[Winpcap-users] why WinPcap is not capturing packets form mywireless PC card - Thanks Gianluca

[vimal raj]

Hi GV,

Thanks GV, I followed your instructions and it worked.

 

In WinPcap documentation it is given that the #define
PCAP_OPENFLAG_PROMISCUOUS of
<http://winpcap.mirror.ethereal.com/301a/docs/remote-ext_8h-source.html>
remote-ext.h  is deciding our device should be in promiscuous mode or not.
But in my application in pcap_open_live () when I gave 0 and DISABLED
PROMISCOUS MODE,  my program run and I got output. 

 

Your reply says that while using WinPcap our application should disable
promiscuous mode. But most network sniffers work in promiscuous mode only.
So I am confused with this. Please clarify

 

Thanks in advance,

 

vimal

 

  _____  

From: winpcap-users-bounces at winpcap.org
[mailto:winpcap-users-bounces at winpcap.org] On Behalf Of Gianluca Varenni
Sent: Monday, June 26, 2006 9:00 PM
To: winpcap-users at winpcap.org
Subject: Re: [Winpcap-users] why WinPcap is not capturing packets
formywireless PC card

 

As explained on this FAQ

 

http://www.winpcap.org/misc/faq.htm#Q-16

 

due to the limits of the Windows OS, you can have problems capturing from
Wireless adapters: some of them don't work at all, some of them work only if
promiscuous mode is disabled. 

 

Have a nice day

GV

 

----- Original Message ----- 

From: vimal <mailto:vimal.raj at cranessoftware.com>  raj 

To: winpcap-users at winpcap.org 

Sent: Monday, June 26, 2006 2:43 AM

Subject: [Winpcap-users] why WinPcap is not capturing packets for mywireless
PC card

 

Hi,

 

I tried to capture wireless packets using the basic_dump example. I could
capture Ethernet packet. Even though it is detecting my wireless driver it
is not displaying any result.

 

I got this result when I tried with a NETGEAR WAG511 PC card.

 

1. \Device\NPF_GenericDialupAdapter (Generic dialup adapter)

2. \Device\NPF_{71FFDFA2-557E-48C7-AE0E-F7F046395F27} (NETGEAR WAG511
802.11a/b/

g Dual Band Wireless PC Card)

3. \Device\NPF_{345D2B1C-EAEB-437B-AB9A-D848EAEF7DEA} (NDIS 5.0 driver

                                                        )

Enter the interface number (1-3):2

 

listening on NETGEAR WAG511 802.11a/b/g Dual Band Wireless PC Card...

 

how to capture data from a wireless card?

 

Regards,

vimal

 


  _____  


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