DATA LINK LAYER SECURITY PROBLEMS AND SOLUTIONS
Institution: | Högskolan i Halmstad |
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Department: | |
Year: | 2015 |
Keywords: | data link layer; Natural Sciences; Computer and Information Science; Computer Engineering; Naturvetenskap; Data- och informationsvetenskap; Datorteknik; Informationsteknologi; Information Technology |
Record ID: | 1347813 |
Full text PDF: | http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-27574 |
The Open Systems Interconnect Model (OSI) is a conceptual model of networking thatcategorizes network functions into seven layers. It is defined in this model that how layerscommunicate with each other. In this thesis, we address common Layer 2 attacks and theirsolutions. Layer 2 is considered a very weak link in a secure network. If the data is compromisedat Layer 2, it cannot be detected at other layers because each layer works without the knowledgeof other layers. We discuss Layer 2 weakness and vulnerability exploitation tools briefly. It isexplained how an attacker can exploit network by using different attack tools. Our results showthat these attacks are very productive if a network administrator does not implement propersecurity at Layer 2 in the OSI model. We propose solutions to secure Layer 2 devices and thesesolutions are implemented by using attack tools. Security configurations are deployed to combatagainst attacks and protect the integrity, confidentiality, and availability of the network traffic.