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In MAC flooding attack, a switch is fed with many Ethernet frames, each containing different source MAC addresses, by the attacker. Switches have a limited memory for mapping various MAC addresses to physical ports. What happens when the CAM table becomes full?
Every packet is dropped and the switch sends out SNMP alerts to the IDS port
The CAM overflow table will cause the switch to crash causing Denial of Service
The switch replaces outgoing frame switch factory default MAC address of FF:FF:FF:FF:FF:FF
Switch then acts as hub by broadcasting packets to all machines on the network
When the CAM table becomes full, the switch acts like a hub by broadcasting packets to all machines on the network. This gives an advantage to the attacker and is able to sniff all packets coming from the switch.
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