Linksys LAPAC1200C User Manual page 46

IGMP/MLD Snooping
IGMP
IGMP (Internet Group Management Protocol) is a communications
protocol used by hosts and adjacent routers on IP networks to
Snooping
establish multicast group memberships. IGMP is an integral part of IP
multicast.
IGMP snooping streamlines multicast traffic handling by examining
(snooping) IGMP membership report messages from interested
hosts, multicast traffic is limited to the subset of ports on which the
hosts reside.
IGMP snooping is enabled by default in the access point
The access point supports IGMPv1, IGMPv2 and IGMPv3 in IGMP
Snooping.
MLD Snooping
MLD (Multicast Listener Discovery) 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
IGMP is used in IPv4.
Multicast Listener Discovery (MLD) Snooping provides multicast
containment by forwarding traffic only to those clients that have
MLD receivers for a specific multicast group (destination address).
The access point maintains the MLD group membership information
by processing MLD reports and generating messages so traffic can
be forwarded to ports receiving MLD reports.
MLD snooping is enabled by default in the access point
The access point supports MLDv1 and MLDv2 in MLD Snooping.
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