D-Link DES-3226 User Manual page 86

To configure Multicast Port Filtering, select the ports from the Port List. Click the Apply button to add the ports to the forward
list.
Parameter
Port
forward_all_groups
forward_unregistered_groups
filter_unregistered_groups
Configure Ports from __ to __
DES-3226S Layer 2 Fast Ethernet Switch User's Guide
Figure 6 - 60. Edit Multicast Port Filtering
Description
Select the port number to configure.
Forward all multicast packets, i.e. no filtering takes places since multicast
packets from unregistered and registered multicast groups are forwarded in the
specified port group.
Forward only multicast packets from unregistered multicast groups. Multicast
packets from registered groups are dropped.
Filter all multicast packets from unregistered multicast groups. Multicast packets
from registered groups are forwarded.
Use this to specify a consecutively numbered group of ports on the Switch for
configuration.
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