An interesting tool to check for connections with SNMP servers and obtain the value of the SNMP variable is snmp-get, which is available for both Windows and Unix environments: https://snmpsoft.com/shell-tools/snmp-get/.

Other tools, such as snmpwalk (available at https://snmpsoft.com/shell-tools/snmp-walk/), allow us to obtain information about SNMP servers.

This is the syntax you can use to request information about a specific host:

snmpwalk -c:community -v:2c -r:host -os:[oid]

In the following screenshot, we can see the usage for the snmpwalk command:

At http://snmplabs.com/snmpsim/public-snmp-agent-simulator.html#examples, you can see some examples of executing the snmpalk command using the SNMP simulation service at demo.snmplabs.com.