1. Where Are Mac Addresses Stored For Future Reference
2. Where Are Mac Addresses Stored For Future Reference Free
3. Where Are Mac Addresses Stored For Future Reference Letter

A lot of attention is paid to securing the higher layers of the OSI reference model with network-level devices such as firewalls, intrusion protection systems (IPS), and applications such as antivirus and host-based intrusion protection (HIPS).

Layer 2 attacks occur, as you would expect, at Layer 2 of the OSI model. We know that switching operates at Layer 2; therefore, most of these attacks need to be mitigated in the switches you deploy in your network.

Layer 2 attacks are often overlooked when designing a network security solution; it is quite normal to find Layer 2 networks with no protection whatsoever. The availability of dedicated Layer 2 attack tools makes it necessary to defend against possible attack by implementing the features that Cisco offers within IOS Software.

Where Are Mac Addresses Stored For Future Reference

One of the best tools used for testing Layer 2 security is Yersinia that is freely available from http://www.yersinia.net/ and is part of the BackTrack 4 security distribution.

Types of Layer 2 Attacks

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This section covers several types of Layer 2 attacks. This section also explains how to mitigate these attacks by implementing the correct control in Cisco IOS.

Where Are Mac Addresses Stored For Future Reference Free

Following are the main types of Layer 2 attacks:

Where Are Mac Addresses Stored For Future Reference Letter

• CAM overflow
• VLAN hopping
• MAC spoofing
• Private VLAN attacks
• DHCP attacks