# Pastebin d9OSgNzk
## starting a VPN:
# create interface
ifconfig tun/0 up
# start VPN and connect (config file should mention tun/0)
openvpn --config <CONFIG FILE>

## then:
# add static route for VPN traffic (needs to go over existing connection)
route add /dev/net/<NIC>/0 <VPN SERVER IP> gw <CURRENT GATEWAY IP>
# delete the existing default gateway
route del /dev/net/<NIC>/0 default gw <CURRENT GATEWAY IP>
# add the VPN gateway as default; all traffic should now go over VPN
route add tun/0 inet default gw <VPN GATEWAY IP>