Nmap Development mailing list archives

Re: Nmap 6.01 not working on Windows 7


From: Jake Moe <jakesaddress () gmail com>
Date: Wed, 4 Jul 2012 08:42:31 +1000

On 4 July 2012 00:13, Rob Nicholls <robert () robnicholls co uk> wrote:

-----Original Message-----
From: nmap-dev-bounces () insecure org [mailto:nmap-dev-
bounces () insecure org] On Behalf Of Jake Moe
Sent: 03 July 2012 06:37
To: nmap-dev () insecure org
Subject: Nmap 6.01 not working on Windows 7

If I uninstall v6.01 and reinstall v5.51, it works again.  Reverse the
process and
it doesn't work without --unprivilged and even then, as I said, it works
much
slower.

It wouldn't hurt to send the output from --iflist (inline is fine), but I
wouldn't be surprised if this is caused by some of the interface/route
issues that are affecting a number of other people. It appeared to work
fine
up until 5.51 (I think 5.51SVN-dnet-pcap2 in March 2011 was fine too), but
I
think the introduction of IPv6 support with 5.52 has broken something. For
some reason my Nmap 6 thinks that all routes should use eth2, even for
hosts
on the local subnet for eth1. Djalal was looking into fixing this on Linux,
but his patch seems to break the routes completely on Windows (to be fair,
I
wasn't expecting this to work as he did say it wouldn't). You might be able
to get Nmap 6 to work correctly by forcing it to use the correct interface
(e.g. "-e eth1"), assuming this is a routing issue and not some other issue
- if forcing the interface works, do let us know! Using --unprivileged will
force Nmap to use the OS to send it (instead of using WinPcap), and Windows
will know the correct interface and route to use, which is probably why it
works.

Rob


Using -e <interface> works a treat.  I assume then that this is your known
problem.  Thanks for the help.

Jake Moe
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