draft-ietf-dhc-dhcpv6-opt-dnsdomain-02.txt   draft-ietf-dhc-dhcpv6-opt-dnsdomain-03.txt 
DHC Working Group R. Yan DHC Working Group R. Yan
Internet Draft Y. Jiang Internet Draft Y. Jiang
Expiration Date: September 2006 L. Gui Expiration Date: December 2006 L. Gui
Alcatel Shanghai Bell Alcatel Shanghai Bell
X. Duan X. Duan
China Mobile China Mobile
Domain Suffix Option for DHCPv6 Domain Suffix Option for DHCPv6
<draft-ietf-dhc-dhcpv6-opt-dnsdomain-02.txt> <draft-ietf-dhc-dhcpv6-opt-dnsdomain-03.txt>
March 6, 2006 June 6, 2006
Status of this Memo Status of this Memo
By submitting this Internet-Draft, each author represents that any By submitting this Internet-Draft, each author represents that any
applicable patent or other IPR claims of which he or she is aware applicable patent or other IPR claims of which he or she is aware
have been or will be disclosed, and any of which he or she becomes have been or will be disclosed, and any of which he or she becomes
aware will be disclosed, in accordance with Section 6 of BCP 79. aware will be disclosed, in accordance with Section 6 of BCP 79.
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
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and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
The list of current Internet-Drafts can be accessed at The list of current Internet-Drafts can be accessed at
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This Internet-Draft will expire on September 6, 2006. This Internet-Draft will expire on December 6, 2006.
Copyright Notice Copyright Notice
Copyright (C) The Internet Society (2006). Copyright (C) The Internet Society (2006).
Abstract Abstract
This document specifies a new DHCPv6 (DHCP for IPv6) option which is This document describes a new option for DHCPv6 (DHCP for IPv6) that
passed from a DHCPv6 server to a DHCPv6 client to specify the provides a mechanism for specifying a domain name suffix.
domain suffix name.
1. Introduction 1. Introduction
This document describes a new option for DHCPv6 [RFC3315] that This document describes a new option for DHCPv6 [RFC3315] that
provides a mechanism for the transfer of a domain name suffix. provides a mechanism for specifying a domain name suffix. Using this
Using this option, the DHCPv6 server can specify the domain name option, the DHCPv6 server can specify a domain name suffix to the
suffix to the DHCPv6 client. DHCPv6 client.
1.1 Terminology 1.1 Terminology
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in [RFC2119]. document are to be interpreted as described in [RFC2119].
This document should be read in conjunction with the DHCPv6 This document should be read in conjunction with the DHCPv6
specification, [RFC3315]. Definitions for terms and acronyms used in specification, [RFC3315]. Definitions for terms and acronyms used in
this document are defined in RFC3315. this document are defined in RFC3315.
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The domain suffix option for DHCPv6 is used by the DHCPv6 server to The domain suffix option for DHCPv6 is used by the DHCPv6 server to
tell the DHCPv6 client the domain suffix that the DHCPv6 server tell the DHCPv6 client the domain suffix that the DHCPv6 server
administrator has specified for that DHCPv6 client. administrator has specified for that DHCPv6 client.
The format of the domain suffix option is: The format of the domain suffix option is:
0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Length | | option-code | option-length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| | | |
~ Domain suffix ~ ~ domain suffix ~
| | | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Type: 16-bits identifier of the type of option (TBD). option-code: OPTION_DOMAIN_SUFFIX (TBD).
Length: Length of the "domain suffix" field in octets. option-length: length of the "domain suffix" field in octets.
Domain suffix: The specification of a domain suffix. domain suffix: the specification of a domain suffix.
The domain suffix in the 'domain suffix' field MUST include only one The domain suffix in the 'domain suffix' field MUST include only one
item, and MUST be encoded as specified in the section of RFC3315 item, and MUST be encoded as specified in the section of RFC3315
titled "Representation and use of domain names". titled "Representation and use of domain names".
2.1 Usage 2.1 Usage
A DHCPv6 client MUST include the option code in Option Request A DHCPv6 client MUST include the option code in Option Request
Option [RFC3315] if it desires the domain suffix option, and the Option [RFC3315] if it desires the domain suffix option, and the
DHCPv6 server SHOULD include this option in an Advertise or Reply DHCPv6 server SHOULD include this option in an Advertise or Reply
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administrative policy, and is therefore not specified in this administrative policy, and is therefore not specified in this
document. document.
3. Security Considerations 3. Security Considerations
Security considerations in DHCP are described in section 23, Security considerations in DHCP are described in section 23,
"Security Considerations" of RFC3315. "Security Considerations" of RFC3315.
4. IANA Considerations 4. IANA Considerations
IANA is requested to assign a DHCPv6 option code for the Domain IANA is requested to assign a DHCPv6 option code for the
Suffix Option. OPTION_DOMAIN_SUFFIX.
5. Acknowledgements 5. Acknowledgements
The authors thank Ralph Droms, Ted Lemon, Bernie Volz, Tatuya Jinmei, The authors thank Ralph Droms, Ted Lemon, Bernie Volz, Tatuya Jinmei,
Joe Quanaim, Stefaan De Cnodder, and Stig Venaas for valuable Joe Quanaim and Stefaan De Cnodder for valuable discussions and
discussions and comments. comments.
6. References 6. References
6.1 Normative References 6.1 Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997. Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC3315] Bound, J., Carney, M., Perkins, C., Lemon, T., Volz, B. [RFC3315] Bound, J., Carney, M., Perkins, C., Lemon, T., Volz, B.
and R. Droms (ed.), "Dynamic Host Configuration Protocol and R. Droms (ed.), "Dynamic Host Configuration Protocol
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Research & Development Center Research & Development Center
China Mobile Communications Corporation China Mobile Communications Corporation
53A, Xibianmennei Ave., Xuanwu District, 53A, Xibianmennei Ave., Xuanwu District,
Beijing, 100053 P.R. China Beijing, 100053 P.R. China
Phone: +86 (10) 6600-6688, ext. 3062 Phone: +86 (10) 6600-6688, ext. 3062
Email: duanxiaodong@chinamobile.com Email: duanxiaodong@chinamobile.com
Full Copyright Statement Full Copyright Statement
Copyright (C) The Internet Society (2005). Copyright (C) The Internet Society (2006).
This document is subject to the rights, licenses and restrictions This document is subject to the rights, licenses and restrictions
contained in BCP 78, and except as set forth therein, the authors contained in BCP 78, and except as set forth therein, the authors
retain all their rights. retain all their rights.
This document and the information contained herein are provided on an This document and the information contained herein are provided on an
"AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS
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ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED,
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