EdgeRouter - IGMP Proxy


Readers will learn how to configure an IGMP proxy on the EdgeRouter.

Applicable to the latest EdgeOS firmware on all EdgeRouter models. Please see the Related Articles below for more information.
Device used in this article:

IGMP Proxy Setup

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CLI: Access the Command Line Interface.You can do this using the CLI button in the GUI or by using a program such as PuTTY.

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 page 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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