Thanks to I'm now connected to the web 6.0. Setting up the tunnel on the server machine was easy thanks to aiccu, only the openvpn routes for my other machines was a bit more tricky. (Openvpn doesn't support "mode server" for ipv6 yet.)

On a sidenote, freewrt is much nicer to use on my Asus WL500gp than openwrt - feels much more like Linux (even Debian) than the nvram stuff on openwrt.