Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         5.26.121.245    0.0.0.0         UG    0      0        0 wwan0
5.26.121.240    *               255.255.255.248 U     0      0        0 wwan0
192.168.1.0     *               255.255.255.0   U     0      0        0 eth0
192.168.4.0     *               255.255.255.0   U     0      0        0 usb0