ZyXEL Communications MGS-3712F User Manual page 220

Chapter 24 Multicast
To set the Switch to forward the multicast group traffic to the subscribers,
configure multicast group settings in the Group Configuration screen. The
following figure shows an example where two multicast groups (News and
Movie) are configured for the multicast VLAN 200.
Figure 115 MVR Group Configuration Example
Figure 116 MVR Group Configuration Example
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MGS-3712/MGS-3712F User's Guide