Free netflow monitoring tool

NetFlow Analyzer is a flow-based, free bandwidth monitoring tool for Windows and Linux that helps you monitor and analyze network traffic and troubleshoot bandwidth issues in real-time. With the free NetFlow Analyzer, our free network bandwidth monitor, you will get to monitor and analyze traffic for up to 2 interfaces for free.

Download it and use it forever! Want to monitor more interfaces? To manage your bandwidth more efficiently, download NetFlow analyzer, one of the best free network traffic monitoring tools.

Try our free bandwidth analyzer's base pack with 10 interfaces, and it can scale up as per your network's need. Free Bandwidth Monitor Identify the top talkers in your network by protocol, application, and IP address.

Pinpoint conversations responsible for anomalous or excess traffic. Monitor traffic usage by speed, volume, utilization and packets. The need for a combination of many different tools is a thing of the past. And can be used as a professional NetFlow Analyzer software, as well. PRTG uses an intelligent Auto Discovery to automatically set up comprehensive monitoring, and creates all the sensors you need. NetFlow version 5 is in widespread use.

NetFlow version 9 is an advanced form of NetFlow technology. PRTG lets you recognize if your switches are not equipped to handle the quantity of data of your backup solution, before they become completely overloaded. Individual sources often use disproportionately high amounts of network bandwidth.

These sources may be individual users, but also applications or specific data. Many companies experience fluctuations in access to various websites or internally-used applications. Define your own thresholds with PRTG NetFlow Analyzer so you can be informed early: ideally, before the performance of your system takes a hit. Thorough backups can lead to problems for the entire network. Such problems are frequently the result of individual routers or switches which overload during the backup and thwart the entire network.

Administrators must therefore find out beforehand which NetFlow version is supported by their routers and switches. 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. 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. Customizing PRTG is a breeze. Getting started or switching from another network monitoring tool is easy thanks to the auto-discovery and pre-configured device templates. The experience shows that the costs for licenses have paid for themselves within a matter of weeks. Trusted by , users and recognized by industry analysts as a leader.

Simply the best available. Read more reviews. Meets all needs and requirements, this is a must have solution if you are needing any form of monitoring. Alternative: If you do not require long-term traffic analyses for every single PC and would only like to monitor the network traffic occurring presently and recently on the basis of IP or protocol, then creating a NetFlow sensor and correspondingly analyzing the data traffic in the Toplists based on IP or protocol is sufficient.

More information on setup: search answers to user questions in our Knowledge Base. In this article , you'll find additional tips on the configuration of Cisco routers. Configure PRTG. Choose a suitable license to enjoy comprehensive NetFlow traffic monitoring with over types of sensors. You can do this at a later time. In the next step, you'll create the NetFlow sensor on this computer.

Pay special attention to the Flow version which is exported. Create NetFlow sensors which are appropriate for the exported Flow version and target address and configure the UDP port and an IP address in the sensor settings where you would like the flows to be received.

Another option is to indicate the IP address of a specific Cisco device if you would like the flows to be received by such a device, and turn on sampling mode if you have set this mode on the target device. Enter a value for the Active Flow Timeout which is at least one minute longer than that of the device. Finally, choose which of the sensor's data traffic categories should be displayed in PRTG NetFlow Analyzer, and define an optional filter for the desired data.

In principle, these virtual switches connect the virtual network cards of virtual machines VMs to the network by way of the physical network cards of hosts. VMware has incorporated NetFlow for these virtual switches. Both monitoring and the NetFlow traffic analysis of physical Cisco devices are operational here. The aim was to tune the network monitoring software closer to the needs of the administrators. Here too you can configure devices especially for PRTG.

It features a high degree of similarity to NetFlow5. Find out more about our jFlow sensor. It gives you an important first look, e. The traffic monitoring part of this package relies on NetFlow and similar statistics gathering protocols to gather live traffic data from switches and routers. The traffic monitor is able to communicate with network devices provided by a long list of manufacturers. There is also the BGP traffic monitoring feature available with this tool.

Use it to monitor traffic volume distribution by different paths, optimize your peering strategy, and more. Noction installs on Linux and it is available for a day free trial. It also generates helpful charts that make it easy to visualize the data.

Limitations: Monitors only two interfaces. But, for the first days it can monitor unlimited interfaces. It took a little more effort to get up and running than some of the other software, but is a great open-source alternative.

Limitations: None if you download and compile it yourself — source code can compile on Linux or Windows. PRTG is a full network monitoring system. The free version includes a NetFlow sensor, in addition to many other features like reporting, alarming, and SNMP monitoring. Scrutinizer is another comprehensive NetFlow analyzer. There were numerous tutorials and videos included in the product, so that could have been part of the reason for the bulk.