Howdy,

> I don't know any way to do this with existing tools, but it would
> presumably not be a particularly difficult task for a c programmer to
> modify tcpdump for this purpose.

Know any good ones? :)

> Depending how much speed you really need, this could also be done in perl
> using Net::Pcap.

Nope - it has to be done in C/C++.. no perl on the platform. :\

> snort might also be of interest.  I'm not particularly familiar with it,
> but it seems like the sort of thing I'd want it to do.

That's not a bad idea - I'll have a poke around snort.. hmm.. but I think 
it uses libpcap as well..

danke..

//umar.

> 
> tcpflow splits trafic by tcp stream.  Not sure if that's useful to you.
> 
> 
> Andrew
> 
> 
> 
> On Mon, 23 Jun 2003, Umar Goldeli wrote:
> 
> > Date: Mon, 23 Jun 2003 20:01:17 +1000 (EST)
> > From: Umar Goldeli <[EMAIL PROTECTED]>
> > To: [EMAIL PROTECTED]
> > Subject: [SLUG] Tcpdump - multiple filters to multiple files?
> >
> > Howdy,
> >
> > How are we all? :)
> >
> > Here's an interesting question that I'm looking for a solution to - quite
> > simply, is there a way to run tcpdump to capture different ip addresses
> > and output them to different files without running multiple copies of
> > tcpdump?
> >
> > Specifically - something along these lines:
> >
> > * A single tcpdump process captures packets with source or dest IP:
> > 1.2.3.4 and outputs the results to 1.2.3.4.log whilst at the same time
> > doing the same for 2.3.4.5 and 2.3.4.5.log respectively.
> >
> > Ideally - this scales to the 100 mark or so.. and FAST.
> >
> > I'm pretty sure this can't be done with tcpdump/libpcap - but is there
> > another utility?
> >
> > If none exists - how hard would it be to code such a beast? Also - could
> > it be coded portably so it could compile/run on Solaris etc?
> >
> > Looking forward to hearing your replies...
> >
> > Thanks in advance. :)
> >
> > Cheers,
> > Umar.
> >
> >
> 
> --
> 
> No added Sugar.  Not tested on animals.  If irritation occurs,
> discontinue use.
> 
> -------------------------------------------------------------------
> Andrew McNaughton           In Sydney
>                             Working on a Product Recommender System
> [EMAIL PROTECTED]
> Mobile: +61 422 753 792     http://staff.scoop.co.nz/andrew/cv.doc
> 
> 

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