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How does multicast work in IPv6?
IPv6 defines three types of addresses: unicast, anycast, and multicast. Each type of address enables a device to send datagrams to selected recipients: A multicast address enables a device to send a datagram to a specified set of hosts, known as a multicast group, in different subnetworks. …
Does IPv6 have multicast?
Unlike IPv4, there is no broadcast address in IPv6. Instead, IPv6 uses multicast, including an all-IPv6 devices well-known multicast address and a solicited-node multicast address.
What is the purpose of an IPv6 multicast address?
The IPv6 multicast address provides a method for distributing identical information or services to a defined group of interfaces, called the multicast group. Typically, the interfaces of the multicast group are on different nodes. An interface can belong to any number of multicast groups.
Which protocol does a host use to request IPv6 multicast traffic?
On the local network, multicast delivery is controlled by IGMP (on IPv4 network) and MLD (on IPv6 network); inside a routing domain, PIM or MOSPF are used; between routing domains, one uses inter-domain multicast routing protocols, such as MBGP.
How to enable multicast routing in IPv6?
Multicast-Routing in IPv6 environment is explicitly enabeled in Global Configuration mode by command “ipv6 multicast-routing”. The effect of this command is seen on all IPv6-enabled interfaces on the router which are then automatically enabled also for PIMv6.
How does IPv6 multicast differ from traditional communication?
Traditional IP communication allows a host to send packets to a single host (unicast transmission) or to all hosts (broadcast transmission). IPv6 multicast provides a third scheme, allowing a host to send a single data stream to a subset of all hosts (group transmission) simultaneously.
What does the Solicited-Node multicast address mean?
The solicited-node multicast address is a multicast group that corresponds to an IPv6 unicast or anycast address. IPv6 nodes must join the associated solicited-node multicast group for every unicast and anycast address to which it is assigned.
What is multicast address field in report message?
Report–In a report message, the multicast address field is that of the specific IPv6 multicast address to which the sender is listening. Done–In a done message, the multicast address field is that of the specific IPv6 multicast address to which the source of the MLD message is no longer listening.