UDR_IPTV

Configure IGMP Proxy on UDR to get IPTV work on Unifi Dream Router

Configuring Internal LAN

(Source: Create IPTV LAN according to https://github.com/fabianishere/udm-iptv#configuring-internal-lan)

To operate correctly, the IPTV decoders on the internal LAN possibly require additional DHCP options. You can add these DHCP options as follows:

1. In your UniFi Dashboard, go to Settings > Networks.

2. Select the LAN network on which IPTV will be used. We recommend creating a separate LAN network for IPTV traffic if possible in order to reduce interference of other devices on the network.

3. Enable Advanced > IGMP Snooping, so IPTV traffic is only sent to devices that should receive it.

4. Go to Advanced > DHCP Option and add the following options:

   Name	Code	Type	Value
   IPTV	60	Text	IPTV_RG
   Broadcast	28	IP Address	BROADCAST_ADDRESS

   Replace BROADCAST_ADDRESS with the broadcast address of your LAN network. To get this address, you can obtain it by setting all bits outside the subnet mask of your IP range, for instance:

   192.168.X.1/24 => 192.168.X.255
   192.168.0.1/16 => 192.168.255.255
   

   See here for more information.

Install IGMP Proxy on UDR

1. Make sure you have enable SSH access to the UDR (source: https://evanmccann.net/blog/2020/5/udm-ssh) Enable SSH in the UDR Device settings: Click on the gear icon to access the UDR device settings Click on Advanced Enable SSH and set your SSH password
2. SSH to the UDR using the credentials created in 1.
3. apt install igmpproxy
4. run ifconfig to find the broadcast interface for the IPTV LAN (For me it is br3

br3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.4.1  netmask 255.255.255.0  broadcast 0.0.0.0

6. Edit the file /etc/igmpproxy.conf to look like this:

quickleave

##------------------------------------------------------
## Configuration for eth4 (Upstream Interface)
##------------------------------------------------------
phyint eth4 upstream  ratelimit 0  threshold 1
       altnet 192.168.0.0/24

##------------------------------------------------------
## Configuration for br4 (IPTV Broadcast Interface)
##------------------------------------------------------
phyint br3 downstream ratelimit 0 threshold 1

5. Run igmpproxy with debug and verbose flags

igmpproxy -v -d /etc/igmpproxy.conf

6. Check the output to find the subnets of you provider and update /etc/igmpproxy.conf with them, example:

quickleave

##------------------------------------------------------
## Configuration for eth4 (Upstream Interface)
##------------------------------------------------------
phyint eth4 upstream  ratelimit 0  threshold 1
       altnet 192.168.0.0/24
       altnet 233.89.188.0/24
       altnet 239.251.255.0/24
       altnet 239.255.255.0/24
       altnet 94.246.72.0/24
       altnet 88.87.37.0/24

##------------------------------------------------------
## Configuration for br4 (IPTV Broadcast Interface)
##------------------------------------------------------
phyint br4 downstream ratelimit 0 threshold 1

7. Set the Port Profile on the port where you have the setop box to use the IPTV LAN
8. Create systemd config: /etc/systemd/system/igmpproxy.service

[Unit]
Description=igmpproxy

[Service]
User=root
ExecStart=/usr/sbin/igmpproxy /etc/igmpproxy.conf
Restart=always

[Install]
WantedBy=multi-user.target

10. Start the igmp proxy systemd service

systemctl start igmpproxy.service