Query SNMP Hosts using MIBs

Video Lecture

Querying SNMP agents with MIB descriptions is likely to fail by default when queried via a Zabbix server SNMP agent item.

It will also fail when trying from the command line using the snmpget command,

1	`snmpget -v2c -cmycommunity grafana.seanwasere.com IF-MIB::ifInOctets.1`

1 2	`--> Cannot find module (IF-MIB) --> IF_MIB::ifInOctets.1: Unknown Object Identifier`

We can enable querying by MIB descriptions by running this command on the Zabbix server itself.

1	`sudo apt install snmp-mibs-downloader`

Now this command will work

1	`snmpwalk -v 2c -c mycommunity grafana.seanwasere.com IF-MIB::ifInOctets.1`

1	`--> IF-MIB::ifInOctets.1 = Counter32: 566637161`

I then restart the Zabbix server process.

1	`sudo service zabbix-server restart`

and update my items for the host in Zabbix, to query using MIB descriptions instead of OIDs.

OID inOctets for interface 1 = IF-MIB::ifInOctets.1 (oid = 1.3.6.1.2.1.2.2.1.10.1)

OID outOctets for interface 1 = IF-MIB::ifOutOctets.1 (oid = 1.3.6.1.2.1.2.2.1.16.1)