[Snort-users] Help needed: Performance Check & Traffic Capture

David Lambert dlambert at ...4245...
Wed Jan 2 08:12:14 EST 2002


Thanks, that works fine. Does anyone know if this fix is why nessus supplies 
its own version of the libpcap libraries?

Dave.

On Tuesday 01 January 2002 09:50 pm, Phil Wood wrote:
> On Tue, Jan 01, 2002 at 04:55:06PM -0800, Erek Adams wrote:
> > On Tue, 1 Jan 2002, David Lambert wrote:
> > > Thanks for the pointer to this. Unfortunately when I tried this it gave
> > > me the following results. Any idea why the crazy first line? Everything
> > > else seems to work fine.
> >
> > None.  That's an odd one.  What OS, Version/Build of Snort and hardware
> > are you running this on?   Linux based?
> >
> > > =======================================================================
> > >======== Snort analyzed -235601920 out of 16777216 packets, dropping
> > > 252379136(1504.297%) packets
> >
> > [...snip...]
> >
> > If it's Linux based, check the archives from the snort-dev list at
> > http://marc.theaimsgroup.com/ for some patches provided by Phil Wood
> > <cpw at ...440...> to make libpcap + Linux 2.4(?) play nice.
>
> Hi, the pcap library is fixed at tcpdump.org.  Pull down the current
> library:
>
>   http://www.tcpdump.org:80/daily/libpcap-current.tar.gz
>
> It has the fix to pcap_stats.  It does not have the "turbo" patches
> which use a ring buffer.  I have that in a different tarball which
> I'm still not 100% sure about.  If you get the above working and
> would like to try something even more bizarre, drop me an email.
>
> Phil (cpw at ...440...)
>
> > Anyone else?
> >
> > -----
> > Erek Adams
> > Nifty-Type-Guy
> > TheAdamsFamily.Net
> >
> >
> >
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