This article explains how to get a list of devices not polled by SNMP for troubleshooting purposes.
Some network devices may not be polled by the Network Flow Analysis due to firewall or ACL restrictions.
NFA any version.
RDP to the NFA Console and issue the command below from the Windows prompt:
mysql reporter -t -e "select inet_ntoa(routeraddress) from routers where profileid=0;" > no_snmp_devices.txt
The file no_snmp_devices.txt will have a list of all devices which NFA could not SNMP poll. If that is the case, please check the SNMP profile to confirm whether the SNMP community string matches the one configured in the device and check firewall/ACL configuration that may be blocking SNMP traffic from the NFA Harvester to the network device.
SNMP device polling will not work on newly installed RedHat NFA Harvester
Add SNMP Profiles
Unable to open SNMP profiles link in NFA due to 'HTTP Error 404.3 - Not Found'