipher Suites RFC 9420
MLS Credential Types RFC 9420
MLS Exporter Labels RFC 9420
MLS Extension Types RFC 9420
MLS Proposal Types RFC 9420
MLS Public Key Encryption Labels RFC 9420
MLS Signature Labels RFC 9420
MLS Wire Formats RFC 9420
Milnet Parameters - Registry closed Milnet Link Numbers
Milnet Logical Addresses
Milnet X.25 Address Mappings
Mobile Ad hoc NETwork (MANET) Parameters Address Block TLV Types RFC 5444, RFC 7631, RFC 8245



Cryptographic Functions RFC 7182
Hash Functions RFC 7182
HELLO Message-Type-specific Address Block TLV Types RFC 6130



HELLO Message-Type-specific Message TLV Types RFC 6130



ICV Address Block TLV Type Extensions RFC 7182
ICV Message TLV Type Extensions RFC 7182
ICV Packet TLV Type Extensions RFC 7182
LINK_METRIC Address Block TLV Type Extensions RFC 7181
LINK_STATUS TLV Values RFC 7188
LOCAL_IF TLV Values RFC 7188
Message TLV Types RFC 5444, RFC 7631, RFC 8245



Message Types RFC 5444, RFC 8245
MPR TLV BIT Values RFC 7188
NBR_ADDR_TYPE Address Block TLV Bit Values RFC 7188
OTHER_NEIGHB TLV Values RFC 7188
Packet TLV Types RFC 5444, RFC 8245
SMF Relay Algorithm IDs RFC 6621
SMF_NBR_TYPE Address Block TLV Type Extensions RFC 6621
SMF_TYPE Message TLV Type Extensions RFC 6621
TC Message-Type-specific Address Block TLV Types RFC 7181



TC Message-Type-specific Message TLV Types RFC 7181



TIMESTAMP Address Block TLV Type Extensions RFC 7182
TIMESTAMP Message TLV Type Extensions RFC 7182
TIMESTAMP Packet TLV Type Extensions RFC 7182
Type 0 Address Block TLV Type Extensions RFC 5497, RFC 7631
Type 0 Message TLV Type Extensions RFC 5497, RFC 7631
Type 1 Address Block TLV Type Extensions RFC 5497, RFC 7631
Type 1 Message TLV Type Extensions RFC 5497, RFC 7631
Type 10 Address Block TLV Type Extensions RFC 7181, RFC 7631
Type 2 Address Block TLV Type Extensions RFC 6130, RFC 7631
Type 3 Address Block TLV Type Extensions RFC 6130, RFC 7631
Type 4 Address Block TLV Type Extensions RFC 6130, RFC 7631
Type 7 Message TLV Type Extensions RFC 7181, RFC 7631
Type 8 Address Block TLV Type Extensions RFC 7181, RFC 7631
Type 8 Message TLV Type Extensions RFC 7181, RFC 7631
Type 9 Address Block TLV Type Extensions RFC 7181, RFC 7631
Mobile IPv4 Numbers Access Technology Types RFC 5563
Code Values for General Notification Messages RFC 6098








Code Values for Mobile IP Handoff Reply Messages (Value 17) RFC 4881
Code Values for Mobile IP Registration Reply Messages RFC 5944, RFC 6521
Dual Stack (DSMIPv4) Extension subtypes (Value 152) RFC 5454
Extension Subtypes Extensions to Mobile IP Registration Messages RFC 5944, RFC 6098
Generalized Link Layer Address Registration Extension Subtypes and Generalized Link Layer Address Advertisement Extension Subtypes RFC 4881
IPv6 Prefix Reply Extension Codes RFC 5454
Message String Extension (Value 145) RFC 4917
Mobile IP Extensions for ICMP Router Discovery messages RFC 5944
Mobile IP Message Types RFC 5944
Mobile Network Acknowledgement Extension RFC 5177
Mobile Router Route Optimization Capability Extension (Value 153) RFC 6521
PMIPv4 Device ID Types RFC 5563
PMIPv4 Non-skippable Extension (Value 47) RFC 5563
PMIPv4 Per-Node Authentication Method Types RFC 5563
PMIPv4 Skippable Extension (Value 147) RFC 5563
PMIPv4 Subscriber ID Types RFC 5563
Replay Method Identifier RFC 3957
Route Optimization Data Extension (Value 50) RFC 6521
Route Optimization Extension (Value 49) RFC 6521
Security Parameter Index (SPI) Values for the Mobile IP Reserved SPIs RFC 4721
Mobile IPv6 Access Network Information (ANI) Sub-Option Type Values RFC 6757
Access Technology Type Option Type Values RFC 5213
Binding Acknowledgment Flags RFC 5213
Binding Revocation Acknowledgement Status Codes RFC 5846
Binding Revocation Type RFC 5846
Binding Update Flags RFC 5213
DSMIP6-TLS Packet Types Registry RFC 6618
Dual Stack MIPv6 (DSMIPv6) IPv4 Home Address Option Status Codes RFC 5555
Enumerating Algorithms RFC 4285
Flow Binding Acknowledgement Status Codes RFC 7109
Flow Binding Action Values RFC 7109
Flow Binding Indication Triggers RFC 7109
Flow Binding Type RFC 7109
Flow Identification Mobility Option Status Codes RFC 6089
Flow Identification Sub-Options RFC 6089
Handoff Indicator Option Type Values RFC 5213
Handover Acknowledge Flags RFC 5949
Handover Acknowledge Status Codes RFC 5949
Handover Initiate Flags RFC 5949
Handover Initiate Status Codes RFC 5949
IPv4 DHCP Support Mode Flags RFC 5844
IPv4 Home Address Reply Status Codes RFC 5844
LMA-Controlled MAG Parameters Sub-Option Type Values RFC 8127
Mobile Node Group Identifier Type Registry RFC 6602
Mobile Node Identifier Option Subtypes RFC 4283
Mobility Header Types - for the MH Type field in the Mobility Header RFC 6275
Mobility Options RFC 6275
Operator-Identifier Type Registry RFC 6757
Pseudo Home Address Acknowledgement Status Codes RFC 5726
Quality-of-Service Attribute Registry RFC 7222
Revocation Trigger Values RFC 5846
Status Codes RFC 6275, RFC 5213
Status Codes (DNS Update Mobility Option) RFC 5026
Subtype Field of the MN-HA and MN-AAA Authentication Mobility Options RFC 4285
Traffic Selector Format RFC 6089
Update Notification Acknowledgement Status Registry RFC 7077
Update Notification Reasons Registry RFC 7077
Multi-threaded Routing Toolkit (MRT) Subtype Codes RFC 6396
Type Codes RFC 6396



Multicast Acquisition Multicast Acquisition Method Registry RFC 6332
Multicast Acquisition Report Block TLV Space Registry RFC 6332
Multicast Acquisition Status Code Space Registry RFC 6332
Multicast Address Dynamic Client Allocation Protocol (MADCAP) Parameters MADCAP Error Codes RFC 2730
MADCAP Feature Codes RFC 2730
MADCAP Lease Identifier Types RFC 2730
MADCAP Message Types RFC 2730
MADCAP Options RFC 2730
Multicast Address-Set Claim (MASC) Parameters MASC Message Types RFC 2909
MASC NOTIFICATION Message Error Codes and Subcodes RFC 2909
MASC OPEN Message Optional Parameter Types RFC 2909
MASC UPDATE Message Attribute Types RFC 2909
MASC UPDATE Message Optional Parameter Types (128-255) RFC 2909
Notification Error Subcodes RFC 2909
Multicast Ping Protocol Parameters Multicast Ping Protocol Message Types RFC 6450
Multicast Ping Protocol Option Types RFC 6450
Multicast Source Discovery Protocol (MSDP) TLV Values Registry MSDP TLV Values RFC 3618

Multimedia Internet KEYing (MIKEY) Payload Name Spaces Cert Hash Payload Field Names RFC 3830, RFC 6309
Common Header Payload Field Names RFC 3830, RFC 6309
DH Data Payload Field Names RFC 3830, RFC 6309
ECC Curve RFC 6267
Envelope Data Payload Field Names RFC 3830, RFC 6309
Error Payload Name Spaces RFC 3830, RFC 6309
General Extensions Payload Field Names RFC 3830, RFC 6309
ID Payload and Certificate Field Names RFC 3830, RFC 6309
ID Role RFC 6043
ID Scheme RFC 6509
Key Data Payload Field Names RFC 3830, RFC 6309
Key Data Transport Payload Field Names RFC 3830, RFC 6309
MIKEY Security Protocol Parameters RFC 3830, RFC 6309
RAND Role RFC 6043
SAKKE params RFC 6509
Security Policy Payload Field Names RFC 3830, RFC 6309
Signature Payload Field Names RFC 3830, RFC 6309
SK sub-payload RFC 6267
Ticket Type RFC 6043
Timestamp Payload Field Names RFC 3830, RFC 6309
TS Role RFC 6043
Multiplexed Application Substrate over QUIC Encryption (MASQUE) HTTP Capsule Types RFC 9297






HTTP Capsule Types RFC 9297 MASQUE URI Suffixes RFC 9484
Multiprotocol Label Switching Architecture (MPLS) Adjacency Type in the IGP-Adjacency Segment ID RFC 8287

Base Special-Purpose MPLS Label Values RFC 3032, RFC 7274, RFC 9017
CC/CV MEP-ID TLV Registry RFC 6428, RFC 7214
Downstream Detailed Mapping Address Type Registry RFC 6426, RFC 7555, RFC 8029
DS Flags RFC 8029
Extended Special-Purpose MPLS Label Values RFC 7274
G-ACh Advertisement Protocol Application Registry RFC 7212, RFC 7214
G-ACh Advertisement Protocol: Ethernet Interface Parameters RFC 7213, RFC 7214
G-ACh Advertisement Protocol: GAP TLV Objects (Application ID 0) RFC 7212, RFC 7214
Global Flags RFC 6425
Information Field and Protocol Identifier in the Q.2941 Generic Identifier RFC 3033
Interface and Label Stack and Detailed Interface and Label Stack Address Types RFC 8029, RFC 8611

Interface Index Flags RFC 8611
Loss/Delay Measurement Control Code: Query Codes RFC 6374, RFC 7214
Loss/Delay Measurement Control Code: Response Codes RFC 6374, RFC 7214
LSR Capability Flags RFC 8611
Measurement Timestamp Type RFC 6374, RFC 7214
Message Types RFC 8029, RFC 9041



MPLS Fault OAM Flag Registry RFC 6427, RFC 7214
MPLS Fault OAM Message Type Registry RFC 6427, RFC 7214
MPLS Fault OAM TLV Registry RFC 6427, RFC 7214


MPLS Generalized Associated Channel (G-ACh) Types (including Pseudowire Associated Channel Types) RFC 4385, RFC 5586, RFC 7026, RFC 7214
MPLS Loss/Delay Measurement TLV Object RFC 6374, RFC 7214
MPLS Multi-Topology Identifiers RFC 7307, RFC 8320
MPLS OAM Function Flags RFC 7759
MPLS PSC Capability Flag Registry RFC 7271
MPLS PSC Request Registry RFC 6378, RFC 7214
MPLS PSC TLV Registry RFC 6378, RFC 7214
MPLS RPS Request Code Registry RFC 8227
MPLS RTM TLV Registry RFC 8169

MPLS-TP DHC TLVs RFC 8185
Multipath Types RFC 8029


Next Hop Address Type Registry RFC 7555
Pad Types RFC 8029

Protocol in Label Stack Sub-TLV of Downstream Detailed Mapping TLV RFC 8287

Protocol in the Segment ID Sub-TLV RFC 8287

Proxy Flags RFC 7555
Q.2957 User-to-user Signaling for the Internet Protocol RFC 3033
Reply Modes RFC 8029, RFC 9041



Reply Path Return Codes RFC 7110

Return Codes RFC 8029, RFC 9041



Return Path Sub-TLV Types RFC 9779



Segment ID Sub-TLV Flags RFC 9716
TLVs RFC 8029, RFC 9041







Multipurpose Internet Mail Extensions (MIME) and Media Types Access Types RFC 4289
CMS Encapsulating Content Types RFC 7193
CMS Inner Content Types RFC 7193
Event Code Registry RFC 4733
Markdown Variants RFC 7763
Media Types RFC 6838, RFC 4855
MIME to X.400 Table RFC 1494
MIME to X.400 Table - Extended Body Part RFC 1494
Parameter Values for the smime-type Parameter RFC 7114
Provisional Standard Media Type Registry RFC 6838
Report Types RFC 8460
Standards-related organizations that have registered Media Types in the Standards Tree RFC 6838
Structured Syntax Suffixes RFC 6838
Sub-Parameter Registry for application/aif+cbor and application/aif+json RFC 9237
Sub-parameter Registry for application/mbox RFC 4155
Sub-Parameter Registry for audio/rtp-midi RFC 6295
Sub-Parameter Registry for mode=rtp-midi of audio/mpeg4-generic RFC 6295
Sub-Parameter Registry for video/raw RFC 4175
Sub-Parameter Registry video/mpeg4-generic, audio/mpeg4-generic and application/mpeg4-generic RFC 3640
text/directory Parameters RFC 2425
text/directory Profiles RFC 2425
text/directory Types RFC 2425
Top-Level Media Types RFC 9694
X.400 to MIME Table - Basic Body Parts RFC 1494
N Named Information Named Information Hash Algorithm Registry RFC 6920
Named Information URI Parameter Definitions RFC 6920
Namespaces for IP over IEEE 1394 CSR Protocol Identifiers RFC 2734
MCAP (Multicast Channel Allocation Protocol) Parameters RFC 2734, RFC 3146
Negative-ACKnowledgment (NACK) Oriented Reliable Multicast (NORM) Parameters NORM Header Extension Types RFC 5740
NORM Stream Control Codes RFC 5740
NORM_CMD Message Sub-types RFC 5740
Netnews Parameters Netnews Cancel-Lock Hash Algorithms RFC 8315
Network Configuration Protocol (NETCONF) Capability URNs Capability URNs RFC 6241, RFC 7803
Network File System version 4 (NFSv4) NFSv4 ${ietf.org:CPU_ARCH} Values RFC 8881
NFSv4 ${ietf.org:OS_TYPE} Values RFC 8881
NFSv4 Device ID Notifications RFC 8881
NFSv4 Named Attribute Definitions RFC 8881, RFC 7530
NFSv4 Path Variables RFC 8881


NFSv4 Recallable Object Types RFC 8881
pNFS Layout Types RFC 8881
Network Layer Protocol Identifiers (NLPIDs) of Interest NLPIDs of Interest RFC 6328
Network News Transfer Protocol (NNTP) Parameters NNTP Capability Labels RFC 3977
NNTP Compression Algorithms RFC 8054
Network Service Header (NSH) Parameters Flow ID Context Types RFC 9263
Forwarding Context Types RFC 9263
NSH Base Header Bits RFC 8300
NSH IETF-Assigned Optional Variable-Length Metadata Types RFC 8300
NSH MD Class RFC 8300


NSH MD Types RFC 8300
NSH Next Protocol RFC 8300
NSH Version RFC 8300
Network Time Protocol (NTP) Parameters NTP Extension Field Types RFC 5905, RFC 5906, RFC 9748
NTP Kiss-o'-Death Codes RFC 5905, RFC 9748
NTP Reference Identifier Codes RFC 5905, RFC 9748
Network Time Security (NTS) Network Time Security Error Codes RFC 8915



Network Time Security Key Establishment Record Types RFC 8915



Network Time Security Next Protocols RFC 8915



Network Time Security Warning Codes RFC 8915



Network Virtualization Overlay (NVO3) Geneve Option Class RFC 8926


Next Hop Resolution Protocol (NHRP) Types NHRP Extension Types RFC 2332
NHRP Packet Types RFC 2332
Novell Service Advisor Protocol (SAP) Numbers - Novell Object Types Novell Object Type
NSIS Signaling Layer Protocol (NSLP) Parameters AUTH_ENT_ID (X-Type 1) SubType values RFC 5981
DEST_ADDR (X-Type 4) SubType values RFC 5981
END_TIME (X-Type 6) SubType values RFC 5981
Informational Error Codes RFC 5974


NATFW NSLP Header Flags RFC 5973
NATFW NSLP Message Types RFC 5973
NATFW Response Codes RFC 5973
NSLP Error Classes RFC 5974, RFC 5973
NSLP Message Objects RFC 5974


Permanent Failure Codes RFC 5974


Protocol Error Codes RFC 5974


QoS Model Error Codes RFC 5975
QoS NSLP Binding Codes RFC 5974
QoS NSLP Error Source Identifiers RFC 5974
QoS NSLP Message Types RFC 5974
SESSION_AUTH X-Types RFC 5981
SOURCE_ADDR (X-Type 3) SubType values RFC 5981
START_TIME (X-Type 5) SubType values RFC 5981
Success Error Codes RFC 5974


Transient Failure Codes RFC 5974


O OAuth Parameters OAuth Access Token Types RFC 6749, RFC 8414
OAuth Authorization Endpoint Response Types RFC 6749
OAuth Authorization Server Metadata RFC 8414
OAuth Dynamic Client Registration Metadata RFC 7591
OAuth Extensions Error Registry RFC 6749
OAuth Parameters RFC 6749
OAuth Protected Resource Metadata RFC 9728
OAuth Token Endpoint Authentication Methods RFC 7591, RFC 8414
OAuth Token Introspection Response RFC 7662
OAuth Token Type Hints RFC 7009
OAuth URI RFC 6755
PKCE Code Challenge Methods RFC 7636
One Time Password (OTP) Parameters Algorithm Identifier RFC 2289
Extension Set Identifiers RFC 2243
One-Way Active Measurement Protocol (OWAMP) Parameters OWAMP-Control Command Numbers RFC 7718
OWAMP-Modes RFC 7718
Open Pluggable Edge Services (OPES) OPES Callout Protocol (OCP) Core RFC 4037
Open Shortest Path First (OSPF) Bandwidth Constraints Model Identifiers RFC 4124


Open Shortest Path First (OSPF) Authentication Codes Authentication Codes RFC 2328, RFC 6549
Open Shortest Path First (OSPF) Link Local Signalling (LLS) - Type/Length/Value Identifiers (TLV) Link Local Signalling TLV Identifiers (LLS Types) RFC 5613
LLS Type 1 Extended Options and Flags RFC 5613
Open Shortest Path First (OSPF) Multi-Topology Routing Multi-Topology ID Values RFC 4915



Open Shortest Path First (OSPF) Opaque Link-State Advertisements (LSA) Option Types Opaque Link-State Advertisements (LSA) Option Types RFC 5250

OSPFv2 TTZ LSA TLVs RFC 8099
Open Shortest Path First (OSPF) Parameters OSPF Dynamic Flooding LSA TLVs Internet Draft draft-ietf-lsr-dynamic-flooding-18
OSPF Flex-Algorithm Prefix Metric Bits RFC 9350
OSPF Flexible Algorithm Definition TLV Sub-TLVs RFC 9350
OSPF Link Attributes Sub-TLV Bit Values Internet Draft draft-ietf-lsr-dynamic-flooding-18
OSPF Router Functional Capability Bits RFC 7770
OSPF Router Information (RI) TLVs RFC 7770


OSPF Router Informational Capability Bits RFC 7770
OSPF Tunnel Parameter Sub-TLVs RFC 9013

Open Shortest Path First (OSPF) Signature Algorithms Signature Algorithms RFC 2154
Open Shortest Path First (OSPF) Traffic Engineering TLVs RFC 4973 Experimental TE LSA Types RFC 4973
RFC 4973 Experimental TE TLVs RFC 4973
Top Level Types in TE LSAs RFC 3630
Types for sub-TLVs of Optical Node Property (Value 6) RFC 7688
Types for sub-TLVs of OTN-TDM SCSI (Switching Capability Specific Information) RFC 7138
Types for sub-TLVs of Router Address TLV (Value 1) RFC 6827
Types for sub-TLVs of TE Link TLV (Value 2) RFC 3630
Types for sub-TLVs of TE Node Attribute TLV (Value 5) RFC 5786
Types for sub-TLVs of WSON-LSC SCSI (Switching Capability Specific Information) RFC 7688
Open Shortest Path First v2 (OSPFv2) Parameters IP Algorithm Prefix Reachability Sub-TLV Flags RFC 9502
OSPF Packet Type (both v2 and v3) RFC 2328, RFC 4940

OSPFv2 Extended Inter-Area ASBR Sub-TLVs RFC 9350
OSPFv2 Extended Inter-Area ASBR TLVs RFC 9350
OSPFv2 Extended Link Opaque LSA TLVs RFC 7684
OSPFv2 Extended Link TLV Sub-TLVs RFC 7684, RFC 9356
OSPFv2 Extended Prefix Opaque LSA TLVs RFC 7684
OSPFv2 Extended Prefix TLV Flags RFC 7684
OSPFv2 Extended Prefix TLV Sub-TLVs RFC 7684
OSPFv2 Grace LSA Top Level TLV RFC 4940



OSPFv2 Instance IDs RFC 6549
OSPFv2 Link State (LS) Type RFC 2328, RFC 4940

OSPFv2 Options Registry (8 bits) RFC 4940
OSPFv2 Prefix Extended Flags RFC 9792
OSPFv2 Router LSA Link Type (Value 1) RFC 4940

OSPFv2 Router Properties Registry RFC 4940
Open Shortest Path First v3 (OSPFv3) Authentication Trailer Options OSPFv3 Authentication Types RFC 7166
Open Shortest Path First v3 (OSPFv3) Parameters LD Options RFC 5820
OSPFv3 Autoconfiguration (AC) LSA TLVs RFC 7503
OSPFv3 Extended-LSA Sub-TLVs RFC 8362, RFC 9356

OSPFv3 Extended-LSA TLVs RFC 8362

OSPFv3 Instance ID Address Family Values RFC 5838, RFC 6969
OSPFv3 LSA Function Codes RFC 7770




OSPFv3 Options (24 bits) RFC 4940
OSPFv3 Prefix Extended Flags RFC 9792
OSPFv3 Prefix Options (8 bits) RFC 4940
OSPFv3 Router LSA Link Types RFC 4940

OSPFv3 Router Properties Registry RFC 5340
OSPFv3 SRv6 Adjacency SID Sub-TLV Flags RFC 9513
OSPFv3 SRv6 Capabilities TLV Flags RFC 9513
OSPFv3 SRv6 End SID Sub-TLV Flags RFC 9513
OSPFv3 SRv6 Locator LSA Sub-TLVs RFC 9513

OSPFv3 SRv6 Locator LSA TLVs RFC 9513

Open Systems Interconnection (OSI) Network Service Access Point Addresses (NSAPA) Internet Code Point Registry OSI NSAPA Internet Code Points for AFI 35 RFC 4548
OpenPGP OpenPGP AEAD Algorithms RFC 9580
OpenPGP Armor Header Keys RFC 9580
OpenPGP Armor Header Lines RFC 9580
OpenPGP Compression Algorithms RFC 9580
OpenPGP ECC Curve OIDs and Usage RFC 9580
OpenPGP ECC Curve-Specific Wire Formats RFC 9580
OpenPGP ECDH KDF and KEK Parameters RFC 9580
OpenPGP Elliptic Curve Point Wire Formats RFC 9580
OpenPGP Elliptic Curve Scalar Encodings RFC 9580
OpenPGP Encrypted Message Packet Versions RFC 9580
OpenPGP Features Flags RFC 9580
OpenPGP Hash Algorithm Identifiers for RSA Signatures' Use of EMSA-PKCS1-v1_5 Padding RFC 9580
OpenPGP Hash Algorithms RFC 9580
OpenPGP Image Attribute Encoding Format RFC 9580
OpenPGP Image Attribute Versions RFC 9580
OpenPGP Key and Signature Versions RFC 9580
OpenPGP Key Flags RFC 9580
OpenPGP Key IDs and Fingerprints RFC 9580
OpenPGP Key Server Preference Flags RFC 9580
OpenPGP New Packet Versions (OBSOLETE) RFC 9580
OpenPGP Packet Types RFC 9580
OpenPGP Public Key Algorithms RFC 9580
OpenPGP Reason for Revocation (Revocation Octet) RFC 9580
OpenPGP Secret Key Encryption (S2K Usage Octet) RFC 9580
OpenPGP Signature Notation Data Subpacket Notation Flags RFC 9580
OpenPGP Signature Notation Data Subpacket Types RFC 9580
OpenPGP Signature Subpacket Types RFC 9580
OpenPGP Signature Types RFC 9580
OpenPGP String-to-Key (S2K) Types RFC 9580
OpenPGP Symmetric Key Algorithms RFC 9580
OpenPGP User Attribute Subpacket Types RFC 9580
Operating System Names Operating System Names RFC 952
OS Specific Fact Names RFC 3659
OS Specific Filetypes RFC 3659
Optimized Link State Routing (OLSR) Protocol Message Types OLSR Protocol Message Types RFC 3626

Opus Channel Mapping Families Opus Channel Mapping Families RFC 7845, RFC 8486
OSPF Database Description (DD) Packet Flags Database Description (DD) Packet Flags RFC 5838
P Packet Sampling (PSAMP) Parameters PSAMP selectorAlgorithm Identifiers RFC 5476
PAL Package Types PAL Package Types RFC 8295
Path Computation Element Protocol (PCEP) Numbers ASSOCIATION Flag Field RFC 8697, RFC 9756
ASSOCIATION Type Field RFC 8697, RFC 9756
AUTO-BANDWIDTH-ATTRIBUTES Sub-TLV Types RFC 8733

AUTO-BANDWIDTH-CAPABILITY TLV Flag Field RFC 8733, RFC 9756
Bidirectional LSP Association Group TLV Flag Field RFC 9059, RFC 9756
BPI Object Error Code Field RFC 9757
BPI Object Flag Field RFC 9757
BPI Object Status Code Field RFC 9757
BU Object Type Field RFC 8233, RFC 9756
CCI Object Flag Field for MPLS Label RFC 9050, RFC 9756
CCI Object Flag Field for Native IP RFC 9757
CLOSE Object Flag Field RFC 5440
CLOSE Object Reason Field RFC 5440
DISJOINTNESS-CONFIGURATION TLV Flag Field RFC 8800, RFC 9756
Domain-ID TLV Domain Type RFC 8685
FLOWSPEC Object Flag Field RFC 9168, RFC 9756
Generalized Endpoint Types RFC 8779, RFC 9756

GMPLS-CAPABILITY TLV Flag Field RFC 8779, RFC 9756
H-PCE-CAPABILITY TLV Flag Field RFC 8685, RFC 9756
H-PCE-FLAG TLV Flag Field RFC 8685, RFC 9756
Inter-Layer Object Path Property Bits RFC 8282
IRO Subobjects RFC 5521
LOAD-BALANCING Object Flag Field RFC 5440
LSP Exclusion Subobject Flag Field RFC 9504, RFC 9756
LSP Object Flag Field RFC 8231, RFC 9756
LSP-ERROR-CODE TLV Error Code Field RFC 8231, RFC 9756
LSP-EXTENDED-FLAG TLV Flag Field RFC 9357, RFC 9756
LSPA Object Flag Field RFC 5440
METRIC Object Flag Field RFC 5440
METRIC Object T Field RFC 5440
MONITORING Object Flag Field RFC 5886
NO-PATH Object Flag Field RFC 5440
NO-PATH Object NI Field RFC 5440
NO-PATH-VECTOR TLV Flag Field RFC 5440
Notification Object RFC 5440
Notification Object Flag Field RFC 5440
Objective Function RFC 5541


Open Object Flag Field RFC 5440
OVERLOAD Object Flag field RFC 5886
Path Protection Association Group TLV Flag Field RFC 8745, RFC 9756
PATH-KEY Subobjects RFC 5520
PATH-SETUP-TYPE-CAPABILITY Sub-TLV Type Indicators RFC 8664, RFC 9756
PCECC-CAPABILITY sub-TLV RFC 9050, RFC 9756
PCEP Flow Specification TLV Type Indicators RFC 9168



PCEP Message Common Header Flag Field RFC 5440
PCEP Messages RFC 5440

PCEP Objects RFC 5440

PCEP Path Setup Types RFC 8408
PCEP SR-ERO NAI Types RFC 8664
PCEP SRv6-ERO NAI Types RFC 9603
PCEP TLV Type Indicators RFC 5440

PCEP-ERROR Object Error Types and Values RFC 5440, RFC 9756

PCEP-ERROR Object Flag Field RFC 5440
PROC-TIME Object Flag Field RFC 5886
RP Object Flag Field RFC 5440
S2LS Object Flag Field RFC 8623, RFC 9756
SCHED-PD-LSP-ATTRIBUTE TLV Opt Field RFC 8934, RFC 9756
Schedule TLVs Flag Field RFC 8934, RFC 9756
SR Capability Flag Field RFC 8664, RFC 9756
SR Policy Capability TLV Flag Field Internet Draft draft-ietf-pce-segment-routing-policy-cp-27
SR Policy Invalidation Configuration Flags Internet Draft draft-ietf-pce-segment-routing-policy-cp-27
SR Policy Invalidation Operational Flags Internet Draft draft-ietf-pce-segment-routing-policy-cp-27
SR-ERO Flag Field RFC 8664, RFC 9756
SRP Object Flag Field RFC 8281, RFC 8786, RFC 9756
SRv6 Capability Flag Field RFC 9603, RFC 9756
SRv6-ERO Flag Field RFC 9603, RFC 9756
STATEFUL-PCE-CAPABILITY TLV Flag Field RFC 8231, RFC 9756
SVEC Object Flag Field RFC 5440
TE-PATH-BINDING TLV BT Field RFC 9604, RFC 9756
TE-PATH-BINDING TLV Flag Field RFC 9604, RFC 9756
WA Object Flag Field RFC 8780, RFC 9756
Wavelength Allocation TLV Flag Field RFC 8780, RFC 9756
Wavelength Restriction TLV Action Values RFC 8780, RFC 9756
XRO Flag Field RFC 5521
XRO Subobjects RFC 5521
Peer-to-Peer Streaming Peer Protocol (PPSPP) PPSP Peer Protocol Chunk Addressing Method Registry RFC 7574
PPSP Peer Protocol Content Integrity Protection Method Registry RFC 7574
PPSP Peer Protocol Merkle Hash Tree Function Registry RFC 7574
PPSP Peer Protocol Message Type Registry RFC 7574
PPSP Peer Protocol Option Registry RFC 7574
PPSP Peer Protocol Version Number Registry RFC 7574
Peer-to-Peer Streaming Tracker Protocol (PPSTP) PPSTP Error Code Registry RFC 7846
PPSTP Request Type Registry RFC 7846
PPSTP Version Number Registry RFC 7846
Per Hop Behavior Identification Codes Per Hop Behavior Identification Codes RFC 3140
Performance Metrics Performance Metric Name Elements - Method RFC 8911
Performance Metric Name Elements - Metric Type RFC 8911
Performance Metric Name Elements - Output RFC 8911
Performance Metric Name Elements - Spec RFC 8911
Performance Metric Name Elements - SubTypeMethod RFC 8911
Performance Metric Name Elements - Units RFC 8911
Performance Metrics Registry RFC 8911
Permanent IPv6 Multicast Group Identifiers Group Identifier Values RFC 3307
Point-to-Point (PPP) Protocol Field Assignments IP Header Compression Configuration Option Suboption Types RFC 3544
IP-Compression-Protocol Types RFC 1332
IPv6-Compression-Protocol Types RFC 5172
NetBIOS Frames Control Protocol (NBFCP) Configuration Options RFC 2097
PPP (IPXCP) Configuration Options RFC 1552
PPP ATCP Configuration Option Types RFC 1378
PPP Authentication Algorithms RFC 1994
PPP Banyan Vines Configuration Option Types RFC 1763
PPP Bridging Configuration Option Types RFC 3518, RFC 3818
PPP Bridging MAC Types RFC 3518, RFC 3818
PPP Bridging Spanning Tree RFC 3518, RFC 3818
PPP CCP Configuration Option Types RFC 1962, RFC 3818
PPP DLL Protocol Numbers RFC 1661, RFC 3818



PPP EAP Request/Response Types RFC 3748
PPP ECP Configuration Option Types RFC 1968
PPP IPCP Configuration Option Types RFC 1332, RFC 3818
PPP IPv6CP Configuration Options RFC 5072, RFC 3818
PPP LCP Callback Operation Fields RFC 1570, RFC 3818
PPP LCP Configuration Option Types RFC 1661, RFC 3818
PPP LCP FCS-Alternatives RFC 1570, RFC 3818
PPP Link Control Protocol (LCP) and Internet Protocol Control Protocol (IPCP) Codes RFC 1661, RFC 3818
PPP Multilink Endpoint Discriminator Class RFC 1990, RFC 3818
PPP OSINLCP Configuration Option Types RFC 1377
PPP Over Ethernet Versions RFC 2516, RFC 8822
PPP SDCP Configuration Options RFC 1963
PPP TNCP Configuration Option Types RFC 6361
PPP Vendor Specific OUI Options RFC 5342
ROHC Configuration Option Suboption Identifier Values RFC 3241 Point-to-Point Over Ethernet (PPPoE) Parameters PPPoE Active Discovery Code fields (8-bit values) RFC 4937
PPPoE TAG Values (16-bit values) RFC 4937
Port Control Protocol (PCP) Parameters PCP Opcodes RFC 6887


PCP Options RFC 6887


PCP Result Codes RFC 6887


Portable Symmetric Key Container (PSKC) Algorithm URI Registry and Related PSKC Profiles RFC 6030
Key Usage Registry RFC 6030
PSKC Version Registry RFC 6030
Post Office Protocol version 3 (POP3) Extension Mechanism POP3 Capabilities RFC 2449
POP3 Response Codes RFC 2449
Post-Stack First Nibble Post-Stack First Nibble Internet Draft draft-ietf-mpls-1stnibble-13
Posture Attribute (PA) Protocol Compatible with Trusted Network Connect (TNC) Parameters PA-TNC Attribute Types RFC 5792
PA-TNC Error Codes RFC 5792
PA-TNC Remediation Parameters Types RFC 5792
Software Data Model Types RFC 8412
Posture Broker (PB) Protocol Compatible with Trusted Network Connect (TNC) Parameters PA Subtypes RFC 5793
PB-TNC Error Codes RFC 5793
PB-TNC Message Types RFC 5793
PB-TNC Remediation Parameters Types RFC 5793
Power State Sets DMTF Power State Set RFC 7326
EMAN Power State Set RFC 7326
IEEE1621 Power State Set RFC 7326
PRECIS Derived Property Value PRECIS Derived Property Value RFC 8264, RFC 5892
Preparation and Comparison of Internationalized Strings (PRECIS) Parameters PRECIS Base Classes RFC 8264
PRECIS Profiles RFC 8264
Presence SRV Protocol Label Registry Presence SRV Protocol Labels RFC 3861
Printer MIB Interpreters Language Families - OBSOLETE Printer MIB Interpreters Language Families - OBSOLETE RFC 3805
Privacy Enhanced RTP Conferencing (PERC) Datagram Transport Layer Security (DTLS) Tunnel Protocol Message Types for Privacy Enhanced Conferencing RFC 9185
Privacy Pass Privacy Pass Token Types RFC 9577
Probabilistic Routing Protocol using History of Encounters and Transitivity (PRoPHET) Bundle Offer and Response B Flags RFC 6693
Bundle Offer and Response TLV Flags RFC 6693
DTN Routing Protocol Number RFC 6693
Error TLV Flags RFC 6693
Hello TLV Flags 0, 1, 2 RFC 6693
Hello TLV Flags 3-7 RFC 6693
PRoPHET Codes for Failure RFC 6693
PRoPHET Codes for Success RFC 6693
PRoPHET Header Flags RFC 6693
PRoPHET Protocol Version RFC 6693
PRoPHET Result Field RFC 6693
PRoPHET TLV Type RFC 6693
RIB Dictionary TLV Flags RFC 6693
RIB Flags RFC 6693
RIB TLV Flags RFC 6693
Profile URIs Profile URIs RFC 7284
Pronet 80 Type Numbers Pronet 80 Type Numbers
Protocol for Carrying Authentication for Network Access (PANA) Parameters AVP Codes RFC 5191, RFC 6786
AVP Flags RFC 5191, RFC 5872
Message Flags RFC 5191, RFC 5872
Message Types RFC 5191, RFC 5872

Protocol Independent Multicast (PIM) Parameters PIM Address Encoding Types RFC 5384, RFC 7761, RFC 7887
PIM Address Family RFC 3973, RFC 7761
PIM Designated Router Load-Balancing Hash Algorithms RFC 8775
PIM Flooding Mechanism Message Types RFC 8364
PIM Join Attribute Types RFC 5384
PIM Join/Prune Transport Types RFC 8059
PIM Message Types RFC 9436
PIM-Hello Options RFC 7761, RFC 3973
PORT Message Types RFC 6559
PORT Option Types RFC 6559
Protocol Numbers Assigned Internet Protocol Numbers RFC 5237, RFC 7045
Protocol to Access White-Space (PAWS) PAWS Error Code Registry RFC 7545
PAWS Parameters Registry RFC 7545
PAWS Ruleset ID Registry RFC 7545
Provisioning Domains (PvDs) Additional Information PvD Keys RFC 8801
PvD Option Flags RFC 8801
PvD Split DNS Claims RFC 9704
Proxy Certificate Policy Languages Proxy Certificate Policy Languages RFC 3820
Pseudowire Name Spaces (PWE3) Associated Channel Header TLV Registry (DELETED) RFC 5586, RFC 7026 Attachment Group Identifier (AGI) Type Registry RFC 4446




Attachment Individual Identifier Type Registry RFC 4446




CC/CV MEP-ID TLV Registry RFC 6428, RFC 7214 G-ACh Advertisement Protocol Application Registry RFC 7212, RFC 7214 G-ACh Advertisement Protocol TLV Registry RFC 7212, RFC 7214 G-ACh Advertisement Protocol: Ethernet Interface Parameters RFC 7213, RFC 7214 Header Compression Over MPLS PW Control Word Packet Type RFC 4901
ICC RG Parameter Types RFC 7275





L2VPN PE Stack Capabilities RFC 6575
MPLS Pseudowire Types Registry RFC 4446




MPLS VCCV Connectivity Verification (CV) Types RFC 5085
MPLS VCCV Control Channel (CC) Types RFC 5085
Pseudowire Associated Channel Types RFC 4385, RFC 5586, RFC 7026, RFC 7214 Pseudowire Interface Parameters Sub-TLV type Registry RFC 4446




Pseudowire Status Codes Registry RFC 4446
Pseudowire Switching Point PE sub-TLV Type RFC 6073





PSN Tunnel Sub-TLV Name Space RFC 7965
PW Generic Protocol Flags RFC 6478
PW Status Refresh Reduction Configuration Message Sub-TLVs RFC 8237





PW Status Refresh Reduction Control Messages RFC 8237





PW Status Refresh Reduction Message Flags RFC 8237
PW Status Refresh Reduction Notification Codes RFC 8237





VCCV Extended CV Types RFC 7189
PT-EAP: Posture Transport (PT) Protocol For EAP Tunnel Methods PT-EAP Versions RFC 7171
Public Data Network Numbers Public Data Network Numbers RFC 1356
Public Key Infrastructure using X.509 (PKIX) Parameters Certification Authority Restriction Flags RFC 8659
Certification Authority Restriction Properties RFC 8659
PKIX SRV Protocol Labels RFC 4386
Public Notary Transparency Error Types RFC 9162
Hash Algorithms RFC 9162



Log Artifact Extensions RFC 9162



Log IDs RFC 9162
Signature Algorithms RFC 9162




VersionedTransTypes RFC 9162



Q QoS NSIS Signal Layering Protocol (NSLP) QSPEC Parameters Excess Treatment Parameter RFC 5975
Extent of Restoration Field RFC 5976
Object Types RFC 5975
Parameter ID RFC 5975
QSPEC Procedure RFC 5975
QSPEC Type RFC 5975
QSPEC Version RFC 5975
Restoration Priority Field RFC 5976
Time to Restore Field RFC 5976
Y.1541 QoS Class Parameter RFC 5975
Y.2171 Admission Priority Parameter RFC 5975
QUIC QUIC Frame Types RFC 9000





QUIC Transport Error Codes RFC 9000





QUIC Transport Parameters RFC 9000






QUIC Versions RFC 9000





R Radius Types Code Values for RADIUS Attribute 241.1, Frag-Status RFC 7499
Data Type RFC 8044
Entity Types (Attribute 127, Location-Information) RFC 5580
Location Profiles (Attribute 127, Location-Information) RFC 5580
Location-Capable Attribute (Attribute 131) RFC 5580
Operator Namespace Identifier for Attribute 126 RFC 5580
Option Codes Permitted in the Softwire46-Priority Attribute RFC 8658
Privacy Flags (Attribute 129, Basic-Location-Policy-Rules) RFC 5580
RADIUS Attribute Types RFC 3575, RFC 6929, RFC 8044





RADIUS IP Port Configuration and Reporting TLVs RFC 8045
RADIUS Packet Type Codes RFC 3575
RADIUS Softwire46 Configuration and Multicast Attributes RFC 8658
Requested-Location-Info Attribute (Attribute 132) RFC 5580
Values for RADIUS Attribute 10, Framed-Routing RFC 2865, RFC 3575
Values for RADIUS Attribute 101, Error-Cause Attribute RFC 3575, RFC 5176, RFC 7930
Values for RADIUS Attribute 13, Framed-Compression RFC 2865, RFC 3575
Values for RADIUS Attribute 133, Framed-Management-Protocol Attribute RFC 5607
Values for RADIUS Attribute 134, Management-Transport-Protection Attribute RFC 5607
Values for RADIUS Attribute 15, Login-Service RFC 2865, RFC 3575
Values for RADIUS Attribute 29, Termination-Action RFC 2865, RFC 3575
Values for RADIUS Attribute 40, Acct-Status-Type RFC 2866, RFC 3575
Values for RADIUS Attribute 45, Acct-Authentic RFC 2866, RFC 3575
Values for RADIUS Attribute 49, Acct-Terminate-Cause RFC 2866, RFC 3575
Values for RADIUS Attribute 6, Service-Type RFC 2865, RFC 3575
Values for RADIUS Attribute 61, NAS-Port-Type RFC 2865, RFC 3575
Values for RADIUS Attribute 64, Tunnel-Type RFC 3575
Values for RADIUS Attribute 65, Tunnel-Medium-Type RFC 3575
Values for RADIUS Attribute 7, Framed-Protocol RFC 2865, RFC 3575
Values for RADIUS Attribute 72, ARAP-Zone-Access RFC 2869, RFC 3575
Values for RADIUS Attribute 76, Prompt RFC 2869, RFC 3575
Real Time Streaming Protocol (RTSP)/1.0 Parameters RTSP/1.0 Headers RFC 2326
RTSP/1.0 Methods RFC 2326
RTSP/1.0 Option Tags RFC 2326
RTSP/1.0 Status Codes RFC 2326
Real-time Inter-network Defense (RID) RID Enumeration List RFC 6545
XML Schemas Exchanged via RID RFC 6545
Real-Time Streaming Protocol (RTSP) 2.0 Parameters Accept-Credentials Hash Algorithms RFC 7826
Accept-Credentials Policies RFC 7826
Cache-Control Cache Directive Extensions RFC 7826
Feature-tags RFC 7826
Media Properties RFC 7826
Notify-Reason Values RFC 7826
Range Header Formats RFC 7826
RSTP 2.0 Headers RFC 7826
RTP-Info Header Parameters RFC 7826
RTSP 2.0 Methods RFC 7826
RTSP 2.0 Status Codes RFC 7826
Seek-Style Policies RFC 7826
Terminate-Reason Header Parameters RFC 7826
Terminate-Reason Redirect Reasons RFC 7826
Transport Modes RFC 7826
Transport Parameters RFC 7826
Transport Protocol Identifier RFC 7826
Real-Time Transport Protocol (RTP) Parameters EKT Ciphers RFC 8870
EKT Message Types RFC 8870
FMT Values for PSFB Payload Types RFC 4585
FMT Values for RTPFB Payload Types RFC 4585
RAMS Response Code Space Registry RFC 6285





RAMS TLV Space Registry RFC 6285
RTCP Control Packet Types (PT) RFC 5761, RFC 3550




RTP Compact Header Extensions RFC 8285
RTP Payload Format Media Types RFC 4855, RFC 9751
RTP Payload Types (PT) for standard audio and video encodings - Closed RFC 3551
RTP Profile Names RFC 3550
RTP SDES Compact Header Extensions RFC 7941
RTP SDES Item Types RFC 3550
SFMT Values for RAMS Messages RFC 6285
SMT Values for TOKEN Packet Type Registry RFC 6284
Sub-Report Block Type (SRBT) Values for the RSI Packet RFC 5760
Realm Specific IP (RSIP) Parameters RSIP Address Types RFC 3103



RSIP Error Codes RFC 3103
RSIP Local Flow Policies RFC 3103



RSIP Message Types RFC 3103



RSIP Methods RFC 3103



RSIP Parameters RFC 3103



RSIP Remote Flow Policies RFC 3103



RSIP Tunnel Types RFC 3103



RSIP Vendor IDs RFC 3103



Realtime Traffic Flow Measurement (RTFM) Pattern Matching Engine (PME) Opcodes RFC 2722
RTFM Attributes RFC 2722


Registrar IDs Registrar IDs
Registration Data Access Protocol (RDAP) Bootstrap Service Registry for AS Number Space RFC 9224 Bootstrap Service Registry for Domain Name Space RFC 9224 Bootstrap Service Registry for IPv4 Address Space RFC 9224 Bootstrap Service Registry for IPv6 Address Space RFC 9224 Bootstrap Service Registry for Provider Object Tags RFC 8521 RDAP Extensions RFC 7480
RDAP JSON Values RFC 9083, RFC 9537
RDAP Provider Object Tags RFC 8521
RDAP Reverse Search RFC 9536
RDAP Reverse Search Mapping RFC 9536
Registration Data Access Protocol (RDAP) Query Purpose Values RFC 9560
Registry for the Session Initiation Protocol (SIP) NAPTR Resource Record Services Field SIP Table of Mappings From Service Field Values to Transport Protocols RFC 3263
Relay User Equipment (RUE) RUE Provider List RFC 9248
Reliable Multicast Transport (RMT) FEC Encoding IDs and FEC Instance IDs FEC Framework (FECFRAME) FEC Encoding IDs RFC 6363
ietf:rmt:fec:encoding - Fully-Specified FEC schemes (0-127) RFC 5052
ietf:rmt:fec:encoding - Under-Specified FEC schemes (128-255) RFC 5052
Reliable Server Pooling (RSerPool) Parameters Aggregate Server Access Protocol (ASAP) Message Types RFC 5352
Endpoint Handlespace Redundancy Protocol (ENRP) Message Types RFC 5353
RSerPool Error Causes RFC 5354
RSerPool Parameter Types RFC 5354
RSerPool Policy Types RFC 5356
Update Action Types RFC 5353
Remote Attestation Procedures (RATS) Entity Attestation Token (EAT) Intended Uses RFC 9711
Remote Direct Data Placement RDMA-CM Private Data Identifiers RFC 8797
Remote Direct Data Placement (RDDP) DDP Errors RFC 6580
MPA Errors RFC 6580
RDMAP DDP Untagged Queue Numbers RFC 7306
RDMAP Errors RFC 6580
RDMAP Message Atomic Operation Subcodes RFC 7306
RDMAP Message Operation Codes RFC 6580
SCTP Function Codes for DDP Stream Session Control RFC 6580
Remote Framebuffer (RFB) Remote Framebuffer Client-to-Server Message Types RFC 6143
Remote Framebuffer Encoding Types RFC 6143
Remote Framebuffer Security Types RFC 6143
Remote Framebuffer Server-to-Client Message Types RFC 6143
Remote Procedure Call (RPC) Network Identifier (r_netid) RFC 7530
ONC RPC Netids (First Come First Served) RFC 5665
ONC RPC Netids (Standards Action) RFC 5665
ONC RPC Uaddr Format Registry RFC 5665
Protocol family (r_nc_protofmly) RFC 1833
Protocol name (r_nc_proto) RFC 1833
RPC Authentication Flavor Numbers RFC 5531
RPC Authentication Status Numbers RFC 5531
RPCSEC_GSS Structured Privilege Names Registry RFC 7861
Transport semantics (r_nc_semantics) RFC 1833
Remote Procedure Call (RPC) Program Numbers RPC Program Numbers RFC 5531



Reputation Parameters Reputation Applications RFC 7071
Reserved IPv6 Interface Identifiers Reserved IPv6 Interface Identifiers RFC 5453, RFC 7136
REsource LOcation And Discovery (RELOAD) CoAP Usage for RELOAD Access Control Policy RFC 7650
RELOAD Access Control Policies RFC 6940
RELOAD Application-ID RFC 6940


RELOAD Data Kind-ID RFC 6940


RELOAD Data Model RFC 6940
RELOAD Diagnostic Kind ID RFC 7851
RELOAD Diagnostics Flag RFC 7851
RELOAD Error Codes RFC 6940
RELOAD Extensions Registry RFC 6940
RELOAD Forwarding Option Registry RFC 6940


RELOAD Message Codes RFC 6940
RELOAD Overlay Algorithm Types RFC 6940
RELOAD Overlay Link Protocol Registry RFC 6940
RELOAD Overlay Link Registry RFC 6940
RELOAD Probe Information Type Registry RFC 6940
RELOAD Services Registry RFC 7374
Resource Public Key Infrastructure (RPKI) BGPsec Algorithm Suites RFC 8608
BGPsec Capability RFC 8205
BGPsec_Path Flags RFC 8205
RPKI Repository Name Schemes RFC 6481
RPKI Signed Objects RFC 6488
rpki-rtr-afi Internet Draft draft-ietf-sidrops-8210bis-10
rpki-rtr-error RFC 6810
rpki-rtr-pdu RFC 6810
Resource Reservation Protocol (RSVP) Parameters Call Attributes Flags RFC 6001
Call Attributes TLV RFC 6001
Capability Object values RFC 5063
Class Names, Class Numbers, and Class Types RFC 3936









CONDITIONS Object Flags RFC 9705
Error Codes and Globally-Defined Error Value Sub-Codes RFC 3936



Interface Id Error specification Message Types RFC 3936


VCAT Elementary Signal Registry RFC 6344
VCAT VCG Operation Actions RFC 6344
Virtual Destination Ports RFC 2207



Resource Reservation Protocol-Traffic Engineering (RSVP-TE) Parameters Attribute Flags RFC 5420, RFC 7570
Attributes TLV Space RFC 5420, RFC 7570
Record Route Object Sub-object Flags RFC 3209
RTM_SET Object Sub-Object Types RFC 8169

Session Attribute Object Flags RFC 4859
Sub-TLV Types for WSON Processing Hop Attribute TLV RFC 7689
Values for Wavelength Assignment Method field in WavelengthSelection Sub-TLV RFC 7689
Resource-Oriented Lightweight Information Exchange (ROLIE) URN Parameters ROLIE Information Types RFC 8322
ROLIE URN Parameters RFC 8322
RESTCONF Capability URNs RESTCONF Capability URNs RFC 8040
RObust Header Compression (ROHC) Profile Identifiers Profile Identifiers RFC 5795
RObust Header Compression (ROHC) Suboption Identifier Values ROHC Configuration Option Suboption Identifier Values RFC 3241


Route Distinguisher Type Field Route Distinguisher Type Field RFC 4364

Routing in Fat Trees (RIFT) RIFT Security Algorithms RFC 9692
RIFTCommonAddressFamilyType RFC 9692


RIFTCommonHierarchyIndications RFC 9692


RIFTCommonIEEE8021ASTimeStampType RFC 9692


RIFTCommonIPAddressType RFC 9692


RIFTCommonIPPrefixType RFC 9692


RIFTCommonIPv4PrefixType RFC 9692


RIFTCommonIPv6PrefixType RFC 9692


RIFTCommonKVTypes RFC 9692


RIFTCommonPrefixSequenceType RFC 9692


RIFTCommonRouteType RFC 9692


RIFTCommonTieDirectionType RFC 9692


RIFTCommonTIETypeType RFC 9692


RIFTEncodingCommunity RFC 9692


RIFTEncodingKeyValueTIEElement RFC 9692


RIFTEncodingKeyValueTIEElementContent RFC 9692


RIFTEncodingLIEPacket RFC 9692


RIFTEncodingLinkCapabilities RFC 9692


RIFTEncodingLinkIDPair RFC 9692


RIFTEncodingNeighbor RFC 9692


RIFTEncodingNodeCapabilities RFC 9692


RIFTEncodingNodeFlags RFC 9692


RIFTEncodingNodeNeighborsTIEElement RFC 9692


RIFTEncodingNodeTIEElement RFC 9692


RIFTEncodingPacketContent RFC 9692


RIFTEncodingPacketHeader RFC 9692


RIFTEncodingPrefixAttributes RFC 9692


RIFTEncodingPrefixTIEElement RFC 9692


RIFTEncodingProtocolPacket RFC 9692


RIFTEncodingTIDEPacket RFC 9692


RIFTEncodingTIEElement RFC 9692


RIFTEncodingTIEHeader RFC 9692


RIFTEncodingTIEHeaderWithLifeTime RFC 9692


RIFTEncodingTIEID RFC 9692


RIFTEncodingTIEPacket RFC 9692


RIFTEncodingTIREPacket RFC 9692


RIFTVersions RFC 9692


Routing Information Protocol (RIP) Parameters RIP Address Family Identifiers RFC 1058
RIP Authentication Type RFC 1388
RIP Commands RFC 1723
RIP Update Headers RFC 1058
RIPNG Commands RFC 2080
RIPNG Update Headers RFC 2080
Routing Protocol for Low Power and Lossy Networks (RPL) Consistency Check (CC) Flags RFC 6550
Destination Advertisement Object (DAO) Acknowledgment Flags RFC 6550
Destination Advertisement Object (DAO) Flags RFC 6550
Destination Cleanup Object (DCO) Flags RFC 9009
Destination Cleanup Object Acknowledgment (DCO) Acknowledgment Flags RFC 9009
DODAG Configuration Option Flags for MOP 0..6 RFC 6550, RFC 9008
DODAG Information Object (DIO) Flags RFC 6550
DODAG Informational Solicitation (DIS) Flags RFC 6550
Mode of Operation RFC 6550, RFC 9008
Objective Code Point (OCP) RFC 6550
PDR-ACK Acceptance Status Values Internet Draft draft-ietf-roll-dao-projection-40
PDR-ACK Flags Internet Draft draft-ietf-roll-dao-projection-40
PDR-ACK Rejection Status Values Internet Draft draft-ietf-roll-dao-projection-40
Per-KIM Security Levels RFC 6550
Projected DAO Request (PDR) Flags Internet Draft draft-ietf-roll-dao-projection-40
RPL Control Codes RFC 6550
RPL Control Message Options RFC 6550
RPL Non-Rejection Status RFC 9010
RPL Option Flags Internet Draft draft-ietf-roll-dao-projection-40
RPL Rejection Status RFC 9010
RPL Target Option Flags RFC 6550, RFC 9010
Security Section Algorithm RFC 6550
Security Section Flags RFC 6550
Sibling Information Option (SIO) Flags Internet Draft draft-ietf-roll-dao-projection-40
Solicited Information Option Flags RFC 6550
Transit Information Option Flags RFC 6550
Via Information Options (VIO) Flags Internet Draft draft-ietf-roll-dao-projection-40
Routing Protocol for Low Power and Lossy Networks (RPL) Routing Metric/Constraint Hop-Count Object Flag field RFC 6551
Node Type Field RFC 6551
NSA Object Flag field RFC 6551
Routing Metric/Constraint Common Header A field RFC 6551
Routing Metric/Constraint Common Header Flag field RFC 6551
Routing Metric/Constraint TLVs RFC 6551
Routing Metric/Constraint Type RFC 6551
RSVP-TE OAM Configuration Registry BFD Configuration Sub-TLV Types RFC 7487
Ethernet Sub-TLVs Sub-Registry RFC 7369
MPLS OAM Configuration Sub-TLV Types RFC 7487
OAM Function Flags Sub-Registry RFC 7260
OAM Sub-TLVs RFC 7260


OAM Types RFC 7260
Performance Monitoring Sub-TLV Types RFC 7487
RTP Control Protocol Extended Reports (RTCP XR) Block Type Registry IDMS XR Block SPST Registry RFC 7272
RTCP XR Block Type RFC 3611
RTCP XR MOS Metric block - multimedia application Calculation Algorithm RFC 7266
RTCP XR PDV block - PDV type RFC 6798
RTP Control Protocol Extended Reports (RTCP XR) Session Description Protocol (SDP) Parameters Registry RTCP XR SDP Parameters RFC 3611
S Scalable Adaptive Multicast (SAM) Baseline SAM ALM Algorithm IDs RFC 7019
SAM ALM Error Codes RFC 7019
SAM ALM Message Codes RFC 7019
Secret Key Transaction Authentication for DNS (TSIG) Algorithm Names TSIG Algorithm Names RFC 8945
Secure Shell (SSH) Protocol Parameters Authentication Method Names RFC 4250, RFC 9519
Channel Connection Failure Reason Codes and Descriptions RFC 4250, RFC 9519


Compression Algorithm Names RFC 4250, RFC 9519
Connection Protocol Channel Request Names RFC 4250, RFC 9519
Connection Protocol Channel Types RFC 4250, RFC 9519
Connection Protocol Global Request Names RFC 4250, RFC 9519
Connection Protocol Subsystem Names RFC 4250, RFC 9519
Disconnection Messages Reason Codes and Descriptions RFC 4250, RFC 9519


Encryption Algorithm Names RFC 4250, RFC 9519
Extended Channel Data Transfer data_type_code and Data RFC 4250, RFC 9519


Extension Names RFC 8308, RFC 9519
Key Exchange Method Names RFC 4250, RFC 9142, RFC 9519
MAC Algorithm Names RFC 4250, RFC 9519
Message Numbers RFC 4250
Pseudo-Terminal Encoded Terminal Modes RFC 4250, RFC 9519
Public Key Algorithm Names RFC 4250, RFC 9519
Publickey Subsystem Attributes RFC 4819, RFC 9519
Publickey Subsystem Request Names RFC 4819, RFC 9519
Publickey Subsystem Response Names RFC 4819, RFC 9519
Publickey Subsystem Status Codes RFC 4819

Service Names RFC 4250, RFC 9519
Signal Names RFC 4250, RFC 9519
SSH Public-Key File Header Tags RFC 4716, RFC 9519
Security Event Token (SET) Security Event Token Error Codes RFC 8935
Subject Identifier Formats RFC 9493
Security External Enumeration Registry Security External Enumeration Registry RFC 7495
Security Label Format Selection Security Label Format Selection Registry RFC 7569
Security Parameters Index (SPI) Parameters Security Parameters Index (SPI) RFC 1826, RFC 2402, RFC 2406, RFC 4302, RFC 4303
security.txt Fields security.txt Fields RFC 9116
Segment Routing Segment Types RFC 9256
SR Policy ENLP Values Internet Draft draft-ietf-idr-sr-policy-safi-13
SR Policy Protocol Origin Internet Draft draft-ietf-idr-bgp-ls-sr-policy-17


SRv6 Endpoint Behaviors RFC 8986




Selective P-Multicast Service Interface (S-PMSI) Parameters S-PMSI Join Message Type Field RFC 6513
Semantic Definition Format (SDF) SDF Feature Names Internet Draft draft-ietf-asdf-sdf-23
SDF Quality Name Prefixes Internet Draft draft-ietf-asdf-sdf-23
SDF Quality Names Internet Draft draft-ietf-asdf-sdf-23
sdfType Values Internet Draft draft-ietf-asdf-sdf-23
Sender Policy Framework (SPF) Parameters Modifier Names RFC 6652
Sensor Measurement Lists (SenML) Secondary Units RFC 8798
SenML Features RFC 9100
SenML Labels RFC 8428
SenML Units RFC 8428
Server Cache Synchronization Protocol (SCSP) Parameters Protocol IDs RFC 2334
Service Function Chaining (SFC) Active Operations, Administration, and Maintenance (OAM) SF Identifier Types RFC 9516


SFC Active OAM Message Types RFC 9516

SFC Active OAM TLV Types RFC 9516



SFC Echo Reply Modes RFC 9516



SFC Echo Request Flags RFC 9516
SFC Echo Return Codes RFC 9516


SFC Echo Types RFC 9516



Service Function Chaining Service Function Types Service Function Chaining Service Function Types RFC 9015


Service Location Protocol (SLP) Remote Service Discovery SLP Remote Service Discovery RFC 3832
Service Location Protocol Version 2 (SLPv2) Cryptographic BSD Codes Cryptographic BSD Codes RFC 2608
Service Location Protocol Version 2 (SLPv2) Registrations Service Location Protocol, Version 2 (SLPv2) Templates RFC 2609
SLPv2 Extension IDs RFC 2608
Service Location Protocol, Version 2 (SLPv2) Error Numbers Error Numbers RFC 2608
Service Location Protocol, Version 2 (SLPv2) Function IDs Function IDs RFC 2608
Service Names and Transport Protocol Port Numbers Service Name and Transport Protocol Port Number Registry RFC 6335
Session Description Protocol (SDP) Parameters "ack" and "nack" Attribute Values RFC 4585, RFC 8859
addrtype RFC 8866
association-usage Name Registry RFC 8841
attribute-name (formerly "att-field") RFC 8866, RFC 8864, RFC 8859
bwtype RFC 8866, RFC 8859
Candidate Attribute Extensions RFC 8839
Codec Control Messages RFC 5104, RFC 8859
content SDP Parameters RFC 4796, RFC 8859
"cs-correlation" Attribute Values RFC 7195, RFC 8859
"depend" SDP Attribute Values RFC 5583, RFC 8859
enckey RFC 8866
Key Methods RFC 4568
media RFC 8866
Media Clock Source Parameters RFC 7273, RFC 8859
Media Stream Transports RFC 4568
Multiplexing Categories RFC 8859
nettype RFC 8866
proto RFC 8866
QoS Mechanism Tokens RFC 5432, RFC 8859
RID Attribute Parameters RFC 8851
"rtcp-fb" Attribute Values RFC 4585, RFC 8859
SDP Capability Negotiation Configuration Parameters Registry RFC 5939, RFC 6871
SDP Capability Negotiation Option Tags RFC 5939, RFC 8859
SDP/RTSP key management protocol identifiers RFC 4567, RFC 8859
Semantics for the "group" SDP Attribute RFC 5888, RFC 8859
Semantics for the "ssrc-group" SDP Attribute RFC 5576, RFC 8859
SRTP Crypto Suite Registrations RFC 4568
SRTP Session Parameters RFC 4568
Timestamp Reference Clock Source Parameters RFC 7273, RFC 8859
Session Initiation Protocol (SIP) Common Log Format (CLF) Parameters SIP CLF Transport Flag Values RFC 6873
SIP CLF Version Values RFC 6873
Session Initiation Protocol (SIP) Event Types Namespace Event packages and Event template-packages RFC 3427, RFC 6665, RFC 5727


Session Initiation Protocol (SIP) Parameters Compression Schemes RFC 3486
Geolocation-Error Codes RFC 6442
Global Feature-Capability Indicator Registration Tree RFC 6809
Header Field Parameters and Parameter Values RFC 3968
Header Fields RFC 3261, RFC 3427, RFC 5727


Identity Parameters RFC 8224
Identity-Info Algorithm Parameter Values RFC 8224
Info Packages Registry RFC 6086
Methods and Response Codes RFC 3261, RFC 5727
Option Tags RFC 3261, RFC 5727
Precondition Types Used with SIP RFC 4032, RFC 3312
Preemption Namespaces RFC 4411
Priority Header Field Values RFC 6878
Proxy-Feature Feature-Capability Indicator Trees RFC 6809
Push Notification Service (PNS) RFC 8599
Reason Codes RFC 6665
Reason Protocols RFC 3326
Resource-Priority Namespaces RFC 4412, RFC 7134
Resource-Priority Priority-values RFC 4412, RFC 7134
Response Codes RFC 3261
Security Mechanism Names RFC 3329
Service-ID/Application-ID Labels RFC 6050
SIP AlertMsg-Error Codes RFC 8876
SIP Configuration Profile Types RFC 6080
SIP Feature-Capability Indicator Registration Tree RFC 6809
SIP Forum User Agent Configuration Parameters RFC 6011

SIP Privacy Header Field Values RFC 3323
SIP Transport RFC 7118
SIP/SIPS URI Parameters RFC 3969, RFC 5727
URI Purposes RFC 4575
UUI Content Parameters RFC 7433
UUI Encoding Parameters RFC 7433
UUI Packages RFC 7433
Warning Codes (warn-codes) RFC 3261
Session Initiation Protocol (SIP) Privacy Header Values SIP Privacy Header Values RFC 3323
Session Peering Provisioning Framework (SPPF) Organization Identifier Type Namespaces SPPF OrgIdType Namespaces RFC 7877
Session Traversal Utilities for NAT (STUN) Parameters STUN Attributes RFC 8489




STUN Error Codes RFC 8489
STUN Methods RFC 8489, RFC 7983


STUN Password Algorithms RFC 8489


STUN Security Features RFC 8489
Traversal Using Relays around NAT (TURN) Channel Numbers RFC 7983, RFC 8656
SFrame SFrame Cipher Suites RFC 9605



Shim6 Parameters Shim6 Error Codes RFC 5533
Shim6 Options RFC 5533
Shim6 Types RFC 5533
Shim6 Verification Methods RFC 5533
Sieve Extensions ManageSieve Capabilities RFC 5804
ManageSieve Response Codes RFC 5804
Notification-Capability Parameters RFC 5435


Sieve Actions RFC 9122
Sieve Environment Items RFC 5183

Sieve Extensions RFC 5228

Sieve Notification Mechanisms RFC 5435


Sieve URN Parameters RFC 6134
SIG (0) Algorithm Numbers SIG (0) Algorithm Numbers RFC 3755
Signaling Compression (SigComp) Registry SigComp_version Namespace RFC 3320
Signaling User Adaptation Layer Assignments Message Classes RFC 3057, RFC 4233
Message Parameters RFC 3331, RFC 4233, RFC 4666
Message Types - ASP State Maintenance (ASPSM) Messages (Value 3) RFC 4233, RFC 3331, RFC 4666, RFC 3868, RFC 4129, RFC 3057
Message Types - ASP Traffic Maintenance (ASPTM) Messages (Value 4) RFC 4233, RFC 3331, RFC 4666, RFC 3868, RFC 4129, RFC 3057
Message Types - Connection-Oriented Messages (Value 8) RFC 3868
Message Types - Connectionless Messages (Value 7) RFC 3868
Message Types - DPNSS/DASS2 Boundary Primitives Transport Messages (Value 13) RFC 4129
Message Types - Interface Identifier Management (IIM) Messages (Value 10) RFC 3331
Message Types - M2PA Messages (Value 11) RFC 4165
Message Types - Management (MGMT) Message (Value 0) RFC 4233, RFC 3331, RFC 4666, RFC 3868, RFC 4129, RFC 3057
Message Types - MTP2 User Adaptation (MAUP) Messages (Value 6) RFC 3331
Message Types - Q.921/Q.931 Boundary Primitives Transport (QPTM) Messages (Value 5) RFC 4233
Message Types - Routing Key Management (RKM) Messages (Value 9) RFC 4666
Message Types - Security Messages (Value 12) RFC 3788
Message Types - SS7 Signalling Network Management (SSNM) Messages (Value 2) RFC 4666, RFC 3868
Message Types - Transfer Messages (Value 1) RFC 4666
Message Types - V5 Boundary Primitives Transport (V5PTM) Messages (Value 14) RFC 3807
Simple Authentication and Security Layer (SASL) Mechanisms SASL Mechanisms RFC 4422
SASL SCRAM Family Mechanisms RFC 7677
Simple Certificate Enrollment Protocol (SCEP) SCEP CA Capabilities RFC 8894
SCEP Message Types RFC 8894
Simple Gateway Monitoring Protocol (SGMP) Vendor Specific Codes (Obsolete) SGMP Vendor Specific Codes (Obsolete) RFC 1028
Simple Mail Transfer Protocol (SMTP) Enhanced Status Codes Registry Class Sub-Codes RFC 5248
Enumerated Status Codes RFC 5248
Subject Sub-Codes RFC 5248
Simple Network Management Protocol (SNMP) Number Spaces Message Processing Models RFC 3411
Security Models RFC 3411
SNMP Transport Domains RFC 2578, RFC 3417, RFC 5590
SnmpAuthProtocols RFC 3411
SnmpEngineID Formats RFC 3411, RFC 5343


SnmpPrivProtocols RFC 3411
Simple Two-way Active Measurement Protocol (STAMP) Return Path Control Code Flags RFC 9503



Return Path Sub-TLV Types RFC 9503



STAMP Return Codes RFC 8972



STAMP Sub-TLV Types RFC 8972



STAMP Synchronization Sources RFC 8972



STAMP Timestamping Methods RFC 8972



STAMP TLV Flags RFC 8972
STAMP TLV Types RFC 8972



SMTP MTA Strict Transport Security (MTA-STS) MTA-STS Policy Fields RFC 8461
MTA-STS TXT Record Fields RFC 8461
Snoop Datalink Types Datalink Types RFC 3827

SOCKS Methods SOCKS Method Values RFC 1928
Software ID Values Software ID Entity Role Values RFC 9393


Software ID Link Ownership Values RFC 9393


Software ID Link Relationship Values RFC 9393


Software ID Link Use Values RFC 9393


Software ID Version Scheme Values RFC 9393


Software Update for the Internet of Things (SUIT) SUIT Commands Internet Draft draft-ietf-suit-manifest-34



SUIT Common Elements Internet Draft draft-ietf-suit-manifest-34



SUIT Component Text Values Internet Draft draft-ietf-suit-manifest-34



SUIT Envelope Elements Internet Draft draft-ietf-suit-manifest-34



SUIT Manifest Elements Internet Draft draft-ietf-suit-manifest-34



SUIT Parameters Internet Draft draft-ietf-suit-manifest-34



SUIT Text Values Internet Draft draft-ietf-suit-manifest-34



Special People Numbers Registry (SPNR) Special People Numbers Registry
Special-Purpose Autonomous System (AS) Numbers Special-Purpose AS Numbers RFC 7249
Special-Use Domain Names Special-Use Domain Names RFC 6761
STARTTLS Validation Result Types STARTTLS Validation Result Types RFC 8460
Straightforward-NAPTR (S-NAPTR) Parameters S-NAPTR Application Protocol Tags RFC 3958, RFC 4848
S-NAPTR Application Service Tags RFC 3958, RFC 4848
Stream Control Transmission Protocol (SCTP) Parameters Adaptation Code Points RFC 5061
Chunk Flags RFC 9260
Chunk Parameter Types RFC 9260
Chunk Types RFC 9260
Error Cause Codes RFC 9260
Error Detection Methods RFC 9653
Hashed Message Authentication Code (HMAC) Identifiers RFC 4895
SCTP Payload Protocol Identifiers RFC 9260
Stringprep Profiles Stringprep Profiles RFC 3454
Structure of Management Information (SMI) Numbers (MIB Module Registrations) Interface Types (ifType) RFC 1213, RFC 2863, RFC 7224, RFC 8892
Internet-standard MIB - Mail Monitoring Internet-standard MIB - Network Services Monitoring IPFIX-SELECTOR-MIB Functions RFC 6615
MIB - Remote Network Monitoring RFC 2819, RFC 3737
SMI Experimental Codes RFC 4181, RFC 2578, RFC 1155
SMI Features RFC 2506
SMI mail Codes
SMI mib-2 snanauMIB Codes RFC 1666
SMI Network Management Directory Codes SMI Network Management MGMT Codes RFC 2578
SMI pib PIB Codes RFC 3159
SMI Private Codes RFC 2578
SMI Security Codes (including S/MIME, PKIX and LTANS)
SMI Security for Cryptographic Algorithms RFC 8411
SMI Security for Name System Designators Codes (nametypes)
SMI Security Services Codes
SMI SNMPv2 Codes RFC 2578, RFC 1902
SNMP Management Architecture - Message Processing Subsystem (SnmpMessageProcessingModel) SNMP Management Architecture - Security Subsystem (SnmpSecurityModel) SNMP-TLSTM HashAlgorithms RFC 9456
spdActions RFC 4807
Transmission Number Values RFC 1213, RFC 8892
Tunnel Types (tunnelType) RFC 4087, RFC 8675, RFC 8892
Structured Data Exchange Format (SDXF) Compression Methods for SDXF RFC 3072
Encryption Methods for SDXF RFC 3072
Subsequent Address Family Identifiers (SAFI) Parameters SAFI Values RFC 4760



SUN Remote Procedure Call (RPC) Numbers - Obsolete SUN RPC Numbers RFC 1831 syslog Parameters syslog Message Facilities RFC 5424
syslog Message Severities RFC 5424
syslog Structured Data ID Values RFC 5424
syslog Version Values RFC 5424
syslog-sign Hash Algorithm Values RFC 5848
syslog-sign Key Blob Type Values RFC 5848
syslog-sign Protocol Version Values RFC 5848
syslog-sign SG Field Values RFC 5848
syslog-sign Signature Scheme Values RFC 5848
System for Cross-domain Identity Management (SCIM) Schema URIs SCIM Schema URIs for Data Resources RFC 7643
SCIM Server-Related Schema URIs RFC 7643
T TCP Convert Protocol (Convert) Parameters Convert Errors RFC 8803



Convert TLVs RFC 8803



Convert Versions RFC 8803
Telephony Routing over IP (TRIP) Parameters TRIP Address Families RFC 3219
TRIP Application Protocols RFC 3219
TRIP Attributes RFC 3219
TRIP Capabilities RFC 3219
TRIP IP Telephony Administrative Domain (ITAD) Numbers RFC 3219, RFC 8602
Telnet Options CAST5_40_CFB64 (Type 8) and CAST128_CFB64 (Type 10) Telnet Encryption Types RFC 2950
CAST5_40_OFB64 (Type 9) and CAST128_OFB64 (Type 11) Telnet Encryption Types RFC 2949
DES3_CFB64 Telnet Encryption Type (Type 3) RFC 2947
DES3_OFB64 Telnet Encryption Type (Type 4) RFC 2948
DES_CFB64 Telnet Encryption Type (Type 1) RFC 2952
DES_OFB64 Telnet Encryption Type (Type 2) RFC 2953
DSS Authentication Type (Type 14) RFC 2943
KEA_SJ (Type 12) and KEA_SJ_INTEG (Type 13) Authentication Types RFC 2951
KERBEROS_V4 Telnet Authentication Type (Type 1) RFC 1411
KERBEROS_V5 Telnet Authentication Type (Type 2) RFC 2942
SRP Telnet Authentication Type (Type 5) RFC 2944
Telnet Authentication Types (Option 37) RFC 2941
Telnet Encryption Types (Option 38) RFC 2946
Telnet Options RFC 855
Terminal Type Names Terminal Type Names RFC 1091
The Binary Floor Control Protocol (BFCP) Parameters Attributes RFC 8855
Error Codes RFC 8855
Primitives RFC 8855
Request Statuses RFC 8855
The Extensible Authentication Protocol Mechanism for the Generic Security Service Application Programming Interface (GSS-EAP) Parameters GSS-EAP Context Flags RFC 7055
GSS-EAP Error Codes RFC 7055


GSS-EAP Subtoken Types RFC 7055
Time Zone Data Distribution Service (TZDIST) Parameters TZDIST Identifiers RFC 7808
TZDIST Service Actions RFC 7808
Timed Efficient Stream Loss-tolerant Authentication (TESLA) Parameters Cryptographic Message Authentication Code (MAC) Function, TESLA-MAC Values RFC 4442
Cryptographic Pseudo-Random Function, TESLA-PRF Values RFC 4442
Signature Cryptographic Function, TESLA-SIG-CRYPTO-FUNC Values RFC 5776
Signature Encoding Algorithm, TESLA-SIG-ALGO Values RFC 5776
TLS-based Posture Transport Protocol (PT-TLS) PT-TLS Error Codes RFC 6876
PT-TLS Message Types RFC 6876
Token Binding Protocol Token Binding Extensions RFC 8471
Token Binding Key Parameters RFC 8471
Token Binding Types RFC 8471
Trailer Types Trailer Types RFC 6081
Transfer Encodings Transfer Encodings RFC 4289
Transmission Control Protocol (TCP) Header Flags TCP Header Flags RFC 9293
Transmission Control Protocol (TCP) Parameters Cryptographic Algorithms for TCP-AO Registration RFC 5926
MPTCP Handshake Algorithms RFC 8684
MPTCP MP_TCPRST Reason Codes RFC 8684
MPTCP Option Subtypes RFC 8684
TCP Alternate Checksum Numbers RFC 1146
TCP Encryption Protocol Identifiers RFC 8547
TCP Header Flags RFC 9293
TCP Option Kind Numbers RFC 2780
TCP/UDP Experimental Option Experiment Identifiers (TCP/UDP ExIDs) RFC 6994, Internet Draft draft-ietf-tsvwg-udp-options-45
tcpcrypt AEAD Algorithms RFC 8548
Transparent Interconnection of Lots of Links (TRILL) Parameters Extended RBridge Channel Payload Types RFC 7978
Extended RBridge Channel Security Types RFC 7978
Interested Labels Flag Bits RFC 7176, RFC 7357
Interested VLANs Flag Bits RFC 7176, RFC 7357
PORT-TRILL-VER Sub-TLV Capability Flags RFC 7176
RBridge Channel Error Codes RFC 7178
RBridge Channel Header Flags RFC 7178
RBridge Channel Protocols RFC 7178


TRILL APPsub-TLV Types under IS-IS TLV 251 Application Identifier 1 RFC 7357
TRILL Ethertypes RFC 8377
TRILL Extended Header Flags RFC 7179
TRILL Multicast Addresses RFC 6325
TRILL Neighbor TLV NEIGHBOR RECORD Flags RFC 7176
TRILL Nicknames RFC 6325
TRILL OAM Return Codes RFC 7455
TRILL Pull Directory Errors RFC 8171
TRILL Pull Directory Query Types (QTYPEs) RFC 8171
TRILL-VER Sub-TLV Capability Flags RFC 7176
Transport Layer Security (TLS) TLS Alerts RFC 8446, Internet Draft draft-ietf-tls-tls12-frozen-08
TLS Application-Layer Protocol Negotiation (ALPN) Protocol IDs RFC 7301, RFC 8447, Internet Draft draft-ietf-tls-rfc8447bis-14
TLS Authorization Data Formats RFC 5878, RFC 8447, Internet Draft draft-ietf-tls-tls12-frozen-08, Internet Draft draft-ietf-tls-rfc8447bis-14



TLS CachedInformationType Values RFC 7924, Internet Draft draft-ietf-tls-tls12-frozen-08, Internet Draft draft-ietf-tls-rfc8447bis-14


TLS Certificate Compression Algorithm IDs RFC 8879, Internet Draft draft-ietf-tls-tls12-frozen-08, Internet Draft draft-ietf-tls-rfc8447bis-14



TLS Certificate Status Types RFC 6961, RFC 8446, Internet Draft draft-ietf-tls-tls12-frozen-08, Internet Draft draft-ietf-tls-rfc8447bis-14
TLS Certificate Types RFC 6091, RFC 8446, RFC 8447, Internet Draft draft-ietf-tls-tls12-frozen-08, Internet Draft draft-ietf-tls-rfc8447bis-14


TLS Cipher Suites RFC 8446, RFC 8447, RFC 9147, Internet Draft draft-ietf-tls-tls12-frozen-08, Internet Draft draft-ietf-tls-rfc8447bis-14


TLS ClientCertificateType Identifiers RFC 5246, RFC 8447, Internet Draft draft-ietf-tls-tls12-frozen-08, Internet Draft draft-ietf-tls-rfc8447bis-14



TLS Compression Method Identifiers RFC 3749, RFC 8447



TLS ContentType RFC 8446, RFC 9443, Internet Draft draft-ietf-tls-tls12-frozen-08, Internet Draft draft-ietf-tls-rfc8447bis-14
TLS EC Curve Types RFC 8422, Internet Draft draft-ietf-tls-tls12-frozen-08, Internet Draft draft-ietf-tls-rfc8447bis-14
TLS EC Point Formats RFC 8422, Internet Draft draft-ietf-tls-tls12-frozen-08, Internet Draft draft-ietf-tls-rfc8447bis-14
TLS Exporter Labels RFC 5705, RFC 8447, Internet Draft draft-ietf-tls-rfc8447bis-14


TLS ExtensionType Values RFC 8446, RFC 8447, RFC 9146, Internet Draft draft-ietf-tls-tls12-frozen-08, Internet Draft draft-ietf-tls-rfc8447bis-14


TLS HandshakeType RFC 8446, Internet Draft draft-ietf-tls-tls12-frozen-08
TLS HashAlgorithm RFC 5246, RFC 8447, RFC 9155, Internet Draft draft-ietf-tls-tls12-frozen-08, Internet Draft draft-ietf-tls-rfc8447bis-14



TLS Heartbeat Message Types RFC 6520, RFC 8447, Internet Draft draft-ietf-tls-tls12-frozen-08, Internet Draft draft-ietf-tls-rfc8447bis-14
TLS Heartbeat Modes RFC 6520, RFC 8447, Internet Draft draft-ietf-tls-tls12-frozen-08, Internet Draft draft-ietf-tls-rfc8447bis-14
TLS KDF Identifiers RFC 9258, Internet Draft draft-ietf-tls-tls12-frozen-08, Internet Draft draft-ietf-tls-rfc8447bis-14


TLS PskKeyExchangeMode RFC 8446, Internet Draft draft-ietf-tls-tls12-frozen-08, Internet Draft draft-ietf-tls-rfc8447bis-14


TLS SignatureAlgorithm RFC 5246, RFC 8447, RFC 9155, Internet Draft draft-ietf-tls-tls12-frozen-08, Internet Draft draft-ietf-tls-rfc8447bis-14



TLS SignatureScheme RFC 8446, Internet Draft draft-ietf-tls-tls12-frozen-08, Internet Draft draft-ietf-tls-rfc8447bis-14


TLS SSLKEYLOGFILE Labels Internet Draft draft-ietf-tls-keylogfile-05, Internet Draft draft-ietf-tls-rfc8447bis-14
TLS Supplemental Data Formats (SupplementalDataType) RFC 4680, RFC 8447, Internet Draft draft-ietf-tls-tls12-frozen-08, Internet Draft draft-ietf-tls-rfc8447bis-14


TLS Supported Groups RFC 8422, RFC 7919, RFC 8446, RFC 8447, Internet Draft draft-ietf-tls-tls12-frozen-08, Internet Draft draft-ietf-tls-rfc8447bis-14






TLS UserMappingType Values RFC 4681, Internet Draft draft-ietf-tls-tls12-frozen-08, Internet Draft draft-ietf-tls-rfc8447bis-14



Tunnel Setup Protocol (TSP) Parameters Tunnel Types RFC 5572
Two-way Active Measurement Protocol (TWAMP) Parameters TWAMP-Control Command Numbers RFC 5357, RFC 5938
TWAMP-Modes RFC 5618, RFC 5938, RFC 7717
U Unidirectional Lightweight Encapsulation (ULE) Next-Header Registry Mandatory Extension Headers (or link-dependent type fields) for ULE (Range 0-255 decimal) RFC 4326, RFC 7280
Optional Extension Headers for ULE (Range 256-511 decimal) RFC 4326, RFC 7280
Uniform Resource Identifier (URI) Schemes "about" URI Tokens RFC 6694
'geo' URI 'crs' Parameter Values RFC 5870
'geo' URI Parameters RFC 5870
'ipn' Scheme URI Allocator Identifiers RFC 9758





'ipn' Scheme URI Default Allocator Node Numbers RFC 7116, RFC 9758



'ipn' Scheme URI Well-Known Service Numbers for BPv7 RFC 9758






POSH Service Names RFC 7711
tel URI Parameters RFC 5341
Uniform Resource Identifier (URI) Schemes RFC 7595, RFC 8615



Well-Known URIs RFC 8615
Uniform Resource Name (URN) Namespace for IETF Use IETF URN Sub-namespace for Registered Protocol Parameter Identifiers RFC 3553
IETF URN Sub-namespaces RFC 6924
Uniform Resource Names (URN) Alert URN Identifiers RFC 7462
Alert URN Providers RFC 7462
Formal URN Namespaces RFC 8141
Informal URN Namespaces RFC 8141
URN Service Labels RFC 5031
User Datagram Protocol (UDP) TCP/UDP Experimental Option Experiment Identifiers (TCP/UDP ExIDs) RFC 6994, Internet Draft draft-ietf-tsvwg-udp-options-45 UDP Option Kind Numbers Internet Draft draft-ietf-tsvwg-udp-options-45
UUID UUID Namespace IDs RFC 9562
UUID Subtypes RFC 9562
V vCard Elements vCard Parameter Values RFC 6350
vCard Parameters RFC 6350


vCard Properties RFC 6350


vCard Property Values RFC 6350
vCard Value Data Types RFC 6350
VCDIFF Secondary Compressor ID Values VCDIFF Secondary Compressor ID Values RFC 3284
Vectors of Trust (VoT) Vectors of Trust Components RFC 8485
'version' symbols used within the ISUP and QSIG application/ISUP symbols RFC 3204
application/QSIG symbols RFC 3204
Virtual Network Computing (VNC) Uniform Resource Identifier (URI) VNC URI Connection Channel Types RFC 7869
VNC URI ID Hash Algorithms RFC 7869
VNC URI Parameters RFC 7869
W WAVE and AVI Codec Registries (Historic Registry) WAVE and AVI Codec Registries RFC 2361
Web Authentication (WebAuthn) WebAuthn Attestation Statement Format Identifiers RFC 8809
WebAuthn Extension Identifiers RFC 8809
Web Push Parameters VAPID Authentication Scheme Parameters RFC 8292
Web Push Identifiers RFC 8030
Webfinger Parameters Webfinger Properties RFC 7033
WebRTC-HTTP Ingestion Protocol (WHIP) WebRTC-HTTP Ingestion Protocol (WHIP) Extension URNs RFC 9725
WebRTC-HTTP Ingestion Protocol (WHIP) URNs RFC 9725
WebSocket Protocol Registries WebSocket Close Code Number Registry RFC 6455


WebSocket Extension Name Registry RFC 6455
WebSocket Framing Header Bits Registry RFC 6455
WebSocket Opcode Registry RFC 6455
WebSocket Subprotocol Name Registry RFC 6455, RFC 7936, RFC 8864
WebSocket Version Number Registry RFC 6455


Wrapped Encapsulating Security Payload (WESP) Flags WESP Flags RFC 5840
WESP Version Numbers RFC 5840
X X.25 Type Numbers X.25 Type Numbers
Xerox Network System (XNS) Protocol Types Assigned internet packet types
Assigned well-known socket numbers
XML Evidence Record Syntax (XMLERS) Cryptographic Information Type RFC 6283
Time-Stamp Token Type RFC 6283
XML Security URIs XML Security URIs RFC 9231
Y YANG Geographic Location Parameters Geodetic System Values RFC 9179
YANG Module Tags IETF YANG Module Tags RFC 8819
YANG Module Tag Prefixes RFC 8819
YANG Modules iana-bfd-types YANG Module RFC 9127, RFC 5880
iana-bgp-l2-encaps YANG Module RFC 9291, RFC 6624
iana-crypt-hash YANG Module RFC 7317
iana-dns-class-rr-type YANG Module RFC 9108
iana-dots-signal-channel YANG Module RFC 9132
iana-hardware YANG Module RFC 8348
iana-if-type YANG Module RFC 1213, RFC 2863, RFC 7224, RFC 8892
iana-msd-types YANG Module RFC 9702
iana-pseudowire-types YANG Module RFC 9291, RFC 4446
iana-routing-types YANG Module RFC 8294, RFC 2453, RFC 2677, RFC 2858, RFC 4760
iana-ssh-encryption-algs YANG Module RFC 9644
iana-ssh-key-exchange-algs YANG Module RFC 9644
iana-ssh-mac-algs YANG Module RFC 9644
iana-ssh-public-key-algs YANG Module RFC 9644
iana-tls-cipher-suite-algs YANG Module RFC 9645
iana-tunnel-type YANG Module RFC 4087, RFC 8675, RFC 8892
YANG Parameters YANG Module Names RFC 6020, Internet Draft draft-ietf-netmod-rfc8407bis-28
YANG SIDs IETF YANG-SID Modules RFC 9595
IETF YANG-SID Ranges RFC 9595





YANG-SID Mega-Ranges RFC 9595

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