Obsolete.
OpenVPN in Gentoo
Kernel conf
Network Device Support: -> Universal TUN/TAP Driver
either ass module (tun.o) or compiled in, as you wish.
echo tun >> /etc/modules.autoload.d/kernel-2.6
all files must reside in /etc/openvpn/*/
where * is a "config name" like my-vpn
/etc/openvpn/my-vpn/ -> certs -> bin local.conf
local.conf is the usual openvpn.conf
don't forget to check if tun.o is loaded automatically... also /dev/net/tun must exist the route command is different on Linux:
route add -net $NET netmask $MASK gw $GW
localhost wiki