Paessler PRTG

Ethernet monitoring
with PRTG


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    Analyze data packets individually or together
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    Monitor bandwidth consumption
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    Detect weak spots in the network







The importance of Ethernet monitoring

Wired networks can sometimes get incredibly confusing and complex. Without the right tools, it’s nearly impossible for sysadmins to monitor their Ethernet.

Incomplete data transfers and data transfer malfunctions are not necessarily caused by the same things. This is where a monitoring tool like PRTG comes in. The PRTG Network Monitor by Paessler makes it easy to keep a constant eye on networks of all sizes.

Monitoring is especially important in Ethernets, which not only encounter software issues (e.g. with network protocols) but also hardware problems such as malfunctioning network cards and cables. Without a monitoring tool, these problems can be impossible to detect.


Analyze and monitor data traffic
with a network sniffer

Network sniffers, otherwise known as network analyzers or packet analyzers, are commonly used to capture and log data traffic in networks. By detecting unusual spikes in traffic, network sniffers allow IT administrators to pinpoint the data types or connections which may be responsible for disruptions and transmission issues.

The PRTG Network Sniffer makes it easy for IT admins to analyze and evaluate the performance of their Ethernet.


Packet sniffing to get a handle on your Ethernet

The PRTG Packet Sniffer Sensor monitors the headers of all the data packets in your network. Headers contain useful information on their packets, including their source and the IP address of their destination.

With this information, you can determine which applications or IP addresses serve as the source of traffic in your network. It also lets you identify and determine the cause of increased or unusual traffic.

 iWhat is packet sniffing?

Packet sniffing is the practice of gathering, collecting, and logging some or all packets that pass through a computer network, regardless of how the packet is addressed.
Read more


Monitor individual packets with sFlow and jFlow v5 sensors

It doesn’t always make sense to monitor Ethernet traffic in its entirety. PRTG therefore also comes with sensors for monitoring individual data packets. These include the sFlow Sensor, which can be configured to only monitor every nth packet. The resulting random sample makes it possible to draw initial conclusions regarding possible causes of problems, without having to monitor all the data in your network.

This type of monitoring is especially recommended for larger Ethernets, as comprehensive analyses tend to put an unnecessary strain on the network.

jFlow v5 sensors can also be used to complement PRTG sniffing methods. These sensors monitor a wide selection of Juniper routers and switches.

Here, too, individual data packets are “sniffed” to analyze network connections and help you get a handle on your Ethernet. 


PRTG also monitors wireless networks

PRTG provides you with a comprehensive overview of both your LAN and WLAN.

Our monitoring tool lets you keep a constant eye on your signal strength, your bandwidth, and the status of your routers and access points.

More on WLAN monitoring


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.”

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“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.”

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

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Create innovative solutions with Paessler’s partners

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


baramundi and PRTG create a secure, reliable and powerful IT infrastructure where you have everything under control - from the traffic in your firewall to the configuration of your clients.

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

Read more


Siemon and Paessler bring together intelligent building technology and advanced monitoring and make your vision of intelligent buildings and data centers become reality.

Read more



PRTG in a nutshell


PRTG monitors your entire IT infrastructure

Use PRTG to monitor, for example, network traffic, applications, bandwidth, cloud services, databases, virtual environments, availability & uptime, ports, IP addresses, hardware status, network security, web services, and much more.

PRTG supports the most important technologies

Monitor your network for example via SNMP, flow protocols (NetFlow, jFlow, sFlow, IPFIX), SSH, WMI, or ping. PRTG also supports technologies used in Industrial IT & OT environments, such as OPC UA, MQTT, or Modbus. Use the powerful PRTG API for custom integrations (for example via Python, PowerShell, or REST).

PRTG can be used for any operating system

Download and install PRTG Network Monitor on a Windows system or use our cloud-based product PRTG Hosted Monitor for all other operating systems. What’s more: our native PRTG Desktop application runs on Windows or macOS – for even quicker access & multi-server views.



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 (June 13th, 2024)


Download for Windows and cloud-based version PRTG Hosted Monitor available


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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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