Snort mailing list archives

RE: no packets logged on wireless NIC using WinPcap 3.0, winsnort


From: "Adam Kliarsky" <360air () comcast net>
Date: Sun, 13 Feb 2005 22:49:40 -0800

So let me clarify, you have used Windump, but not successfully w/ wireless?
When you run windump -D do you see the wireless interface?
If so, when you run windump -i 1 (assuming 1 is the listed wireles nic) do
you see any traffic?
What version of winpcap are you using? That might be your problem
 
Adam

  _____  

From: snort-users-admin () lists sourceforge net
[mailto:snort-users-admin () lists sourceforge net] On Behalf Of Ben van der
Merwe
Sent: Sunday, February 13, 2005 10:09 PM
To: snort-users () lists sourceforge net
Subject: [Snort-users] no packets logged on wireless NIC using WinPcap 3.0,
winsnort


[Is this a 'wireless' limitation or a WinPCap/win32 limitation. Is 'snort
wireless' ok on linux ???]
Original message:
 
Everything seems ok when I do a 'snort -W':
Interface Device  Description
-------------------------------------------
1  \Device\NPF_{24284523-9129-4F0E-83A3-FB0731F53D25} (D-Link AirPlus Xtreme
G DWL-G520 Adapter (Microsoft's Packet Scheduler) )
 
(although I am sure that I also had another eth interface listed when doing
a similar command in windump)
 
When I try to log packets with ' snort -b -v -l c:\Snort\log -i 1'
I get an empty log file (which is deleted as soon as I stop snort).
I have used snort on linux for a while now, but I may be missing something
obvious. I will continue scrutinizing README.wireless, README.win32 and the
faq in case I am doing something stupid.
I have used tcpdump (windump) for a while, but the wireless cards were not
really supported.
snort (and winsnort) seem to have good support for wireless cards - is this
due to an improvement in WinPcap ?
If this is true tcpdump should also have better support for wireless NIC's.
Finally, what is meant by a wirleless card that is in "RFMON" mode ? Is this
not the default setting ? (How can I change this ?)
 
Some additional info on my installation:
1) snort version: Version 2.3.0RC2-ODBC-MySQL-FlexRESP-WIN32 (Build 9)
2) WinPcap 3.0
3) Windows XP Home Service Pack 2 (with automatic updates)
(I also had to change the permissions on my c:\snort directories before the
empty log file was created.)
 
Thank you.
Ben
 

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