Is there an advantage of using fabianishere/udm-iptv over the UDM built in igmp proxy?

[cinadr]

Sorry for the dumb question but what is the difference between this repo's software and the new settings that is came up in internet settings of ticking IGMP proxy on? I can configure on the UI to specify the network routing IGMP packages to. Also I can enable IGMP Snooping on this selected network and it is all working as expected (some sporadic stop of streams appear I can get over with play/pause sequence). I used udm-iptv back before this settings appeared but it is working with UDM build in right now. So I want to ask what is the benefit of using this software . I just want to know if there is some technical advantage that worth setting this up (lower memory or CPU usage, less traffic, etc.)?

[dmutsaers]

The native IGMP proxy option doesn't support VLAN on WAN.

https://community.ui.com/questions/Feature-Request-VLAN-Support-for-WAN-Port-on-UniFi-Routers/479234f3-d117-40eb-b1d0-424ce596225a

https://community.ui.com/questions/Double-VLAN-on-WAN-IPTV-support-solved-can-we-get-better-support-or-must-we-do-hard-wire-hacks/f20f4e33-13ee-453e-a215-d5763f20957e

[erikpost]

Well the main issue I think is that the Network Application doesn’t provide the ability to configure the things needed, ie a second network connection with a specific VLAN on the WAN side (which many ISPs use for IPTV), DHCP options and required routing.

The IGMP proxy technically supports it because it’s the exact same IGMP proxy used by the script but with a custom configuration.

[cinadr]

I understand the vlan requirement but it can be setup easily without tagging. I have my gateway in bridge mode and my udm pro is using pppoe connection as main wan. I have a second cable from my gateway from its LAN port to udm pro second WAN PORT (named IPTV) that is connecting via dhcp with NAT on the gateway. Than each set top box is selected for routing through this secondary connection and the igmp proxy is enabled on this second wan port. No need for vlan and the multicast traffic is only routed to the STBs (I assume). Am I missing something?
I admit that double cabling is not a nice way to solve this and I understand that vlan is the solution to achieve that. My question is that what else udm-iptv provides additionally to igmpproxy that it makes to not to pause streaming every 30-60minutes like the Unify solution?

[erikpost]

There are more ways to solve it, the udm-iptv script allows you to set up IPTV with a single UniFi (cloud) gateway without needing to cable specific VLANs to specific ports.

The script by default uses the same IGMP proxy program that UniFi uses when you enable the IGMP proxy setting in the Network Application (improxy). Plus it sets up the correct routing and DHCP options to make routed IPTV work. You technically don’t need a local VLAN for the STBs either but it can improve performance or ease troubleshooting.

Plus it’s been successfully used by many people so it works well in most cases.

As for the IGMP snooping, the script doesn’t do anything with that. You need to configure that correctly anyway if you’re using the script.

[ARTSRAY]

Has something changed with the latest Unifi firmware updates? I have a UDM SE trying multicast enablement to KPN and whatever I try, after reinstalling, the Fabian script does not work any longer. It fails to configure the IGMP part I believe. Reconfiguring drops an error: duplicate session or something alike.

[CharmiUwU]

I have this exact problem and I don't have IGMP Proxy activated...
Dec 07 01:19:17 Dream-Machine-Pro-Max systemd[1]: udm-iptv.service: Succeeded.
Dec 07 01:19:17 Dream-Machine-Pro-Max systemd[1]: Stopped IPTV support for the UniFi Dream Machine.
Dec 07 01:19:17 Dream-Machine-Pro-Max systemd[1]: Started IPTV support for the UniFi Dream Machine.
Dec 07 01:19:17 Dream-Machine-Pro-Max udm-iptvd[132847]: Device iptv already exists.. Deleting device
Dec 07 01:19:17 Dream-Machine-Pro-Max udm-iptvd[132847]: NATing IPTV network ranges (if necessary)
Dec 07 01:19:17 Dream-Machine-Pro-Max udm-iptvd[132847]: Creating static routes (if necessary)
Dec 07 01:19:17 Dream-Machine-Pro-Max udm-iptvd[132847]: Setting up IGMP Proxy
Dec 07 01:19:17 Dream-Machine-Pro-Max udm-iptvd[132847]: Using igmpproxy...
Dec 07 01:19:17 Dream-Machine-Pro-Max udm-iptvd[132847]: Starting IGMP Proxy
Dec 07 01:19:26 Dream-Machine-Pro-Max igmpproxy[132847]: can't join group 239.0.2.129 on interface iptv; Errno(98): Address already in use
Dec 07 01:19:31 Dream-Machine-Pro-Max igmpproxy[132847]: can't join group 239.0.2.129 on interface iptv; Errno(98): Address already in use
Dec 07 01:19:33 Dream-Machine-Pro-Max igmpproxy[132847]: can't join group 239.0.2.29 on interface iptv; Errno(98): Address already in use
root@Dream-Machine-Pro-Max:~# journalctl -u udm-iptv -n 20
-- Journal begins at Wed 2025-12-03 21:22:17 CET, ends at Sun 2025-12-07 01:21:31 CET. --
Dec 07 01:20:26 Dream-Machine-Pro-Max igmpproxy[132847]: can't join group 239.0.2.129 on interface iptv; Errno(98): Address already in use
Dec 07 01:20:31 Dream-Machine-Pro-Max igmpproxy[132847]: can't join group 239.0.2.129 on interface iptv; Errno(98): Address already in use
Dec 07 01:20:33 Dream-Machine-Pro-Max igmpproxy[132847]: can't join group 239.0.2.29 on interface iptv; Errno(98): Address already in use
Dec 07 01:20:36 Dream-Machine-Pro-Max igmpproxy[132847]: can't join group 239.0.2.129 on interface iptv; Errno(98): Address already in use
Dec 07 01:20:41 Dream-Machine-Pro-Max igmpproxy[132847]: can't join group 239.0.2.129 on interface iptv; Errno(98): Address already in use
Dec 07 01:20:43 Dream-Machine-Pro-Max igmpproxy[132847]: can't join group 239.0.2.29 on interface iptv; Errno(98): Address already in use
Dec 07 01:20:46 Dream-Machine-Pro-Max igmpproxy[132847]: can't join group 239.0.2.129 on interface iptv; Errno(98): Address already in use
Dec 07 01:20:51 Dream-Machine-Pro-Max igmpproxy[132847]: can't join group 239.0.2.129 on interface iptv; Errno(98): Address already in use
Dec 07 01:20:53 Dream-Machine-Pro-Max igmpproxy[132847]: can't join group 239.0.2.29 on interface iptv; Errno(98): Address already in use
Dec 07 01:20:56 Dream-Machine-Pro-Max igmpproxy[132847]: can't join group 239.0.2.129 on interface iptv; Errno(98): Address already in use
Dec 07 01:21:01 Dream-Machine-Pro-Max igmpproxy[132847]: can't join group 239.0.2.129 on interface iptv; Errno(98): Address already in use
Dec 07 01:21:03 Dream-Machine-Pro-Max igmpproxy[132847]: can't join group 239.0.2.29 on interface iptv; Errno(98): Address already in use
Dec 07 01:21:06 Dream-Machine-Pro-Max igmpproxy[132847]: can't join group 239.0.2.129 on interface iptv; Errno(98): Address already in use
Dec 07 01:21:11 Dream-Machine-Pro-Max igmpproxy[132847]: can't join group 239.0.2.129 on interface iptv; Errno(98): Address already in use
Dec 07 01:21:13 Dream-Machine-Pro-Max igmpproxy[132847]: can't join group 239.0.2.29 on interface iptv; Errno(98): Address already in use
Dec 07 01:21:16 Dream-Machine-Pro-Max igmpproxy[132847]: can't join group 239.0.2.129 on interface iptv; Errno(98): Address already in use
Dec 07 01:21:21 Dream-Machine-Pro-Max igmpproxy[132847]: can't join group 239.0.2.129 on interface iptv; Errno(98): Address already in use
Dec 07 01:21:23 Dream-Machine-Pro-Max igmpproxy[132847]: can't join group 239.0.2.29 on interface iptv; Errno(98): Address already in use
Dec 07 01:21:26 Dream-Machine-Pro-Max igmpproxy[132847]: can't join group 239.0.2.129 on interface iptv; Errno(98): Address already in use
Dec 07 01:21:31 Dream-Machine-Pro-Max igmpproxy[132847]: can't join group 239.0.2.129 on interface iptv; Errno(98): Address already in use

[erikpost]

This error usually means that there is another IGMP Proxy already running within your network. So make sure you have disabled the IGMP Proxy setting on your Primary Internet settings in UniFi Network Application.

[CharmiUwU]

It's off completely and I'm still getting the same error.

[cinadr]

@CharmiUwU Do you have dual WAN? Check both

[CharmiUwU]

Both WANs are disabled