DIR-842V2  AC1200 Wi-Fi Gigabit Router 
User Manual 
Configuring via Web-based Interface 
 
 
 
 
IGMP/MLD
 
On the Functions/ Advanced / IGMP/MLD page, you can allow the router to use IGMP and 
MLD and specify needed settings. 
IGMP  and  MLD  are  used  for  managing  multicast  traffic  (transferring  data  to  a  group  of 
destinations) in IPv4 and IPv6 networks correspondingly. These protocols allow using network 
resources for some applications, e.g., for streaming video, more efficiently. 
 
Figure 163. The Functions / Advanced / IGMP/MLD page. 
The following elements are available on the page: 
 
Parameter  Description 
IGMP 
Enable 
Move the switch to the right to enable IGMP. 
IGMP version 
Select a version of IGMP from the drop-down list. 
Interface 
From the drop-down list, 
select a connection of the Dynamic IPv4 or 
Static IPv4 type for which you need to allow multicast traffic (e.g.
streaming video). 
MLD 
Enable 
Move the switch to the right to enable MLD. 
MLD version 
Select a version of MLD from the drop-down list. 
Interface 
From the drop-
down list, select a connection of the Dynamic IPv6 or 
Static IPv6 type for which you need to allow multicast traffic (e.g.
streaming video). 
After specifying the needed parameters, click the APPLY button.