What are two potential network problems that can result from ARP operation?
ARP spoofing, ARP cache poisoning
Two potential network problems that can result from Address Resolution Protocol (ARP) operation are:
1. ARP spoofing: This is a type of network attack where an attacker sends falsified ARP messages to the network, tricking the network devices into associating the attacker’s MAC (Media Access Control) address with a legitimate IP address. As a result, all traffic intended for the legitimate IP address is redirected to the attacker’s machine. This can lead to various security issues, such as data interception, unauthorized access, and man-in-the-middle attacks.
2. ARP cache poisoning: Also known as ARP poisoning or ARP poisoning attack, this occurs when an attacker modifies the ARP cache on a network device or router. By sending falsified ARP messages, the attacker associates their own MAC address with the IP address of another device on the network. As a result, the network device sends its traffic to the attacker’s machine instead of the intended recipient. This can lead to network congestion, packet loss, and disruptions in network communication.
Both ARP spoofing and ARP cache poisoning can compromise the integrity and security of a network, potentially allowing unauthorized access, data theft, and malicious activities. Protecting against these problems often requires implementing security measures such as ARP inspection, MAC binding, network monitoring, and employing tools that detect and mitigate ARP-based attacks.
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