ifconfig-push 172.30.0.210 255.255.255.240
iroute 192.168.0.0 255.255.0.0
iroute 172.16.0.0 255.255.240.0
push "route 172.30.0.0 255.255.255.192"
push "route 172.31.0.0 255.255.255.224"