Forum Thread: Nmap Idle Scan and Spoof IP Difference

Hi guys,

I would like to ask what is the difference between nmap idle scan and spoof IP.

Assuming I have identified a zombie host as,
and my target as,

What is the difference in executing both commands as below:

Spoof IP: nmap -e eth1 -Pn -S

Idle scan: nmap -Pn -sI


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