Use igmpproxy with Flint2 @ GL firmware

Hello,
I have now my internet connexion back at home, with a new ISP.
In France, we have a box provided by our ISP, it's a router with other functionalities as phone, and TV with another box called TV-Box.

With my Flint2 between the Box (server) and the Box-TV, the last one can't get a TV stream, so I don't get any TV channels.

I was told that I have to use igmpproxy and to set the firewall to let pass IGMP packets and UDP multicast.

But I don't know what to do to achieve this.

For igmpproxy, I see this : [OpenWrt Wiki] IPTV / UDP multicast
Will it works well with GL firmware ? (I'm on 4.7.0 official).

For IGMP packets and UDP mutlicast, how can I set them to pass ?

Thanks in advance :wink:
Have a good day.

If your TV box is directly connected to the ISP box (modem), does the TV box Ethernet cable need to be connected to a dedicated port of the ISP box?

If so, when adding a Flint 2 between the ISP box (modem) and the TV box, besides enabling IGMP, might VLAN configuration also be necessary to route the TV box traffic through Flint 2 to a dedicated port on the ISP box.

If you enable the IGMP Snooping on the GL GUI > NETWORK > IGMP?

Hello :wave:t2:
No, if I connect the tv box to the isp box, there is no dedicated port to use, any port on the isp box will work.

VLAN may not be needed if I understood what I’ve been told on another (French) forum.

I don’t have the possibility to connect with a cable the tv box to the isp box. They aren’t on the same floor.

Here a simplified diagram of my network configuration (Bbox Must = ISP box , and Bbox 4K = TV box):


I only have 2 cables, and the flint2 need to be on my ground floor. I don’t want it on the basement.

My question was : will the igmpproxy app installed with opkg works fine without interfering with the GL interface ? (As I was told here to not use opkg :sweat_smile:)
I understand it’s an old version, and I may be needed to go on op24 GL firmware.

It’s already ON.
But TV isn’t working .

Edit:
I must add that TV box can work with wifi connection with the isp box. That’s how I connected it for now to have TV, but I would prefer the wired connection on the flint2 to shut down the isp box wifi , the Flint2 is very good and all my network stuff is connected to it :blush:

Trying to compile plugin mcproxy (GitHub - mcproxy/mcproxy: Multicast Proxy for IGMP/MLD), and upload to GL feed.
It will not conflict with IGMP Snooping of the GL firmware.

I just communicated with R&D that IGMP Snooping in GL firmware may be similar to IGMP proxy. After it enabled, it allows multicast from ISP modem/box to reach the client (TV box) through GL router.

However, we do not have the relevant topology/environment to know whether the TV-related data reception and transmission are normal.
You may need to explore and test it.

BTW, based on our experience with IPTV, I remember the data of TV box and modem/box provided by ISP should be available via VLAN, not sure how your ISP handles IPTV data.

Hello @bruce

Sorry for the delai of my answer... work and kid !

Do I follow steps from this doc : [OpenWrt Wiki] IPTV / UDP multicast ?

I aloready activated it, but no luck.

Yeah, me too...

As i was told elsewhere, it may be a VAN 100 . Is it possible to forward such a VLAN from the WAN interface to the LAN interface ? The TV Box will be connected directly to one port of the Flint2 as they are near each other.

Thanks for your help :slight_smile:

If you are going to setup the VLAN, may not need to focus on igmp/udp multicast, please try setting up a VLAN on Flint 2, that the IPTV (TV Box) data can be specifically through VLAN from TV box > Flint 2 > ISP modem.

Here some video to learn how to set up the VLAN: