Ping

The Ping test bounces a packet off a machine on the Internet and returns it to the sender. This test shows if the firewall is able to contact the remote host. If users on the LAN are having problems accessing services on the Internet, try pinging the DNS server, or another machine at the ISP location. If the test is unsuccessful, try pinging devices outside the ISP. If you can ping devices outside of the ISP, then the problem lies with the ISP connection.

1
Select Ping from the Diagnostic Tool menu.
2
Enter the IP address or host name of the target device and click Go.
3
In the Interface drop-down menu, select which WAN interface you want to test the ping from. Selecting ANY allows the appliance to choose among all interfaces—including those not listed in the drop-down menu. If the test is successful, the firewall returns a message, stating that the IP address is alive and showing the time to return in milliseconds (ms).

Ping for IPv6

For complete information on the SonicOS implementation of IPv6, see IPv6 . The ping tool includes a new Prefer IPv6 networking option.

When pinging a domain name, it uses the first IP address that is returned and shows the actual pinging address. If both an IPv4 and IPv6 address are returned, by default, the firewall pings the IPv4 address.

If the Prefer IPv6 networking option is enabled, the firewall will ping the IPv6 address.