NetworkManager thinks "usb0" is my default network port.

[Xamindar <junkxamindar gmail com>]

NetworkManager is now showing two "Wired Network" selections; one for my 
normal ethernet interface and one for my usb network interface, and of 
course the wireless networks.

I had this problem on Ubuntu and got so fed up that I went back to 
Gentoo where NetworkManager didn't have this problem.  But now it is 
doing it and I'm not sure at this moment if it is because I had my 
Zaurus plugged in (it is what I use usb0 for) on boot up or if it was 
caused by an update that I just ran.

For some reason networkmanager will now show my usb0 device which is not 
connected to the internet and in my case never will be used to connect 
to the internet.  I have usb0 set up in Gentoo configs to set a certain 
IP and Netmask for the interface whenever it comes up.  And it only 
comes up when I plug in my Zaurus.  When I plug in my zaurus Network 
Manager anoyingly changed over to the usb0 device and my internet 
connection stops working.

Is there a way to remove usb0 from showing in Network Manager or at 
least set it so that Network Manager never tries to use it as a default 
route to the internet?