Evani
if you run snort in ips mode (for instance I usually use --daq pfring 
--daq-mode inline -i ethX:ethY), the pfring-daq
will not forward packets when snort returns a negative verdict, I do not know 
what you mean with “fails to drop”.

Alfredo

> On 23 Sep 2015, at 14:12, Evani Sitaram <[email protected]> wrote:
> 
> Hi Alfredo,
>     Sorry for the trouble ,As per your suggestion i tired to configure 
> daq_pfring (daq_pfring.so and daq_pfring.la <http://daq_pfring.la/>) and 
> snort IPS mode i was only able to capture packets but snort fails to drop the 
> packets inline.
> 
> Command for running Snort in IPS mode (daq_pfring) :
> 
> snort --daq-dir=/usr/local/lib/daq --daq pfring  -i ethX:ethY -e -Q
> 
> Thanks And Regards,
> Evani Ram
> 
> 
> 
> 
> On Wed, Sep 23, 2015 at 3:39 PM, Alfredo Cardigliano <[email protected] 
> <mailto:[email protected]>> wrote:
> Hi Evani
> as I said just use our daq in ips mode.
> 
> Alfredo
> 
>> On 23 Sep 2015, at 12:01, Evani Sitaram <[email protected] 
>> <mailto:[email protected]>> wrote:
>> 
>> Hello Alfredo,
>>     Thank you for the timely reply, I am able to drop the packets using DAQ 
>> module (NFQ) with Snort IPS . For example , if i want to block/drop traffic 
>> to a site (facebook , youtube ,etc) i am able to do it with DAQ(NFQ) 
>> module.Now, is there any possibility to drop  packets with pf_ring  along 
>> with Snort IPS.
>> 
>> 
>> lspci | grep Eth
>> 
>> 01:00.0 Ethernet controller: Intel Corporation 82571EB Gigabit Ethernet 
>> Controller (rev 06)
>> 01:00.1 Ethernet controller: Intel Corporation 82571EB Gigabit Ethernet 
>> Controller (rev 06)
>> 02:00.0 Ethernet controller: Intel Corporation 82571EB Gigabit Ethernet 
>> Controller (rev 06)
>> 02:00.1 Ethernet controller: Intel Corporation 82571EB Gigabit Ethernet 
>> Controller (rev 06)
>> 04:00.0 Ethernet controller: Qualcomm Atheros Killer E2200 Gigabit Ethernet 
>> Controller (rev 13) ( I am not using this last Ethernet Controller)
>> 
>> On Wed, Sep 23, 2015 at 1:33 PM, Alfredo Cardigliano <[email protected] 
>> <mailto:[email protected]>> wrote:
>> 
>>> On 23 Sep 2015, at 06:54, Evani Sitaram <[email protected] 
>>> <mailto:[email protected]>> wrote:
>>> 
>>> Hi,
>>>     i am Evani Ram,i am working for my final year project and i am new to 
>>> pf_ring and snort , i have a couple of queries regarding pf_ring.
>>> 
>>> 1)  Firstly, is it possible to drop packets using pf_ring ? if yes, how to 
>>> configure pf_ring  in order to drop packets. (alert is working in pf_ring)
>>> 
>>> i am using this command to drop the packets but its only  capture the 
>>> packets and logging. i am using pf_ring aware driver.
>>> 
>>> Command :
>>>  /snort/bin/snort -Q -c /snort/etc/snort.conf -d --treat-drop-as-alert 
>>> --daq pfring --daq-dir /pfring/lib/daq -l /logs -i eth0:eth1 &
>> 
>> Do you mean you want to use it inline dropping packets? You just need to run 
>> snort in IPS mode using our DAQ module, please take a look at the README
>> 
>>> 2) Secondly, what is the hardware architecture supported for using pf_ring 
>>> and can you suggest minimum required configuration for dropping packets.
>> 
>> With standard drivers you can use any NIC, almost all Intel NICs are also 
>> supported in Zero-Copy mode for line-rate.
>> 
>>> ( i am using using Intel PRO /1000 PT DUAL PORT NiC card for traffic flow)
>> 
>> Can I see "lspci | grep Eth"?
>> 
>> Regards
>> Alfredo
>> 
>>> 
>>> Thanks And Regards,
>>> Evani Ram.
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