Internet Engineering Task Force B. Volz
INTERNET DRAFT Ericsson
Expires: August 2003 April 4, 2003
Site Specific Options for DHCP for IPv6
draft-volz-dhc-dhcpv6-site-options-00.txt
Status of this Memo
This document is an Internet-Draft and is in full conformance with
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This Internet-Draft will expire on October 4, 2003.
Copyright Notice
Copyright (C) The Internet Society (2003). All Rights Reserved.
Abstract
This document specifies that a portion of the DHCP for IPv6 [DHCPv6]
16-bit option space is reserved for site-specific options. Site-
specific options are to be used for site specific needs and MUST NOT
be used for public (IANA assigned) or vendor specific options.
1. Introduction
The DHCP for IPv6 base specification [DHCPv6] did not reserve a
range of option numbers for private use within sites, as was defined
for DHCP for IPv4 [RFC2132].
This document specifies that a portion of the DHCP for IPv6 16-bit
option space is reserved for site-specific options. Site-specific
options are to be used for site specific needs and MUST NOT be used
for public (IANA assigned) or vendor specific options.
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2. Requirements
The keywords MUST, MUST NOT, REQUIRED, SHALL, SHALL NOT, SHOULD,
SHOULD NOT, RECOMMENDED, MAY, and OPTIONAL, when they appear in this
document, are to be interpreted as described in RFC 2119 [RFC2119].
3. Site-Specific Options
The DHCP for IPv6 option codes from 65,280 to 65,534 are to be
reserved for use by site-specific options. This reserves 254 option
values for site-specific use.
This range of option codes MUST NOT be assigned by IANA to any public
options.
This document does not define the behavior of clients, servers, and
relay agents with respect to site-specific options, as these are
site issues. However, it is recommended that client implementations:
a. allow the list of site-specific options to be included in an
Option Request Option (DHCPv6) to be configured,
b. allow the list of site-specific options and the corresponding
values to be sent in client request messages to be configured, and
c. allow application software to obtain the data returned for site-
specific options.
4. IANA Recommendations
IANA is requested to reserve the DHCP for IPv6 options from 65,280
to 65,534 (decimal), inclusive, for site-specific options. IANA will
not manage these options; sites will manage this space.
5. Security Considerations
This document in and by itself provides no security, nor does it
impact existing security.
Acknowledgements
Thanks to Ralph Droms for his input into this document.
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References
[DHCPv6] Droms (ed.), R, Bound, J., Volz, B., Lemon, T., Perkins,
C., Carney, M., "Dynamic Host Configuration Protocol for IPv6
(DHCPv6)", draft-ietf-dhc-dhcpv6-28 (work in progress), November
2002.
[RFC2132] Alexander, S. and R. Droms, "DHCP options and BOOTP Vendor
Extensions", RFC 2132, March 1997.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
Author's Address
Bernie Volz
Ericsson
959 Concord Street
Framingham, MA 01701
Phone: +1 508 875 3162
EMail: bernie.volz@ericsson.com
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