Which frames are spoofed in stp manipulation attacks




















There are two primary methods of VLAN hopping: switch spoofing and double tagging. Both attack vectors can be mitigated with proper switch port configuration. Switch spoofing is a type of VLAN hopping attack that works by taking advantage of an incorrectly configured trunk port.

By tricking a switch into thinking that another switch is attempting to form a trunk, an attacker can gain access to all the VLANs allowed on the trunk port. When a switch boots up, it begins a process of identifying other switches and sorting out which is the root bridge.

After a root bridge is elected, the network topology is established from its perspective of the connectivity. The switches determine the path to the root bridge, and all redundant paths are blocked. It provides a dedicated connection for the IDS device. It allows an IDS device to direct malicious traffic to it, isolating that traffic from other areas of the network.

Which attack is mitigated by using port security? Which technology is used to protect the switched infrastructure from problems caused by receiving BPDUs on ports that should not be receiving them? Which three switch security commands are required to enable port security on a port so that it will dynamically learn a single MAC address and disable the port if a host with any other MAC address is connected?

Choose three. When configuring a switch port for port security, what is the default violation mode? SPAN can send a copy of traffic to a port on another switch. SPAN can be configured to send a copy of traffic to a destination port on the same switch. Which Cisco endpoint security product helps maintain network stability by providing posture assessment, quarantining of noncompliant systems, and remediation of noncompliant systems?

Which attack relies on the default automatic trunking configuration on most Cisco switches? STP recalculation may also cause a denial-of-service DoS condition on the network by causing an interruption of 30 to 45 seconds each time the root bridge changes. Figure shows an attacker using STP network topology changes to force its host to be elected as the root bridge. Cisco Certified Expert.



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