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Wireless IAD User Manual
82
interrupt the traffic of USB and wireless users, shown as the following figure.
When IGMP snooping is invoked, it makes the system aware to establish the best
path for multicast service to save LAN bandwidth. Refer the figure below, just as
desired, only host A and D will actually receive multicast traffic when IGMP snooping
is enabled.
While IGMP snooping is enabled, the IGMP packets will be monitored, the
membership information will be recorded and processed, and the multicast traffic will
only be forwarded to those LAN interfaces, such as Ethernet, Wireless, and USB,
which are bonded to the subscribed multicast groups. Thus it helps to save the
bandwidth and helps the devices to perform more effectively.
Check Enable IGMP Snooping and
click Apply to invoke this function.
When IGMP Snooping is enabled, you
can check the box below to filter out
multicast packets which will be sent to
your local network if no user plays
multimedia movies.
If the PVC you’re using is NAT
enabled, remember to turn on the
IGMP Proxy at the same time. Please
refer to Internet – IGMP Proxy for
more information.
Note that the IGMP proxy must be enabled
first. If the IGMP Snooping function is not
available as shown in the following figure,
you have to enable the IGMP Proxy first.