Re: Desired improvements in Nmap performance?

["sara fink" <sara.fink () gmail com>]

On Mon, Dec 1, 2008 at 5:44 PM, Rob Nicholls <
robert () everythingeverything co uk> wrote:

> > My complaints are about long time for UDP scan for large networks.
>
> Do you mean "significantly longer than expected" (e.g. a lot more than 18
> hours to scan all UDP ports on a host), or just "it took a long time"? I'm
> assuming the former, as UDP scans will often take a long time when you're
> scanning hosts that "took RFC 1812 section 4.3.2.8 to heart and limit ICMP
> error message rate" (to quote an old Nmap page). Linux and Solaris based
> hosts will typically take a long time to UDP scan when using default (no
> -T options specified) Nmap settings.


I mean scanning one or 2 udp ports on 256^2 hosts. Sometimes I run it with
-T flag and sometimes without. Usually it takes a long time. But not over 18
hours. If you need timing, I can run it again and send you the results how
long it took.



> Rob

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