I can't configure my tablet's usb to ethernet ip setting manually I have lenovo A3300-GV tablet which have usb ethernet support. I use micro usb to ethernet adapter and it work fine with my router. where my internet provided by local cable operator ISP Siti broadband or aliance. IP address, subnet mask, default gatewaw, DNS must set to pc ethernet IPv4 property or in router. But when I directly connect it to my tab via usb ethernet I can' configure manually and internet not working. My device rooted but no application before root or after rooted work. Android verson 4.4.2
To display Ethernet settings in Android parameters you can edit build.prop file and search for "ethernet" word. On my Haier E701 Tablet, I've found the line:

ro.rk.ethernet_enable=false 


I've replaced the "false" value by "true" and Ethernet settings are displayed.