Before connecting to Ethernet router:

$ route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.2.254   0.0.0.0         UG    0      0        0 wlan0
10.0.0.1        0.0.0.0         255.255.255.255 UH    0      0        0 tun0
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 wlan0
172.17.0.0      0.0.0.0         255.255.0.0     U     0      0        0 docker0
192.168.2.0     0.0.0.0         255.255.255.0   U     2      0        0 wlan0


After connecting to Ethernet router:

$ route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.1.254   0.0.0.0         UG    0      0        0 eth0
10.0.0.1        0.0.0.0         255.255.255.255 UH    0      0        0 tun0
169.254.0.0     0.0.0.0         255.255.0.0     U     1000   0        0 wlan0
172.17.0.0      0.0.0.0         255.255.0.0     U     0      0        0 docker0
192.168.1.0     0.0.0.0         255.255.255.0   U     1      0        0 eth0
192.168.2.0     0.0.0.0         255.255.255.0   U     2      0        0 wlan0