Technical data

Multicast MAC Transparency Feature

Command to see which multicast groups are currently active:

show igmp-snoop forwarding-table

Command to see which stations have joined multicast groups:

show igmp-snoop subscription-table

Multicast MAC Transparency Feature

This feature enables MAC transparency for tunneled multicast, which is needed for

some clients to receive multicast packets. Multicasting is an advanced feature and can

cause subtle changes in your network. By default, multicasting is disabled. To enable it,

use either the multicast-enable command (see example below) or Configuration > Wire-

less > ESS > Add in the Web UI (see example below).

Enable Multicast From the Web UI

To enable multicasting from the Web UI, add or modify an ESS. For directions, see

Add an ESS with the Web UI.

Enable Multicast with the CLI

The following example enables multicasting with the CLI:

controller(config-essid)# multicast-enable

For command details, see the Meru System Director Command Reference.

View Mapping Between VLANs and ESS Profiles

Use the following command to see the VLANs and ESS profiles currently mapped:

controller(config-essid)# show vlan ess-profile

For command details, see the Meru System Director Command Reference.

Caution!

Multicasting is an advanced feature. Enabling multicasting in the WLAN

can cause subtle changes in your network. Contact Meru Networks Customer Service

Technical Assistance Center before enabling multicasting.