Network Working Group H. Deng Internet-Draft H. Liu Intended status: Standards Track China Mobile Expires: May 15, 2008 November 12, 2007 Service Identfiers List Option for DHCPv6 draft-deng-dhc-service-identifiers-00 Status of this Memo By submitting this Internet-Draft, each author represents that any 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 aware will be disclosed, in accordance with Section 6 of BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet- Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt. The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. This Internet-Draft will expire on May 15, 2008. Copyright Notice Copyright (C) The IETF Trust (2007). Deng & Liu Expires May 15, 2008 [Page 1] Internet-Draft Service Identifiers November 2007 Abstract This document describes a new option for DHCPv6 [RFC3315] that provides a mechanism for specifying a list of service identifer which this connection support or don't support. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Service Identifiers List Option . . . . . . . . . . . . . . . 4 3. Option usage . . . . . . . . . . . . . . . . . . . . . . . . . 5 4. Security Considerations . . . . . . . . . . . . . . . . . . . 6 5. IANA Consideration . . . . . . . . . . . . . . . . . . . . . . 7 6. Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . 8 7. Normative References . . . . . . . . . . . . . . . . . . . . . 9 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 10 Intellectual Property and Copyright Statements . . . . . . . . . . 11 Deng & Liu Expires May 15, 2008 [Page 2] Internet-Draft Service Identifiers November 2007 1. Introduction With the various kind of promising wireless broadband access technologies, there are more possbilities that mobile node could have multiple connections which may provide different kind of service available. In some cases, the operator would like to let the mobile node to know what kind of services it allow or doesn't allow in this connection. It may influence network routing,policy and quality of service, et al. consideration. Deng & Liu Expires May 15, 2008 [Page 3] Internet-Draft Service Identifiers November 2007 2. Service Identifiers List Option The format of the Service Identifiers List Option is: 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 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | option-code | option-length | +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | list-type | | +-+-+-+-+-+-+-+-+ + . Service Identifier . . Service Identifier . . ........ . +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ | list-type | | +-+-+-+-+-+-+-+-+ + . . . Service Identifiers . . Service Identifiers . +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ option-code: OPTION_SERVICE_IDENTIFIER (TBD). option-length: length of the "service identifier list" field in octets. list-type: The type of service identifer: 0 Supported 1 Not Supported Identifier A variable length UTF-8 encoded service identifier string used to identify the requested service. 'ims', 'voip' and 'p2p' are valid examples of Service Identifiers. Deng & Liu Expires May 15, 2008 [Page 4] Internet-Draft Service Identifiers November 2007 3. Option usage There are various kind of wireless broadband access technologies, one mobile node may has multiple wireless cards, subscriber may choose different connection for different service. So a DHCPv6 server may provide a list of service identifiers option to different clients. The mobile node will decide which service may take which connection based on this advertisement of this dhcp option. This option could be advertised to dhcp client after authentication procedure to guarantee eligible subscriber could get this information. Deng & Liu Expires May 15, 2008 [Page 5] Internet-Draft Service Identifiers November 2007 4. Security Considerations Security considerations in DHCP are described in section 23, "Security Considerations" of RFC3315. Deng & Liu Expires May 15, 2008 [Page 6] Internet-Draft Service Identifiers November 2007 5. IANA Consideration This document defines new DHCPv6 options, and IANA is requested to assign the following new DHCPv6 Option Codes in the registry maintained in http://www.iana.org/assignments/dhcpv6-parameters: o OPTION_SERVICE_IDENTIFIER for the Service Identifier List option Deng & Liu Expires May 15, 2008 [Page 7] Internet-Draft Service Identifiers November 2007 6. Conclusion This document describes a new option for DHCPv6 [RFC3315] that provides a mechanism for specifying a list of service identifer which this connection support or don't support. Deng & Liu Expires May 15, 2008 [Page 8] Internet-Draft Service Identifiers November 2007 7. Normative References [RFC2131] Droms, R., "Dynamic Host Configuration Protocol", RFC 2131, March 1997. [RFC3315] Droms, R., Bound, J., Volz, B., Lemon, T., Perkins, C., and M. Carney, "Dynamic Host Configuration Protocol for IPv6 (DHCPv6)", RFC 3315, July 2003. Deng & Liu Expires May 15, 2008 [Page 9] Internet-Draft Service Identifiers November 2007 Authors' Addresses Hui Deng China Mobile 53A,Xibianmennei Ave., Xuanwu District, Beijing 100053 China Email: denghui@chinamobile.com Hong Liu China Mobile 53A,Xibianmennei Ave., Xuanwu District, Beijing 100053 China Email: liuhong@chinamobile.com Deng & Liu Expires May 15, 2008 [Page 10] Internet-Draft Service Identifiers November 2007 Full Copyright Statement Copyright (C) The IETF Trust (2007). This document is subject to the rights, licenses and restrictions contained in BCP 78, and except as set forth therein, the authors retain all their rights. 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Information on the procedures with respect to rights in RFC documents can be found in BCP 78 and BCP 79. Copies of IPR disclosures made to the IETF Secretariat and any assurances of licenses to be made available, or the result of an attempt made to obtain a general license or permission for the use of such proprietary rights by implementers or users of this specification can be obtained from the IETF on-line IPR repository at http://www.ietf.org/ipr. The IETF invites any interested party to bring to its attention any copyrights, patents or patent applications, or other proprietary rights that may cover technology that may be required to implement this standard. Please address the information to the IETF at ietf-ipr@ietf.org. Acknowledgment Funding for the RFC Editor function is provided by the IETF Administrative Support Activity (IASA). Deng & Liu Expires May 15, 2008 [Page 11]