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my internet provider has tv service (IPTV). The infrastructure is

ONT-> Router (LAN- wifi) -> TV deco

I want to filter content from TV (youtube app). Then i add raspberry with 2 interfaces

ONT-> Router -> Raspberry -> TV Deco

if i route traffic in Raspberry with iptables

sudo /sbin/iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
sudo /sbin/iptables -A FORWARD -i eth0 -o eth1 -m state --state RELATED,ESTABLISHED -j ACCEPT 
sudo /sbin/iptables -A FORWARD -i eth1 -o eth0 -j ACCEPT

TV deco has internet, but can not view tv content

if i create a bridge

sudo ip link set dev br0 up
sudo ip link set dev eth0 master br0
sudo ip link set dev eth1 master br0

I have TV content, but not internet

Any idea?

Nacho
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1 Answers1

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I'm sorry, I have very little network background, but I'm sure you need to accept/NAT IGMP traffic, this stackoverflow post looks that might be helpful for you: How do I forward multicast traffic between 2 differant lans using iptables?

Devourer
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  • finally fix the problem by installing in my raspberry igmpproxy [link](https://github.com/pali/igmpproxy) – Nacho Aug 14 '20 at 17:50