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CurrentINTERNET STANDARDIETF streamSTD101

RFC 9777: Multicast Listener Discovery Version 2 (MLDv2) for IPv6

In plain English — editorial summary, not part of the RFC

This document specifies the Multicast Listener Discovery version 2 (MLDv2) protocol. MLD is used by an IPv6 router to discover the presence of multicast listeners on directly attached links and to discover which multicast addresses are of interest to those neighboring nodes. MLDv2 is designed to be interoperable with MLDv1. MLDv2 adds the ability for a node to report interest in listening to packets with a particular multicast address only from specific source addresses or from all sources except for specific source addresses. This document updates RFC 2710 and obsoletes RFC 3810.

Document record

Document ID
RFC9777
Published
March 2025
Authors
B. Haberman
Status
INTERNET STANDARD
Stream
IETF
Area
rtg
Pages
56
Also known as
STD101
Obsoletes:
RFC 3810
Updates:
RFC 2710

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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

Last checked against the RFC Editor index on . RFCs are never revised after publication; changes are issued as new documents.

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canonical URL: /rfc/9777-multicast-listener-discovery-version-2-mldv2-for-ipv6