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NMap Scan Through VPN?
From: Alan Jones <alan () ajsquared us>
Date: Sun, 12 Mar 2006 15:03:04 -0600

I recently was thinking I should send in some equipment and version info
on some of network devices at the office that NMap did not recognize. 
Due to timing I never got around to doing any checks.  So this weekend I
decided to experiment on a few things.

I loaded the latest NMap and connected from home over the VPN back to
the office.  I knew from past experience I could ping, trace, and load
various programs etc over the VPN.  So I decided to scan a few boxes
just to see  what would happen next.

Interestingly enough Nmap did not even see the equipment.

I was surprised....  I figured Nmap might complain about something
father along but not that it could not find the equipment.

This was using the Microsoft Windows VPN software.

Anyone else done any scanning over a VPN?  I am sure there are enough
variables that it would not be endorsed, but just curious if this issue
was just our network or something bigger.  I did not run any debug type
checks.... at this point just wanted to get reaction and ides from others.


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