A new Request for Comments is now available in online RFC libraries. STD 87 RFC 8201 Title: Path MTU Discovery for IP version 6 Author: J. McCann, S. Deering, J. Mogul, R. Hinden, Ed. Status: Standards Track Stream: IETF Date: July 2017 Mailbox: bob.hinden@gmail.com Pages: 19 Characters: 42751 Obsoletes: RFC 1981 See Also: STD 87 I-D Tag: draft-ietf-6man-rfc1981bis-08.txt URL: https://www.rfc-editor.org/info/rfc8201 DOI: 10.17487/RFC8201 This document describes Path MTU Discovery (PMTUD) for IP version 6. It is largely derived from RFC 1191, which describes Path MTU Discovery for IP version 4. It obsoletes RFC 1981. This document is a product of the IPv6 Maintenance Working Group of the IETF. This is now an Internet Standard. 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 Official Internet Protocol Standards (https://www.rfc-editor.org/standards) 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 https://www.ietf.org/mailman/listinfo/ietf-announce https://mailman.rfc-editor.org/mailman/listinfo/rfc-dist For searching the RFC series, see https://www.rfc-editor.org/search For downloading RFCs, see https://www.rfc-editor.org/retrieve/bulk 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