Information, Computer and Network Security Terms Glossary and Dictionary

ARP Poisoning

Address Resolution Protocol (ARP) poisoning, also known as ARP spoofing or APR cache poisoning, is a MAC layer attack that can only be carried out when an attacker is connected to the same local network as the target machines, limiting its effectiveness only to networks connected with switches, hubs, and bridges; not routers. Most 802.11b access points act as transparent MAC layer bridges, which allow ARP packets to pass back and forth between the wired and wireless networks. This implementation choice for access points allows ARP cache poisoning attacks to be executed against systems that are located behind the access point.

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ARP Poisoning