I have two sites that I would like to connect together via VPN connections.
Each site has a cisco rv082 router.
At the first site, it should be very straightforward, the WAN IP of the router is the same as the external/public IP, and the internal LAN network range is 192.168.1.X
At the second site, the router sits behind a home modem from an ISP, and so the home modem has the public IP, the router has a different wan IP, in this case 192.168.0.2 and the LAN network range is 192.168.2.X.
So I'm not sure how to proceed with the setup since the second site has different WAN/public IPs for the router interface. Do I need to setup a 1 to 1 NAT to map the router's WAN IP to the modems public IP?
FYI, I found out that the reason the second site has a different WAN IP from the public is that its got a DMZ setup. I believe there is a setting on the modem that should allow that to pass through, so maybe this will be straightforward, i.e. normal VPN setup.