Setup IP address manyally, e.g. setup IP address as 192.168.35.100

sudo ifconfig usb0 192.168.35.100 up

You also need to setup the IP address on your PC, e.g. 192.168.35.110

Check network connection:

khadas@Khadas:~$ ping -I usb0 192.168.35.110
PING 192.168.35.110 (192.168.35.110) from 192.168.35.100 usb0: 56(84) bytes of data.
64 bytes from 192.168.35.110: icmp_seq=1 ttl=64 time=1.19 ms
64 bytes from 192.168.35.110: icmp_seq=2 ttl=64 time=1.33 ms
64 bytes from 192.168.35.110: icmp_seq=3 ttl=64 time=1.21 ms
64 bytes from 192.168.35.110: icmp_seq=4 ttl=64 time=1.22 ms
64 bytes from 192.168.35.110: icmp_seq=5 ttl=64 time=1.28 ms
^C
--- 192.168.35.110 ping statistics ---
5 packets transmitted, 5 received, 0% packet loss, time 4007ms
rtt min/avg/max/mdev = 1.193/1.245/1.328/0.050 ms

Try to access the devices via adb.

$ adb devices
* daemon not running; starting now at tcp:5037
* daemon started successfully
List of devices attached
37304e424e50	device
 
$ adb shell
# 
# 
# ls
bin   dev      etc   lib    mnt  proc  run   srv  tmp	   usr	zImage
boot  dtb.img  home  media  opt  root  sbin  sys  uInitrd  var
#