{"draft":"draft-ietf-6lo-prefix-registration-18","doc_id":"RFC9926","title":"Prefix Registration for IPv6 Neighbor Discovery","authors":["P. Thubert, Ed."],"format":["HTML","TEXT","PDF","XML"],"page_count":"24","pub_status":"PROPOSED STANDARD","status":"PROPOSED STANDARD","source":"IPv6 over Networks of Resource-constrained Nodes","abstract":"This document updates IPv6 Neighbor Discovery (RFC 4861) and IPv6\r\nSubnet Neighbor Discovery (RFC 8505, RFC 8928) to enable a node that\r\nowns or is directly connected to a prefix to register that prefix to\r\nneighbor routers.  The registration indicates that the registered\r\nprefix can be reached via the advertising node without a loop.  The\r\nunicast prefix registration allows the node to request one or more\r\nneighbor routers to redistribute the prefix in another routing domain\r\nregardless of the routing protocol used in that domain.  This\r\ndocument updates the Routing Protocol for Low-Power and Lossy\r\nNetworks (RPL), as specified in RFCs 6550 and 9010, to enable a\r\n6LoWPAN Router (6LR) to inject the registered prefix in RPL.","pub_date":"February 2026","keywords":[],"obsoletes":[],"obsoleted_by":[],"updates":["RFC4861","RFC6550","RFC8505","RFC8928","RFC9010"],"updated_by":[],"see_also":[],"doi":"10.17487\/RFC9926","errata_url":null}