On 8/7/06, Roy S. Rapoport <[EMAIL PROTECTED]> wrote:
> On Mon, Aug 07, 2006 at 06:25:30PM -0700, Aaron Turner wrote:
> > Anyways, I'm not even going to try to explain how beta7 works... code
> > has changed so much since then it's not even worth it.  Unfortunately
> > right now, L2 rewriting isn't as nice as it should be- meaning there's
> > nothing which changes the DLT in the pcap file to the new
> > encapsulation type.
>
> I'm not sure I care, to be honest :)

Uh, then one of us is really confused.  You told tcprewrite to change
the source and destination MAC addresses in your source pcap (in.pcap)
which is in DLT_C_HDLC encapsulation.  The thing is that DLT_C_HDLC
encapsulation has no MAC addresses (source or destination).  Hence,
when I saw you setting those via tcprewrite, I assumed you were trying
to change the DLT to ethernet (DLT_EN10MB).

> I'm not tryint to change the encapsulation type -- I simply want to
> preserve the DNS packet payload.  What happens right now is that when I
> tcprewrite, I lose everything but the HDLC information.  Is that normal?
> :)

If you're trying to add/change MAC addresses for HDLC, then yeah.  Bad
things are gonna happen and tcprewrite is more then happy to let you
shoot yourself in the foot.

> > Anyways, it's on my list of things to do as part of 3.0.RC1.  Maybe I
> > can slip it into beta11 tonight... I'll take a look and see.
>
> Thanks!

FYI, in response to your other email (which I assumed you wanted
DLT_EN10MB) tcpreplay has all the editing builtin.  However, if you
want to keep your HDLC encap, then nevermind. :)

-- 
Aaron Turner
http://synfin.net/

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