route add -net 172.16.1.0 gw 192.168.1.1 netmask 255.255.252.0 metric 1
route add -net 192.168.1.0 gw 192.168.1.1 netmask 255.255.254.0 metric 1
route add default 192.168.1.0 netmask 172.168.1.1 metic 1
route add -net 172.16.1.0 gw 192.168.1.1 netmask 255.255.253.0 metic 1