I finally figured this out thanks to some helpful souls in #Netfilter. I wrote about the full process to configuring this over here: http://wiki.alpinelinux.org/wiki/Linux_Router_with_VPN_on_a_Raspberry_Pi#VPN_Tunnel_on_specific_subnet -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
