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DNS Extensions Working Group J. Schlyter
Internet-Draft May 19, 2005
Expires: November 20, 2005
RFC 3597 Interoperability Report
draft-ietf-dnsext-interop3597-02.txt
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Copyright Notice
Copyright (C) The Internet Society (2005).
Abstract
This memo documents the result from the RFC 3597 (Handling of Unknown
DNS Resource Record Types) interoperability testing.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Implementations . . . . . . . . . . . . . . . . . . . . . . . 3
3. Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3.1 Authoritative Primary Name Server . . . . . . . . . . . . 3
3.2 Authoritative Secondary Name Server . . . . . . . . . . . 3
3.3 Full Recursive Resolver . . . . . . . . . . . . . . . . . 4
3.4 Stub Resolver . . . . . . . . . . . . . . . . . . . . . . 4
3.5 DNSSEC Signer . . . . . . . . . . . . . . . . . . . . . . 4
4. Problems found . . . . . . . . . . . . . . . . . . . . . . . . 4
5. Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
6. Normative References . . . . . . . . . . . . . . . . . . . . . 4
Author's Address . . . . . . . . . . . . . . . . . . . . . . . 4
A. Test zone data . . . . . . . . . . . . . . . . . . . . . . . . 5
Intellectual Property and Copyright Statements . . . . . . . . 6
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1. Introduction
This memo documents the result from the RFC 3597 (Handling of Unknown
DNS Resource Record Types) interoperability testing. The test was
performed during June and July 2004 by request of the IETF DNS
Extensions Working Group.
2. Implementations
The following is a list, in alphabetic order, of implementations
tested for compliance with RFC 3597:
DNSJava 1.6.4
ISC BIND 8.4.5
ISC BIND 9.3.0
NSD 2.1.1
Net::DNS 0.47 patchlevel 1
Nominum ANS 2.2.1.0.d
These implementations covers the following functions (number of
implementations tested for each function in paranthesis):
Authoritative Name Servers (4)
Full Recursive Resolver (2)
Stub Resolver (4)
DNSSEC Zone Signers (2)
All listed implementations are genetically different.
3. Tests
The following tests was been performed to validate compliance with
RFC 3597 section 3 ("Transparency"), 4 ("Domain Name Compression")
and 5 ("Text Representation").
3.1 Authoritative Primary Name Server
The test zone data (Appendix A) was loaded into the name server
implementation and the server was queried for the loaded information.
3.2 Authoritative Secondary Name Server
The test zone data (Appendix A) was transferred using AXFR from
another name server implementation and the server was queried for the
transferred information.
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3.3 Full Recursive Resolver
A recursive resolver was queried for resource records from a domain
with the test zone data (Appendix A).
3.4 Stub Resolver
A stub resolver was used to query resource records from a domain with
the test zone data (Appendix A).
3.5 DNSSEC Signer
A DNSSEC signer was used to sign a zone with test zone data
(Appendix A).
4. Problems found
Two implementations had problems with text presentation of zero
length RDATA.
One implementation had problems with text presentation of RR type
code and classes >= 4096.
Bug reports were filed for problems found.
5. Summary
Unknown type codes works in the tested authoritative servers,
recursive resolvers and stub clients.
No changes are needed to advance RFC 3597 to draft standard.
6. Normative References
[1] Gustafsson, A., "Handling of Unknown DNS Resource Record (RR)
Types", RFC 3597, September 2003.
Author's Address
Jakob Schlyter
Email: jakob@rfc.se
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Appendix A. Test zone data
; A-record encoded as TYPE1
a TYPE1 \# 4 7f000001
a TYPE1 192.0.2.1
a A \# 4 7f000002
; draft-ietf-secsh-dns-05.txt
sshfp TYPE44 \# 22 01 01 c691e90714a1629d167de8e5ee0021f12a7eaa1e
; bogus test record (from RFC 3597)
type731 TYPE731 \# 6 abcd (
ef 01 23 45 )
; zero length RDATA (from RFC 3597)
type62347 TYPE62347 \# 0
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Acknowledgment
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