Security of Messages Exchanged between Servers and Relay Agents
RFC 8213
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Type |
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RFC - Proposed Standard
(August 2017; No errata)
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Last updated |
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2017-08-03
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Replaces |
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draft-volz-dhc-relay-server-security
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IETF
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plain text
pdf
html
bibtex
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Reviews |
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WG state
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Submitted to IESG for Publication
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Document shepherd |
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Tomek Mrugalski
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Shepherd write-up |
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Show
(last changed 2017-01-18)
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| IESG |
IESG state |
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RFC 8213 (Proposed Standard)
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Consensus Boilerplate |
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Yes
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Telechat date |
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Responsible AD |
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Suresh Krishnan
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Send notices to |
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"Tomek Mrugalski" <tomasz.mrugalski@gmail.com>
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| IANA |
IANA review state |
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Version Changed - Review Needed
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IANA action state |
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No IC
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Internet Engineering Task Force (IETF) B. Volz
Request for Comments: 8213 Y. Pal
Category: Standards Track Cisco Systems
ISSN: 2070-1721 August 2017
Security of Messages Exchanged between Servers and Relay Agents
Abstract
The Dynamic Host Configuration Protocol for IPv4 (DHCPv4) has no
guidance for how to secure messages exchanged between servers and
relay agents. The Dynamic Host Configuration Protocol for IPv6
(DHCPv6) states that IPsec should be used to secure messages
exchanged between servers and relay agents but does not require
encryption. With recent concerns about pervasive monitoring and
other attacks, it is appropriate to require securing relay-to-relay
and relay-to-server communication for DHCPv6 and relay-to-server
communication for DHCPv4.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 7841.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc8213.
Copyright Notice
Copyright (c) 2017 IETF Trust and the persons identified as the
document authors. All rights reserved.
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.
Volz & Pal Standards Track [Page 1]
RFC 8213 DHCP Relay/Server Security August 2017
This document may contain material from IETF Documents or IETF
Contributions published or made publicly available before November
10, 2008. The person(s) controlling the copyright in some of this
material may not have granted the IETF Trust the right to allow
modifications of such material outside the IETF Standards Process.
Without obtaining an adequate license from the person(s) controlling
the copyright in such materials, this document may not be modified
outside the IETF Standards Process, and derivative works of it may
not be created outside the IETF Standards Process, except to format
it for publication as an RFC or to translate it into languages other
than English.
Table of Contents
1. Introduction ....................................................2
2. Requirements Language and Terminology ...........................3
3. Security of Messages Exchanged between Servers and Relay
Agents ..........................................................3
4. Security Considerations .........................................5
5. IANA Considerations .............................................5
6. References ......................................................6
6.1. Normative References .......................................6
6.2. Informative References .....................................6
Acknowledgments ....................................................8
Authors' Addresses .................................................8
1. Introduction
The Dynamic Host Configuration Protocol for IPv4 (DHCPv4) [RFC2131]
and the Bootstrap Protocol [RFC1542] have no guidance for how to
secure messages exchanged between servers and relay agents. The
Dynamic Host Configuration Protocol for IPv6 (DHCPv6) [RFC3315]
states that IPsec should be used to secure messages exchanged between
servers and relay agents but does not recommend encryption. With
recent concerns about pervasive monitoring [RFC7258], it is
appropriate to require use of IPsec with encryption for relay-to-
server communication for DHCPv4 and require use of IPsec with
encryption for relay-to-relay and relay-to-server communication for
DHCPv6.
This document specifies the optional requirements for relay agent and
server implementations to support IPsec authentication and encryption
and recommends that operators enable this IPsec support.
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