NOTE: The default WLAN'MULTICAST access rule for IGMP traffic is set to DENY. This needs to be changed to ALLOW on all participating appliances to enable multicast, if they have multicast clients on their WLAN zones.
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a
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b
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Click the Apply button for each security appliance.
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a
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On the Network > Interfaces page for each interface on all security appliances participating, click the Edit icon for each interface.
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b
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Click the Advanced tab.
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c
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Select the Enable Multicast Support check box.
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a
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Navigate to the VPN > Settings page.
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b
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c
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Click the Advanced tab.
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d
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e
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Click OK.
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NOTE: The default WLAN'MULTICAST access rule for IGMP traffic is set to DENY. This needs to be changed to ALLOW on all participating appliances to enable multicast, if they have multicast clients on their WLAN zones.
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As multicast data is sent from the multicast server to the multicast group (224.0.0.0 through 239.255.255.255), the SonicWall security appliance queries its IGMP state table for that group to determine where to deliver that data. Similarly, when the appliance receives that data at the VPN zone, the appliance queries its IGMP state table to determine where it should deliver the data.
The IGMP state tables (upon updating) should provide information indicating that there is a multicast client on the X3 interface, and across the vpnMcastServer tunnel for the 224.15.16.17 group.
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NOTE: By selecting Enable reception of all multicast addresses, you might see entries other than those you are expecting to see when viewing your IGMP state table. These are caused by other multicast applications that might be running on your hosts.
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