Date Added: Jul 2010
Security is at the forefront of most networks and many companies implement a comprehensive security policy encompassing many of the OSI layers, from application layer all the way down to IP security. However, one area that is often left untouched is hardening layer 2 and this can open the network to a variety of attacks and compromises. This paper has a focus on understanding and preventing Layer 2 attacks on the Cisco Catalyst 6500 switching platform. Denial-of-Service (DoS) attacks are always a major concern as they can come from both internal and external sources.