Spoofing attacks, such as DHCP spoofing, MAC spoofing, Address Resolution Protocol (ARP) spoofing, and Spanning Tree attacks.VLAN-based attacks, such as VLAN hopping and attacks against devices on the same VLAN.MAC-based attacks, such as MAC address flooding.There are four typical types of attacks against a switched network: Use root guard and bpdu guard commands to prevent this. They include:Ī switch might become the Spanning Tree root bridge, and disrupt user traffic. Rogue devices might be placed maliciously or might just be connected to an access switch by an employee wanting more switch port or wireless access. These are launched from devices inside the network by either a rogue device or a legitimate device that has been compromised. However, networks must be protected against Layer 2 attacks, also. Attention has traditionally been paid to network perimeter security, such as firewall, and to mitigating Layer 3 attacks.
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