Well, I was a little bit to premature with my conclusion... as soon as I configured a fixed IP address for the eth0 interface it fails to work properly. I can ping -I wwan0 8.8.8.8, but the netclient interface does not get it it should use the wwan0 interface instead of the eth0 interface... it is driving me crazy, it is soooo difficult to get it to work when the internet connection is not a regular eth0 interface....