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EdgeRouter - IGMP Proxy


Readers will learn how to configure the IGMP Proxy feature on the EdgeRouter.

  • Applicable to the latest EdgeOS firmware on all EdgeRouter models.

IGMP Proxy Setup

CLI: Access the Command Line Interface.

1. Enter configuration mode.


2. Define the upstream and downstream interface roles.

set protocols igmp-proxy interface eth0 role upstream
set protocols igmp-proxy interface eth1 role downstream
NOTE: Only a single upstream interface is supported.

3. Configure the threshold and alt-subnet values for both interfaces.

set protocols igmp-proxy interface eth0 threshold 1
set protocols igmp-proxy interface eth0 alt-subnet

set protocols igmp-proxy interface eth1 threshold 1
set protocols igmp-proxy interface eth1 alt-subnet
NOTE: These values can be customized to be more restrictive. See the igmpproxy.conf manual for more information.

4. Commit the changes and save the configuration.

commit ; save 

You can verify the forwarding of multicast traffic using the following commands:

show ip multicast mfc
Group           Origin           In     Out           Pkts         Bytes  Wrong      eth0   eth1        120875      154.93MB      0

show ip multicast interfaces
Intf        BytesIn        PktsIn      BytesOut       PktsOut            Local
eth0       173.47MB        135343         0.00b             0
eth1          0.00b             0      173.47MB        135343

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