Press and hold the Ctrl key and click on Wireless Network Connection to select it. Click on Local Area Connection to select it. netstat and ip will be your friends here. The Ethernet connection is called Local Area Connection and the wireless connection is called Wireless Network Connection.
You might need to muck around with the ordering of the interfaces to make it work. Lets say traffic destined for a couple of ethernet internal subnets - all 10.0.0.0/8 addresses (and for some strange reason) 149.9.1.0/24 should go via ethernet and everything else can go to wifiĭisclaimer - I dont have an ubuntu vm handy to test, these are the commands I use on a Mac to do the same thing $ route add 10.0.0.0/8 10.1.1.1 Wifi gateway is 192.168.0.1 and the ethernet gateway is 10.1.1.1 To explain the comment here a little more, basically what you need to do is