* WGs marked with an * asterisk has had at least one new draft made available during the last 5 days

DOWNREF Registry

RFC 3967 (BCP 97), titled "Clarifying when Standards Track Documents may Refer Normatively to Documents at a Lower Level", specifies the rules for downward references (DOWNREFs):

IETF procedures generally require that a standards track RFC may not have a normative reference to another standards track document at a lower maturity level or to a non standards track specification (other than specifications from other standards bodies). For example, a standards track document may not have a normative reference to an informational RFC. Exceptions to this rule are sometimes needed as the IETF uses informational RFCs to describe non-IETF standards or IETF-specific modes of use of such standards.

Recent idnits versions added a DOWNREF check.

Following is a list of documents that have had downward references called out during Last Call (so further mentions may be permitted to be waived). Please add to this table whenever a DOWNREF was approved during an IETF Last Call, sorted by RFC number.

RFCReferring DraftLast Call Date
RFC952 (Unknown)draft-hollenbeck-rfc4932bis (FS), draft-hollenbeck-rfc4931bis (FS)May 14 2009
RFC1094draft-ietf-nfsv4-nfsdirect Sep 28 2007
RFC1321RFC 3967 ?
RFC1813draft-ietf-nfsv4-nfsdirect Sep 28 2007
RFC1951draft-ietf-lemonade-compressFeb 8 2007
RFC2104RFC 3967 ?
RFC2144draft-ietf-secsh-newmodesAug 24 2005
RFC2315draft-eastlake-additional-xmlsec-urisJan 31 12013
RFC2330draft-ietf-ippm-metrictestDec 1 2011
RFC2412draft-ietf-cat-kerberos-pk-initJan 25 2006
RFC2648draft-ietf-simple-xcap-diffAug 27 2009
RFC2683draft-ietf-qresync-rfc5162bisJan 13 2014
RFC2702draft-ietf-isis-admin-tags-03Feb 26 2007
RFC2781draft-ietf-appsawg-xml-mediatypesMar 3 2014
RFC2818draft-dusseault-caldavJul 2006
RFC2898draft-turner-asymmetrickeyformat-algsMar 22 2010
RFC2966draft-ietf-isis-admin-tags-03Feb 26 2007
RFC2986RFC6487Feb 7 2011
RFC3174draft-harris-ssh-rsa-kexNov 15 2005
RFC3217draft-ietf-smime-cms-rsa-kemFeb 25 2010
RFC3272draft-ietf-mpls-cosfield-defNov 20 2008
RFC3280RFC 3852Apr 27 2009
RFC3281RFC 3852Apr 27 2009
RFC3394draft-ietf-smime-cms-rsa-kemFeb 25 2010
RFC3447draft-ietf-cat-kerberos-pk-initJan 25 2006
RFC3469draft-ietf-mpls-cosfield-defNov 20 2008
RFC3548draft-ietf-dnsext-dnssec-recordsSep 10 2004
RFC3564draft-ietf-mpls-cosfield-defNov 20 2008
RFC3567draft-ietf-pce-disco-proto-isisJune 13 2007
RFC3843 (PS)RFC 5953 (DS)May 09 2011
RFC3579draft-ietf-radext-rfc4590bisMay 15 2007
RFC3618draft-ietf-mboned-msdp-deployJul 16 2004
RFC3618draft-ietf-mboned-ssm232Jul 16 2004
RFC3713draft-kato-ipsec-ciph-camelliaApr 1 2005
RFC3784draft-ietf-pce-disco-proto-isisJune 13 2007
RFC3784draft-ietf-ccamp-te-node-cap-05June 14 2007
RFC3784draft-ietf-isis-admin-tags-03Feb 26 2007
RFC3985draft-ietf-mpls-cosfield-defNov 20 2008
RFC4050draft-eastlake-additional-xmlsec-urisJan 31 2013
RFC4082draft-ietf-msec-srtp-teslaOct 14 2005
RFC4226draft-ietf-keyprov-pskcMay 26 2010
RFC4269draft-eastlake-additional-xmlsec-urisJan 31 2013
RFC4291 (DS)draft-hollenbeck-rfc4932bis (FS)May 14 2009
RFC4347 (PS)RFC 5953 (DS)May 09 2011
RFC4357draft-ietf-pkix-gost-cppkJan 20 2006
RFC4366 (PS)RFC 5953 (DS)May 09 2011
RFC4493 (draft-songlee-aes-cmac)draft-songlee-aes-cmac-96Dec 15 2005
RFC4627draft-ietf-mediactrl-ivr-control-packageJan 11 2011
RFC4753 (draft-ietf-ipsec-ike-ecp-groups)draft-ietf-ipsec-ike-auth-ecdsaJun 22 2006
RFC5246 (PS)RFC 5953 (DS)May 09 2011
RFC5280 (PS)RFC 5953 (DS)May 09 2011
RFC5322 (DS)draft-hollenbeck-rfc4933bis (FS)May 14 2009
RFC5410draft-arkko-mikey-ianaMarch 30 2011
RFC5598draft-ietf-dkim-mailinglistsJune 03 2011
RFC5649draft-turner-asymmetrickeyformat-algsMar 22 2010
RFC5753draft-turner-akf-algs-updateJan 11 2011
RFC5781draft-ietf-sidr-res-certsMar 15 2011
RFC5911 (draft-ietf-smime-new-asn1)draft-turner-asymmetrickeyformatMar 4 2010
RFC5912 (draft-ietf-pkix-new-asn1)draft-ietf-pkix-authorityclearanceconstraintsMar 3 2010
RFC5952 (PS)RFC 5953 (DS)May 09 2011
RFC5890 (PS)draft-ietf-dkim-rfc4871bis (DS)June 15 2011
RFC5753draft-turner-cms-symmetrickeypackage-algsDec 21 2010
RFC6043draft-arkko-mikey-ianaMarch 30 2011
RFC6090draft-turner-akf-algs-updateJan 11 2011
RFC6234draft-schaad-pkix-rfc2875-bisFeb 19 2013
RFC6839draft-ietf-appsawg-xml-mediatypesMar 3 2014
RFC6151draft-ietf-netmod-system-mgmtMay 13 2014

The waiver is not automatic, remember, it's meant to be a judgement call. RFC 3967 on the Last Call waiver:

Once a specific down reference to a particular document has been accepted by the community (e.g., has been mentioned in several Last Calls), an Area Director may waive subsequent notices in the Last Call of down references to it. This should only occur when the same document (and version) are being referenced and when the AD believes that the document's use is an accepted part of the community's understanding of the relevant technical area.