So VLC asks me to enter an url containing the M3U file but I don't really know how to do is. Whenever I go to my Dreambox url, which is 192.168.1.3, I can see all the channels but how am I supposed to get the m3u link?
Sorry for my English (not my first language)
It depends on the provider you use. Your reseller should be able to provide you with the m3u url for VLC.
I'd recommend sending your reseller an email.
192.168.x.x is an internal ip on your network and has nothing to do with iptv.