Contents
How do I stop my MAC from flooding?
How to prevent the MAC Flooding Attack?
- Port Security.
- Authentication with AAA server.
- Security measures to prevent ARP Spoofing or IP Spoofing.
- Implement IEEE 802.1X suites.
What is MAC flooding in cyber security?
A cyber attack aimed at compromising data transmitted to a device that is connected to a network switch. The method is based on overflowing the MAC address table for devices and their corresponding network segments.
What is a MAC flooding attack?
In a typical MAC flooding attack, a switch is fed many Ethernet frames, each containing different source MAC addresses, by the attacker. The intention is to consume the limited memory set aside in the switch to store the MAC address table. MAC flooding can also be used as a rudimentary VLAN hopping attack.
What are MAC attacks?
MAC (Media Access Control) Flooding is a type of cyber attack done in a network to compromise the security of the network switches. In this attack the network is flooded with the fake MAC addresses. The hacker uses this attack to steal sensitive data that is being transferred in the network.
What is IP flood?
An IP Flood is a form of malicious attack that may be perpetrated against a single device or an entire network. This is a DoS attack (Denial of Service) that aims to disrupt the normal function of a device and prohibit it from sending requests or processing information.
Is there a way to prevent MAC flooding?
Port Security is a feature of Cisco Switches, which give protection against MAC flooding attacks. Visit next lesson to learn How to prevent MAC flooding attacks by configuring port security in Cisco Switches.
What kind of attack is MAC address flooding?
MAC address flooding attack (CAM table flooding attack) is a type of network attack where an attacker connected to a switch port floods the switch interface with very large number of Ethernet frames with different fake source MAC address. Following images shows a Switch’s MAC address table before and after flooding attack.
How are Cisco switches protected from MAC flooding?
The attacker’s machine will be delivered with all the frames between the victim and another machines. The attacker will be able to capture sensitive data from network. Cisco switches are packed with in-built security feature against MAC flooding attacks, called as Port Security.
Can a MAC flooding attack be used for VLAN hopping?
MAC flooding can also be used as a rudimentary VLAN hopping attack. To prevent MAC flooding attacks, network operators usually rely on the presence of one or more features in their network equipment: