Getting session get request failed wherease snmpwalk command is working fine.

Hi,

I am facing a strange problem. If I run the snmpwalk command against the fortinet firwall(300c) with Firmware Version 5.2.1 I am able to get the values but I am getting “session get request failed” when I try to run this plugin. I have rechecked SNMP is configured properly on the Fortigate firewall.

What could be the reason for this issue. I am running Nagios 3.5.x on Centos 7 64-bit Os.

snmpwalk -c SNMP-TESTs -v 2c 172.31.5.6
SNMPv2-MIB::sysDescr.0 = STRING: trafic
sysObjectID.0 = OID: fgt300C
SNMPv2-MIB::sysContact.0 = STRING: [email protected]
SNMPv2-MIB::sysName.0 = STRING: [email protected]
SNMPv2-MIB::sysLocation.0 = STRING: xxxxxx
SNMPv2-MIB::sysServices.0 = INTEGER: 78
SNMPv2-MIB::sysORLastChange.0 = Timeticks: (0) 0:00:00.00

Firmware Version
fgSysVersion.0 = STRING: v5.2.1,build0618,140915 (GA)

./check_fortigate.pl -C SNMP -v 2c -H 172.31.5.6
UNKNOWN: session get request failed

Thanks & Regards

Ankush Grover