Alles anzeigenYou could file a bug report and ask Volker to add the prerouting to the action dropdown.
You really need the prerouting added to the actions option. Then it can be entered in the web-gui.
Opps, I hadnt seen your edit I opened one too right after you it seems: http://bugtracker.openmediavault.org/view.php?id=1140
Thanks for the help anyway. I'll have to test the rules in another file later as the server is currently busy. I'll report back when I do.