Hello! One of my customers uses a Watchguard firewall which does a site to site VPN between 2 locations. We are trying to bond 2 DSL connections as they need better performance, but before ordering DSL we are using 2 LTE SIM cards instead with FusionHub hosted on DigitalOcean. A HD2 LTE-A is the device at the customer site. Outbound policy has the PepVPN connection first, and then each SIM/WAN next set as priority.
The PepVPN connection is created and works fine, and any outbound traffic shows that it’s coming from the DigitalOcean IP address as you’d expect. The customer needs to program that IP into their VPN as it will only allow connections from a specific IP. However, when they do this with the DigitalOcean IP their VPN will not establish.
He said they then reconfigured the VPN using one of the dynamic IP addresses on the LTE SIM cards and it established right away, but just using the 1 SIM card and not the VPN.
I have this issue all the time which is why I never use Peplink when a customer has an existing VPN, but is there anything else I can do? In FusionHub I set it to forward all WAN TCP and UDP to 192.168.50.100 being the customer’s router connected to LAN1 on the HD2 but not sure if I have to do anything else. I know there’s options like “send all traffic over VPN” etc, but anything else I can try? I’m not at the customer site and doing this remotely so any changes we make need to ideally allow me to keep connecting to the device.