This paper evaluates performance impact of WPA2 security protocol on various operating systems in modern wireless networks. For the purpose of experiments IEEE 802.11n wireless network platform was deployed. Metrics of throughput and jitter were obtained during the generation of TCP and UDP data flows in different security scenarios. Experimental results showed that IPv4 operating systems achieve higher throughput values than IPv6 systems under the same conditions within the IEEE 802.11n wireless network. Results further indicate that WPA2 security protocol reduces value of throughput and increases jitter in wireless networks.
U radu su prikazani nedostaci današnjih IEEE 802.11 bežičnih mreža u situacijama kada se nađu na meti napadača. U meri u kojoj su namena i obim ovog rada to dozvoljavali, obrađene su savremene metode napada na bežične računarske mreže. Uprkos napretku i razvoju sigurnosnih protokola i dalje postoje slabosti u IEEE 802.11 bežičnim mrežama. Mogući su brojni netehnički, mrežni i softverski napadi. Za sada, bežične mreže nije preporučljivo koristiti u okruženjima gde se ne toleriše nepouzdanost ili nedostupnost.
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