Thanks Ferret,shall i use the ip of the dreambox of the other house?and from my router(my home) i need to open ports 21 and 80or other or other ports ?
Easiest Method is -
Install tspanel on both DM800's
Use tspanel to back your channel list up to a USB stick on Dreambox A!
Move USB stick from Dreambox A to Dreambox B!
Use tspanel on Dreambox B to restore your channels list on Dreambox B!
No its not the IP of the Dreambox you need in this case you need the ISP IP or a DNS account. You need that sorted before we can begin to instruct you ho to do this.