Re: Snort-2.9.6.0 Packet Capturing

["praveen_recker ." <praveen_recker () sify com>]

Hi Nanda,

For Enterprise grade Routers/AP's you can use SAPN/TAP mode or Port
Mirroring to achieve your requirement.

AP which you are using might not support Port Mirroring. Just by enabling
Promiscous mode on the machine which is running Snort will not solve the
purpose, you should enable Promiscous mode on the Interface which ur Snort
machine is connected and which is difficult to do.

Hope this helps.

Best Regards,
Praveen Darshanam


On Sat, Mar 22, 2014 at 5:56 PM, Nanda Vardhan <nandu7ninja () gmail com>wrote:

> Then how to capture packets of all the devices that are connected to the
> network on which snort is running. Is there anyway to capture and alert
> based on snort rules. I didnt install tcpdump, Does it help any? So please
> help me to this problem..  If its not possible whats the use of running
> snort in IDS mode?
>
> On Friday, March 21, 2014, Joel Esler (jesler) <jesler () cisco com> wrote:
>
> >  You can't sniff packets of other devices?  Well, no, you can't do that.
> >  You need to sniff from the device the traffic is actually *on.*
> >
> >  --
> > *Joel Esler*
> > Open Source Manager
> > Threat Intelligence Team Lead
> > Vulnerability Research Team
> >
> >  On Mar 21, 2014, at 6:45 AM, Nanda Vardhan <nandu7ninja () gmail com>
> > wrote:
> >
> >  I am a newbie of Snort IDS. I installed Snort 2.9.6.0 on ubuntu. I want
> > to sniff packets from all the devices connected to wifi router and get
> > alerts based on some rules I defined. I manually setup NIC to promiscuous
> > mode. My problem is that I cannot sniff packets of other devices. Am
> > getting packet information of only laptop on which Snort is running.
> >
> >  I used following command:
> >
> > $ sudo snort -c  snort.conf -A console -i wlan0
> >
> >  Output:
> >            Preprocessor Object: SF_DNP3  Version 1.1  <Build 1>
> >            Preprocessor Object: SF_IMAP  Version 1.0  <Build 1>
> >            Preprocessor Object: SF_SIP  Version 1.1  <Build 1>
> >            Preprocessor Object: SF_DNS  Version 1.1  <Build 4>
> >            Preprocessor Object: SF_SSLPP  Version 1.1  <Build 4>
> > Commencing packet processing (pid=3312)
> >
> > ------------------------------------------------------------------------------
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> --
> Sent from Nanda's iPad
>
>
> ------------------------------------------------------------------------------
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> "Graph Databases" is the definitive new guide to graph databases and their
> applications. Written by three acclaimed leaders in the field,
> this first edition is now available. Download your free book today!
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------------------------------------------------------------------------------
Learn Graph Databases - Download FREE O'Reilly Book
"Graph Databases" is the definitive new guide to graph databases and their
applications. Written by three acclaimed leaders in the field,
this first edition is now available. Download your free book today!
http://p.sf.net/sfu/13534_NeoTech

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