Peplink with 4 WAN what should I make as outgoing interface in Fortigate firewall

[MarceloBarros]

Hello…
Are you trying to use drop-in?

What is Drop-In Mode?

Drop-in Mode allows the Peplink Balance to be deployed in a network without making any changes to your existing network devices. This feature simplifies the installation by allowing the Balance to transparently and seamlessly work with your routers and firewalls. Let’s take a closer look at the overall picture of the process before installing the Balance. Suppose your existing network looks similar to this diagram. [image] In this example the default gateway router is connected to the ISP.…