A Management Information Base (MIB) describes a set of SNMP variables. It allows you to customize the server database to a particular device like network switch or programmable controller. The server includes a pre-built database with the RMON Remote Network Monitoring MIB for simple administration of networked devices, plus a collection of MIB files that might be useful for inspecting your devices.

You can initiate it in the menu Edit, then Manage Database(MIB).

MIB Database Management Screen

In the left of the dialog, a folder navigation box will help you to navigate between all SNMP OID. When an item is selected its properties is show in the MIB Details at the right of the dialog. This tab shows the above attributes of the selected entry:

SNMP OID: Object identifier for the management object.

Name: Management object name.

Description: Detailed description of the management object.

Using the toolbar at the bottom, you can:

Add Entry: Lets you manually add a SNMP variable.

Import MIB File: Imports SNMP variable definitions from a MIB file. SNMP Server comes with a collection of useful MIB files. You might also want to import MIB files supplied by your devices' vendors.

Load Database: Loads a previously saved database from a file.

Save Database: Saves the current database to a disk file.

To edit the data, just double-click the desired cell and type the new data and then click on "Apply". To discard this change, click on "discard". If you want to insert a new entry, click on "Add Entry", insert all data and then click on "Create". After editing or adding new entries to the table, just click the OK button to close the MIB Database dialog and update the server entries. If you want to discard all changes, just click the Cancel button to close the dialog.