Configuring Network Failure Detection

 11. Use the Network Detection page to configure network failure detection.

 • Retry Count: Enter the number of retries. The security appliance repeatedly tries to connect to the ISP after the network failure is detected.

 • Retry Timeout: Enter the interval value between two detection packets (Ping or DNS detection).

 • Ping Detection-Ping using WAN Default Gateway: If you choose this option, ping the IP address of the default WAN gateway. If the default WAN gateway can be detected, the network connection is active.

 • DNS Detection-DNS lookup using WAN DNS Servers: If you choose this option, the security appliance sends the DNS query for www.cisco.com to the default WAN DNS server. If the DNS server can be detected, the network connection is active.

 12. After you are finished, click Next.