Extended DNS Errors
draft-ietf-dnsop-extended-error-04
Network Working Group W. Kumari
Internet-Draft Google
Intended status: Standards Track E. Hunt
Expires: July 11, 2019 ISC
R. Arends
ICANN
W. Hardaker
USC/ISI
D. Lawrence
Oracle + Dyn
January 07, 2019
Extended DNS Errors
draft-ietf-dnsop-extended-error-04
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.
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 July 11, 2019.
Copyright Notice
Copyright (c) 2019 IETF Trust and the persons identified as the
document authors. All rights reserved.
Kumari, et al. Expires July 11, 2019 [Page 1]
Internet-Draft draft-ietf-dnsop-extended-error January 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 . . . . . . . . . . . . . . . . . . 3
2. Extended Error EDNS0 option format . . . . . . . . . . . . . 3
3. Use of the Extended DNS Error option . . . . . . . . . . . . 4
3.1. The R (Retry) flag . . . . . . . . . . . . . . . . . . . 5
3.2. The RESPONSE-CODE field . . . . . . . . . . . . . . . . . 5
3.3. The INFO-CODE field . . . . . . . . . . . . . . . . . . . 5
3.4. The EXTRA-TEXT field . . . . . . . . . . . . . . . . . . 5
4. Defined Extended DNS Errors . . . . . . . . . . . . . . . . . 5
4.1. INFO-CODEs for use with RESPONSE-CODE: NOERROR(0) . . . . 6
4.1.1. NOERROR Extended DNS Error Code 1 - Unsupported
DNSKEY Algorithm . . . . . . . . . . . . . . . . . . 6
4.1.2. NOERROR Extended DNS Error Code 2 - Unsupported
DS Algorithm . . . . . . . . . . . . . . . . . . . . 6
4.2. INFO-CODEs for use with RESPONSE-CODE: SERVFAIL(2) . . . 6
4.2.1. SERVFAIL Extended DNS Error Code 1 - DNSSEC Bogus . . 6
4.2.2. SERVFAIL Extended DNS Error Code 2 - DNSSEC
Indeterminate . . . . . . . . . . . . . . . . . . . . 6
4.2.3. SERVFAIL Extended DNS Error Code 3 - Signature
Expired . . . . . . . . . . . . . . . . . . . . . . . 6
4.2.4. SERVFAIL Extended DNS Error Code 4 - Signature Not
Yet Valid . . . . . . . . . . . . . . . . . . . . . . 6
4.2.5. SERVFAIL Extended DNS Error Code 5 - DNSKEY missing . 6
4.2.6. SERVFAIL Extended DNS Error Code 6 - RRSIGs missing . 7
4.2.7. SERVFAIL Extended DNS Error Code 7 - No Zone Key Bit
Set . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.3. INFO-CODEs for use with RESPONSE-CODE: REFUSED(5) . . . . 7
4.3.1. REFUSED Extended DNS Error Code 1 - Lame . . . . . . 7
4.3.2. REFUSED Extended DNS Error Code 2 - Prohibited . . . 7
4.4. INFO-CODEs for use with RESPONSE-CODE: NXDOMAIN(3) . . . 7
Show full document text