Defining A Ping Server; Dead Gateway Detection - Fortinet FortiGate FortiGate-50A Installation Manual

Configuring the modem interface

Defining a Ping Server

Dead gateway detection

FortiGate-50A Installation Guide
A green check mark indicates the active dialup account.
The IP address and netmask assigned to the modem interface appears on the System
Network Interface page of the web-based manager.
To disconnect the modem
Use the following procedure to disconnect the modem from a dialup account.
1 Go to System > Network > Modem.
2 Select Hang Up if you want to disconnect from the dialup account.
Adding a ping server is required for routing failover for the modem in redundant mode.
A ping server confirms the connectivity to an ethernet interface.
To add a ping server to an interface
1 Go to System > Network > Interface.
2 Choose an interface and select Edit.
3 Set Ping Server to the IP address of the next hop router on the network connected to
the interface.
4 Select the Enable check box.
5 Select OK to save the changes.
The FortiGate unit uses dead gateway detection to ping the Ping Server IP address to
make sure that the FortiGate unit can connect to this IP address.
Modify dead gateway detection to control how the FortiGate unit confirms connectivity
with a ping server added to an interface configuration. For information about adding a
ping server to an interface, above.
To modify the dead gateway detection settings
1 Go to System > Config > Options.
2 For Detection Interval, type a number in seconds to specify how often the FortiGate
unit tests the connection to the ping target.
3 For Fail-over Detection, type a number of times that the connection test fails before
the FortiGate unit assumes that the gateway is no longer functioning.
4 Select Apply.
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Defining a Ping Server
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