Ping & traceroute

Troubleshooting : Tools : Ping & traceroute

Ping & traceroute

If your FortiADC appliance cannot connect to other hosts, try using ICMP (ping and traceroute) to determine if the host is reachable or to locate the node of your network at which connectivity fails, such as when static routes are incorrectly configured. You can do this from the FortiADC appliance using CLI commands.

For example, you might use ping to determine that 172.16.1.10 is reachable:

execute ping 172.16.1.10

PING 172.16.1.10 (172.16.1.10): 56 data bytes

64 bytes from 172.16.1.10: icmp_seq=0 ttl=64 time=2.4 ms

64 bytes from 172.16.1.10: icmp_seq=1 ttl=64 time=1.4 ms

64 bytes from 172.16.1.10: icmp_seq=2 ttl=64 time=1.4 ms

64 bytes from 172.16.1.10: icmp_seq=3 ttl=64 time=0.8 ms

64 bytes from 172.16.1.10: icmp_seq=4 ttl=64 time=1.4 ms

--- 172.20.120.167 ping statistics ---

5 packets transmitted, 5 packets received, 0% packet loss

round-trip min/avg/max = 0.8/1.4/2.4 ms

or that 192.168.1.10 is not reachable:

execute ping 192.168.1.10

PING 192.168.1.10 (192.168.1.10): 56 data bytes

Timeout ...

--- 192.168.1.10 ping statistics ---

5 packets transmitted, 0 packets received, 100% packet loss

Similar displays occur when using the IPv6 versions of the tools:

execute ping6 2607:f0b0:f:420::

PING 2607:f0b0:f:420:: (2607:f0b0:f:420::): 56 data bytes

--- 2607:f0b0:f:420:: ping statistics ---

5 packets transmitted, 0 packets received, 100% packet loss

If the host is not reachable, you can use traceroute to determine the router hop or host at which the connection fails:

execute traceroute 192.168.1.10

traceroute to 192.168.1.10 (192.168.1.10), 32 hops max, 72 byte packets

1 192.168.1.2 2 ms 0 ms 1 ms

2 * * *

For more information on troubleshooting connectivity, see “Connectivity issues”.


	Both ping and traceroute require that network nodes respond to ICMP. If you have disabled responses to ICMP on your network, hosts may appear to be unreachable to ping and traceroute, even if connections using other protocols such as HTTP can succeed.