With SNMP, communities are used to establish trust and security between managers and agents. Each agent is configured with three community names: read-only, read-write, and trap. The community names are the passwords that you use to access your account and that represent primary types of activity:
read-only: This community string only allows data values to be read. There is no modification of any kind. This is the only community string used by the SNMP Integrator adapter.
read-write: This community string allows both the reading and writing of data values. This means that values can be reset, interfaces can be reset, and changes can be made to a device’s configuration.
trap: This community string allows you to receive asynchronous notifications from an agent.
To change the community for a host or device:
In the pane, expand the root element.
Right-click the top-level element, then select to open the Status property page.
In the left pane, click to open the Hosts/Devices property page.
Select the host, then click .
Specify your password in the prompt dialog box.