PRTG - All-In-One
LAN scanner


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100 Sensors, perfect for small networks

LAN scanner PRTG
This is how it works

LAN monitoring lets you keep track of your entire local network, including your workstations, routers, switches and servers or printers. PRTG monitors your LAN and sends notifications about connection problems, limited availability, or overloaded server.

PRTG uses SNMP, Packet Sniffing and NetFlow for scanning your LAN.

SNMP is used the most. It is easy to set up and requires only a minimum amount of bandwidth and CPU. Individual data packets can be analyzed using Packet Sniffing, while NetFlow technology is used for the monitoring of Cisco devices.

Pre-defined sensors can also be used immediately in PRTG for other Flow technologies, such as IPFIX, sFlow and jFlow.

Your LAN at a glance – even on the go

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


More than just LAN: Monitoring distributed networks and WANs is no problem with PRTG

Distributed networks: Scan your sites from one central IT. You can monitor separate LANs with our Remote Probes (available with a PRTG license only). Remote Probes collect monitoring data. Your core server evaluates this LAN monitoring data and immediately sounds the alarm if there are problems.

Remote Probes may be installed both in the same network as your core server or in other networks if the latter benefit from continuous Internet connections.

Check out our video on distributed networks here:


WAN: Wide area networks are often susceptible as they stretch across a larger area, e.g. several countries or continents. However, WAN data is just as crucial for companies and organizations as data from a LAN. Applications and CRM systems must function at all times if employees are to be expected to work efficiently. PRTG monitors your WAN. Take advantage of our licenses to expand your network monitoring tool in a flexible and simple manner.


 “The greatest advantage of PRTG? You get to rest easy“

Steffen Ille, Bauhaus-University of Weimar.

This is what LAN scanner PRTG looks like


PRTG simplifies your day!

PRTG monitors your entire LAN.
So you can concentrate on your day-to-day work with total peace of mind.


PRTG saves time

With PRTG, you get one central monitoring tool for both your LAN and 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 more than 200 sensors 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 of our customers shows that the costs for licenses have paid for themselves in an average of 3 ½ months.

PRTG keeps an eye on these 5 pillars of LAN monitoring





Network Monitoring, Network Analysis and Network Diagnostics

All inclusive scanning of your LAN with PRTG Network Monitor



iBandwidth is measured as the amount of data that can be transferred from one point to another within a network in a specific amount of time. Typically, bandwidth is expressed as a bitrate and measured in bits per second (bps). It refers to the transmission capacity of a connection and is an important factor when determining the quality and speed of a network.   Read more ...


Many administrators have yet to set up monitoring for their LAN networks - with disastrous effects. When problems occur, it often takes a long time to find the bugs behind them. This costs both time and peace of mind. Meanwhile, employees or customers are unable to access important features, resulting in an unnecessary waste of resources. The following five elements are those which should by all means be monitored:

Lan Montoring Workstations


In many sectors, employees need high-performance workstation computers, such as those used for video or 3D processing. Workstation functionality is thus paramount to productivity. From the hard disk to the CPU: with PRTG, you're always in the know.

More on CPU monitoring


All network data passes via the routers. They are the hubs of your LAN, and therefore must be monitored. The sooner you see your routers overloading, the quicker you'll be able to take countermeasures. PRTG lets you keep a constant eye on their status.

More on router monitoring


As distribution nodes, your switches are also under extreme pressure. All it takes is one single switch to overload for your entire LAN network to suffer. Never lose sight of your switches with PRTG. If a switch overloads, you'll notice it at once.

More on switch monitoring 


PRTG monitors all kinds of hardware and servers. It supports all major manufacturers like Cisco, HP, Oracle or Dell. Whether database, mail, or web servers: PRTG gives you an uninterrupted overview and total control so your servers can run both smoothly and flawlessly. And you'll be notified quickly at the very first sign of trouble.

More on server monitoring with PRTG


How much network bandwidth do you have? Which devices and applications need how much bandwidth? With PRTG, you'll have your finger on the pulse of your bandwidth. And that means you can ensure the hassle-free operation of your company or organization.

More on bandwidth monitoring with PRTG

PRTG improves your LAN at all levels



Your LAN network should be completely operational at all times. Example: a router switches off at night - without your knowledge. Scenarios like this are virtually impossible with PRTG. You can monitor the uptime of your network any time you like by using an SNMP Uptime Sensor.


LAN Sicherheit


Firewalls are attacked countless times each and every day. As an administrator, you must be notified immediately if your firewall is down. A PRTG Ping-Sensor indicates the accessibility of your firewall in real time. Should your firewall crash, you'll immediately receive an SMS, e-mail, or other type of push notification.


LAN Performance


Your company or organization is experiencing continuous growth? An increase in employees leads to a greater amount of traffic -  and even more devices. This automatically results in bottlenecks. With PRTG, you can monitor devices comprehensively with just one central tool, such as the SNMP Hardware Status Sensor.


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.



PRTG: The Swiss Army Knife for 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

Unhappy with your current software? Switch to PRTG!


Although many administrators already have one or more monitoring tools, they are not always satisfied.

Switching to PRTG is easy: with over 200 pre-configured sensors, PRTG quickly has a grasp of your network. Its Auto Discovery feature automatically searches for devices and creates sensors. PRTG is thus configured speedily and conveniently. Switching from Nagios or other tools take no time at all.

What makes PRTG better than the rest?


PRTG zentrales LAN Monitoring

A central tool

The proper functioning of your Local Area Network depends on many different devices. With PRTG, you get a central, professional tool with which you can monitor your LAN as well as your entire network.

Say goodbye to a mishmash of individual monitoring tools! All you need is PRTG!

A clear overview

Your dashboard and app immediately let you see what’s working - and what’s not. And thanks to the customizable alarm feature, you’ll receive prompt alerts should anything go wrong.

Configure your sensors with just a few clicks so you can be notified before system failures arise!

Alarm LAn PRTG

Prompt alerts

Do problems crop up in your LAN? Thanks to the built-in PRTG alarm feature, you’ll be notified at once! Notifications are sent by SMS, e-mail, or a free push message to your Android or iOS device. You can even receive a SYSlog-message or acoustical alert.

Quote Gerald Schoch

Practical tip: “Hey Gerald, what would you tell administrators who want to use PRTG to monitor their LANs? ”

“The customizable alarm function is a handy feature of PRTG. If my firewall crashes, I should be notified as quickly as possible – by SMS or an acoustic alert, for example. If my router hints that it could go belly up sometime in the next few days, then even a simple e-mail will suffice. Configuring this feature is a piece of cake.”

Gerald Schoch works in PAESSLER AG’s technical documentation department.




PRTG is the PAESLLER AG's network monitoring tool. Our software is used by more than 200,000 administrators worldwide, whether it be to monitor their hardware and server performance, virtual environments, or the accessibility of their websites. PRTG is a network analysis solution for Windows.

Our network monitoring software, created in 1997, is the brainchild of Dirk Paessler. The software firm is located in Nuremberg, Germany. We are driven by the highest of standards as we continue to perfect our software. And should you ever encounter a glitch, our technical support department generally answers inquiries within 24 hours.

Get started with memory monitoring with PRTG. You'll save time, worry, and money. PRTG is installed in a matter of minutes. Enjoy 100 free sensors, plenty for small networks. Upgrade whenever you like.


Network Monitoring Software for Windows - Version (September 11th, 2017)


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