# MIB Browser: Overview

The MIB Browser tool is a complete SNMP MIB Browser that enables loading and browsing MIBs and allows you to perform all SNMP-related operations. You can also view and operate on the data available through the SNMP agent running on a managed device.

[![Mib browser in OpManager: Video](https://www.manageengine.com/network-configuration-manager/images/video_icn.png)](https://www.youtube-nocookie.com/embed/M6wgVOSGIP8)

![MIB browser in OpManager: Browser details](https://www.manageengine.com/network-monitoring/help/images/mib-browser.PNG)

## How to access the MIB browser?

The MIB Browser in OpManager can be accessed either via OpManager UI, or by launching it using the command prompt.

- To access the mib browser via UI, Navigate to **Settings → Tools → MIB Browser** in OpManager. The **MIB Browser interface** will open.
- The default MIBs available in OpManager are displayed in the left-hand side panel. These MIBs contain predefined OIDs that can be used to query device data.
- To load custom MIB files, click **Browse** on the left panel and upload the MIB file.
- The following file formats are supported: **.mib, .txt, .my, .mi2**.
- Once uploaded, the new MIB nodes will appear in the **MIB tree** on the left panel.

![Mib browser in OpManager: Overview](https://www.manageengine.com/network-monitoring/help/images/mib-browser.PNG)

### Retrieve data from a device

To query SNMP data using a specific OID:

- Enter the **Device IP address** or **Host Name**.
- Provide the **SNMP credentials** (community string or SNMP v2/v3 details).
- From the **MIB tree** on the left, select the required **MIB node / OID**.
- Click **Get**. OpManager will fetch and display the OID value returned by the device.
- Click **Get Next** to retrieve the value of the next OID in the MIB hierarchy. Repeat this action to fetch subsequent OID values sequentially.

![Mib browser in OpManager: Overview](https://www.manageengine.com/network-monitoring/help/images/mib-browser-1.png)

### View table-based SNMP data

Some MIB objects return tabular data. To view them:

- Select a **table node** from the **MIB tree**.
- Click **Table**.

The data will be displayed in table format, showing all indexed entries.

### Using the MIB browser via Command Line

You can also launch the MIB Browser using the command line.

- Open **Command Prompt** as Admin.
- Navigate to the **<opmanagerhome>\bin** and execute the following bat file: **MibBrowser.bat**

This will open the **MIB Browser window**, where you can use it the same way as the UI version.

#### The features of MIB Browser include the following:

- Saving the MIB Browser settings.
- Loading and viewing MIB modules in a MIB tree.
- Traversing the MIB tree to view the definitions of each node for a particular object defined in the MIB.
- Performing the basic SNMP operations, such as GET, GETNEXT, GETBULK, and SET.
- Support for multi-varbind requests. This feature is available only in the Java client.
- Real-time plotting of SNMP data in a graph. Line graph and bar graph are the two types of graphs that are currently supported. This feature is available only in the Java client.
- Table-view of SNMP data. This feature is available only in the Java client.
- Enables loading of MIBs at startup. This feature is available only in the Java client.