(n.) Also referred to as ARP poison routing (APR) or ARP cache poisoning, a method of attacking an Ethernet LAN by updating the target computer’s ARP cache with both a forged ARP request and reply packets in an effort to change the Layer 2 Ethernet MAC address (i.e., the address of the network card) to one that the attacker can monitor. Because the ARP replies have been forged, the target computer sends frames that were meant for the original destination to the attacker’s computer first so the frames can be read. A successful APR attempt is invisible to the user.
Webopedia is an online information technology and computer science resource for IT professionals, students, and educators. Webopedia focuses on connecting researchers with IT resources that are most helpful for them. Webopedia resources cover technology definitions, educational guides, and software reviews that are accessible to all researchers regardless of technical background.
Advertisers
Advertise with TechnologyAdvice on Webopedia and our other IT-focused platforms.
Menu
Our Brands
Property of TechnologyAdvice.
© 2022 TechnologyAdvice. All Rights Reserved
Advertiser Disclosure: Some of the products that appear on this site are from companies from which TechnologyAdvice receives compensation. This compensation may impact how and where products appear on this site including, for example, the order in which they appear. TechnologyAdvice does not include all companies or all types of products available in the marketplace.