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IETF RFC 6891
[ACTIVE]

Extension Mechanisms for DNS (EDNS(0))

Metadata

Publisher
IETF
Doc Type
Standard
Pages
16
Abstract
The Domain Name System's wire protocol includes a number of fixed fields whose range has been or soon will be exhausted and does not allow requestors to advertise their capabilities to responders. This document describes backward-compatible mechanisms for allowing the protocol to grow. This document updates the Extension Mechanisms for DNS (EDNS(0)) specification (and obsoletes RFC 2671) based on feedback from deployment experience in several implementations. It also obsoletes RFC 2673 ("Binary Labels in the Domain Name System") and adds considerations on the use of extended labels in the DNS.
Publication Date
2013-04-01
Status Note
Internet Standard
DOI
10.17487/RFC6891
Link
https://doi.org/10.17487/RFC6891
Author(s)
Joao Luis Silva Damas
Michael Graff
Paul A. Vixie
Keyword(s)
DNS, Resource Records
Latest version of IETF RFC 6891

Document Versions — IETF RFC 6891

  • ▶ IETF RFC 6891 (2013-04-01)
    THIS DOC [ACTIVE] [LATEST VERSION]

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IETF RFC 6891, Extension Mechanisms for DNS (EDNS(0)). Available at https://doi.org/10.17487/RFC6891
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IETF RFC 6891, Extension Mechanisms for DNS (EDNS(0)). Available at https://doi.org/10.17487/RFC6891

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IETF RFC 6891, Extension Mechanisms for DNS (EDNS(0)). Available at https://doi.org/10.17487/RFC6891
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<span class="citation"><cite>IETF RFC 6891</cite>, Extension Mechanisms for DNS (EDNS(0)). Available at <a href="https://doi.org/10.17487/RFC6891" target="_blank" rel="noopener">https://doi.org/10.17487/RFC6891</a></span>

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IETF RFC 6891, Extension Mechanisms for DNS (EDNS(0))
doi: 10.17487/RFC6891
url: https://doi.org/10.17487/RFC6891
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<cite id="bib-rfc6891">IETF RFC 6891</cite>, Extension Mechanisms for DNS (EDNS(0))
<span class="doi">10.17487/RFC6891</span>
</li>

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