Name: Cisco 300 Series
Brand: Cisco
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Multicast

Configuring IGMP Snooping

258 Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version)

• Source IP Address—Defines the source address to be included.

STEP 6 Click Apply. The IP Multicast group is added, and the device is updated.

STEP 7 To configure and display the registration of an IP group address, select an address

and click Details.

The VLAN ID, IP Version, IP Multicast Group Address, and Source IP Address

selected are displayed as read-only in the top of the window. You can select the

filter type:

• Interface Type equals to—Select whether to display ports or LAGs.

STEP 8 For each interface, select its association type. The options are as follows:

• Static—Attaches the interface to the Multicast group as a static member.

• Forbidden—Specifies that this port is forbidden from joining this group on

this VLAN.

• None—Indicates that the port is not currently a member of this Multicast

group on this VLAN. This is selected by default until Static or Forbidden is

selected.

STEP 9 Click Apply. The Running Configuration file is updated.

Configuring IGMP Snooping

To support selective Multicast forwarding (IPv4), Bridge Multicast filtering must be

enabled (in the Properties page), and IGMP Snooping must be enabled globally

and for each relevant VLAN (in the IGMP Snooping page).

By default, a Layer 2 device forwards Multicast frames to all ports of the relevant

VLAN, essentially treating the frame as if it were a Broadcast. With IGMP Snooping

the device forwards Multicast frames to ports that have registered Multicast

clients.

NOTE The device supports IGMP Snooping only on static VLANs. It does not support

IGMP Snooping on dynamic VLANs.

Model

Cisco 300 Series

Cisco 300 Series Administration Guide

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