Multicast Listener Discovery

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Template:Short description Template:IPstack

Multicast Listener Discovery (MLD) is a component of the Internet Protocol Version 6 (IPv6) suite. MLD is used by IPv6 routers for discovering multicast listeners on a directly attached link, much like Internet Group Management Protocol (IGMP) is used in IPv4. The protocol is embedded in ICMPv6 instead of using a separate protocol. MLDv1 is similar to IGMPv2Template:Ref RFC and MLDv2 similar to IGMPv3.Template:Ref RFC

Protocol

The following ICMPv6 message types are used:

ICMPv6 message type values[1]
Message Type value
Multicast Listener Query 130
MLDv1 Multicast Listener Report 131
MLDv2 Multicast Listener Report 143
Multicast Listener Done 132

Support

Several operating systems support MLDv2:

References

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