We all are familiar with IP addresses, but what about MAC address? It's a unique identifier of the network interface card (NIC) present in the computer system. MAC address is composed of 6 hexadecimal numbers (e.g 2E-AA-45-B1-7F-1E). Every NIC has unique address that identifies it from all other NIC's that have produced till date on this planet. Sometimes, systems in the network are given restrictive access to resources on the basis of their IP's or MAC addresses. How to change the MAC address and bypass the filters?
During manufacturing, the unique ID (MAC address) is hard coded on the card and cannot be changed. But we can make such changes that the operating system fetches a different address leaving the real address behind the curtains. To change the MAC address follow this simple procedure.
1. Open your netowrk interface card's properties window. Choose Client for Microsoft Networks.
2. Click Configure in Windows 2000 Professional. If you are using Windows XP, choose Advanced tab.
3. Choose Network Address property from the list.
4. By default you will find Not Present optioned checked. Choose the Value option and type in a new MAC address in the format (1E224EA72F88), excluding the dashes as shown earlier. Click ok and you are done.
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