IPv6 Path MTU Option

Document Type Expired Internet-Draft (individual)
Author Erik Kline 
Last updated 2020-01-09 (latest revision 2019-07-08)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document describes an IPv6 Neighbor Discovery (ND) Path MTU Option (PMO) for inclusion in Router Advertisements (RAs). This allows some environments greater flexibility to support, for example, a higher MTU for on-link or intra-administrative-domain communications than for broader Internet communications.


Erik Kline (ek@loon.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)