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Recently I had a problem, each time using sudo for nmap with --spoof-mac gives me an output that the host is down, which actually is not right because I know it is up.

Why is that happening?

Giving here an example to what happened when I sent this command on the terminal:

$ sudo nmap --spoof-mac Apple  192.168.1.1 -Pn
Host discovery disabled (-Pn). All addresses will be marked 'up' and scan times will be slower.
Starting Nmap 7.91 ( https://nmap.org ) at 2021-01-02 05:12 CST
Spoofing MAC address 00:03:93:03:E5:58 (Apple)
Nmap done: 1 IP address (0 hosts up) scanned in 1.68 seconds
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    All it is saying is that it can not prove that it is up (no services found). What services are you expecting to be running on the address? Commented Jan 2, 2021 at 11:32
  • If you drop --sppof-mac, you get a different output? Commented Jan 2, 2021 at 13:08
  • The bigger question is, what do you expect in particular by using --spoof-mac ? Commented Jan 2, 2021 at 14:30
  • On superuser superuser.com/questions/887887/… Commented Jan 2, 2021 at 15:39

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