RE: NMAP VxWorks Issue?

["Hans Nilsson" <hasse_gg () ftml net>]

Well either way, if a couple of Nmap scans can crash a system there's
obviously something wrong with it.


On Wed, 14 Feb 2007 17:09:44 -0500, "Becker, Matt" <MBecker () ciena com>
said:
> Hi there - I managed the Tier III support for Ciena's CoreSwitching
> Platform and am having a customer issue with NMAP (4.2.0.7) and VxWorks
> (5.3.1).  When we run the following command:
>  
>  /nmap  -sT -O -p 21,22,23,137,138,139,2001,6000 ip-address
>  
> Infrequently, but very recreatable in our lab, the execution of the NMAP
> command leaves the VxWorks FTP connection open with a CLOSE_WAIT status,
> even though the NMAP is completed.  Eventually if we run the command
> enough, we can exhaust up enough resources and lock up our connecitity.
>  
> Interesting when we run the command without the -O option, we do not run
> into this issue.  Since the FTP protocol is on the VxWorks stack, we
> feel confident that it is not our code causing the issue.
>  
> Is this something that has been seen before, and do you have any
> suggestions?
>  
> Thanks,
> Matt
>  
> Matt Becker
> Ciena Corp
> Director, P&T
> 678-867-3616
> mbecker () ciena com
>  
>
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-- 
  Hans Nilsson
  hasse_gg () ftml net

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