To override the global communication settings for a particular host, you can establish custom settings:
In the Explorer pane, expand the Elements root element > the top-level SNMP Integrator adapter element.
Right-click a host, then select Properties.
In the left pane, click Host/Device to open the Host/Device property page.
Click Protocol Settings.
Select the Use custom settings for this host device check box.
Specify the SNMP version, community string for the host, authentication and privacy protocols and passphrases.
Click Apply to save changes.