This diploma thesis is dealing with creating a web interface for managing and configuring RouterOS system using MikroTik API. Web interface is protected against intrusion unauthorized persons and contains mechanisms for managing users. This web interface allows extend the application using modules, which can extend functions of this interface. PHP framework was used for for creating this interface, configuration of RouterOS can be stored in a MySQL database.

Darbe nagrinėjami bevieliai kompiuteriniai tinklai Wi-Fi ir jų problemos. Nustatomos kelios iš pagrindinių bevielių tinklų problemų. Radijo modulio veikimo režimas yra halfduplex, nepakankamas naudingo srauto perdavimas, srauto klasifikacijos ir prioritetizacijos nebuvimas mano manymu yra pagrindinės bevielio ryšio įrenginių problemos. Bandoma ieškoti problemų sprendimo variantus. Vienas iš galimų sprendimų yra sukurti bevielio ryšio įrenginį, kuris turės šių problemų realizaciją. Ieškoma įrenginiui sukurti būtinų detalių, tokių kaip platforma, radijo modulis, antena ir kitos būtinos detalės. Pirmiausia pasirenkama PC-based platforma dėl to kad turi didesnį produktyvumą ir yra universalesnė. Vienareikšmiškai pasirenkamas 5 GHz radijo dažnis, kadangi įrenginys bus testuojamas ir naudojamas realaus tinklo infrastruktūroje Vilniaus mieste. 2,4 GHz dažnio ruožo naudojimo buvo atsisakyta dėl stipraus užterštumo. Kaip paaiškėjo analizuojamos problemos yra susijusios viena su kita ir reikalauja kompleksinio sprendimo. Buvo nustatyta problemų prigimtis ir jos sprendimas: bendro srauto ribojimas, srautų pagal paskirtį atskyrimas ir jų ribojimas. Ieškomos standartinės ir nestandartinės problemų sprendimo priemonės, tobulinamos, tarpusavyje suderintos ir pritaikytos kuriamai sistemai. Tik realioje tinklo infrastruktūroje su realiais vartotojų generuojamais srautais pavyko nustatyti ir pašalinti trukumus. / This work is an analysis of wireless computer networks Wi-Fi and their problems. Few main wireless networks problems established. Radio module working mode is halfduplex, insufficient transfers of useful data stream, absence of stream classification and prioritisation in my opinion is a main problems of wireless devices. Attempt to search solution of the problems. One of the possible solutions is making an own wireless device witch will have realisation of this problems. Searching for necessary parts to make a device, such as platform, radio module, antenna ant other necessary parts. First of all I have chosen PC-based platform because it has a good productivity ant is more universal. Unambiguous choice was 5 GHz radio frequency, because device will be tested and used in real network infrastructure of Vilnius city. The use of 2,4 GHz radio frequency was rejected because of high radio pollution. It emerged that analysed problems are associated one with another and needs complex solution. Was found nature of this problems and its solutions: total bandwidth shaping, separation of different streams by purpose and their shaping. Searching for standard and nonstandard means to solve such problems, modifying, matching together and adjust to created system. Only in real network infrastructure with real user generated streams was able find and eliminate limitations.

The master`s thesis deals with a concept of a web information system, designed to manage clients of a wireless network based on Mikrotik routerboards. The system allows the internet provider to have a great survey over all clients of the wireless network and to manage the settings of Mikrotik based network hardware. Furthermore, it offers an ability of signal strength monitoring and data accounting. The thesis has been split into two sections. The first one describes the information system as such, used platforms, equipment, running services and server configuration. The second section is fully focused on the analysis of the application security, database schema design and functional forms. The strongest emphasis has been put to the conjunction of the Mikrotik OS based routerboards with a web server and to the testing in a real environment.

The thesis describes a comprehensive solution of a web application for administration of extensive LAN and WAN networks, which are based on nodes by MikroTik . There is a feasibility study, which says, what modules and what functionality should be included. Also a database structure is clarified and technical procedures of solution of the whole assignment are outlined with an emphasis on universality and maximal simplicity.

The thesis described the proposal for a wireless network problems. There are recorded and compared the characteristics of different wireless technologies. The possibility of voice communication securing is outlined and solutions implemented in the form of ZRTP protocol. The requirements for quality of service are discussed and the solutions to this issue are proposed. Other chapters are devoted to the actual design of specific equipment, including antennas and advance resource. The whole network is practically implemented in the mountainous countryside of eastern Wallachia. In conclusion, this work is network mate in terms of QoS (quality of service) and tested in terms of prioritization of voice communication.