~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ BCP INDEX ------------- (CREATED ON: 05/20/2026.) This file contains citations for all BCPs in numeric order. The BCPs form a sub-series of the RFC document series, specifically those RFCs with the status BEST CURRENT PRACTICE. BCP citations appear in this format: [BCP#] Best Current Practice #, . At the time of writing, this BCP comprises the following: Author 1, Author 2, "Title of the RFC", BCP #, RFC №, DOI DOI string, Issue date, . For example: [BCP3] Best Current Practice 3, . At the time of writing, this BCP comprises the following: F. Kastenholz, "Variance for The PPP Compression Control Protocol and The PPP Encryption Control Protocol", BCP 3, RFC 1915, DOI 10.17487/RFC1915, February 1996, . Key to fields: # is the BCP number. № is the RFC number. BCPs and other RFCs may be obtained from https://www.rfc-editor.org. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ BCP INDEX --------- [BCP1] Best Current Practice 1 currently contains no RFCs [BCP2] Best Current Practice 2 currently contains no RFCs [BCP3] Best Current Practice 3, . At the time of writing, this BCP comprises the following: F. Kastenholz, "Variance for The PPP Compression Control Protocol and The PPP Encryption Control Protocol", BCP 3, RFC 1915, DOI 10.17487/RFC1915, February 1996, . [BCP4] Best Current Practice 4, . At the time of writing, this BCP comprises the following: P. Nesser II, "An Appeal to the Internet Community to Return Unused IP Networks (Prefixes) to the IANA", BCP 4, RFC 1917, DOI 10.17487/RFC1917, February 1996, . [BCP5] Best Current Practice 5, . At the time of writing, this BCP comprises the following: Y. Rekhter, B. Moskowitz, D. Karrenberg, G. J. de Groot, E. Lear, "Address Allocation for Private Internets", BCP 5, RFC 1918, DOI 10.17487/RFC1918, February 1996, . [BCP6] Best Current Practice 6, . At the time of writing, this BCP comprises the following: J. Hawkinson, T. Bates, "Guidelines for creation, selection, and registration of an Autonomous System (AS)", BCP 6, RFC 1930, DOI 10.17487/RFC1930, March 1996, . J. Mitchell, "Autonomous System (AS) Reservation for Private Use", BCP 6, RFC 6996, DOI 10.17487/RFC6996, July 2013, . J. Haas, J. Mitchell, "Reservation of Last Autonomous System (AS) Numbers", BCP 6, RFC 7300, DOI 10.17487/RFC7300, July 2014, . [BCP7] Best Current Practice 7, . At the time of writing, this BCP comprises the following: Y. Rekhter, T. Li, "Implications of Various Address Allocation Policies for Internet Routing", BCP 7, RFC 2008, DOI 10.17487/RFC2008, October 1996, . [BCP8] Best Current Practice 8, . At the time of writing, this BCP comprises the following: A. Weinrib, J. Postel, "IRTF Research Group Guidelines and Procedures", BCP 8, RFC 2014, DOI 10.17487/RFC2014, October 1996, . [BCP9] Best Current Practice 9, . At the time of writing, this BCP comprises the following: S. Bradner, "The Internet Standards Process -- Revision 3", BCP 9, RFC 2026, DOI 10.17487/RFC2026, October 1996, . L. Dusseault, R. Sparks, "Guidance on Interoperation and Implementation Reports for Advancement to Draft Standard", BCP 9, RFC 5657, DOI 10.17487/RFC5657, September 2009, . R. Housley, D. Crocker, E. Burger, "Reducing the Standards Track to Two Maturity Levels", BCP 9, RFC 6410, DOI 10.17487/RFC6410, October 2011, . P. Resnick, "Retirement of the "Internet Official Protocol Standards" Summary Document", BCP 9, RFC 7100, DOI 10.17487/RFC7100, December 2013, . O. Kolkman, S. Bradner, S. Turner, "Characterization of Proposed Standards", BCP 9, RFC 7127, DOI 10.17487/RFC7127, January 2014, . S. Dawkins, "Increasing the Number of Area Directors in an IETF Area", BCP 9, RFC 7475, DOI 10.17487/RFC7475, March 2015, . J. Halpern, Ed., E. Rescorla, Ed., "IETF Stream Documents Require IETF Rough Consensus", BCP 9, RFC 8789, DOI 10.17487/RFC8789, June 2020, . B. Rosen, "Responsibility Change for the RFC Series", BCP 9, RFC 9282, DOI 10.17487/RFC9282, June 2022, . [BCP10] Best Current Practice 10, . At the time of writing, this BCP comprises the following: M. Kucherawy, Ed., R. Hinden, Ed., J. Livingood, Ed., "IAB, IESG, IETF Trust, and IETF LLC Selection, Confirmation, and Recall Process: Operation of the IETF Nominating and Recall Committees", BCP 10, RFC 8713, DOI 10.17487/RFC8713, February 2020, . M. Duke, "Nominating Committee Eligibility", BCP 10, RFC 9389, DOI 10.17487/RFC9389, April 2023, . [BCP11] Best Current Practice 11, . At the time of writing, this BCP comprises the following: R. Salz, "Entities Involved in the IETF Standards Process", BCP 11, RFC 9281, DOI 10.17487/RFC9281, June 2022, . [BCP12] Best Current Practice 12, . At the time of writing, this BCP comprises the following: [BCP13] Best Current Practice 13, . At the time of writing, this BCP comprises the following: N. Freed, J. Klensin, "Multipurpose Internet Mail Extensions (MIME) Part Four: Registration Procedures", BCP 13, RFC 4289, DOI 10.17487/RFC4289, December 2005, . N. Freed, J. Klensin, T. Hansen, "Media Type Specifications and Registration Procedures", BCP 13, RFC 6838, DOI 10.17487/RFC6838, January 2013, . M.J. Dürst, "Guidelines for the Definition of New Top-Level Media Types", BCP 13, RFC 9694, DOI 10.17487/RFC9694, March 2025, . [BCP14] Best Current Practice 14, . At the time of writing, this BCP comprises the following: S. Bradner, "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March 1997, . B. Leiba, "Ambiguity of Uppercase vs Lowercase in RFC 2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174, May 2017, . [BCP15] Best Current Practice 15, . At the time of writing, this BCP comprises the following: H. Alvestrand, P. Jurg, "Deployment of the Internet White Pages Service", BCP 15, RFC 2148, DOI 10.17487/RFC2148, September 1997, . [BCP16] Best Current Practice 16, . At the time of writing, this BCP comprises the following: R. Elz, R. Bush, S. Bradner, M. Patton, "Selection and Operation of Secondary DNS Servers", BCP 16, RFC 2182, DOI 10.17487/RFC2182, July 1997, . [BCP17] Best Current Practice 17, . At the time of writing, this BCP comprises the following: M. Hamilton, R. Wright, "Use of DNS Aliases for Network Services", BCP 17, RFC 2219, DOI 10.17487/RFC2219, October 1997, . [BCP18] Best Current Practice 18, . At the time of writing, this BCP comprises the following: H. Alvestrand, "IETF Policy on Character Sets and Languages", BCP 18, RFC 2277, DOI 10.17487/RFC2277, January 1998, . [BCP19] Best Current Practice 19, . At the time of writing, this BCP comprises the following: N. Freed, J. Postel, "IANA Charset Registration Procedures", BCP 19, RFC 2978, DOI 10.17487/RFC2978, October 2000, . [BCP20] Best Current Practice 20, . At the time of writing, this BCP comprises the following: H. Eidnes, G. de Groot, P. Vixie, "Classless IN-ADDR.ARPA delegation", BCP 20, RFC 2317, DOI 10.17487/RFC2317, March 1998, . [BCP21] Best Current Practice 21, . At the time of writing, this BCP comprises the following: N. Brownlee, E. Guttman, "Expectations for Computer Security Incident Response", BCP 21, RFC 2350, DOI 10.17487/RFC2350, June 1998, . [BCP22] Best Current Practice 22, . At the time of writing, this BCP comprises the following: G. Scott, "Guide for Internet Standards Writers", BCP 22, RFC 2360, DOI 10.17487/RFC2360, June 1998, . [BCP23] Best Current Practice 23, . At the time of writing, this BCP comprises the following: D. Meyer, "Administratively Scoped IP Multicast", BCP 23, RFC 2365, DOI 10.17487/RFC2365, July 1998, . [BCP24] Best Current Practice 24, . At the time of writing, this BCP comprises the following: L. Berger, "RSVP over ATM Implementation Guidelines", BCP 24, RFC 2379, DOI 10.17487/RFC2379, August 1998, . [BCP25] Best Current Practice 25, . At the time of writing, this BCP comprises the following: S. Bradner, "IETF Working Group Guidelines and Procedures", BCP 25, RFC 2418, DOI 10.17487/RFC2418, September 1998, . P. Resnick, A. Farrel, "IETF Anti-Harassment Procedures", BCP 25, RFC 7776, DOI 10.17487/RFC7776, March 2016, . P. Resnick, A. Farrel, "Update to the IETF Anti-Harassment Procedures for the Replacement of the IETF Administrative Oversight Committee (IAOC) with the IETF Administration LLC", BCP 25, RFC 8716, DOI 10.17487/RFC8716, February 2020, . [BCP26] Best Current Practice 26, . At the time of writing, this BCP comprises the following: M. Cotton, B. Leiba, T. Narten, "Guidelines for Writing an IANA Considerations Section in RFCs", BCP 26, RFC 8126, DOI 10.17487/RFC8126, June 2017, . [BCP27] Best Current Practice 27, . At the time of writing, this BCP comprises the following: M. O'Dell, H. Alvestrand, B. Wijnen, S. Bradner, "Advancement of MIB specifications on the IETF Standards Track", BCP 27, RFC 2438, DOI 10.17487/RFC2438, October 1998, . [BCP28] Best Current Practice 28, . At the time of writing, this BCP comprises the following: M. Allman, D. Glover, L. Sanchez, "Enhancing TCP Over Satellite Channels using Standard Mechanisms", BCP 28, RFC 2488, DOI 10.17487/RFC2488, January 1999, . [BCP29] Best Current Practice 29, . At the time of writing, this BCP comprises the following: R. Droms, "Procedure for Defining New DHCP Options", BCP 29, RFC 2489, DOI 10.17487/RFC2489, January 1999, . [BCP30] Best Current Practice 30, . At the time of writing, this BCP comprises the following: G. Lindberg, "Anti-Spam Recommendations for SMTP MTAs", BCP 30, RFC 2505, DOI 10.17487/RFC2505, February 1999, . [BCP31] Best Current Practice 31, . At the time of writing, this BCP comprises the following: K. Holtman, A. Mutz, T. Hardie, "Media Feature Tag Registration Procedure", BCP 31, RFC 2506, DOI 10.17487/RFC2506, March 1999, . [BCP32] Best Current Practice 32, . At the time of writing, this BCP comprises the following: D. Eastlake 3rd, A. Panitz, "Reserved Top Level DNS Names", BCP 32, RFC 2606, DOI 10.17487/RFC2606, June 1999, . [BCP33] Best Current Practice 33, . At the time of writing, this BCP comprises the following: L. Daigle, D. van Gulik, R. Iannella, P. Faltstrom, "URN Namespace Definition Mechanisms", BCP 33, RFC 2611, DOI 10.17487/RFC2611, June 1999, . [BCP34] Best Current Practice 34, . At the time of writing, this BCP comprises the following: D. Senie, "Changing the Default for Directed Broadcasts in Routers", BCP 34, RFC 2644, DOI 10.17487/RFC2644, August 1999, . [BCP35] Best Current Practice 35, . At the time of writing, this BCP comprises the following: D. Thaler, Ed., T. Hansen, T. Hardie, "Guidelines and Registration Procedures for URI Schemes", BCP 35, RFC 7595, DOI 10.17487/RFC7595, June 2015, . [BCP36] Best Current Practice 36, . At the time of writing, this BCP comprises the following: M. Handley, C. Perkins, "Guidelines for Writers of RTP Payload Format Specifications", BCP 36, RFC 2736, DOI 10.17487/RFC2736, December 1999, . [BCP37] Best Current Practice 37, . At the time of writing, this BCP comprises the following: S. Bradner, V. Paxson, "IANA Allocation Guidelines For Values In the Internet Protocol and Related Headers", BCP 37, RFC 2780, DOI 10.17487/RFC2780, March 2000, . J. Arkko, S. Bradner, "IANA Allocation Guidelines for the Protocol Field", BCP 37, RFC 5237, DOI 10.17487/RFC5237, February 2008, . [BCP38] Best Current Practice 38, . At the time of writing, this BCP comprises the following: P. Ferguson, D. Senie, "Network Ingress Filtering: Defeating Denial of Service Attacks which employ IP Source Address Spoofing", BCP 38, RFC 2827, DOI 10.17487/RFC2827, May 2000, . [BCP39] Best Current Practice 39, . At the time of writing, this BCP comprises the following: Internet Architecture Board, B. Carpenter, Ed., "Charter of the Internet Architecture Board (IAB)", BCP 39, RFC 2850, DOI 10.17487/RFC2850, May 2000, . B. Carpenter, Ed., "IAB Charter Update for RFC Editor Model", BCP 39, RFC 9283, DOI 10.17487/RFC9283, June 2022, . [BCP40] Best Current Practice 40, . At the time of writing, this BCP comprises the following: M. Blanchet, L-J. Liman, "DNS Root Name Service Protocol and Deployment Requirements", BCP 40, RFC 7720, DOI 10.17487/RFC7720, December 2015, . [BCP41] Best Current Practice 41, . At the time of writing, this BCP comprises the following: S. Floyd, "Congestion Control Principles", BCP 41, RFC 2914, DOI 10.17487/RFC2914, September 2000, . B. Briscoe, J. Manner, "Byte and Packet Congestion Notification", BCP 41, RFC 7141, DOI 10.17487/RFC7141, February 2014, . [BCP42] Best Current Practice 42, . At the time of writing, this BCP comprises the following: D. Eastlake 3rd, "Domain Name System (DNS) IANA Considerations", BCP 42, RFC 6895, DOI 10.17487/RFC6895, April 2013, . [BCP43] Best Current Practice 43, . At the time of writing, this BCP comprises the following: R. Droms, "Procedures and IANA Guidelines for Definition of New DHCP Options and Message Types", BCP 43, RFC 2939, DOI 10.17487/RFC2939, September 2000, . [BCP44] Best Current Practice 44, . At the time of writing, this BCP comprises the following: K. Moore, N. Freed, "Use of HTTP State Management", BCP 44, RFC 2964, DOI 10.17487/RFC2964, October 2000, . [BCP45] Best Current Practice 45, . At the time of writing, this BCP comprises the following: L. Eggert, S. Harris, "IETF Discussion List Charter", BCP 45, RFC 9245, DOI 10.17487/RFC9245, June 2022, . [BCP46] Best Current Practice 46, . At the time of writing, this BCP comprises the following: T. Killalea, "Recommended Internet Service Provider Security Services and Procedures", BCP 46, RFC 3013, DOI 10.17487/RFC3013, November 2000, . [BCP47] Best Current Practice 47, . At the time of writing, this BCP comprises the following: A. Phillips, Ed., M. Davis, Ed., "Matching of Language Tags", BCP 47, RFC 4647, DOI 10.17487/RFC4647, September 2006, . A. Phillips, Ed., M. Davis, Ed., "Tags for Identifying Languages", BCP 47, RFC 5646, DOI 10.17487/RFC5646, September 2009, . [BCP48] Best Current Practice 48, . At the time of writing, this BCP comprises the following: S. Dawkins, G. Montenegro, M. Kojo, V. Magret, "End-to-end Performance Implications of Slow Links", BCP 48, RFC 3150, DOI 10.17487/RFC3150, July 2001, . [BCP49] Best Current Practice 49, . At the time of writing, this BCP comprises the following: R. Bush, "Delegation of IP6.ARPA", BCP 49, RFC 3152, DOI 10.17487/RFC3152, August 2001, . [BCP50] Best Current Practice 50, . At the time of writing, this BCP comprises the following: S. Dawkins, G. Montenegro, M. Kojo, V. Magret, N. Vaidya, "End-to-end Performance Implications of Links with Errors", BCP 50, RFC 3155, DOI 10.17487/RFC3155, August 2001, . [BCP51] Best Current Practice 51, . At the time of writing, this BCP comprises the following: M. Cotton, L. Vegoda, D. Meyer, "IANA Guidelines for IPv4 Multicast Address Assignments", BCP 51, RFC 5771, DOI 10.17487/RFC5771, March 2010, . [BCP52] Best Current Practice 52, . At the time of writing, this BCP comprises the following: G. Huston, Ed., "Management Guidelines & Operational Requirements for the Address and Routing Parameter Area Domain ("arpa")", BCP 52, RFC 3172, DOI 10.17487/RFC3172, September 2001, . [BCP53] Best Current Practice 53, . At the time of writing, this BCP comprises the following: D. Meyer, P. Lothberg, "GLOP Addressing in 233/8", BCP 53, RFC 3180, DOI 10.17487/RFC3180, September 2001, . [BCP54] Best Current Practice 54, . At the time of writing, this BCP comprises the following: S. Moonesamy, Ed., "IETF Guidelines for Conduct", BCP 54, RFC 7154, DOI 10.17487/RFC7154, March 2014, . [BCP55] Best Current Practice 55, . At the time of writing, this BCP comprises the following: D. Brezinski, T. Killalea, "Guidelines for Evidence Collection and Archiving", BCP 55, RFC 3227, DOI 10.17487/RFC3227, February 2002, . [BCP56] Best Current Practice 56, . At the time of writing, this BCP comprises the following: M. Nottingham, "Building Protocols with HTTP", BCP 56, RFC 9205, DOI 10.17487/RFC9205, June 2022, . [BCP57] Best Current Practice 57, . At the time of writing, this BCP comprises the following: B. Haberman, Ed., "IANA Considerations for Internet Group Management Protocols", BCP 57, RFC 9778, DOI 10.17487/RFC9778, March 2025, . [BCP58] Best Current Practice 58, . At the time of writing, this BCP comprises the following: P. Hoffman, S. Bradner, "Defining the IETF", BCP 58, RFC 3233, DOI 10.17487/RFC3233, February 2002, . [BCP59] Best Current Practice 59, . At the time of writing, this BCP comprises the following: M. Rose, "A Transient Prefix for Identifying Profiles under Development by the Working Groups of the Internet Engineering Task Force", BCP 59, RFC 3349, DOI 10.17487/RFC3349, August 2002, . [BCP60] Best Current Practice 60, . At the time of writing, this BCP comprises the following: S. Floyd, "Inappropriate TCP Resets Considered Harmful", BCP 60, RFC 3360, DOI 10.17487/RFC3360, August 2002, . [BCP61] Best Current Practice 61, . At the time of writing, this BCP comprises the following: J. Schiller, "Strong Security Requirements for Internet Engineering Task Force Standard Protocols", BCP 61, RFC 3365, DOI 10.17487/RFC3365, August 2002, . [BCP62] Best Current Practice 62, . At the time of writing, this BCP comprises the following: G. Fairhurst, L. Wood, "Advice to link designers on link Automatic Repeat reQuest (ARQ)", BCP 62, RFC 3366, DOI 10.17487/RFC3366, September 2002, . [BCP63] Best Current Practice 63, . At the time of writing, this BCP comprises the following: A. Vemuri, J. Peterson, "Session Initiation Protocol for Telephones (SIP-T): Context and Architectures", BCP 63, RFC 3372, DOI 10.17487/RFC3372, September 2002, . [BCP64] Best Current Practice 64, . At the time of writing, this BCP comprises the following: K. Zeilenga, "Internet Assigned Numbers Authority (IANA) Considerations for the Lightweight Directory Access Protocol (LDAP)", BCP 64, RFC 4520, DOI 10.17487/RFC4520, June 2006, . [BCP65] Best Current Practice 65, . At the time of writing, this BCP comprises the following: M. Mealling, "Dynamic Delegation Discovery System (DDDS) Part Five: URI.ARPA Assignment Procedures", BCP 65, RFC 3405, DOI 10.17487/RFC3405, October 2002, . T. Hardie, "Updated Registration Rules for URI.ARPA", BCP 65, RFC 8958, DOI 10.17487/RFC8958, December 2020, . [BCP66] Best Current Practice 66, . At the time of writing, this BCP comprises the following: [BCP67] Best Current Practice 67, . At the time of writing, this BCP comprises the following: J. Peterson, C. Jennings, R. Sparks, "Change Process for the Session Initiation Protocol (SIP) and the Real-time Applications and Infrastructure Area", BCP 67, RFC 5727, DOI 10.17487/RFC5727, March 2010, . B. Campbell, Ed., A. Cooper, B. Leiba, "DISPATCH-Style Working Groups and the SIP Change Process", BCP 67, RFC 7957, DOI 10.17487/RFC7957, August 2016, . [BCP68] Best Current Practice 68, . At the time of writing, this BCP comprises the following: W. Townsley, "Layer Two Tunneling Protocol (L2TP) Internet Assigned Numbers Authority (IANA) Considerations Update", BCP 68, RFC 3438, DOI 10.17487/RFC3438, December 2002, . [BCP69] Best Current Practice 69, . At the time of writing, this BCP comprises the following: H. Balakrishnan, V. Padmanabhan, G. Fairhurst, M. Sooriyabandara, "TCP Performance Implications of Network Path Asymmetry", BCP 69, RFC 3449, DOI 10.17487/RFC3449, December 2002, . [BCP70] Best Current Practice 70, . At the time of writing, this BCP comprises the following: S. Hollenbeck, M. Rose, L. Masinter, "Guidelines for the Use of Extensible Markup Language (XML) within IETF Protocols", BCP 70, RFC 3470, DOI 10.17487/RFC3470, January 2003, . [BCP71] Best Current Practice 71, . At the time of writing, this BCP comprises the following: H. Inamura, Ed., G. Montenegro, Ed., R. Ludwig, A. Gurtov, F. Khafizov, "TCP over Second (2.5G) and Third (3G) Generation Wireless Networks", BCP 71, RFC 3481, DOI 10.17487/RFC3481, February 2003, . [BCP72] Best Current Practice 72, . At the time of writing, this BCP comprises the following: E. Rescorla, B. Korver, "Guidelines for Writing RFC Text on Security Considerations", BCP 72, RFC 3552, DOI 10.17487/RFC3552, July 2003, . F. Gont, I. Arce, "Security Considerations for Transient Numeric Identifiers Employed in Network Protocols", BCP 72, RFC 9416, DOI 10.17487/RFC9416, July 2023, . [BCP73] Best Current Practice 73, . At the time of writing, this BCP comprises the following: M. Mealling, L. Masinter, T. Hardie, G. Klyne, "An IETF URN Sub-namespace for Registered Protocol Parameters", BCP 73, RFC 3553, DOI 10.17487/RFC3553, June 2003, . [BCP74] Best Current Practice 74, . At the time of writing, this BCP comprises the following: R. Frye, D. Levi, S. Routhier, B. Wijnen, "Coexistence between Version 1, Version 2, and Version 3 of the Internet-standard Network Management Framework", BCP 74, RFC 3584, DOI 10.17487/RFC3584, August 2003, . [BCP75] Best Current Practice 75, . At the time of writing, this BCP comprises the following: A. Johnston, S. Donovan, R. Sparks, C. Cunningham, K. Summers, "Session Initiation Protocol (SIP) Basic Call Flow Examples", BCP 75, RFC 3665, DOI 10.17487/RFC3665, January 2004, . [BCP76] Best Current Practice 76, . At the time of writing, this BCP comprises the following: A. Johnston, S. Donovan, R. Sparks, C. Cunningham, K. Summers, "Session Initiation Protocol (SIP) Public Switched Telephone Network (PSTN) Call Flows", BCP 76, RFC 3666, DOI 10.17487/RFC3666, January 2004, . [BCP77] Best Current Practice 77, . At the time of writing, this BCP comprises the following: L. Daigle, Ed., Internet Architecture Board, "IETF ISOC Board of Trustee Appointment Procedures", BCP 77, RFC 3677, DOI 10.17487/RFC3677, December 2003, . [BCP78] Best Current Practice 78, . At the time of writing, this BCP comprises the following: S. Bradner, Ed., J. Contreras, Ed., "Rights Contributors Provide to the IETF Trust", BCP 78, RFC 5378, DOI 10.17487/RFC5378, November 2008, . [BCP79] Best Current Practice 79, . At the time of writing, this BCP comprises the following: S. Bradner, J. Contreras, "Intellectual Property Rights in IETF Technology", BCP 79, RFC 8179, DOI 10.17487/RFC8179, May 2017, . [BCP80] Best Current Practice 80, . At the time of writing, this BCP comprises the following: R. Bush, R. Fink, "Delegation of E.F.F.3.IP6.ARPA", BCP 80, RFC 3681, DOI 10.17487/RFC3681, January 2004, . [BCP81] Best Current Practice 81, . At the time of writing, this BCP comprises the following: M. Mealling, "The IETF XML Registry", BCP 81, RFC 3688, DOI 10.17487/RFC3688, January 2004, . [BCP82] Best Current Practice 82, . At the time of writing, this BCP comprises the following: T. Narten, "Assigning Experimental and Testing Numbers Considered Useful", BCP 82, RFC 3692, DOI 10.17487/RFC3692, January 2004, . [BCP83] Best Current Practice 83, . At the time of writing, this BCP comprises the following: [BCP84] Best Current Practice 84, . At the time of writing, this BCP comprises the following: F. Baker, P. Savola, "Ingress Filtering for Multihomed Networks", BCP 84, RFC 3704, DOI 10.17487/RFC3704, March 2004, . K. Sriram, D. Montgomery, J. Haas, "Enhanced Feasible-Path Unicast Reverse Path Forwarding", BCP 84, RFC 8704, DOI 10.17487/RFC8704, February 2020, . [BCP85] Best Current Practice 85, . At the time of writing, this BCP comprises the following: J. Rosenberg, J. Peterson, H. Schulzrinne, G. Camarillo, "Best Current Practices for Third Party Call Control (3pcc) in the Session Initiation Protocol (SIP)", BCP 85, RFC 3725, DOI 10.17487/RFC3725, April 2004, . [BCP86] Best Current Practice 86, . At the time of writing, this BCP comprises the following: H. Orman, P. Hoffman, "Determining Strengths For Public Keys Used For Exchanging Symmetric Keys", BCP 86, RFC 3766, DOI 10.17487/RFC3766, April 2004, . [BCP87] Best Current Practice 87, . At the time of writing, this BCP comprises the following: F. Le Faucheur, R. Uppili, A. Vedrenne, P. Merckx, T. Telkamp, "Use of Interior Gateway Protocol (IGP) Metric as a second MPLS Traffic Engineering (TE) Metric", BCP 87, RFC 3785, DOI 10.17487/RFC3785, May 2004, . [BCP88] Best Current Practice 88, . At the time of writing, this BCP comprises the following: V. Schryver, "IANA Considerations for the Point-to-Point Protocol (PPP)", BCP 88, RFC 3818, DOI 10.17487/RFC3818, June 2004, . [BCP89] Best Current Practice 89, . At the time of writing, this BCP comprises the following: P. Karn, Ed., C. Bormann, G. Fairhurst, D. Grossman, R. Ludwig, J. Mahdavi, G. Montenegro, J. Touch, L. Wood, "Advice for Internet Subnetwork Designers", BCP 89, RFC 3819, DOI 10.17487/RFC3819, July 2004, . B. Briscoe, J. Kaippallimalil, "Guidelines for Adding Congestion Notification to Protocols that Encapsulate IP", BCP 89, RFC 9599, DOI 10.17487/RFC9599, August 2024, . [BCP90] Best Current Practice 90, . At the time of writing, this BCP comprises the following: G. Klyne, M. Nottingham, J. Mogul, "Registration Procedures for Message Header Fields", BCP 90, RFC 3864, DOI 10.17487/RFC3864, September 2004, . [BCP91] Best Current Practice 91, . At the time of writing, this BCP comprises the following: A. Durand, J. Ihren, "DNS IPv6 Transport Operational Guidelines", BCP 91, RFC 3901, DOI 10.17487/RFC3901, September 2004, . [BCP92] Best Current Practice 92, . At the time of writing, this BCP comprises the following: H. Alvestrand, R. Housley, "IESG Procedures for Handling of Independent and IRTF Stream Submissions", BCP 92, RFC 5742, DOI 10.17487/RFC5742, December 2009, . [BCP93] Best Current Practice 93, . At the time of writing, this BCP comprises the following: J. Klensin, S. Dawkins, "A Model for IETF Process Experiments", BCP 93, RFC 3933, DOI 10.17487/RFC3933, November 2004, . [BCP94] Best Current Practice 94 currently contains no RFCs [BCP95] Best Current Practice 95, . At the time of writing, this BCP comprises the following: H. Alvestrand, "A Mission Statement for the IETF", BCP 95, RFC 3935, DOI 10.17487/RFC3935, October 2004, . [BCP96] Best Current Practice 96, . At the time of writing, this BCP comprises the following: K. Kompella, J. Lang, "Procedures for Modifying the Resource reSerVation Protocol (RSVP)", BCP 96, RFC 3936, DOI 10.17487/RFC3936, October 2004, . [BCP97] Best Current Practice 97, . At the time of writing, this BCP comprises the following: R. Bush, T. Narten, "Clarifying when Standards Track Documents may Refer Normatively to Documents at a Lower Level", BCP 97, RFC 3967, DOI 10.17487/RFC3967, January 2005, . J. Klensin, S. Hartman, "Handling Normative References to Standards-Track Documents", BCP 97, RFC 4897, DOI 10.17487/RFC4897, June 2007, . B. Leiba, "Updating When Standards Track Documents May Refer Normatively to Documents at a Lower Level", BCP 97, RFC 8067, DOI 10.17487/RFC8067, January 2017, . [BCP98] Best Current Practice 98, . At the time of writing, this BCP comprises the following: G. Camarillo, "The Internet Assigned Number Authority (IANA) Header Field Parameter Registry for the Session Initiation Protocol (SIP)", BCP 98, RFC 3968, DOI 10.17487/RFC3968, December 2004, . [BCP99] Best Current Practice 99, . At the time of writing, this BCP comprises the following: G. Camarillo, "The Internet Assigned Number Authority (IANA) Uniform Resource Identifier (URI) Parameter Registry for the Session Initiation Protocol (SIP)", BCP 99, RFC 3969, DOI 10.17487/RFC3969, December 2004, . [BCP100] Best Current Practice 100, . At the time of writing, this BCP comprises the following: M. Cotton, "Early IANA Allocation of Standards Track Code Points", BCP 100, RFC 7120, DOI 10.17487/RFC7120, January 2014, . [BCP101] Best Current Practice 101, . At the time of writing, this BCP comprises the following: B. Haberman, J. Hall, J. Livingood, "Structure of the IETF Administrative Support Activity, Version 2.0", BCP 101, RFC 8711, DOI 10.17487/RFC8711, February 2020, . J. Arkko, T. Hardie, "Update to the Process for Selection of Trustees for the IETF Trust", BCP 101, RFC 8714, DOI 10.17487/RFC8714, February 2020, . J. Klensin, Ed., "IETF Administrative Support Activity 2.0: Consolidated Updates to IETF Administrative Terminology", BCP 101, RFC 8717, DOI 10.17487/RFC8717, February 2020, . [BCP102] Best Current Practice 102, . At the time of writing, this BCP comprises the following: L. Daigle, Ed., Internet Architecture Board, "IAB Processes for Management of IETF Liaison Relationships", BCP 102, RFC 4052, DOI 10.17487/RFC4052, April 2005, . [BCP103] Best Current Practice 103, . At the time of writing, this BCP comprises the following: S. Trowbridge, S. Bradner, F. Baker, "Procedures for Handling Liaison Statements to and from the IETF", BCP 103, RFC 4053, DOI 10.17487/RFC4053, April 2005, . [BCP104] Best Current Practice 104, . At the time of writing, this BCP comprises the following: J. Klensin, "Terminology for Describing Internet Connectivity", BCP 104, RFC 4084, DOI 10.17487/RFC4084, May 2005, . [BCP105] Best Current Practice 105, . At the time of writing, this BCP comprises the following: D. Plonka, "Embedding Globally-Routable Internet Addresses Considered Harmful", BCP 105, RFC 4085, DOI 10.17487/RFC4085, June 2005, . [BCP106] Best Current Practice 106, . At the time of writing, this BCP comprises the following: D. Eastlake 3rd, J. Schiller, S. Crocker, "Randomness Requirements for Security", BCP 106, RFC 4086, DOI 10.17487/RFC4086, June 2005, . [BCP107] Best Current Practice 107, . At the time of writing, this BCP comprises the following: S. Bellovin, R. Housley, "Guidelines for Cryptographic Key Management", BCP 107, RFC 4107, DOI 10.17487/RFC4107, June 2005, . [BCP108] Best Current Practice 108, . At the time of writing, this BCP comprises the following: E. Stephan, "IP Performance Metrics (IPPM) Metrics Registry", BCP 108, RFC 4148, DOI 10.17487/RFC4148, August 2005, . [BCP109] Best Current Practice 109, . At the time of writing, this BCP comprises the following: G. Huston, "Deprecation of "ip6.int"", BCP 109, RFC 4159, DOI 10.17487/RFC4159, August 2005, . [BCP110] Best Current Practice 110, . At the time of writing, this BCP comprises the following: B. Thompson, T. Koren, D. Wing, "Tunneling Multiplexed Compressed RTP (TCRTP)", BCP 110, RFC 4170, DOI 10.17487/RFC4170, November 2005, . [BCP111] Best Current Practice 111, . At the time of writing, this BCP comprises the following: C. Heard, Ed., "Guidelines for Authors and Reviewers of MIB Documents", BCP 111, RFC 4181, DOI 10.17487/RFC4181, September 2005, . C. Heard, Ed., "RFC 4181 Update to Recognize the IETF Trust", BCP 111, RFC 4841, DOI 10.17487/RFC4841, March 2007, . [BCP112] Best Current Practice 112, . At the time of writing, this BCP comprises the following: G. Choudhury, Ed., "Prioritized Treatment of Specific OSPF Version 2 Packets and Congestion Avoidance", BCP 112, RFC 4222, DOI 10.17487/RFC4222, October 2005, . [BCP113] Best Current Practice 113, . At the time of writing, this BCP comprises the following: [BCP114] Best Current Practice 114, . At the time of writing, this BCP comprises the following: D. Meyer, "BGP Communities for Data Collection", BCP 114, RFC 4384, DOI 10.17487/RFC4384, February 2006, . [BCP115] Best Current Practice 115 currently contains no RFCs [BCP116] Best Current Practice 116, . At the time of writing, this BCP comprises the following: L. Martini, "IANA Allocations for Pseudowire Edge to Edge Emulation (PWE3)", BCP 116, RFC 4446, DOI 10.17487/RFC4446, April 2006, . [BCP117] Best Current Practice 117, . At the time of writing, this BCP comprises the following: J. Elwell, F. Derks, P. Mourot, O. Rousseau, "Interworking between the Session Initiation Protocol (SIP) and QSIG", BCP 117, RFC 4497, DOI 10.17487/RFC4497, May 2006, . [BCP118] Best Current Practice 118, . At the time of writing, this BCP comprises the following: K. Zeilenga, "Considerations for Lightweight Directory Access Protocol (LDAP) Extensions", BCP 118, RFC 4521, DOI 10.17487/RFC4521, June 2006, . [BCP119] Best Current Practice 119, . At the time of writing, this BCP comprises the following: A. Johnston, O. Levin, "Session Initiation Protocol (SIP) Call Control - Conferencing for User Agents", BCP 119, RFC 4579, DOI 10.17487/RFC4579, August 2006, . [BCP120] Best Current Practice 120, . At the time of writing, this BCP comprises the following: D. Meyer, R. Rockell, G. Shepherd, "Source-Specific Protocol Independent Multicast in 232/8", BCP 120, RFC 4608, DOI 10.17487/RFC4608, August 2006, . [BCP121] Best Current Practice 121, . At the time of writing, this BCP comprises the following: M. McBride, J. Meylor, D. Meyer, "Multicast Source Discovery Protocol (MSDP) Deployment Scenarios", BCP 121, RFC 4611, DOI 10.17487/RFC4611, August 2006, . [BCP122] Best Current Practice 122, . At the time of writing, this BCP comprises the following: V. Fuller, T. Li, "Classless Inter-domain Routing (CIDR): The Internet Address Assignment and Aggregation Plan", BCP 122, RFC 4632, DOI 10.17487/RFC4632, August 2006, . [BCP123] Best Current Practice 123, . At the time of writing, this BCP comprises the following: M. Larson, P. Barber, "Observed DNS Resolution Misbehavior", BCP 123, RFC 4697, DOI 10.17487/RFC4697, October 2006, . [BCP124] Best Current Practice 124, . At the time of writing, this BCP comprises the following: S. Floyd, "Specifying Alternate Semantics for the Explicit Congestion Notification (ECN) Field", BCP 124, RFC 4774, DOI 10.17487/RFC4774, November 2006, . [BCP125] Best Current Practice 125, . At the time of writing, this BCP comprises the following: S. Bradner, B. Carpenter, Ed., T. Narten, "Procedures for Protocol Extensions and Variations", BCP 125, RFC 4775, DOI 10.17487/RFC4775, December 2006, . [BCP126] Best Current Practice 126, . At the time of writing, this BCP comprises the following: J. Abley, K. Lindqvist, "Operation of Anycast Services", BCP 126, RFC 4786, DOI 10.17487/RFC4786, December 2006, . [BCP127] Best Current Practice 127, . At the time of writing, this BCP comprises the following: F. Audet, Ed., C. Jennings, "Network Address Translation (NAT) Behavioral Requirements for Unicast UDP", BCP 127, RFC 4787, DOI 10.17487/RFC4787, January 2007, . S. Perreault, Ed., I. Yamagata, S. Miyakawa, A. Nakagawa, H. Ashida, "Common Requirements for Carrier-Grade NATs (CGNs)", BCP 127, RFC 6888, DOI 10.17487/RFC6888, April 2013, . R. Penno, S. Perreault, M. Boucadair, Ed., S. Sivakumar, K. Naito, "Updates to Network Address Translation (NAT) Behavioral Requirements", BCP 127, RFC 7857, DOI 10.17487/RFC7857, April 2016, . [BCP128] Best Current Practice 128, . At the time of writing, this BCP comprises the following: G. Swallow, S. Bryant, L. Andersson, "Avoiding Equal Cost Multipath Treatment in MPLS Networks", BCP 128, RFC 4928, DOI 10.17487/RFC4928, June 2007, . [BCP129] Best Current Practice 129, . At the time of writing, this BCP comprises the following: L. Andersson, Ed., A. Farrel, Ed., "Change Process for Multiprotocol Label Switching (MPLS) and Generalized MPLS (GMPLS) Protocols and Procedures", BCP 129, RFC 4929, DOI 10.17487/RFC4929, June 2007, . [BCP130] Best Current Practice 130, . At the time of writing, this BCP comprises the following: K. Kompella, B. Fenner, "IANA Considerations for OSPF", BCP 130, RFC 4940, DOI 10.17487/RFC4940, July 2007, . [BCP131] Best Current Practice 131, . At the time of writing, this BCP comprises the following: D. Wing, "Symmetric RTP / RTP Control Protocol (RTCP)", BCP 131, RFC 4961, DOI 10.17487/RFC4961, July 2007, . [BCP132] Best Current Practice 132, . At the time of writing, this BCP comprises the following: R. Housley, B. Aboba, "Guidance for Authentication, Authorization, and Accounting (AAA) Key Management", BCP 132, RFC 4962, DOI 10.17487/RFC4962, July 2007, . [BCP133] Best Current Practice 133, . At the time of writing, this BCP comprises the following: M. Duke, Ed., G. Fairhurst, Ed., "Specifying New Congestion Control Algorithms", BCP 133, RFC 9743, DOI 10.17487/RFC9743, March 2025, . [BCP134] Best Current Practice 134, . At the time of writing, this BCP comprises the following: C. Hutzler, D. Crocker, P. Resnick, E. Allman, T. Finch, "Email Submission Operations: Access and Accountability Requirements", BCP 134, RFC 5068, DOI 10.17487/RFC5068, November 2007, . [BCP135] Best Current Practice 135, . At the time of writing, this BCP comprises the following: D. Wing, T. Eckert, "IP Multicast Requirements for a Network Address Translator (NAT) and a Network Address Port Translator (NAPT)", BCP 135, RFC 5135, DOI 10.17487/RFC5135, February 2008, . [BCP136] Best Current Practice 136, . At the time of writing, this BCP comprises the following: V. Devarapalli, P. Eronen, "Secure Connectivity and Mobility Using Mobile IPv4 and IKEv2 Mobility and Multihoming (MOBIKE)", BCP 136, RFC 5266, DOI 10.17487/RFC5266, June 2008, . [BCP137] Best Current Practice 137, . At the time of writing, this BCP comprises the following: J. Klensin, "ASCII Escaping of Unicode Characters", BCP 137, RFC 5137, DOI 10.17487/RFC5137, February 2008, . [BCP138] Best Current Practice 138, . At the time of writing, this BCP comprises the following: T. Hansen, J. Klensin, "A Registry for SMTP Enhanced Mail System Status Codes", BCP 138, RFC 5248, DOI 10.17487/RFC5248, June 2008, . [BCP139] Best Current Practice 139, . At the time of writing, this BCP comprises the following: D. Harrington, Ed., "Templates for Internet-Drafts Containing MIB Modules", BCP 139, RFC 5249, DOI 10.17487/RFC5249, July 2008, . [BCP140] Best Current Practice 140, . At the time of writing, this BCP comprises the following: J. Damas, F. Neves, "Preventing Use of Recursive Nameservers in Reflector Attacks", BCP 140, RFC 5358, DOI 10.17487/RFC5358, October 2008, . [BCP141] Best Current Practice 141, . At the time of writing, this BCP comprises the following: D. Eastlake 3rd, J. Abley, Y. Li, "IANA Considerations and IETF Protocol and Documentation Usage for IEEE 802 Parameters", BCP 141, RFC 9542, DOI 10.17487/RFC9542, April 2024, . [BCP142] Best Current Practice 142, . At the time of writing, this BCP comprises the following: S. Guha, Ed., K. Biswas, B. Ford, S. Sivakumar, P. Srisuresh, "NAT Behavioral Requirements for TCP", BCP 142, RFC 5382, DOI 10.17487/RFC5382, October 2008, . [BCP143] Best Current Practice 143, . At the time of writing, this BCP comprises the following: R. Gellens, "Deployment Considerations for Lemonade-Compliant Mobile Email", BCP 143, RFC 5383, DOI 10.17487/RFC5383, October 2008, . [BCP144] Best Current Practice 144, . At the time of writing, this BCP comprises the following: A. Johnston, Ed., R. Sparks, C. Cunningham, S. Donovan, K. Summers, "Session Initiation Protocol Service Examples", BCP 144, RFC 5359, DOI 10.17487/RFC5359, October 2008, . [BCP145] Best Current Practice 145, . At the time of writing, this BCP comprises the following: L. Eggert, G. Fairhurst, G. Shepherd, "UDP Usage Guidelines", BCP 145, RFC 8085, DOI 10.17487/RFC8085, March 2017, . [BCP146] Best Current Practice 146, . At the time of writing, this BCP comprises the following: S. Bellovin, "Guidelines for Specifying the Use of IPsec Version 2", BCP 146, RFC 5406, DOI 10.17487/RFC5406, February 2009, . [BCP147] Best Current Practice 147, . At the time of writing, this BCP comprises the following: M. Hasebe, J. Koshiko, Y. Suzuki, T. Yoshikawa, P. Kyzivat, "Example Call Flows of Race Conditions in the Session Initiation Protocol (SIP)", BCP 147, RFC 5407, DOI 10.17487/RFC5407, December 2008, . [BCP148] Best Current Practice 148, . At the time of writing, this BCP comprises the following: P. Srisuresh, B. Ford, S. Sivakumar, S. Guha, "NAT Behavioral Requirements for ICMP", BCP 148, RFC 5508, DOI 10.17487/RFC5508, April 2009, . [BCP149] Best Current Practice 149, . At the time of writing, this BCP comprises the following: R. Sparks, A. Johnston, Ed., D. Petrie, "Session Initiation Protocol (SIP) Call Control - Transfer", BCP 149, RFC 5589, DOI 10.17487/RFC5589, June 2009, . [BCP150] Best Current Practice 150, . At the time of writing, this BCP comprises the following: R. Denis-Courmont, "Network Address Translation (NAT) Behavioral Requirements for the Datagram Congestion Control Protocol", BCP 150, RFC 5597, DOI 10.17487/RFC5597, September 2009, . [BCP151] Best Current Practice 151, . At the time of writing, this BCP comprises the following: C. Groves, Y. Lin, "H.248/MEGACO Registration Procedures", BCP 151, RFC 5615, DOI 10.17487/RFC5615, August 2009, . [BCP152] Best Current Practice 152, . At the time of writing, this BCP comprises the following: R. Bellis, "DNS Proxy Implementation Guidelines", BCP 152, RFC 5625, DOI 10.17487/RFC5625, August 2009, . [BCP153] Best Current Practice 153, . At the time of writing, this BCP comprises the following: J. Weil, V. Kuarsingh, C. Donley, C. Liljenstolpe, M. Azinger, "IANA-Reserved IPv4 Prefix for Shared Address Space", BCP 153, RFC 6598, DOI 10.17487/RFC6598, April 2012, . M. Cotton, L. Vegoda, R. Bonica, Ed., B. Haberman, "Special-Purpose IP Address Registries", BCP 153, RFC 6890, DOI 10.17487/RFC6890, April 2013, . R. Bonica, M. Cotton, B. Haberman, L. Vegoda, "Updates to the Special-Purpose IP Address Registries", BCP 153, RFC 8190, DOI 10.17487/RFC8190, June 2017, . [BCP154] Best Current Practice 154, . At the time of writing, this BCP comprises the following: K. Wolf, A. Mayrhofer, "Considerations for Civic Addresses in the Presence Information Data Format Location Object (PIDF-LO): Guidelines and IANA Registry Definition", BCP 154, RFC 5774, DOI 10.17487/RFC5774, March 2010, . [BCP155] Best Current Practice 155, . At the time of writing, this BCP comprises the following: J. Abley, T. Manderson, "Nameservers for IPv4 and IPv6 Reverse Zones", BCP 155, RFC 5855, DOI 10.17487/RFC5855, May 2010, . [BCP156] Best Current Practice 156, . At the time of writing, this BCP comprises the following: M. Larsen, F. Gont, "Recommendations for Transport-Protocol Port Randomization", BCP 156, RFC 6056, DOI 10.17487/RFC6056, January 2011, . [BCP157] Best Current Practice 157, . At the time of writing, this BCP comprises the following: T. Narten, G. Huston, L. Roberts, "IPv6 Address Assignment to End Sites", BCP 157, RFC 6177, DOI 10.17487/RFC6177, March 2011, . [BCP158] Best Current Practice 158, . At the time of writing, this BCP comprises the following: A. DeKok, Ed., G. Weber, "RADIUS Design Guidelines", BCP 158, RFC 6158, DOI 10.17487/RFC6158, March 2011, . [BCP159] Best Current Practice 159, . At the time of writing, this BCP comprises the following: F. Gont, "Reducing the TIME-WAIT State Using TCP Timestamps", BCP 159, RFC 6191, DOI 10.17487/RFC6191, April 2011, . [BCP160] Best Current Practice 160, . At the time of writing, this BCP comprises the following: R. Barnes, M. Lepinski, A. Cooper, J. Morris, H. Tschofenig, H. Schulzrinne, "An Architecture for Location and Location Privacy in Internet Applications", BCP 160, RFC 6280, DOI 10.17487/RFC6280, July 2011, . [BCP161] Best Current Practice 161, . At the time of writing, this BCP comprises the following: L. Andersson, H. van Helvoort, R. Bonica, D. Romascanu, S. Mansfield, "Guidelines for the Use of the "OAM" Acronym in the IETF", BCP 161, RFC 6291, DOI 10.17487/RFC6291, June 2011, . [BCP162] Best Current Practice 162, . At the time of writing, this BCP comprises the following: A. Durand, I. Gashinsky, D. Lee, S. Sheppard, "Logging Recommendations for Internet-Facing Servers", BCP 162, RFC 6302, DOI 10.17487/RFC6302, June 2011, . [BCP163] Best Current Practice 163, . At the time of writing, this BCP comprises the following: M. Andrews, "Locally Served DNS Zones", BCP 163, RFC 6303, DOI 10.17487/RFC6303, July 2011, . M. Andrews, "Adding 100.64.0.0/10 Prefixes to the IPv4 Locally-Served DNS Zones Registry", BCP 163, RFC 7793, DOI 10.17487/RFC7793, May 2016, . [BCP164] Best Current Practice 164, . At the time of writing, this BCP comprises the following: D. Eastlake 3rd, "IANA Considerations for Network Layer Protocol Identifiers", BCP 164, RFC 6328, DOI 10.17487/RFC6328, July 2011, . [BCP165] Best Current Practice 165, . At the time of writing, this BCP comprises the following: M. Cotton, L. Eggert, J. Touch, M. Westerlund, S. Cheshire, "Internet Assigned Numbers Authority (IANA) Procedures for the Management of the Service Name and Transport Protocol Port Number Registry", BCP 165, RFC 6335, DOI 10.17487/RFC6335, August 2011, . J. Touch, "Recommendations on Using Assigned Transport Port Numbers", BCP 165, RFC 7605, DOI 10.17487/RFC7605, August 2015, . [BCP166] Best Current Practice 166, . At the time of writing, this BCP comprises the following: P. Hoffman, J. Klensin, "Terminology Used in Internationalization in the IETF", BCP 166, RFC 6365, DOI 10.17487/RFC6365, September 2011, . [BCP167] Best Current Practice 167, . At the time of writing, this BCP comprises the following: M. Kucherawy, "DomainKeys Identified Mail (DKIM) and Mailing Lists", BCP 167, RFC 6377, DOI 10.17487/RFC6377, September 2011, . [BCP168] Best Current Practice 168, . At the time of writing, this BCP comprises the following: F. Le Faucheur, Ed., "IP Router Alert Considerations and Usage", BCP 168, RFC 6398, DOI 10.17487/RFC6398, October 2011, . [BCP169] Best Current Practice 169, . At the time of writing, this BCP comprises the following: D. McPherson, R. Donnelly, F. Scalzo, "Unique Origin Autonomous System Numbers (ASNs) per Node for Globally Anycasted Services", BCP 169, RFC 6382, DOI 10.17487/RFC6382, October 2011, . [BCP170] Best Current Practice 170, . At the time of writing, this BCP comprises the following: A. Clark, B. Claise, "Guidelines for Considering New Performance Metric Development", BCP 170, RFC 6390, DOI 10.17487/RFC6390, October 2011, . [BCP171] Best Current Practice 171, . At the time of writing, this BCP comprises the following: L. Vegoda, "Time to Remove Filters for Previously Unallocated IPv4 /8s", BCP 171, RFC 6441, DOI 10.17487/RFC6441, November 2011, . [BCP172] Best Current Practice 172, . At the time of writing, this BCP comprises the following: W. Kumari, K. Sriram, "Recommendation for Not Using AS_SET and AS_CONFED_SET in BGP", BCP 172, RFC 6472, DOI 10.17487/RFC6472, December 2011, . [BCP173] Best Current Practice 173, . At the time of writing, this BCP comprises the following: S. Kent, D. Kong, K. Seo, R. Watro, "Certificate Policy (CP) for the Resource Public Key Infrastructure (RPKI)", BCP 173, RFC 6484, DOI 10.17487/RFC6484, February 2012, . S. Kent, D. Kong, K. Seo, "Template for a Certification Practice Statement (CPS) for the Resource PKI (RPKI)", BCP 173, RFC 7382, DOI 10.17487/RFC7382, April 2015, . [BCP174] Best Current Practice 174, . At the time of writing, this BCP comprises the following: G. Huston, G. Michaelson, S. Kent, "Certification Authority (CA) Key Rollover in the Resource Public Key Infrastructure (RPKI)", BCP 174, RFC 6489, DOI 10.17487/RFC6489, February 2012, . [BCP175] Best Current Practice 175, . At the time of writing, this BCP comprises the following: E. Lear, P. Eggert, "Procedures for Maintaining the Time Zone Database", BCP 175, RFC 6557, DOI 10.17487/RFC6557, February 2012, . [BCP176] Best Current Practice 176, . At the time of writing, this BCP comprises the following: R. Geib, Ed., A. Morton, R. Fardid, A. Steinmitz, "IP Performance Metrics (IPPM) Standard Advancement Testing", BCP 176, RFC 6576, DOI 10.17487/RFC6576, March 2012, . [BCP177] Best Current Practice 177, . At the time of writing, this BCP comprises the following: W. George, C. Donley, C. Liljenstolpe, L. Howard, "IPv6 Support Required for All IP-Capable Nodes", BCP 177, RFC 6540, DOI 10.17487/RFC6540, April 2012, . [BCP178] Best Current Practice 178, . At the time of writing, this BCP comprises the following: P. Saint-Andre, D. Crocker, M. Nottingham, "Deprecating the "X-" Prefix and Similar Constructs in Application Protocols", BCP 178, RFC 6648, DOI 10.17487/RFC6648, June 2012, . [BCP179] Best Current Practice 179, . At the time of writing, this BCP comprises the following: L. Hornquist Astrand, T. Yu, "Deprecate DES, RC4-HMAC-EXP, and Other Weak Cryptographic Algorithms in Kerberos", BCP 179, RFC 6649, DOI 10.17487/RFC6649, July 2012, . [BCP180] Best Current Practice 180, . At the time of writing, this BCP comprises the following: J. Brzozowski, J. Tremblay, J. Chen, T. Mrugalski, "DHCPv6 Redundancy Deployment Considerations", BCP 180, RFC 6853, DOI 10.17487/RFC6853, February 2013, . [BCP181] Best Current Practice 181, . At the time of writing, this BCP comprises the following: B. Rosen, J. Polk, "Best Current Practice for Communications Services in Support of Emergency Calling", BCP 181, RFC 6881, DOI 10.17487/RFC6881, March 2013, . [BCP182] Best Current Practice 182, . At the time of writing, this BCP comprises the following: R. Gagliano, S. Kent, S. Turner, "Algorithm Agility Procedure for the Resource Public Key Infrastructure (RPKI)", BCP 182, RFC 6916, DOI 10.17487/RFC6916, April 2013, . [BCP183] Best Current Practice 183, . At the time of writing, this BCP comprises the following: P. Saint-Andre, "A Uniform Resource Name (URN) Namespace for Examples", BCP 183, RFC 6963, DOI 10.17487/RFC6963, May 2013, . [BCP184] Best Current Practice 184, . At the time of writing, this BCP comprises the following: B. Trammell, B. Claise, "Guidelines for Authors and Reviewers of IP Flow Information Export (IPFIX) Information Elements", BCP 184, RFC 7013, DOI 10.17487/RFC7013, September 2013, . [BCP185] Best Current Practice 185, . At the time of writing, this BCP comprises the following: R. Bush, "Origin Validation Operation Based on the Resource Public Key Infrastructure (RPKI)", BCP 185, RFC 7115, DOI 10.17487/RFC7115, January 2014, . Y. Gilad, S. Goldberg, K. Sriram, J. Snijders, B. Maddison, "The Use of maxLength in the Resource Public Key Infrastructure (RPKI)", BCP 185, RFC 9319, DOI 10.17487/RFC9319, October 2022, . [BCP186] Best Current Practice 186, . At the time of writing, this BCP comprises the following: F. Gont, R. Atkinson, C. Pignataro, "Recommendations on Filtering of IPv4 Packets Containing IPv4 Options", BCP 186, RFC 7126, DOI 10.17487/RFC7126, February 2014, . [BCP187] Best Current Practice 187, . At the time of writing, this BCP comprises the following: D. Hankins, T. Mrugalski, M. Siodelski, S. Jiang, S. Krishnan, "Guidelines for Creating New DHCPv6 Options", BCP 187, RFC 7227, DOI 10.17487/RFC7227, May 2014, . [BCP188] Best Current Practice 188, . At the time of writing, this BCP comprises the following: S. Farrell, H. Tschofenig, "Pervasive Monitoring Is an Attack", BCP 188, RFC 7258, DOI 10.17487/RFC7258, May 2014, . [BCP189] Best Current Practice 189, . At the time of writing, this BCP comprises the following: M. Shore, C. Pignataro, "An Acceptable Use Policy for New ICMP Types and Codes", BCP 189, RFC 7279, DOI 10.17487/RFC7279, May 2014, . [BCP190] Best Current Practice 190, . At the time of writing, this BCP comprises the following: M. Nottingham, "URI Design and Ownership", BCP 190, RFC 8820, DOI 10.17487/RFC8820, June 2020, . [BCP191] Best Current Practice 191, . At the time of writing, this BCP comprises the following: D. Eastlake 3rd, "IANA Considerations for Connectivity Fault Management (CFM) Code Points", BCP 191, RFC 7319, DOI 10.17487/RFC7319, July 2014, . [BCP192] Best Current Practice 192 currently contains no RFCs [BCP193] Best Current Practice 193, . At the time of writing, this BCP comprises the following: L. Morand, Ed., V. Fajardo, H. Tschofenig, "Diameter Applications Design Guidelines", BCP 193, RFC 7423, DOI 10.17487/RFC7423, November 2014, . [BCP194] Best Current Practice 194, . At the time of writing, this BCP comprises the following: J. Durand, I. Pepelnjak, G. Doering, "BGP Operations and Security", BCP 194, RFC 7454, DOI 10.17487/RFC7454, February 2015, . [BCP195] Best Current Practice 195, . At the time of writing, this BCP comprises the following: K. Moriarty, S. Farrell, "Deprecating TLS 1.0 and TLS 1.1", BCP 195, RFC 8996, DOI 10.17487/RFC8996, March 2021, . Y. Sheffer, P. Saint-Andre, T. Fossati, "Recommendations for Secure Use of Transport Layer Security (TLS) and Datagram Transport Layer Security (DTLS)", BCP 195, RFC 9325, DOI 10.17487/RFC9325, November 2022, . [BCP196] Best Current Practice 196, . At the time of writing, this BCP comprises the following: O. Troan, B. Carpenter, Ed., "Deprecating the Anycast Prefix for 6to4 Relay Routers", BCP 196, RFC 7526, DOI 10.17487/RFC7526, May 2015, . [BCP197] Best Current Practice 197, . At the time of writing, this BCP comprises the following: F. Baker, Ed., G. Fairhurst, Ed., "IETF Recommendations Regarding Active Queue Management", BCP 197, RFC 7567, DOI 10.17487/RFC7567, July 2015, . [BCP198] Best Current Practice 198, . At the time of writing, this BCP comprises the following: M. Boucadair, A. Petrescu, F. Baker, "IPv6 Prefix Length Recommendation for Forwarding", BCP 198, RFC 7608, DOI 10.17487/RFC7608, July 2015, . [BCP199] Best Current Practice 199, . At the time of writing, this BCP comprises the following: F. Gont, W. Liu, G. Van de Velde, "DHCPv6-Shield: Protecting against Rogue DHCPv6 Servers", BCP 199, RFC 7610, DOI 10.17487/RFC7610, August 2015, . [BCP200] Best Current Practice 200, . At the time of writing, this BCP comprises the following: IAB, IESG, "IAB and IESG Statement on Cryptographic Technology and the Internet", BCP 200, RFC 1984, DOI 10.17487/RFC1984, August 1996, . [BCP201] Best Current Practice 201, . At the time of writing, this BCP comprises the following: R. Housley, "Guidelines for Cryptographic Algorithm Agility and Selecting Mandatory-to-Implement Algorithms", BCP 201, RFC 7696, DOI 10.17487/RFC7696, November 2015, . [BCP202] Best Current Practice 202, . At the time of writing, this BCP comprises the following: A. Yourtchenko, L. Colitti, "Reducing Energy Consumption of Router Advertisements", BCP 202, RFC 7772, DOI 10.17487/RFC7772, February 2016, . [BCP203] Best Current Practice 203, . At the time of writing, this BCP comprises the following: B. Leiba, "Changing the Registration Policy for the NETCONF Capability URNs Registry", BCP 203, RFC 7803, DOI 10.17487/RFC7803, February 2016, . [BCP204] Best Current Practice 204, . At the time of writing, this BCP comprises the following: L. Colitti, V. Cerf, S. Cheshire, D. Schinazi, "Host Address Availability Recommendations", BCP 204, RFC 7934, DOI 10.17487/RFC7934, July 2016, . [BCP205] Best Current Practice 205, . At the time of writing, this BCP comprises the following: Y. Sheffer, A. Farrel, "Improving Awareness of Running Code: The Implementation Status Section", BCP 205, RFC 7942, DOI 10.17487/RFC7942, July 2016, . [BCP206] Best Current Practice 206, . At the time of writing, this BCP comprises the following: A. Farrel, Ed., J. Drake, N. Bitar, G. Swallow, D. Ceccarelli, X. Zhang, "Problem Statement and Architecture for Information Exchange between Interconnected Traffic-Engineered Networks", BCP 206, RFC 7926, DOI 10.17487/RFC7926, July 2016, . [BCP207] Best Current Practice 207, . At the time of writing, this BCP comprises the following: W. Hardaker, O. Gudmundsson, S. Krishnaswamy, "DNSSEC Roadblock Avoidance", BCP 207, RFC 8027, DOI 10.17487/RFC8027, November 2016, . [BCP208] Best Current Practice 208, . At the time of writing, this BCP comprises the following: G. Fairhurst, "Network Transport Circuit Breakers", BCP 208, RFC 8084, DOI 10.17487/RFC8084, March 2017, . [BCP209] Best Current Practice 209, . At the time of writing, this BCP comprises the following: P. Koch, M. Larson, P. Hoffman, "Initializing a DNS Resolver with Priming Queries", BCP 209, RFC 9609, DOI 10.17487/RFC9609, February 2025, . [BCP210] Best Current Practice 210, . At the time of writing, this BCP comprises the following: X. Vilajosana, Ed., K. Pister, T. Watteyne, "Minimal IPv6 over the TSCH Mode of IEEE 802.15.4e (6TiSCH) Configuration", BCP 210, RFC 8180, DOI 10.17487/RFC8180, May 2017, . [BCP211] Best Current Practice 211, . At the time of writing, this BCP comprises the following: R. Bush, "BGPsec Operational Considerations", BCP 211, RFC 8207, DOI 10.17487/RFC8207, September 2017, . [BCP212] Best Current Practice 212, . At the time of writing, this BCP comprises the following: W. Denniss, J. Bradley, "OAuth 2.0 for Native Apps", BCP 212, RFC 8252, DOI 10.17487/RFC8252, October 2017, . [BCP213] Best Current Practice 213, . At the time of writing, this BCP comprises the following: P. Tarapore, Ed., R. Sayko, G. Shepherd, T. Eckert, Ed., R. Krishnan, "Use of Multicast across Inter-domain Peering Points", BCP 213, RFC 8313, DOI 10.17487/RFC8313, January 2018, . [BCP214] Best Current Practice 214, . At the time of writing, this BCP comprises the following: W. Hargrave, M. Griswold, J. Snijders, N. Hilliard, "Mitigating the Negative Impact of Maintenance through BGP Session Culling", BCP 214, RFC 8327, DOI 10.17487/RFC8327, March 2018, . [BCP215] Best Current Practice 215, . At the time of writing, this BCP comprises the following: M. Bjorklund, L. Berger, Ed., "YANG Tree Diagrams", BCP 215, RFC 8340, DOI 10.17487/RFC8340, March 2018, . [BCP216] Best Current Practice 216, . At the time of writing, this BCP comprises the following: A. Bierman, M. Boucadair, Ed., Q. Wu, "Guidelines for Authors and Reviewers of Documents Containing YANG Data Models", BCP 216, RFC 9907, DOI 10.17487/RFC9907, March 2026, . [BCP217] Best Current Practice 217, . At the time of writing, this BCP comprises the following: P. Martinsen, T. Reddy, P. Patil, "Guidelines for Multihomed and IPv4/IPv6 Dual-Stack Interactive Connectivity Establishment (ICE)", BCP 217, RFC 8421, DOI 10.17487/RFC8421, July 2018, . [BCP218] Best Current Practice 218, . At the time of writing, this BCP comprises the following: B. Kaduk, M. Short, "Deprecate Triple-DES (3DES) and RC4 in Kerberos", BCP 218, RFC 8429, DOI 10.17487/RFC8429, October 2018, . [BCP219] Best Current Practice 219, . At the time of writing, this BCP comprises the following: P. Hoffman, K. Fujiwara, "DNS Terminology", BCP 219, RFC 9499, DOI 10.17487/RFC9499, March 2024, . [BCP220] Best Current Practice 220, . At the time of writing, this BCP comprises the following: T. Chown, J. Loughney, T. Winters, "IPv6 Node Requirements", BCP 220, RFC 8504, DOI 10.17487/RFC8504, January 2019, . [BCP221] Best Current Practice 221, . At the time of writing, this BCP comprises the following: S. Hollenbeck, A. Newton, "Registration Data Access Protocol (RDAP) Object Tagging", BCP 221, RFC 8521, DOI 10.17487/RFC8521, November 2018, . [BCP222] Best Current Practice 222, . At the time of writing, this BCP comprises the following: D. Crocker, "Scoped Interpretation of DNS Resource Records through "Underscored" Naming of Attribute Leaves", BCP 222, RFC 8552, DOI 10.17487/RFC8552, March 2019, . D. Crocker, "DNS Attrleaf Changes: Fixing Specifications That Use Underscored Node Names", BCP 222, RFC 8553, DOI 10.17487/RFC8553, March 2019, . [BCP223] Best Current Practice 223, . At the time of writing, this BCP comprises the following: D. Reilly, H. Stenn, D. Sibold, "Network Time Protocol Best Current Practices", BCP 223, RFC 8633, DOI 10.17487/RFC8633, July 2019, . [BCP224] Best Current Practice 224, . At the time of writing, this BCP comprises the following: B. Weis, R. Gagliano, K. Patel, "BGPsec Router Certificate Rollover", BCP 224, RFC 8634, DOI 10.17487/RFC8634, August 2019, . [BCP225] Best Current Practice 225, . At the time of writing, this BCP comprises the following: Y. Sheffer, D. Hardt, M. Jones, "JSON Web Token Best Current Practices", BCP 225, RFC 8725, DOI 10.17487/RFC8725, February 2020, . [BCP226] Best Current Practice 226, . At the time of writing, this BCP comprises the following: E. Lear, Ed., "IETF Plenary Meeting Venue Selection Process", BCP 226, RFC 8718, DOI 10.17487/RFC8718, February 2020, . S. Krishnan, "High-Level Guidance for the Meeting Policy of the IETF", BCP 226, RFC 8719, DOI 10.17487/RFC8719, February 2020, . M. Duke, "Considerations for Cancellation of IETF Meetings", BCP 226, RFC 9137, DOI 10.17487/RFC9137, October 2021, . J. Daley, S. Turner, "IETF Meeting Venue Requirements Review", BCP 226, RFC 9712, DOI 10.17487/RFC9712, January 2025, . [BCP227] Best Current Practice 227, . At the time of writing, this BCP comprises the following: L. Velvindron, "Deprecating RC4 in Secure Shell (SSH)", BCP 227, RFC 8758, DOI 10.17487/RFC8758, April 2020, . [BCP228] Best Current Practice 228, . At the time of writing, this BCP comprises the following: J. Peterson, R. Barnes, R. Housley, "Best Practices for Securing RTP Media Signaled with SIP", BCP 228, RFC 8862, DOI 10.17487/RFC8862, January 2021, . [BCP229] Best Current Practice 229, . At the time of writing, this BCP comprises the following: M. Abrahamsson, T. Chown, L. Giuliano, T. Eckert, "Deprecating Any-Source Multicast (ASM) for Interdomain Multicast", BCP 229, RFC 8815, DOI 10.17487/RFC8815, August 2020, . [BCP230] Best Current Practice 230, . At the time of writing, this BCP comprises the following: R. Bonica, F. Baker, G. Huston, R. Hinden, O. Troan, F. Gont, "IP Fragmentation Considered Fragile", BCP 230, RFC 8900, DOI 10.17487/RFC8900, September 2020, . [BCP231] Best Current Practice 231, . At the time of writing, this BCP comprises the following: M. Andrews, R. Bellis, "A Common Operational Problem in DNS Servers: Failure to Communicate", BCP 231, RFC 8906, DOI 10.17487/RFC8906, September 2020, . [BCP232] Best Current Practice 232, . At the time of writing, this BCP comprises the following: S. Dickinson, B. Overeinder, R. van Rijswijk-Deij, A. Mankin, "Recommendations for DNS Privacy Service Operators", BCP 232, RFC 8932, DOI 10.17487/RFC8932, October 2020, . [BCP233] Best Current Practice 233, . At the time of writing, this BCP comprises the following: M. Allman, "Requirements for Time-Based Loss Detection", BCP 233, RFC 8961, DOI 10.17487/RFC8961, November 2020, . [BCP234] Best Current Practice 234, . At the time of writing, this BCP comprises the following: F. Gont, J. Žorž, R. Patterson, B. Volz, "Improving the Reaction of Customer Edge Routers to IPv6 Renumbering Events", BCP 234, RFC 9096, DOI 10.17487/RFC9096, August 2021, . [BCP235] Best Current Practice 235, . At the time of writing, this BCP comprises the following: J. Kristoff, D. Wessels, "DNS Transport over TCP - Operational Requirements", BCP 235, RFC 9210, DOI 10.17487/RFC9210, March 2022, . [BCP236] Best Current Practice 236, . At the time of writing, this BCP comprises the following: W. Hardaker, V. Dukhovni, "Guidance for NSEC3 Parameter Settings", BCP 236, RFC 9276, DOI 10.17487/RFC9276, August 2022, . [BCP237] Best Current Practice 237, . At the time of writing, this BCP comprises the following: P. Hoffman, "DNS Security Extensions (DNSSEC)", BCP 237, RFC 9364, DOI 10.17487/RFC9364, February 2023, . [BCP238] Best Current Practice 238, . At the time of writing, this BCP comprises the following: Z. Yan, R. Bush, G. Geng, T. de Kock, J. Yao, "Avoiding Route Origin Authorizations (ROAs) Containing Multiple IP Prefixes", BCP 238, RFC 9455, DOI 10.17487/RFC9455, August 2023, . [BCP239] Best Current Practice 239, . At the time of writing, this BCP comprises the following: M. Kühlewind, J. Reed, R. Salz, "Open Participation Principle regarding Remote Registration Fee", BCP 239, RFC 9501, DOI 10.17487/RFC9501, December 2023, . [BCP240] Best Current Practice 240, . At the time of writing, this BCP comprises the following: T. Lodderstedt, J. Bradley, A. Labunets, D. Fett, "Best Current Practice for OAuth 2.0 Security", BCP 240, RFC 9700, DOI 10.17487/RFC9700, January 2025, . [BCP241] Best Current Practice 241, . At the time of writing, this BCP comprises the following: M. Richardson, W. Pan, "Operational Considerations for Use of DNS in Internet of Things (IoT) Devices", BCP 241, RFC 9726, DOI 10.17487/RFC9726, March 2025, . [BCP242] Best Current Practice 242, . At the time of writing, this BCP comprises the following: B. Carpenter, S. Krishnan, D. Farmer, "Clarification of IPv6 Address Allocation Policy", BCP 242, RFC 9812, DOI 10.17487/RFC9812, October 2025, . [BCP243] Best Current Practice 243, . At the time of writing, this BCP comprises the following: A. DeKok, "Operational Considerations for Using TLS Pre-Shared Keys (TLS-PSKs) with RADIUS", BCP 243, RFC 9813, DOI 10.17487/RFC9813, July 2025, . [BCP244] Best Current Practice 244, . At the time of writing, this BCP comprises the following: S. Hollenbeck, W. Carroll, G. Akiwate, "Best Practices for Deletion of Domain and Host Objects in the Extensible Provisioning Protocol (EPP)", BCP 244, RFC 9874, DOI 10.17487/RFC9874, September 2025, . [BCP245] Best Current Practice 245, . At the time of writing, this BCP comprises the following: L. Eggert, Ed., E. Lear, Ed., "IETF Community Moderation", BCP 245, RFC 9945, DOI 10.17487/RFC9945, February 2026, .