Thanks for your reply, it's appreciated.
I'm willing to remove the IPsec link then, if there is no other way.
Basically I just want an RJ45 port on pfSense2 that connects to an RJ45 of pfSense1, like it was just a simple switch inbetween them.
So I have to use GIF then. I don't mind that the traffic is not encrypted (it's just an IPTV stream), but would that also mean that my pfSense could be entered more easily by hackers?
Can you point me a bit in the right direction? So on both sides I create a new GIF interface. What would I use as the "GIF tunnel local address" and "GIF tunnel remote address"? Can I use something random (like 10.0.0.1 and 10.0.0.2) or does it needs to be in the IP range that the TV decoder uses?
Thanks!