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IGMP
This page allows you to configure Multicast Pass through.
IGMP Pass through:
IGMP is a communications protocol used to manage IP multicast groups. Checking this option results in IGMP Proxy being enabled for WAN (upstream) and LAN (downstream) interfaces. With this, the router will keep track of IGMP group membership reports from LAN hosts joining and leaving the group. The relevant multicast traffic is then forwarded from WAN to LAN.
Bind Upstream interface to: Select the WAN interface which will act as upstream in Load balancing mode. Only one WAN can act as upstream interface. The default is WAN1. For other WAN modes this option is not required.

Note: If the Bind Upstream interface ISP Type is PPPoE,PPPoA or PPTP, then the multicast traffic sender has to be specified in Alternate Networks.

Alternate Networks: If the multicast traffic sender is in a different subnet than the WAN interface, then the sender has to be specified separately here. This table lists the alternate networks from where the multicast traffic will originate apart from the WAN subnet.
To remove an entry from the table, select the alternate network entry and click Delete.

Add Alternate Network
IP Address : Enter the IP address of the sender.
Subnet Mask : Enter the subnet mask of the alternate network.

 

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