D-Link DES-3018 - Manual (Page 87)

DES-3010F/DES-3010FL/DES-3010G/DES-3016/DES-3018/DES-3026 Fast Ethernet Switch Manual
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Multicast Filtering Mode
Use the Multicast Filtering Mode Setting menu to select one of two filtering options for multicast packets:
• Forward unregistered groups – This default setting will forward all multicast streams.
• Filter unregistered groups – This setting will only forward multicasts to registered multicast groups.
Multicasts to unregistered groups are blocked.
To view this window, click Administration > Forwarding & Filtering > Multicast Filtering Mode
Figure 6- 59. Configure Multicast Filtering Mode
Select the desired Multicast Filtering Mode setting and click Apply to effect the change.