I have this configuration: Zyxel 643(172.16.0.1)----PCÂ´s (172.16.x.x) | | WRT54gs(hyperwrt, WAN 172.16.0.2, LAN 192.168.1.1) | | PC`s(192.168.1.x) I need to route the PC's(172.16.x.x) petitions into the WRT54gs LAN (192.168.1.x). The problem is that I can not ping from the WAN WRT54gs port area to the LAN PCÂ´s. I know there must be a solution (iptables or something). If you have already solved a problem like this one please let me know how. Thanks!!!