On Fri, 17 Sep 2004, net sec wrote:
> Has anyone else had the experience that when scanning XP-SP2 systems, the
> portscan just seems to hang and will not finish? I assume this is due to
> the newly enabled 'Firewall' but I am wondering why nessus doesn't just find
> the ports closed or filtered and move on?
Because it has to wait for a timeout on each port. And 2second timeouts
times 65535 ports makes for 36 hours. Even with 20 port scanned parallel
this takes quie a while.
Hugo.
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