Created on 05-29-2011 11:24 PM
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Use dead gateway detection and e-mail alerts Another tool available to you on FortiGate units is the dead gateway detection. This feature allows the FortiGate unit to ping a gateway at regular intervals to ensure it is online and working. When the gateway is not accessible, that interface is marked as down. To detect possible routing loops with dead gateway detection and e-mail alerts 1 To configure dead gateway detection, go to System > Network > Options . 2 Set the detection interval (how often to send a ping), and fail-over detection (how many lost pings before bringing the interface down). A smaller interval and smaller number of lost pings will result in faster detection, but will create more traffic on your network. 3 To configure interface status change notification, go to Log&Report >Log Config > Alert E-mail. 4 After you enter your email details, select the events you want to be alerted about — in our case Configuration changes. You may also want to log CPU and Memory usage as a network outage will cause your CPU activity to spike. After this configuration, when this interface on the FortiGate unit cannot connect to the next router, the FortiGate unit will bring down the interface and alert you with an email to the outage.from the FortiOS Handbook v4.00MR2, pg. 1322
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