Issues and Recommendations with Multiple Stateful DHCPv6 Options (RFC7550)
Original Publication Date: 2015-May-01
Included in the Prior Art Database: 2015-May-21
Internet Society Requests For Comment (RFCs)
O. Troan: AUTHOR [+3]
DHCPv6 [RFC3315] was written without the expectation that additional stateful DHCPv6 options would be developed. DHCPv6 Prefix Delegation [RFC3633] since added a new stateful option for Prefix Delegation to DHCPv6. Implementation experience of the Customer Edge (CE) router model described in [RFC7084] has shown issues with the DHCPv6 protocol in supporting multiple stateful option types, in particular IA_NA (non-temporary addresses) and IA_PD (delegated prefixes).
Internet Engineering Task Force (IETF) O. Troan Request for Comments: 7550 B. Volz Updates: 3315, 3633 Cisco Systems, Inc. Category: Standards Track M. Siodelski ISSN: 2070-1721 ISC May 2015
Issues and Recommendations with Multiple Stateful DHCPv6 Options
The Dynamic Host Configuration Protocol for IPv6 (DHCPv6) specification defined two stateful options, IA_NA and IA_TA, but did not anticipate the development of additional stateful options. DHCPv6 Prefix Delegation added the IA_PD option, which is stateful. Applications that use IA_NA and IA_PD together have revealed issues that need to be addressed. This document updates RFCs 3315 and 3633 to address these issues.
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 5741.
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/rfc7550.
Troan, et al. Standards Track [Page 1]
RFC 7550 Multiple Stateful Options May 2015
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