Extended DNS Errors
draft-ietf-dnsop-extended-error-12

Document Type Active Internet-Draft (dnsop WG)
Last updated 2019-10-01
Replaces draft-wkumari-dnsop-extended-error
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Network Working Group                                          W. Kumari
Internet-Draft                                                    Google
Intended status: Standards Track                                 E. Hunt
Expires: April 3, 2020                                               ISC
                                                               R. Arends
                                                                   ICANN
                                                             W. Hardaker
                                                                 USC/ISI
                                                             D. Lawrence
                                                            Oracle + Dyn
                                                        October 01, 2019

                          Extended DNS Errors
                   draft-ietf-dnsop-extended-error-12

Abstract

   This document defines an extensible method to return additional
   information about the cause of DNS errors.  Though created primarily
   to extend SERVFAIL to provide additional information about the cause
   of DNS and DNSSEC failures, the Extended DNS Errors option defined in
   this document allows all response types to contain extended error
   information.  Extended DNS Error information does not change the
   processing of RCODEs.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on April 3, 2020.

Copyright Notice

   Copyright (c) 2019 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Kumari, et al.            Expires April 3, 2020                 [Page 1]
Internet-Draft       draft-ietf-dnsop-extended-error        October 2019

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction and background . . . . . . . . . . . . . . . . .   3
     1.1.  Requirements notation . . . . . . . . . . . . . . . . . .   4
   2.  Extended DNS Error EDNS0 option format  . . . . . . . . . . .   4
   3.  Defined Extended DNS Errors . . . . . . . . . . . . . . . . .   5
     3.1.  Extended DNS Error Code 0 - Other . . . . . . . . . . . .   5
     3.2.  Extended DNS Error Code 1 -
           Unsupported DNSKEY Algorithm  . . . . . . . . . . . . . .   5
     3.3.  Extended DNS Error Code 2 - Unsupported DS
           Digest Type . . . . . . . . . . . . . . . . . . . . . . .   5
     3.4.  Extended DNS Error Code 3 - Stale Answer  . . . . . . . .   5
     3.5.  Extended DNS Error Code 4 - Forged Answer . . . . . . . .   6
     3.6.  Extended DNS Error Code 5 - DNSSEC Indeterminate  . . . .   6
     3.7.  Extended DNS Error Code 6 - DNSSEC Bogus  . . . . . . . .   6
     3.8.  Extended DNS Error Code 7 - Signature Expired . . . . . .   6
     3.9.  Extended DNS Error Code 8 - Signature Not Yet Valid . . .   6
     3.10. Extended DNS Error Code 9 - DNSKEY Missing  . . . . . . .   6
     3.11. Extended DNS Error Code 10 - RRSIGs Missing . . . . . . .   6
     3.12. Extended DNS Error Code 11 - No Zone Key Bit Set  . . . .   6
     3.13. Extended DNS Error Code 12 - NSEC Missing . . . . . . . .   6
     3.14. Extended DNS Error Code 13 - Cached Error . . . . . . . .   7
     3.15. Extended DNS Error Code 14 - Not Ready  . . . . . . . . .   7
     3.16. Extended DNS Error Code 15 - Blocked  . . . . . . . . . .   7
     3.17. Extended DNS Error Code 16 - Censored . . . . . . . . . .   7
     3.18. Extended DNS Error Code 17 - Filtered . . . . . . . . . .   7
     3.19. Extended DNS Error Code 18 - Prohibited . . . . . . . . .   7
     3.20. Extended DNS Error Code 19 - Stale NXDOMAIN Answer  . . .   7
     3.21. Extended DNS Error Code 20 - Not Authoritative  . . . . .   8
     3.22. Extended DNS Error Code 21 - Not Supported  . . . . . . .   8
     3.23. Extended DNS Error Code 22 - No Reachable Authority . . .   8
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