¿Cómo habilito la multidifusión en mi enrutador?

How do I enable multicast on my router?

To enable multicast routing, from Policy Manager:

1. Select Network > Multicast. The Multicast Setup dialog box appears.
2. Select the Enable Multicast Routing check box. This enables the PIM-SM multicast routing protocol globally. You must continue to Step 3 and add multicast interfaces for multicast routing to work.

Unmanaged switches will flood multicasts, while some routers may not support multicast traffic at all. However, many switches and routers can be configured to support multicast traffic, and that support is based on the network addresses uses by multicasts. The “Group” IP is in the range starting of 224.0.

Multicast uses network infrastructure efficiently by requiring the source to send a packet only once, even if it needs to be delivered to a large number of receivers. The nodes in the network take care of replicating the packet to reach multiple receivers only when necessary.

You cannot multicast on the public Internet, but you can multicast across the public Internet to another site by using a tunnel that supports multicast. Multicast routing is very different from unicast routing, and all the routers in the path of the multicast packets need to have multicast routing configured.

Multicast IP Routing protocols are used to distribute data (for example, audio/video streaming broadcasts) to multiple recipients. Using multicast, a source can send a single copy of data to a single multicast address, which is then distributed to an entire group of recipients.

Multicast protocols such as UDP/IP and RTP/IP are used to broadcast data to any number of receiving devices. Unlike unicast TCP data, if a packet is not received, there is no mechanism or attempt to verify that and resend the packet. Multicast is widely used for video and audio data.

The addresses range between 224.0.0.0 and 224.0.0.255 is reserved for use by routing and maintenance protocols inside a network. These addresses aren’t forwarded by routers. Many of the multicast addresses are reserved see Muticast Space Registry On a small home or office network any host can send and receive multicast datagrams.

Like unicast routing, multicast routing has several available protocols, such as Protocol Independent Multicast dense mode (PIM-DM), PIM sparse mode (PIM-SM), Distance Vector Multicast Routing Protocol (DVMRP), Multicast Border Gateway Protocol (MBGP), and Multicast Source Discovery Protocol (MSDP).

This static mroute states that to get to the address 1.1.1.1 for RPF, use 2.1.1.1 as the next hop which is out interface E3/1. The output of show ip mroute and debug ip mpacket looks good, the number of sent packets in the show ip mroute count increases, and HostA receives packets.

IGMP report packets from wireless clients are consumed or absorbed by the controller, which generates a query for the clients. After the router sends the IGMP query, the controller sends the IGMP reports with its interface IP address as the listener IP address for the multicast group.