All Blog Posts

ntop

Network Visibility and Observability: ntopng vs SNMP+
Recently, we’ve encountered users with high monitoring requirements. Some users need to monitor 1,000 routers and want to know who are the top talkers or top protocols. Others have a network with 200 branches, each with a NetFlow-enabled router. They need to know from a central location who are the top bandwidth users and ports on selected branches. Essentially, these users don’t need fine-grained network traffic monitoring. They just need a rough idea of who the top network users are (IP and ports). Often, users who ask us these questions …
ntopng

HowTo Monitor+nDPI Traffic on Mikrotik Devices Using TZSP
Mikrotik devices are very popular in the ntop community. The simplest way to monitor traffic of these devices is using flows as described in this blog post. However sometimes flows might not be the best choice for various reasons including the inability to perform DPI on the captured traffic.  For full visibility you can use a different option offered by Mikrotik devices. Under Tools -> Packet Sniffer  you can export packets over the TZSP protocol (it is a sort of remote span protocol): just specify the IP of the remote …
Webinar

ntopng and nDPI Technical Webinars
One of the feedbacks we have collected at the PacketFest conference is to schedule periodic webinars about popular ntop tools we develop. For this reason, we have decided to start with ntopng and nDPI: Below you can find the video of the webinars that took plance on May 27th and June 10th.     Enjoy ! …
ntop

PacketFest 2025 was an absolute blast!
PacketFest 2025 has been a great success. About 110 people, coming from more than 10 (European and overseas) countries, met in Zürich and attended the conference organized by ntop with support from Switch, AnyWeb, and Leutert NetServices. It was a three-day event where the ntop and Wireshark communities met to discuss network traffic visibility and cybersecurity.     It was a great pleasure to have on stage many packet experts including Gerald Combs (Wireshark creator), Kelley Misata (president of OISF), and Thomas Graf (IETF chair), this in addition to the …
nEdge

Released ntopng 6.4: More Insightful Than Ever
We’re excited to announce a new ntopng stable release 6.4, a feature-packed update! With a strong focus on assets visibility and QoE monitoring. This version introduces groundbreaking new dashboards, advanced reporting, better alerting, and a lot of improvements to keep your network monitoring efficient and insightful. Breakthroughs Asset Inventory & Digital Twin DashboardVisualize your infrastructure like never before. The new dashboard provides a clear inventory of network assets with their virtual representations. Infrastructure DashboardManage multi-region deployments with a bird’s-eye view of your infrastructure and performance across distributed environments. Autonomous Systems …
Announce

Introducing nProbe 10.8: QoE, AWS/GCP VPC Support, Better GTP Traffic Correlation
We’re excited to announce the new nProbe 10.8 release! This release introduces features that improve visibility, performance, and protocol intelligence, while also addressing many community-requested improvements and fixes. Quality of Experience (QoE) Monitoring Understanding network performance from the user’s perspective is more important than ever. With QoE computation, nProbe now allows you to assess the quality of application flows, enabling proactive troubleshooting and smarter optimization. Improved GTP-C/GTP-U Correlation This release improves GTP traffic correlation for stitching mobile subscribers to their traffic (e.g. you can know the IMSI of the user …
Announce

Released Cento 2.2: Enhanced Flow Offload, QoE Metrics, and GTP Correlation
We’re excited to announce a new release of Cento 2.2, our high-performance flow-based traffic processing engine. This release brings major enhancements in traffic analysis capabilities, particularly for mobile network monitoring, quality assessment, and flow offloading on Napatech adapters. Whether you’re deploying Cento in ISP-grade infrastructures or using it for deep traffic inspection, this release is packed with powerful new features and improvements designed to push performance and visibility to the next level. Full Flow Table Offload on Napatech Adapters Cento 2.2 now offers fully-fledged Flow Table offload support with the …
Announce

Released PF_RING 9.0.0: Fully Fledged Hardware Flow Tracking
This is to announce a new PF_RING release 9.0.0! This release brings significant improvements for a deeper flow tracking integrations, making PF_RING even more powerful for building high-performance flow processing networking applications able to leverage on state-of-the-art hardware offloads at high speed. In fact we’ve streamlined support for the latest Napatech SmartNIC’s Flow Manager FPGA, now including periodic flow updates to ensure real-time flow visibility and minimal latency for exporting flow stats. We also explored DOCA Flow support in NVIDIA  BlueField and ConnectX adapters, to provide flow tracking also on …
nDPI

Introducing nDPI 4.14: Added QoE (Quality of Experience) and New Protocols, Several Fixes
We’re excited to announce the release of nDPI 4.14, a maintenance release that also includes some cool new protocol dissectors and fixes. As you know, maintaining a DPI library is no easy task, and this release is no exception. We’ve worked hard to enhance existing dissectors, making them more robust and efficient. We’ve also cleaned up some outdated code and improved flow risks. We’ll be sharing more details about the plans for the next nDPI release at PacketFest. This might be the last release of the 4.x series, so we’re …
Cybersecurity

Using Network Fingerprints Beyond Cybersecurity
Last week ntop has been invited to give a talk at neacademy in Napoli, Italy. The topic was network fingerprints and nDPI. Network fingerprints such as JA4 have been made popular by cybersecurity that uses them to spot (with limited false positives) malware and use them to find traffic pattern similarities. During the talk, we explained that it’s possible to improve fingerprint reliability by combining some of them, in addition to use fingerprints for various other activities beyond cybersecurity including (but not limited to) traffic classification and micro-segmentation. This was …
nProbe

AI-Driven Networks: A ML Solution for 5G Networks based on nProbe
In this contributed post the Universidade de Aveiro, Instituto de Telecomunicações, Portugal, explains how nProbe has be successfully used in 5G networks.   Introduction As networks evolve to meet the demands of modern connectivity, the need for intelligent traffic monitoring and anomaly detection becomes increasingly critical. In the context of 5G networks, where high-speed data transfer and low latency are paramount, Machine Learning (ML)-based solutions provide a robust mechanism for detecting anomalies and ensuring network reliability. Our project leverages nProbe, a high-performance NetFlow/IPFIX probe, to extract a comprehensive set of …
ntop

Introducing Network Quality Measurement (QoE) in ntop Tools
Quality of Experience (QoE) measures how satisfied users are with a network service based on their subjective perception. Unlike Quality of Service (QoS), which focuses on technical metrics (e.g., latency, jitter, packet loss), QoE evaluates the actual end-user experience—such as video streaming smoothness, call clarity, or web browsing responsiveness. QoE is important from various points of view including: User Satisfaction: Even if network metrics appear good, poor QoE leads to frustration (e.g., buffering videos or choppy VoIP calls). Business Impact: Bad QoE can result in lost customers, reduced productivity, or …

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