Import MIB Definitions
- Last Updated: April 2, 2026
- 3 minute read
- WhatsUp Gold
- Version 2026
WhatsUp Gold enables you to import additional MIB definitions to its local collection. Leverage these trees when querying and browsing MIBs on monitored devices.
The local store/MIB manager provides:
- A visual aid and browsable reference of the MIB objects and types used by various vendors and OSI layers.
- A helpful reference for cases where proprietary MIB extensions (or similar) are defined at the target device.
- A way to validate ASN1.
Program Files
(x86)\Ipswitch\WhatsUp\Data\Mibs.Import a MIB file
To import a MIB file:
- Select System Settings > SNMP MIB Manager from the SETTINGS menu to launch the SNMP MIB Manager interface.
- Click the Add icon to launch the Import a MIB File dialog.
- Click Choose File.
- Browse to the location where the MIB file to be uploaded currently resides, select the MIB file, then click Open to return to the Import a MIB File dialog. Ensure the file you have chosen is less than 8 MB and has a supported file extension (.txt, .mib, .my, or .zip).
Import multiple MIB files at once
Progress has enhanced WhatsUp Gold to allow multiple files to be uploaded at once making it more convenient to manage batches of data/multiple MIB files that need to be processed together. The procedure for uploading mulitple individual MIB files is similar as described previously, with Step 4 being the only exception:
- Select System Settings > SNMP MIB Manager from the SETTINGS menu to launch the SNMP MIB Manager interface.
- Click the Add icon to launch the Import a MIB File dialog.
- Click Choose File.
- Browse to the location where the MIB files to be uploaded currently reside, select the MIB files to be uploaded by holding down the Ctrl key (for Windows) or Command (for Mac) while clicking the applicable filenames, then click Open to return to the Import a MIB File dialog. Please note, you also have the option to select a single compressed (.zip) folder containing multiple MIB files for upload. Ensure the total size of the files or the compressed folder being uploaded is less than 25 MB.
After the upload process has completed, a summary dialog appears providing a status for each of the selected files including indications of success, failure, or duplicates. If a MIB file selected for upload is a duplicate of one that already exists in WhatsUp Gold, the user is prompted to either Replace or Ignore it.
Additional Information
Once a MIB file has been uploaded to WhatsUp Gold, it will be displayed in the SNMP MIB Manager interface with one of three states:
- Success. A MIB displayed with a green checkmark was uploaded successfully and no further action is needed.
- Warning. A MIB displayed with a yellow exclamation point was was uploaded successfully, but has a potential problem.
- Error. A MIB displayed with a red exclamation point was was uploaded successfully, but contains an error.

Select any MIB shown, then click the View icon to launch a dialog presenting the contents of the MIB as well as the following details:
- MIB Module
- File Name
- Status
- Information specific to the error or warning (if present)

Handling MIB Syntax or Dependency Errors
There are two main errors that can occur when uploading MIB files into WhatsUp Gold using the MIB Manager:
- Dependency errors. Dependency errors are the most common and occur when a module's syntax compiles but cannot link with another MIB table that the new/modified MIB module requires.
- Syntax errors. Syntax occurs when the ASN2 syntax (the source code grammar used for MIB tables) is not valid.