Network security via firewall
monitoring software PRTG

  • PRTG monitors your entire inbound/outbound network traffic
  • Receive constant updates about the status of your firewall
  • Automated notifications when network security is in any way compromised


Free Download
  • 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

Firewall monitoring and network safeguarding with PRTG

The stability of the network firewall is responsible for the protection of both the processes which are running as well as sensitive data. It is of the greatest importance to corporate security that the firewall be stable. IT service interruptions can paralyze the company, while the theft of company figures, future plans, and customer data can have unforeseeable consequences. It is all the more vital, therefore, that the firewall remains uninterrupted and always up to date.

With PRTG Firewall monitoring, you get a series of sensors which makes monitoring your firewall straightforward and effortless. Enjoy a clear overview of inbound and outbound network traffic, and be informed immediately in the event of a crash. This will enable you to promptly take action to restore the security of your system.

In addition, PRTG constantly monitors for firewall updates - for outdated firewall software is synonymous with a threat to security. 

Thanks to PRTG, the entire staff can work with peace of mind.

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.)

The advantages of firewall monitoring with PRTG

 A more secure business IT

A more secure business IT

All IT-based work processes are vulnerable to attacks to the IT infrastructure. With firewall monitoring, you can guarantee your firewall is always enabled and thus ward off attacks from the outside.

 Data protection taken seriously

Data protection taken seriously


Your business partners and customers trust that with you, their data is in good hands. Firewall monitoring is an important step to safeguarding this data.

 Automatic alarm 

Automatic alarm

You don't need to stay glued to the screen: you'll be notified if the firewall is down or network security is in any way compromised.



Free Download

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.

What Firewall monitoring with PRTG looks like


PRTG simplifies your day!

Let our firewall monitoring software work for you.
So you can concentrate on your day-to-day tasks with total peace of mind.


PRTG saves time

With PRTG, you get one central monitoring tool for your firewall. You'll enjoy a quick and complete overview at all times via our dashboard and app.

PRTG saves stress

Monitoring your firewall around the clock has never been easier. The built-in alert feature is quick to act - before crashes can arise. 


PRTG saves money

80% of our customers report substantial or even exceptional network management cost savings. The experience shows that the costs for their PRTG licenses have paid for themselves in an average of a few weeks.

Your Firewall at a glance – even 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!



Free Download

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.

What data does PRTG gather?


    • Traffic of inbound and outbound connections (LAN and WiFi)
    • Firewall status
    • Most used connections (only NetFlow)
    • Most active senders (only NetFlow)
    • Most used protocols (only NetFlow)


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

Steffen Ille, Bauhaus-University of Weimar, Germany

300,000 administrators worldwide 
trust in our software.


“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


  • 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: 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

How Firewall monitoring with PRTG works


PRTG Firewall Monitoring works jointly with most routers and firewalls. Cisco, Draytek, Fortinet and Bintec systems are supported. Also LANCOM and Windows Servers, as well as all other SNMP-compatible devices. SNMP is used most of the time, but for Cisco ASA firewalls, NetFlow technology is employed.

NetFlow offers a much more detailed analysis of bandwidth traffic than SNMP. While both SNMP and NetFlow show how much traffic the firewall filters, NetFlow can also indicate the most used connections and protocols and most active senders.

PRTG Firewall Monitoring can be configured in a matter of minutes, after which time the safeguarding of your network will be up and running. In the event the firewall is down or unusual activity is detected, PRTG will immediately send you an alert by email, SMS, or push notification.


i NetFlow is a protocol for collecting, aggregating and recording traffic flow data in a network. NetFlow data provide a more granular view of how bandwidth and network traffic are being used than other monitoring solutions, such as SNMP. NetFlow was developed by Cisco and is embedded in Cisco’s IOS software on the company’s routers and switches and has been supported on almost all Cisco devices since the 11.1 train of Cisco IOS Software.
Read more

PRTG supports many Firewall Vendors & Products



Most firewalls can easily be monitored via SNMP. For some products we offer a predefined sensor. Here you see a selection of the supported firewalls:


Firewall Predefined Sensor Available Link to Manual/Tutorial
Mikrotik NO (via SNMP) SNMP Monitoring




Sophos UTM NO  (via SNMP)

Device Template for Sophos UTM

Palo Alto Networks NO  (via SNMP) Tutorial
Cisco Asa





SNMP Cisco ASA VPN Users Sensor

FortiGate NO (via SNMP) SNMP Monitoring
pfSense NO (via SNMP) SNMP Monitoring
Checkpoint NO (via SNMP) SNMP Monitoring
WatchGuard Firebox NO (via SNMP) Tutorial
Draytek NO (via SNMP) SNMP Monitoring
Juniper YES Sensor


Notification System  
Responsive alerts



PRTG features a variety of memory alerts: E-mail, SMS, Pager, Apps, running an external application, etc. You can specify when and how each person is to be informed. To do so, you can add contacts and edit, delete, or pause your notifications at any time.


The notification system is built into our firewall monitoring software. There are no additional costs.

And because the alarm feature is integrated, it only takes a few clicks to set it up.



PRTG won't wait until the firewall is "on fire" before notifying you. You set your own threshold values. If these are exceeded, you'll be informed accordingly.

You can therefore intervene quickly, before employees and customers notice something is wrong. 


You want to know more about other network-related monitoring topics?

Here you find everything about...

PRTG as network traffic analyzer

PRTG as network speed monitor

PRTG as network diagnostics tool

Network security monitoring with PRTG

German quality

Free Download
  • 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


Made in Germany: The PRTG Network Monitoring Tool is the fruit of a dedicated, international team. The company was founded by Dirk Paessler. The Paessler AG headquarters are located in the city of Nuremberg, in the heart of Germany.

A quick overview: PRTG provides a quick overview, whether on your desktop or as an app on your smartphone. An individually configurable dashboard features every key stat in the form of an easy-to-understand graph, so you can always make sure your network is running smoothly.

Easy configuration: Our Smart Setup guarantees a quick and easy setup. During configuration, PRTG will ping your network and create appropriate sensors, saving you a great deal of time. Furthermore, switching from other software such as Nagios is relatively quick and easy.

Outstanding support: Our support team strives to resolve inquiries within 24 hours (on business days). Discover a wide selection of videos, webinars, and instructions in our knowledge base. Our manual is also an excellent resource.

Getting started is easy: The trial version is for free, allowing you to evaluate our monitoring tool with no strings attached. To upgrade, simply search for a suitable license. You can modify your license any time you like. 


Network Monitoring Software - Version (October 20th, 2020)


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


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