Rookie question about differences between -S and -sI option

From: Mark Fosseth (brundleflynet@hotmail.com)
Date: Mon Feb 13 2006 - 13:20:41 EST


Hi All,

In terms of probing IPs which is the difference between scanning an host
spoofing the source IP via -S option or scanning through an idle scan via
the -sI option beside perspetive of course ?

I performed a normal -sS scan and later I issued the same command and option
using also -S but despiting the fact the command started correctly I had no
results even if the spoofed IP was online. Do you have an idea what I am
missing ?

Thanks

Yashin

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