Enabling ScreenOS Devices for Interface Monitoring
You can enable the security device to monitor the reachability of certain IP addresses through the interface to determine interface failure. For each IP address to be tracked, specify the following:
- Interval at which pings are sent to the tracked address
- Number of consecutive unsuccessful ping attempts before the connection to the address is considered failed
- Weight of the failed IP connection
- Timeout for the track IP
The Failover Threshold is compared to the sum of the weights of failed IP connections. Instead of tracking specific IP addresses, you can alternatively set the device to track the interface’s default gateway.