Re: FW: Afpacket daq-2.0.1 snort

[Anshuman Anil Deshmukh <anshuman () cybage com>]

Hi Jaime,



Below mail was sent by me earlier, which got stuck due to some error in my mailbox and it went through after I cleaned 
up my mailbox. I would like to update this mail thread that I did got an answer from the vendor for configuring the NIC 
if the snort application crashes.



The vendor said that it can be done using these two different ways.

1. They have their API to control the NIC (niagara_util -k).

2. Call the system functions themselves. The source code is with the driver. They have examples under 
user_api/examples/module_kick.c under the drivers they have provided.



The vendor have specifically recommended using the 'kick' option. They said that whenever the snort application fails, 
the 'kick' can be configured to stop sending heartbeats by which the NIC will go to bypass because of the missed 
heartbeat.



Looking at the solution that vendor has provided, please let me know under which Gen exactly would my NIC come. Also 
please comment on the solution if it would be appropriate to use for an inline IPS solution OR you have any other 
recommendations.



Thank you.



Regards,

Anshuman



From: Jaime Nebrera [mailto:jnebrera () redborder org]
Sent: Wednesday, July 2, 2014 11:26 PM
To: Anshuman Anil Deshmukh
Cc: snort-users () lists sourceforge net
Subject: Re: [Snort-users] FW: Afpacket daq-2.0.1 snort



Hi Anshuman,

We don't know for that card in particular, but in general the technology has gone through various steps:

Gen 1.- Non software controlable. Bypass is enabled either due to power failure or missed watchdog

Gen 2.- Software controlable, but using a modified card driver. This in general is complex to maintain

Gen 3.- Software controlable, by specific bypass driver, letting the card controller driver untouched

We use another manufacturer cards (Silicom) and Gen 3 which in essence us to do whatever we want with them and keep 
card drivers updated through CLI orders. As for IM I can't advise on how they do but guess would be similar (but 
believe your card is old thus might be Gen 1 or 2)

Regards

El 02/07/2014 19:35, "Anshuman Anil Deshmukh" <anshuman () cybage com<mailto:anshuman () cybage com>> escribió:

Hi Juan,



We use this NIC 
http://www.interfacemasters.com/products/bypass-nics/niagara-32264-quad-port-copper-gigabit-ethernet-nic-with-bypass-server-adapter-card.html





Regards,

Anshuman



From: Juan Jesus Prieto [mailto:jjprieto () redborder org<mailto:jjprieto () redborder org>]
Sent: Tuesday, July 1, 2014 12:50 PM
To: snort-users () lists sourceforge net<mailto:snort-users () lists sourceforge net>
Subject: Re: [Snort-users] FW: Afpacket daq-2.0.1 snort



Hi Anshuman,

  Wich kind of bypass NIC have you (Vendor/model)?

El 30/06/14 20:35, Anshuman Anil Deshmukh escribió:

   Hi,



   If anybody has answer to my query, please reply back.





   Regards,

   Anshuman



   From: Anshuman Anil Deshmukh [mailto:anshuman () cybage com]
   Sent: Saturday, June 28, 2014 5:47 PM
   To: snort-users () lists sourceforge net<mailto:snort-users () lists sourceforge net>
   Subject: [Snort-users] FW: Afpacket daq-2.0.1 snort



   Hi,



   I see that below question was never replied on this list. I have same question. In my case only difference is it is 
AFPACKET on a quad port NIC.



   I request this list to reply back at the earliest.



   Thank you.





   Regards,

   Anshuman



   From: Lawrence R. Hughes,Sr. [mailto:lhughes () safemedia com]
   Sent: Wednesday, September 4, 2013 12:35 AM
   To: snort-users () lists sourceforge net<mailto:snort-users () lists sourceforge net>
   Subject: [Snort-users] Afpacket daq-2.0.1 snort



   hi,



   If I use the Daq in Afpacket mode (inline) with copper bypass DUAL NIC (eth0:eth1) how would I put the DUAL-NIC in 
copper Bypass Mode when snort quits running?



   Many Thanks,

   Larry






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