Development of Recommendations for the Implementation of Integrated Security in the Corporate Network at the OSI Data Link Layer

Layer 2 is considered to be the weakest link in OSI model because LANs traditionally were under the administrative control of a single organization where all persons and devices were trusted. Today, with the newest attacks, LANs became more vulnerable to penetration. OSI Layer 2 solutions are not effective unless the management protocols are secured. This article analyses vulnerabilities at the Data Link Layer and describes ways to secure management protocols.