What is IGMP Access Group?

What is IGMP Access Group?

The ip igmp access-group command accepts standard or extended-format access lists. Because the extended format enables you to specify both the source address and the destination group address, the source address must be set to any. For example, access-list test permit ip host 224.128. 64.32 any.

How do I join the IGMP group?

When an IGMP client connected to a switch port needs to receive multicast traffic from a specific group, it joins the group by sending an IGMP report (join request) to the network. (The multicast group specified in the join request is determined by the requesting application running on the IGMP client.)

What does IP IGMP snooping do?

IGMP snooping is a method that network switches use to identify multicast groups, which are groups of computers or devices that all receive the same network traffic. It enables switches to forward packets to the correct devices in their network.

How does a device join a multicast group?

A device can join a group by sending an IGMP “membership report” message to the group IP address. This packet is received by a multicast router on the segment, and the router does whatever is necessary to start forwarding the data stream to this device.

Is IGMP required?

IGMP is required for this product because the total amount of network traffic across the network needs to be reduced to avoid impacting the other connected devices. Without IGMP, the video extender would send the video signal to each of the devices on your network.

Why is IGMP important?

IGMP is an integral part of IP multicast and allows the network to direct multicast transmissions only to hosts that have requested them.

How does a client join a multicast group?

Which method is used to join a group in multicast group?

The join(InetAddress,NetworkInterface) method is used to join a group and receive all multicast datagrams sent to the group. A channel may join several multicast groups and may join the same group on several interfaces .

How do I configure an IGMP group Access Group?

To configure an Internet Group Management Protocol (IGMP) group access group, use the ip igmp snooping access-group command in the interface configuration, bridge domain configuration, or Ethernet service configuration mode. To remove the IGMP group access group, use the no form of this command. Number of the Access Control List (ACL).

How do I pass the IP access list in an IGMP?

Allows a source address or group address in an IGMP report to pass the IP access list. You must have at least one permit statement in an access list. Repeat this step to allow other sources to pass the IP access list. This example shows how to allow group membership to sources and groups not denied by prior deny statements.

How do I Turn Off IGMP helper-address?

ip igmp helper-address. To cause the system to forward all Internet Group Management Protocol ( IGMP) host reports and leave messages received on the interface to the specified IP address, use the ip igmp helper-address command in interface configuration mode. To disable such forwarding, use the no form of this command.

How do I use the IP IGMP static-group command?

The ip igmp static-group command is used as a solution in order to forward the traffic from the router R1 towards the router R4 in a static fashion. In this scenario, the router R1 sends a PIM Join request upstream (to the source or RP) and attracts the multicast stream (10.1.3.3, 232.1.1.1).