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
Unlimited version of PRTG for 30 days. After 30 days, PRTG reverts to a free version.
Or, you can upgrade to a paid license anytime.
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- 5 steps for analyzing MIBs and OIDs
- PRTG Network Monitor makes network monitoring easy
- PRTG sensors
- Network monitoring: PRTG is...
- Definitions: MIB, MIB Files, OID, IETF
- Tutorial: Opening an MIB file
- Manufacturer MIB files
- The Paessler MIB importer and converter
- MIB technical support: Knowledge base articles for further information
5 steps for analyzing MIBs and OIDs
Download PRTG
Download the free
Paessler MIB Importer
Open MIB files
Convert MIB files or partial
selections into .oidlib files
Set up PRTG sensors
The PRTG MIB Importer

MIB OID tree
Unlimited version of PRTG for 30 days. After 30 days, PRTG reverts to a free version.
Or, you can upgrade to a paid license anytime.
PRTG sensors
How many OIDs do you want to read?
- 1 OID: SNMP Custom Sensor
- 10 OIDs: SNMP Custom Advanced Sensor
- All OID values: SNMP Library Sensor
- OIDs for SNMP tables: SNMP Custom Table Sensor
- It costs nothing to get started: the first 100 PRTG sensors are free and never expire!
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.
Unlimited version of PRTG for 30 days. After 30 days, PRTG reverts to a free version.
Or, you can upgrade to a paid license anytime.
Network monitoring:
PRTG is...
Comprehensive
With PRTG, you can monitor your entire network. Servers, routers, switches, traffic, cloud applications... PRTG lets you keep an eye on everything.
Easy-to-use
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.
Transparent
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.
Effective
PRTG is used by more than 300,000 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
Customizable
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
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.
Launch the program.
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.
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 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.
Unlimited version of PRTG for 30 days. After 30 days, PRTG reverts to a free version.
Or, you can upgrade to a paid license anytime.
Definitions:
MIB, MIB Files, OID, IETF
MIB
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.
OID
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
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
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.
Trusted by 300,000 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.”
“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.”
“The tool excels at its primary focus of being a unified infrastructure management and network monitoring service.”
Unlimited version of PRTG for 30 days. After 30 days, PRTG reverts to a free version.
Or, you can upgrade to a paid license anytime.
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 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.
- My SNMP sensors do not work. What should I do? See the KB article.
- My SNMP sensors do not work. What should I do? See the KB article.
Unlimited version of PRTG for 30 days. After 30 days, PRTG reverts to a free version.
Or, you can upgrade to a paid license anytime.

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 300,000 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.
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.
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.
PAESSLER AG –
German quality
engineering
- Unlimited version of PRTG for 30 days
- After 30 days, PRTG reverts to a free version
- Or, you can upgrade to a paid license anytime
Most administrators want to test a tool for free before deciding to make an investment.
The many advantages of PRTG:
1. Free trial version: Take the time to explore PRTG so you can determine if it satisfies your needs and meets your expectations. Once the trial is over, it’s easy to upgrade your already configured version of PRTG, which means you’re much less likely to make an incorrect purchase.
2. One tool, one overview: Administrators often use a variety of monitoring solutions for their network or for the individual components of their infrastructure. But using several different tools every time you want to create an overview costs time and energy. PRTG is an “all-in-one” solution. Our dashboard and app provide a comprehensive overview, whenever you want it.
3. Quick customer support: Got a question? Stuck on a problem and need a hand? PRTG is backed by a dedicated development and support team. We do our utmost to answer every customer inquiry within 24 hours (on business days). Browse all our support topics here.
Configure your PRTG today. The trial version is free of charge. Save time, worry, and money with our monitoring tool designed for your network and entire infrastructure.
PRTG |
Network Monitoring Software - Version 21.1.65.1767 (January 26th, 2021) |
Hosting |
Download for Windows and hosted version available |
Languages |
English, German, Spanish, French, Portuguese, Dutch, Russian, Japanese, and Simplified Chinese |
Pricing |
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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