I do not use a MagentaTV device. But I do use an Apple TV device and that works very well. I have also tried a Roku Ultra device and that worked fine. My sister is using Amazon Fire TV devices and those work well for her.
There were no changes to the IPFire box to make those device work.
So if the MagentaTV device is similar to the above devices you should be OK.
We have all tools needed available. However, I have not heard in a long time that this work, or that it does not work. It seems that not many people are using this product any more.
I’m using MagentaTV on my IPFire home box without any problems.
There was a discussion if the distributed version is capable of IGMPv3 handling. My understanding was, that only IGMPv2 is supported which is not used bei BNG Magenta TV anymore.
There’s an enhanced and nearly complete rewrite of igmpproxy on github which definitely supports IGMPv3.
Anyway, before building a customized Addon I tried the igmpproxy from Pakfire and it worked out of the box with IGMPv3! No problems so far.
Here is my config for German MagentaTV (BNG):
no, 192.168.1.20 is the fixed IP of my MagentaTV box, say the TV receivers’ IP.
You just have to change this IP to the one of your receiver. Check that it’s not getting its IP via DHCP (or make sure, it gets a fixed one).
You need to setup the firewall config file as well, as described in the according wiki section Configuration for BNG.