17–19 Sept 2025
Tehnical University of Moldova
Europe/Bucharest timezone

Network Monitoring With Low Cost ESP32 Boards

19 Sept 2025, 11:00
15m
Room 3

Room 3

Technical University of Moldova
Paper presentation Networking in Education and Research Sensor Networking

Speaker

Cezar Zlatea (Universitatea Politehnica din Bucuresti)

Description

The proliferation of IoT (Internet of Things) devices in small offices and typical homes has created grounds for concern regarding network security. These devices are often using communication protocols that are commonly used by regular computers, to take advantage of the existing infrastructure. However, their "black-box" designs with no user interface and questionable providers, may become a cause for concern. The potential for these devices to be compromised, be it intentionally by the manufacturer or unintentionally by a third party, can lead to privacy violations and security breaches. Such issues take place in the form of, respectively, personal data collection and distribution, and malicious attacks on the network. Moreover, many users of such devices are not aware of the implications, and therefore take little to no preventive measures.
This project provides a solution for monitoring the network traffic of IoT devices and/or computers, using relatively low-cost hardware, and a custom software solution. The idea behind it is that there needs to be a balance between effectiveness, cost and ease of use. With this in mind, I have opted for using ESP32 boards, which are inexpensive, have a good set of features and large community support, and offer enough processing power to facilitate this task. As such, the data acquisition system effortlessly captures packets from the network and relays them to the compute unit, which then uses Suricata IDS to flag events.

Author

Cezar Zlatea (Universitatea Politehnica din Bucuresti)

Co-authors

Alexandru Vaduva (UPB) Ebru Resul

Presentation materials

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