VPN Connention between two networks with same CIDR?

  • Hello All,
              I am having some trouble with a VPN Connection between to sites that have the same IP Ranges (192.168.0.x). I am really, really new to this sort of thing and was hoping someone could point me in the right direction…

    Unfortunately we have rather critical software running at both sites that is tied to their IP addresses so we cannot change the CIDR ranges.

    We have pfsense routers with internet connections running at both sites, one with a static IP address and the other has a dynamic address.

    Any help would be greatly appreciated, thank you in advance.

    Kind regards,

  • One solution would probably involve having the VPN endpoints on a distinct IP subnet, using NAT on both VPN endpoints and possibly port forwarding depending on how much of each local network you want to expose to the other end of the VPN (e.g. you want each local network to be able to access just a web server on the other network vs each local network has to be able to access all machines on the other local network).