Extended DNS Errors
draft-ietf-dnsop-extended-error-13
Network Working Group W. Kumari
Internet-Draft Google
Intended status: Standards Track E. Hunt
Expires: June 20, 2020 ISC
R. Arends
ICANN
W. Hardaker
USC/ISI
D. Lawrence
Oracle + Dyn
December 18, 2019
Extended DNS Errors
draft-ietf-dnsop-extended-error-13
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
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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 June 20, 2020.
Copyright Notice
Copyright (c) 2019 IETF Trust and the persons identified as the
document authors. All rights reserved.
Kumari, et al. Expires June 20, 2020 [Page 1]
Internet-Draft draft-ietf-dnsop-extended-error December 2019
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Table of Contents
1. Introduction and background . . . . . . . . . . . . . . . . . 3
1.1. Requirements notation . . . . . . . . . . . . . . . . . . 4
2. Extended DNS Error EDNS0 option format . . . . . . . . . . . 4
3. Extended DNS Error Processing . . . . . . . . . . . . . . . . 5
4. Defined Extended DNS Errors . . . . . . . . . . . . . . . . . 5
4.1. Extended DNS Error Code 0 - Other . . . . . . . . . . . . 5
4.2. Extended DNS Error Code 1 -
Unsupported DNSKEY Algorithm . . . . . . . . . . . . . . 6
4.3. Extended DNS Error Code 2 - Unsupported DS
Digest Type . . . . . . . . . . . . . . . . . . . . . . . 6
4.4. Extended DNS Error Code 3 - Stale Answer . . . . . . . . 6
4.5. Extended DNS Error Code 4 - Forged Answer . . . . . . . . 6
4.6. Extended DNS Error Code 5 - DNSSEC Indeterminate . . . . 6
4.7. Extended DNS Error Code 6 - DNSSEC Bogus . . . . . . . . 6
4.8. Extended DNS Error Code 7 - Signature Expired . . . . . . 6
4.9. Extended DNS Error Code 8 - Signature Not Yet Valid . . . 6
4.10. Extended DNS Error Code 9 - DNSKEY Missing . . . . . . . 7
4.11. Extended DNS Error Code 10 - RRSIGs Missing . . . . . . . 7
4.12. Extended DNS Error Code 11 - No Zone Key Bit Set . . . . 7
4.13. Extended DNS Error Code 12 - NSEC Missing . . . . . . . . 7
4.14. Extended DNS Error Code 13 - Cached Error . . . . . . . . 7
4.15. Extended DNS Error Code 14 - Not Ready . . . . . . . . . 7
4.16. Extended DNS Error Code 15 - Blocked . . . . . . . . . . 7
4.17. Extended DNS Error Code 16 - Censored . . . . . . . . . . 7
4.18. Extended DNS Error Code 17 - Filtered . . . . . . . . . . 7
4.19. Extended DNS Error Code 18 - Prohibited . . . . . . . . . 8
4.20. Extended DNS Error Code 19 - Stale NXDOMAIN Answer . . . 8
4.21. Extended DNS Error Code 20 - Not Authoritative . . . . . 8
4.22. Extended DNS Error Code 21 - Not Supported . . . . . . . 8
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