Spoofing MAC address

MAC Spoofing is a technique of changing an assigned Media Access Control (MAC) address of a networked device to a different one. The changing of the assigned MAC address may allow the bypassing of access control lists on servers or routers, either hiding a computer on a network or allowing it to impersonate another computer.

Usually some cable ISP operators work on this concept of spoofing the MAC address of Ethernet cards either in the router
or with the ISP. Since cable ISP's don't use Usernames, Passwords.


MAC spoofing is the activity of altering the MAC address of a network card.