route delete 0.0.0.0
route add 0.0.0.0 mask 0.0.0.0 192.168.1.1 metric 1
route change 0.0.0.0 mask 0.0.0.0 192.168.1.1 metric 1
route delete 0.0.0.0
route add 0.0.0.0 mask 0.0.0.0 192.168.1.1 metric 1
route change 0.0.0.0 mask 0.0.0.0 192.168.1.1 metric 1