How to install snmpwalk on Centos/Ubuntu?
snmpwalk is a SNMP application that uses SNMP GETNEXT requests to query a network entity for a tree of information. It is a great tool for Linux boxes. You can easily list all OIDs a SNMP host has to offer then filter the results to your needs and find OIDs to import into tools like Cacti.
How to install snmpwalk?
On Centos/RedHat machines you can install snmpwalk using yum
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yum install net–snmp–utils
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On Ubuntu install snmpwalk using apt-get
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apt–get install snmp
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How to use snmpwalk?
You can query snmp agent using snmpwalk , see the following example
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snmpwalk –v2c –c public 192.168.2.21
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Sample output is as shown in the image
If you know the OID , you can get it by specifying OID in the commandline as shown below
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snmpwalk –v2c –c SNMP_Community1 192.168.2.1 1.3.6.1.4.1.21067.2.1.2.4.2
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In the above command “1.3.6.1.4.1.21067.2.1.2.4.2” is the OID.