Paessler PRTG

MIB browser: Read and analyze
MIB files with PRTG


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    Free MIB Browser and
    MIB importer

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    Import and convert MIB files

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    Select all or individual OIDs

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    PRTG uses SNMP for
    its monitoring







5 steps for analyzing MIBs and OIDs


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Download the free
Paessler MIB Importer

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MIB files

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Convert MIB files or partial
selections into .oidlib files

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Set up
PRTG sensors


The PRTG MIB Importer



MIB OID tree


PRTG Network Monitor makes network monitoring easy

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?


 i How PRTG defines sensors

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.



250+ 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 an all-in-one monitoring tool. Upon purchasing a license, you’ll get access to all monitoring features as well as the alarm system, technical support, and the full range of sensors.



PRTG is used by more than 500,000 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.



What is 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.




luciano lingnau

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.


Trusted by 500,000 users and recognized
by industry analysts as a leader


“Fantastic network and infrastructure monitoring solution that is easy to deploy and easier still to use. Simply the best available.”

Read more reviews

“Software is absolutely perfect, Support is superior. Meets all needs and requirements, this is a must have solution if you are needing any form of monitoring.”

Read more reviews

“The tool excels at its primary focus of being a unified infrastructure management and network monitoring service.”

Read more reviews


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

PRTG is set up in a matter of minutes and can be used on a wide variety of mobile devices.


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

vendors vm ware


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



quote john krull

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

John Krull, CTO, Oakland Unified School District, USA


PRTG makes your job easier

Our monitoring software frees you to focus on other tasks by promptly notifying you of potential issues.


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Save effort

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

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Save time

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

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Save money

80% of our customers report substantial cost savings with network monitoring. Your costs of licenses will likely pay for themselves within 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.





“Easy to implement and configure with good technical support.”

R. v. S., ICT Manager at Heinen & Hopman Eng BV


Create innovative solutions with Paessler’s IT partners

Partnering with innovative IT vendors, Paessler unleashes synergies to create
new and additional benefits for joined customers.

IP Fabric

Combining the broad monitoring feature set of PRTG with IP Fabric’s automated network assurance creates a new level of network visibility and reliability.

Read more


Paessler and Plixer provide a complete solution adding flow and metadata analysis to a powerful network monitoring tool.

Read more


With ScriptRunner, Paessler integrates a powerful event automation platform into PRTG Network Monitor.

Read more


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 500,000 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.

Availability monitoring

PRTG monitors the availability of your website, network, and servers (including the mail server). It offers a comprehensive overview that is available 24/7, so you can achieve your goal of 100% uptime.


We asked: would you recommend PRTG?
Over 95% of our customers say yes!


Paessler AG conducted trials in over 600 IT departments worldwide to tune its network monitoring software closer to the needs of sysadmins.
The result of the survey: over 95% of the participants would recommend PRTG – or already have.


Recommend PRTG


PRTG the multi-tool

PRTG: The multi-tool for sysadmins

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

  • HTTP API: Access monitoring data and manipulate monitoring objects via HTTP requests
  • Custom sensors: Create your own PRTG sensors for customized monitoring
  • Custom notifications: Create your own notifications and send action triggers to external systems
  • REST Custom sensor: Monitor almost everything that provides data in XML or JSON format


Still not convinced?



More than 500,000 sysadmins love PRTG

Paessler PRTG is used by companies of all sizes. Sysadmins love PRTG because it makes their job a whole lot easier.

Still not convinced?


Monitor your entire IT infrastructure

Bandwidth, servers, virtual environments, websites, VoIP services – PRTG keeps an eye on your entire network.



Try Paessler PRTG for free

Everyone has different monitoring needs. That’s why we let you try PRTG for free. Start now with your trial.




Network Monitoring Software - Version (November 15th, 2023)


Download for Windows and cloud-based version PRTG Hosted Monitor 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

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