[Kochegar]

Удобная и бесплатная сабжевая прога:
Technitium MAC Address Changer v4.5

Цитата: Allows you to change Media Access Control (MAC) Address of your Network Interface Card (NIC) or Wireless Network Card (WiFi), irrespective of the NIC's drivers or its manufacturer. Current user-friendly version 4.5 has many new features which allows you to change IP Address, Gateway, DNS Servers, enable/disable DHCP in one click and many more features.

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