I explained ARP poisoning or ARP spoofing and a few people contacted me asking if it is similar to Mac spoofing.
My article on ARP spoofing or poisoning
https://www.networkersworld.com/post/arp-poisoning-or-arp-spoofing Let's talk about Mac spoofing. First, we need to understand what a Mac address table is.
A MAC address table is also known as a CAM (Content Addressable Memory) table. It stores the associations between mac addresses and their corresponding network interfaces on a switch. By looking at the source mac addresses of incoming frames, a switch will automatically learn the mac addresses and fill the mac address table. As soon as a switch receives a frame from a device, it reads the source mac address and adds it to its mac table. The source mac address and interface are included in this entry .
Mac spoofing is usually limited to broadcast domains. ARP spoofing and MAC spoofing seem different from a general perspective, but their ultimate goal is to replace the identity of a device.
An attacker uses MAC spoofing or mac impersonation to hide their identity and bypass security measures by changing their device's mac address to match the mac address of a legitimate device. Through MAC spoofing attacks, sensitive information is stolen and other malicious activities are carried out. It is important to note that mac spoofing is usually not effective across multiple network segments or subnets because switches and routers are typically configured to forward traffic based on the destination mac address and would not forward traffic to devices with mac addresses from different segments or subnets. #network #networkengineer #cisco #frankfurt
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