MIB browser: Read and analyze
MIB files with PRTG


  • Free MIB Browser and MIB Importer
  • Import and convert MIB files
  • Select all or individual OIDs
  • PRTG uses SNMP for its monitoring

Five steps for analyzing MIBs and OIDs

Download PRTG

Download PRTG

Download the free Paessler MIB Importer

Download the free Paessler MIB Importer

Open MIB files

Open MIB files

MIB files or partial selections into .oidlib files

Set up PRTG sensors

Set up PRTG sensors

The ideal MIB importer
for PRTG

  • Free Paessler AG add-on
  • MIB Browser and MIB Importer
  • MIB to OID Converter



  • A comprehensive network monitoring tool
  • PRTG monitors hardware, traffic, and applications
  • PRTG uses SNMP, WMI, and performance counters

PRTG at a glance

PRTG sensors:

How many OIDs do you want to read?


iWhat is a sensor?

In PRTG, “Sensors” are the basic monitoring elements. One sensor usually monitors one measured value in your network, e.g. the traffic of a switch port, the CPU load of a server, the free space of a disk drive. On average you need about 5-10 sensors per device or one sensor per switch port.

View video (3:26 min.)


Network monitoring: PRTG is...





















With PRTG, you can monitor your entire network. Servers, routers, switches, traffic, cloud applications... PRTG lets you keep an eye on everything.



200+ preconfigured sensors help you to quickly set up your network monitoring. You can switch from another tool such as Nagios with little to no effort at all.



PRTG is all-inclusive. Upon purchasing a license, you’ll get access to all PRTG features, including the alarm system, technical support, and the full range of sensors.



PRTG is used by more than 200,000 administrators worldwide, all industries included. Even system administrators in charge of critical and highly-sensitive IT infrastructures put their trust in PRTG. A few case studies



Feel free to customize your PRTG environment – in accordance with the number of sensors you need. The first 100 sensors are free and never expire. You can therefore get a feel for PRTG with no pressure whatsoever.


Tutorial: Opening an MIB file



MIB file on the website of the manufacturer of your network device


Search for the MIB file on the website of the manufacturer of your network device (router, switch, server).


Download and install the Paessler MIB Importer.


Download and install the Paessler MIB Importer.


Launch the program


Launch the program.


menu item “File | Import MIB File…” to load and convert the MIB file


Choose the menu item “File | Import MIB File…” to load and convert the MIB file.


You may encounter an error during the import, in which case you will have to edit the MIB file.


You may encounter an error during the import, in which case you will have to edit
the MIB file.


Check the values that are displayed after the import.


Check the values that are displayed after the import.


If everything is OK, then select the menu item “File | Save For PRTG Network Monitor” to save the new .oidlib file.


If everything is OK, then select the menu item “File | Save For PRTG Network Monitor” to save the new .oidlib file.


If necessary, save a copy of the file in the /snmplib subdirectory of PRTG.


If necessary, save a copy of the file in the /snmplib subdirectory of PRTG.


Create the SNMP library sensors and select the desired entries that are made available by the new .oidlib file.


Create the SNMP library sensors and select the desired entries that are made available by the new .oidlib file.


Definitions: MIB, MIB Files, OID, IETF

























MIB stands for “management information base.” An MIB contains information that is used to monitor and control a network device. Generally speaking, an MIB is a collection of definitions which are stored in devices as management information.

MIB file

An MIB file is a file that contains the corresponding management information for a specific device. SNMP is used for this function.


The various bits of management information are called "managed objects.” Each object has its own OID (object identifier). An OID is a series of numbers which makes the designation of each object unique. These numbers are read by SNMP and displayed in PRTG.

MIB tool

Many administrators want to know how to read, import, and convert MIB files. There are a number of MIB tools and MIB browsers on the market. Paessler AG also offers a free MIB importer which you can use to convert your MIB files.

IETF standards

The IETF has defined a global MIB in RFC 1155. MIBs are included in more than 300 of the IETF’s first 5,000 RFCs. For an initial overview, check out this Wikipedia article.



Manufacturer MIB files

Manufacturers and MIBs

Manufacturers and MIBs

Most manufacturers – including Cisco, Juniper, Dell, etc. – offer SNMP or other technologies (such as Net Flow) for their routers, switches, and workstations. But as there are countless different manufacturers, it is impossible for monitoring software to provide standard sensors for every situation or for every piece of hardware that exists on the market. This is where MIB files come into play.


Finding an MIB file

Finding an MIB file

MIBs can be found on the websites of manufacturers (usually in the download section), or on the website of the hardware you wish to monitor.

Practical tip: Hey Luciano, how can I read the OIDs that are displayed in an SNMP table?

“Monitoring objects in table form can be extremely taxing. We’ve developed the SNMP Custom Table Sensor to speed up the process. This sensor uses a meta-scan to identify the table, and then displays the table in PRTG. See the following knowledge base article for more information on how to configure this sensor.”

Luciano Lingnau works in the PAESSLER AG Technical Support Department.


“Our network engineers really love PRTG, because of its customization.”

John Krull, CTO, Oakland Unified School District, USA

Your MIB browser at a glance –
even while on the go

PRTG can be started within minutes and it's compatible with many mobile devices.


PRTG comes with all the features you need, plus more your IT infrastructure won't want to live without.


PRTG monitors these vendors and applications, and more, in one view!


PRTG simplifies your day

Our monitoring software works for you and promptly notifies you of potential issues.
It frees you to concentrate on your day-to-day tasks with peace of mind.


PRTG saves time

With PRTG, you get one central monitoring tool for your servers and entire network. Enjoy a quick overview of your whole infrastructure via our dashboard and app.

PRTG saves worry

Customizing PRTG is a breeze. Getting started or switching from another network monitoring tool is easy thanks to the PRTG auto-discovery and pre-configured device templates.

PRTG saves money

80% of our customers report substantial or even exceptional cost savings in the area of network monitoring. The experience shows that the costs for licenses have paid for themselves within a matter of weeks.


The Paessler MIB Importer and Converter

With the free MIB Browser you can read MIB (Management Information Base)
files, import them and convert them into OID libraries for PRTG. Using the library files created by the MIB Viewer you can easily set up SNMP Library sensors.

The free MIB Parser makes SNMP monitoring with PRTG easy and highly customizable.

MIB technical support: Knowledge base articles for further information



Our knowledge base (KB) contains thousands of articles from our technical support department. The following three articles will help you learn more about MIBs, the importing of MIBs, how to convert MIB to XML/OIDs and MIB browsers: 


  • I am unable to find a suitable sensor for my device, but my device supports SNMP. What can I do? See the KB article.




Award winning solution

We work hard on making our software as powerful and easy-to-use
as possible for our customers each and every day.
Of course it makes us proud when we get awards for that.




Want to read more? The following topics may also be of interest to you


SNMP monitoring

Monitor hardware and software, detect bottlenecks, offer improved network quality to your users…do all this and more with SNMP monitoring. In this section, discover the sensors PRTG uses for SNMP monitoring.

Server monitoring

PRTG is a full-service package that monitors your mail servers, web servers, database servers, and virtual servers. Learn more about server monitoring with PRTG here.

Network monitoring

More than 200,000 administrators put their trust in PRTG. One important reason: with our software, you get an overview of your entire network. PRTG provides for centralized network monitoring instead of a variety of smaller-scale stand-alone solutions.

VoIP monitoring

PRTG monitors the quality of your VoIP-connections. By preventing malfunctions and verifying service level agreements, you’ll save time and money. Read more about QoS monitoring here.


PRTG: The swiss army knife for sys admins

Adapt PRTG individually and dynamically to your needs relying on a strong API:

  • HTTP API: Access monitoring data and manipulate monitoring objects using HTTP requests
  • Custom Sensors: Create your own sensors for customized monitoring
  • Custom Notifications: Create your own notifications to send alarms to external systems
  • New REST API Sensor: Monitor almost everything that provides XML or JSON

Over 95% of our customers recommend PRTG


Paessler AG worldwide trialled PRTG in over 600 IT departments.
The aim was to tune the network monitoring software closer to the needs of the administrators.
The result of the survey: over 95% of the participants would recommend PRTG - or already had.

Recommend PRTG

German quality engineering



Made in Germany: The PRTG Network Monitoring Tool is the fruit of an engaged team. The company was founded by Dirk Paessler. PAESSLER AG's headquarters are located in the city of Nuremberg, in the heart of Germany. We combine typical German virtues such as high quality standards, industriousness, and commitment with international, cosmopolitan flair. Read more about our firm here. By the way: We are regularly looking for new recruits.

Case Studies: Airports, utility companies, banks, colleges, hospitals: PRTG is present in every industry. For each of our customers, business and organizational processes depend on the proper functioning of the network infrastructure. The PRTG customer satisfaction is close to 100%. Read in our case studies how our customers use PRTG.

Product tests: It goes without saying that we are convinced by the quality of PRTG. But what about the others? PRTG has always performed extremely well in tests. PRTG user “LanLine” sums it up best: “PRTG was already good several years ago, and has gotten better from version to version ever since.” Such has been our steadfast and sincere goal. Read more about monitoring software product tests and comparisons here.

Support: Our support team works hard every day to help customers solve their monitoring problems. Our goal is to resolve all inquiries within 24 hours (on business days). We've drafted a comprehensive Manual and built up an extensive Knowledge Base featuring videos, webinars, and FAQs. All support, of course, is also included!

Getting started is easy: The trial version is free, which means you can try our monitoring tool risk-free. To switch to another version of PRTG, simply search for an appropriate license. You can upgrade any time you like.



Network Monitoring Software - Version (November 20th, 2018)


Download for Windows and hosted version available


English, German, Spanish, French, Portuguese, Dutch, Russian, Japanese, and Simplified Chinese


Up to 100 sensors for free (Price List)

Unified Monitoring

Network devices, bandwidth, servers, applications, virtual environments, remote systems, IoT, and more...

Supported Vendors & Applications

More >>