openvpn-client-config

client
dev tap
proto tcp
remote <server>  <port>
resolv-retry infinite
nobind
persist-key
persist-tun
ca ./ca.crt
cert ./client.crt
key ./client.key
cipher AES-128-CBC
comp-lzo
verb 5
script-security 2
up ./dhcp-client-request.sh



====== dhcp-client-request.sh =====
#!/bin/bash

/usr/sbin/ipconfig set tap0 dhcp