Nmap Development mailing list archives

Re: zenmap doesn't scan my user mode linux image


From: Toralf Förster <toralf.foerster () gmx de>
Date: Wed, 10 Mar 2010 18:41:41 +0100


David Fifield wrote at 21:04:02
On Tue, Mar 09, 2010 at 08:56:59PM +0100, Toralf Förster wrote:
David Fifield wrote at 17:41:12

I think this is the same problem as

"Nmap bug - Doesn't folow static route"
http://seclists.org/nmap-dev/2010/q1/685

You must be scanning 192.168.0.253. That address happens to be inside
the netmask for the eth0 device, so Nmap is choosing that device,
without considering the more specific entry for tap0 that comes later.
There's no solution for it yet. As a workaround, try changing the IP
address of the User Mode Linux to something outside of the netmask of
eth0, like 192.168.1.253.

but it is a regression at least at at my Gentoo system either between
net- analyzer/nmap-5.00-r2 and net-analyzer/nmap-5.21.
Or something other at my notebook changed, b/c I'm pretty sure that it
worked fine before (b/c I use the UML system since years to play with
wireshark and the protocols of sendmail, courier, apache, cups and
friends).

It would be very helpful if you could retest with version 5.00 to
confirm that. It will be much easier to fix if you can find a version
that definitely works.

David Fifield


Well,

using "-e tap0" now it works - but again, I'm wondering if glibc or something 
else changed...

-- 
MfG/Sincerely
Toralf Förster

pgp finger print: 7B1A 07F4 EC82 0F90 D4C2 8936 872A E508 7DB6 9DA3

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