SNMP don't response traffic

[HungDT]

Hi Everyone,

I have the problem with configure SNMP. I use a pair fortigates model: 201F, version 7.2.7. I config HA mode Active-Passive. So I want to monitor 2 fortigates, I have enable snmp agent and config community snmp v2, config interface administrator access service: snmp, ping, https. Test ping from NMS to Fortigate is successful but when NMS send SNMP get but not receive response packet from Fortigate. Can you help me ? Thanks a lot.

local traffic

[ozkanaltas]

Hello @HungDT ,

 Do you have a trusted host configuration on your admin users?

If you say yes, can you add the IP address of the nms tool to the trusted host configuration? It doesn't matter which administrator account you configure. You can configure it to anyone.

[HungDT]

Hi @ozkanaltas,

it means restric login to trusted hosts on Administrators.

[ozkanaltas]

Hi @HungDT ,

If you don't have a trusted host configuration on your admin accounts, you don't need to configure it. This is only valid for those with a trusted host configuration.

Can you run these debug commands via CLI? While running these commands can you poll your device from the NMS tool? After running these commands can you collect output and share it with us? 

diag debug application snmp -1
diag debug enable

However, if you have not configured SNMP Agent settings within the SNMP configuration, Fortigate may not respond to snmp queries.

[HungDT]

Hi @ozkanaltas 

I send you the picture, it shows updating cached loops.

[funkylicious]

Can you please post the output of the commands,

show system snmp community

show system snmp sysinfo

[HungDT]

i send you picture

[ozkanaltas]

Hi @HungDT ,

Can you try to configure SNMP Agent information like that or real information? 

[HungDT]

Hi @ozkanaltas ,

 I tried it but it doesn't work. 

[funkylicious]

are you trying to query a HA dedicated management port ?

if so, please take a look at this, https://community.fortinet.com/t5/FortiGate/Troubleshooting-Tip-SNMP-walk-getting-failed-when-using-...