please read this
www.ntop.org/blog/?p=56
this might help you.
Regards, Yuri

On 04/28/2010 05:06 PM, Tom??s Heredia wrote:
> Hi!
> Kinda found something: if using transparent mode 0 in the pf_ring
> module, both directions are being captured. In this mode, I have a HUGE
> packet loss rate. When setting transparent mode to 1, packet loss
> reaches 0, but I can't capture TX traffic. Is there any thing I'm missing?
> 
> Thanks!!
> 
> El 28/04/2010 04:21 a.m., fly_2u escribi??:
>> Just a reference:
>>
>> In the PF_RING source code, there is one line:
>> *pfring_toggle_filtering_policy*(pd, 0);  /**Default to drop* */
>> Maybe you should make some changes for this sentence.
>> ??2010-04-28 05:57:28??"Tom??s Heredia" <[email protected]> ??????
>> >Hi all!
>> >
>> >I'm trying to capture TX packets with PF_RING. Indeed, Snort 2.8.4.1,
>> >PF_RING 4.2.0 and igb driver 2.0.6
>> >Snort doesn't get TX packets... nor does pfcount or tcpdump (pf_ring
>> >aware libpcap).
>> >Here's /proc/net/pf_ring/info:
>> >------------------------------------------------
>> >PF_RING Version     : 4.2.0 ($Revision: $)
>> >Ring slots          : 32768
>> >Slot version        : 10
>> >Capture TX          : Yes [RX+TX]
>> >IP Defragment       : No
>> >Transparent mode    : Yes
>> >Total rings         : 1
>> >Total plugins       : 0
>> >---------------------------------
>> >
>> >And /proc/net/pf_ring/xxxx-eth0.xx:
>> >-------------------------------------
>> >Bound Device   : eth0
>> >Slot Version   : 10 [4.2.0]
>> >Active         : 1
>> >Sampling Rate  : 1
>> >Appl. Name     : <unknown>
>> >IP Defragment  : No
>> >BPF Filtering  : Enabled
>> ># Filt. Rules  : 0
>> >Cluster Id     : 0
>> >Channel Id     : 255
>> >Tot Slots      : 32770
>> >Bucket Len     : 1514
>> >Slot Len       : 1600 [bucket+header]
>> >Tot Memory     : 52432896
>> >Tot Packets    : 4110275
>> >Tot Pkt Lost   : 0
>> >Tot Insert     : 4110275
>> >Tot Read       : 4110275
>> >Tot Fwd Ok     : 0
>> >Tot Fwd Errors : 0
>> >Num Free Slots : 32770
>> >--------------------------------------
>> >
>> >Any clues?
>> >
>> >Thanks!
>> >
>> >
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>>   
>>
>>
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> 
> 
> 
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-- 
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Yuri Francalacci
E-Mail: [email protected]   Internet: http://www.ntop.org/
*** Esse Quam Videri -- To Be, Rather Than To Seem ***
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