[Winpcap-users] Ping works only when ethereal is ON

[Gianluca Varenni]

Out of curiosity, were you using some home made build process using Visual 
Studio, instead of using the build environment provided by the WDK/DDK?

Have a nice day
GV



----- Original Message ----- 
From: "Sunil" <sunil.d at redpinesignals.com>
To: <winpcap-users at winpcap.org>
Sent: Monday, July 07, 2008 10:36 PM
Subject: Re: [Winpcap-users] Ping works only when ethereal is ON


> Hi,
> Thanks for the mail.
> The issue was something to do with the build environment with which the 
> driver was compiled in the WINDOWS environment.We have changed the build 
> environment(built with a working one) and we could see ICMP echoes when 
> the PROMISCUOUS mode is turned OFF.
> We did not go in to the details of build environment.
> Regards,
> Sunil
>
> Gianluca Varenni wrote:
>> My bet is that your miniport is not managing 
>> OID_GEN_CURRENT_PACKET_FILTER correctly. When you start ethereal or any 
>> other winpcap based application and you use it in promiscuous mode, the 
>> WinPcap protocol driver sets the PACKET_FILTER to 
>> NDIS_PACKET_TYPE_PROMISCUOUS. Otherwise it uses 
>> NDIS_PACKET_TYPE_ALL_LOCAL.
>>
>> Do all the ICMP echo requests get "discarded" by the TCP/IP stack when 
>> ethereal is off, or just some of them?
>>
>> Have a nice day
>> GV
>>
>> ----- Original Message ----- From: "Sunil Dutt" 
>> <sunil.d at redpinesignals.com>
>> To: <winpcap-users at winpcap.org>
>> Sent: Wednesday, July 02, 2008 6:11 AM
>> Subject: [Winpcap-users] Ping works only when ethereal is ON
>>
>>
>>> Hi,
>>>  We are working on  USB based WinXP network WLAN station driver.
>>> We are facing an issue with the ICMP(the association to the AP is done).
>>> We do a ping request to the AP and also get the reply from the AP.We 
>>> also indicate the received reply to the TCP/IP stack but the successive 
>>> pings do not take place.
>>> The same happens when the ethereal(packet sniffer ) is on.
>>> When we close the sniffer the successive pings do not happen.
>>> We could not find any relation between indication of the received packet 
>>> to the TCP/IP stack and the ethereal.
>>> The firewall in the case of WINDOWS is TURNED OFF.
>>> Can anyone comment on this.
>>>
>>> Thanks in Advance
>>> sunil
>>>
>>> _______________________________________________
>>> Winpcap-users mailing list
>>> Winpcap-users at winpcap.org
>>> https://www.winpcap.org/mailman/listinfo/winpcap-users
>>
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>>
>
>
>
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