[Winpcap-users] Lost packets on load

[Suporte Netcount]

Won't packetizer call ::SetHwFilter and change your mode even if it doesn't 
capture? This might affect load/filtering...

----- Original Message ----- 
From: "Loris Degioanni" <loris.degioanni at gmail.com>
To: <winpcap-users at winpcap.org>
Sent: Monday, September 26, 2005 6:42 PM
Subject: Re: [Winpcap-users] Lost packets on load


> This is very weird.
> Are you using wpcap.dll or packet.dll? Did you start from the examples in 
> the developer's pack? If yes, do they have the same problem? Unless 
> there's some macroscopic bug that we never spotted, your application 
> should not interact at all with other processes using winpcap.
>
> Loris
>
>
> Pelles, Noam wrote:
>>  Hi,
>>  I am writing a network sniffer that uses WinPCap on Win 2000\2003 
>> servers.
>> I have a strange problem which bothers me :
>>  I am filtering packets according to their IP's and using more than one 
>> client for that.
>> When I decrease network load ( sending packets which are NOT in one of my 
>> filters - I.e not meant to be captured)
>> I start loosing packets that should be captured.
>>  The lost of packets *STOP* when I open the Packetyzer  application ( 
>> which also uses WinPCap).
>> The CPU usage of my application decrease dramatically , but it is no 
>> longer loose packets !! ( even if the Packetyzer does not capture
>> packets at all..).
>> I have tried to download the source code of packetyzer , but could not 
>> succeed ( any one have this source ??).
>>  Does any one know what can cause this behavior ? what settings can 
>> effect other application that uses WinPCap( beside mode) ?
>> Any one familiar with settings that can cause this problem ??
>>  Thanks
>>  ** 
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