You may have to play with the transparent_mode value while loading the module.
furthermore check under the proc filesystem if the program using pf_ring is 
correctly registered on pf_ring 
Yuri
On Oct 11, 2010, at 6:32 AM, Ed Nabeshin wrote:

> Hi,
> 
> I hope this post is in the right spot. Please let me know otherwise.
> I have been trying to get PF_RING working in CentOS 5.2
> This is the instructions I followed:
> 
> http://gunjan-bansal.blogspot.com/2010/06/installation-guide-for-pfring.html
> 
> Afterwards, I re-compiled nprobe and run it.
> However, I did not see PF_RING related messages in /var/log/messages
> It just say "device eth6 entered promiscuous mode" when I turn on nprobe.
> 
> From looking at other sites, it seems that there should be a message that 
> looks like "RING: succesfully allocated 1024 KB".
> There seems to be no change in performance either. The number of dropped 
> packets are about the same compared to before installing PF_RING.
> 
> Are the instructions from the link above correct?
> If so, any suggestions on where to start looking for where the problem lies 
> is much appreciated.
> 
> Thank you for your time.
> 
> Ed
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