Dynalink RTA1025W Manuel D’Utilisation

Chapter 4: Web Configuration 

                                                                                                                                                                                       

forward the multicast traffic to all hosts on all interfaces and consequently block and 
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.