Error changing Mac address: SIOCSIFHWADDR: Cannot assign requested address

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I am trying to change my Mac Address but I am facing a problem. When I run the command:

ifconfig eth0 hw ether 11:22:33:44:55:66

I am getting the following error:

SIOCSIFHWADDR: Cannot assign requested address
Feb 6 in Cyber Security & Ethical Hacking by Roshan
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I can see that you are trying the set the Mac address to 11:22:33:44:55:66. And that's the problem. You can only set unicast address and unicast address has to have the first octet as an even value. Try changing the value of the first octet to even (ex: 12:22:33:44:55:66) and it should work.

answered Feb 6 by Omkar
• 65,810 points

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