D-Link DES-3326 User Manual - page 199
DES-3326 Layer 3 Fast Ethernet Switch User’s Guide
Configuring the Switch Using the Console Interface
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guarantees that a multicast router – attached to the DES-3326 –
can reach all multicast group members.
To setup a static router port:
Highlight Setup Static Router Port from the Multicasting Menu
and press enter.
Figure 6-49. Static Router Port Setup
All IGMP Report packets will be forwarded to the router port.
IGMP queries (from the router port) will be flooded to all ports.
All UDP multicast packets will be forwarded to the router port.
Because routers do not send IGMP reports or implement IGMP
snooping, a multi-port router connected to the router port of the
Layer 3 switch would not be able to receive UDP data streams at
all of its ports unless the UDP multicast packets were all
forwarded to the router port.