NetArgus: An SNMP Monitor & Wi-Fi Positioning, 3-tier Application Suite

The paper describes the necessary fields investigated for creating an application that is able to monitor any kind of network, wired or wireless, with all its possible aspects. In the same application, we also implemented original algorithms for finding the position of a moving station, utilizing the signal level of the wireless protocols 802.11 devices (Wi-Fi). Field research and exhausting sampling was done, in order to resolve the various practical problems faced, according to the signal level of the wireless stations and the hardware involved (cables, antennas etc). Also various flows and loosenesspsilas were discovered of the 802.11 protocol, like the lack of definition of the signal level and its range width. Various practical problems of the positioning issue have been satisfactory managed. A 3-tier application was created, capable to draw paths and manipulate proper information from various network moving clients, using low level operating system libraries and SNMP.