A new Request for Comments is now available in online RFC libraries. BCP 177 RFC 6540 Title: IPv6 Support Required for All IP-Capable Nodes Author: W. George, C. Donley, C. Liljenstolpe, L. Howard Status: Standards Track Stream: IETF Date: April 2012 Mailbox: wesley.george@twcable.com, C.Donley@cablelabs.com, cdl@asgaard.org, lee.howard@twcable.com Pages: 6 Characters: 12883 See Also: BCP0177 I-D Tag: draft-ietf-intarea-ipv6-required-02.txt URL: http://www.rfc-editor.org/rfc/rfc6540.txt Given the global lack of available IPv4 space, and limitations in IPv4 extension and transition technologies, this document advises that IPv6 support is no longer considered optional. It also cautions that there are places in existing IETF documents where the term "IP" is used in a way that could be misunderstood by implementers as the term "IP" becomes a generic that can mean IPv4 + IPv6, IPv6-only, or IPv4-only, depending on context and application. This memo documents an Internet Best Current Practice. This document is a product of the Internet Area Working Group Working Group of the IETF. This is now a Proposed Standard Protocol. STANDARDS TRACK: This document specifies an Internet standards track protocol for the Internet community,and requests discussion and suggestions for improvements. Please refer to the current edition of the Internet Official Protocol Standards (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited. This announcement is sent to the IETF-Announce and rfc-dist lists. To subscribe or unsubscribe, see http://www.ietf.org/mailman/listinfo/ietf-announce http://mailman.rfc-editor.org/mailman/listinfo/rfc-dist For searching the RFC series, see http://www.rfc-editor.org/rfcsearch.html. For downloading RFCs, see http://www.rfc-editor.org/rfc.html. Requests for special distribution should be addressed to either the author of the RFC in question, or to rfc-editor@rfc-editor.org. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. The RFC Editor Team Association Management Solutions, LLC