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Paessler MIB Importer and Converter

Monitoring SNMP Devices Using
Vendor Supplied MIB Data Files

With this freeware tool you can import MIB (Management Information Base)
files and convert them into OID libraries for PRTG.


Please download the current version of the MIB Importer (for PRTG 12 or Later) to get the latest features. For former PRTG versions we provide legacy downloads. Please uninstall previous versions before you install a new one. Any feedback is welcome!

Legacy Versions (for Older PRTG Versions)

Download the MIB Importer for versions previous to PRTG 12 below. Please note that we do not provide support for these legacy versions!

Import of SNMP-MIB files into Paessler Monitoring Applications

Many network devices and programs come with so-called MIB files that describe the parameters and readings which are available for monitoring via SNMP. With MIB Importer you can import these MIB files (supplied by the vendor of your devices) and convert them into OID libraries for PRTG Network Monitor. Then you can easily setup SNMP Library sensors using the new OIDlib files.

A few words about MIB files

MIB files are hardware and operating system independent information files that tell network manangement systems how to retrieve in-depth data using the SNMP protocol from network devices like routers, switches, network printers, disk arrays (even air conditioners) as well as many server software products (database servers etc.). MIB files describe the available readings in tables, values, registers using a special text format (Abstract Syntax Notation One ASN.1).

Because MIB files are written in this highly abstract definition language, they need to be translated into a more software compliant form so that PRTG can work fast and seamless with the data. This is the task of the MIB-Importer which translates MIB files into Paessler's XML-based OID-Library format.

MIB files are usually provided by the manufacturers of network devices and services (e.g. Cisco MIBs can be found here). Please visit your vendor's website or contact their support to get the MIB file for your specific device.



This program is provided as a freeware and thus for free for Paessler customers, mainly as an add-on for PRTG. Please understand that we cannot provide deep support for this program.


  • V3.5.6 Maintenance release (November 17th 2016)
    • In rare cases, "TEXTUAL-CONVENTION" types in MIB files could not be transformed to PRTG lookups. We have fixed this issue.
    • The MIB Importer and MIB Splitter executables are now signed to confirm their integrity.
  • V3.5.5 (September 27th 2016): The installer is now signed to confirm its integrity, so you can be sure that it really comes from us, the Paessler AG.
  • V3.5.5 (September 19th 2016): You can now create negative lookups with the MIB Importer.
  • V3.5.4 (July 22nd 2016): PRTG "lookups" can now be generated from "TEXTUAL-CONVENTION" types in your MIB files.
  • V3.5.3 Maintenance release (May 10th 2016)
    • Tables are now sorted by OID
    • Minor fixes
  • V3.5.2 Maintenance release (May 4th 2016)
  • V3.4.8 Alpha update (January 17th 2014)
    • Enhanced compatibility
  • V3.4.7 Alpha update (September 13th 2013)
    • Enhanced compatibility
  • V3.4.6 Alpha update (March 12th 2013)
    • Enhanced compatibility
  • V3.4.5 Alpha update (March 8th 2013)
    • Fixed support for Lookup definitions
  • V3.0 Alpha (February 5th 2013)
    • Alpha version with enhanced MIB support
  • V2.1 (March 23rd 2009)
    • New: Added partial selection of OIDs and saving them into a new OIDLIB (saves only a subset of available OIDs into an oidlib file, useful for large MIBs with many OIDs)
    • New: Added"find previous" when searching for strings in the OIDs
  • V2.0.3 (January 13th 2009)
    • Improved MIB parsing
  • V2.0 (November 12th 2008)
    • Added support for PRTG Nework Monitor 7
    • Improved MIB parsing
    • V1.3b (August 1st 2007)
      • Improved MIB parsing
    • V1.2 (April 24th 2007)
      • Improved MIB parsing
    • V1.1 (January 24th 2007)
      • Improved MIB parsing
    • V1.0 (November 29th 2006)
      • Release version
    • V1.0 Beta 1 (November 23rd 2006)
      • Updated MIB parser
      • Download includes a preselected set of base MIB files
    • V0.3 Alpha (May 19th 2006):
      • Further improved MIB Parsing
    • V0.2 Alpha (Feb 27th 2006):
      • Improved MIB compiler
      • MIB Compiler shows error messages with line of source code
    • V0.1 Alpha (Feb 16th 2006):
      • Initial Alpha Release
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