no ping to some ip

Forum|Forum|11 years ago
May 7, 2015
2 replies
14404 views

hello

i have strange problem.

i have fortigate 60. the problem is i can't ping from CLI console some IP addreses.

for example, i have server with ip 192.168.1.15

ping to this address gives 100% packet loss

if i change ip of the server to 192.168.1.5 the ping working fine.

i can't find anything blocking addresses 192.168.1.11-192.168.1.20

anyone have idea why is it?

thanks.

Best answer by jintrah_FTNT

Hi,

Is there some device in between the server and FortiGate? A good idea would be to check if the FortiGate has learned the mac address of server in the arp table

#get sys arp

Also see if there is a specific route for destination 192.168.1.15 in the routing table

#get router info routing-table all

Next, sniff on the interface connecting to FortiGate for packets send to server

#diagnose sniffer packet <interface name> 'host 192.168.1.15' 4

Ping to the server from another CLI , and check the packets captured

Regards

jintrah_FTNTAnswer

Staff

Hi,

Is there some device in between the server and FortiGate? A good idea would be to check if the FortiGate has learned the mac address of server in the arp table

#get sys arp

Also see if there is a specific route for destination 192.168.1.15 in the routing table

#get router info routing-table all

Next, sniff on the interface connecting to FortiGate for packets send to server

#diagnose sniffer packet <interface name> 'host 192.168.1.15' 4

Ping to the server from another CLI , and check the packets captured

Regards

slava_diAuthor

New Member

it working know

i had ssl vpn configurated for this addreses.

thank you!

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