I have a D-Link DIR-655 Wireless-N Router connected to my Cable Modem. I would like to have the RVS4000 behind it, as the DIR-655 has some better features for managing my internal network. I want to forward my external VPN to the RVS4000. I'm confused on what needs to be set up for the LAN IP and WAN IP. My DIR-655 does not let me forward to an IP outside of the subnet. I'm assuming my LAN IP is my internal LAN subnet. If my DIR-655 already has an external IP, what should the WAN IP be set to? If I set the WAN IP on the RVS4000 to that of one of my internal subnet it says it cannot be.
Appreciate any help on this.