How to add a Ping Server on Fortigate

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Description	How to set up a ping server and dead gateway detection on a FortiGate unit.
Components	All FortiGate units.
Steps or Commands	Use a ping server in conjunction with dead gateway detection, and a redundant internet connection. If the primary connection fails, the redundant connection (for example a modem on a FortiGate-60M) replaces the down connection.The Ping Server automatically pings an IP address on the next hop router to verify when the connection is up and active again. The FortiGate unit will automatically switch back to the primary Internet connection. Adding a Ping server To add a ping server to an interface Go to System > Network > Interface. Choose an interface and select Edit. Set Ping Server to the IP address of the next hop router on the network connected to the interface. Select the Enable check box. Select OK to save the changes. Dead gateway detection The FortiGate unit uses dead gateway detection to ping the Ping Server IP address to make sure the FortiGate unit can connect to that IP address. Modify the dead gateway detection to control how the FortiGate unit confirms connectivity with a ping server added to an interface configuration. To modify dead gateway detection Go to System > Network > Options. For Detection Interval, type a number in seconds to specify how often the FortiGate unit tests the connection to the ping target. For Fail-over Detection, type a number of times the connection test fails before the FortiGate unit assumes the gateway is no longer functioning. Select Apply.

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