$ ip route
default via 10.51.99.33 dev rmnet_usb0 proto static metric 1024
10.51.99.33 dev rmnet_usb0 proto static scope link metric 1024
100.148.199.0/24 dev rmnet_usb0 proto kernel scope link src 10.51.99.34
But after this happens, "ip route" is completely blank and "ip a |grep UP" only shows lo.
Normally it looks like this:
$ ip route
default via 10.51.99.33 dev rmnet_usb0 proto static metric 1024
10.51.99.33 dev rmnet_usb0 proto static scope link metric 1024
100.148.199.0/24 dev rmnet_usb0 proto kernel scope link src 10.51.99.34
But after this happens, "ip route" is completely blank and "ip a |grep UP" only shows lo.