On Wed, Aug 16, 2006 at 06:57:59PM -0700, Aaron Turner wrote:
> Well this just might work. First you'll need to grab the 2.3.5 source
> code since was easier to make this work off the top of my head. Then
> apply the attached patch. The options are totally different (also
> there's no tcprewrite) but something like this should work:
>
> ./tcpreplay -i en0 -I $DMAC -k $SMAC -J $SMAC -K $DMAC -c cachefile -w
> out.pcap \
> ~/Desktop/in.pcap
>
> You may need to re-run tcpprep w/ 2.3.5 if it complains about cache
> file versions being incompatible. If you need to use this for
> something other then HDLC -> Ethernet, you'll need to edit tcpreplay.c
> and change the default value for l2len to be the length of that L2
> header. I've already changed it from ethernet to 4 bytes for HDLC.
>
> Hopefully that get's the job done... if not, it'll prolly be a bit.
Aaron, thanks for the attempted help. It almost entirely worked :)
Here's what I did. All were with 2.3.5, and I used your patch, which was
applied successfully:
$i is the pcap file
A) tcpprep -a -n server -i $i -o ${i}.cache
B) tcpreplay -i eth0 -j eth0 -I $DMAC -k $SMAC -J $SMAC -K $DMAC -c ${i}.cache
-w ${i}.rewritten.pcap ${i}
This chugged and chugged, and eventually ended. When I opened the file
in ethereal, however,
A) MAC addresses were all 0s; and
B) all the DNS payload shows up as "[Malformed Packet: DNS]"
(A) I could probably live with, because once the transformation to
ethernet was done, I could probably use tcprewrite to rewrite the MAC
addresses. (B) is sort of bad :)
I know you're busy, so I'm not expecting a resolution anytime soon, but I
figured I'd mention :)
-roy
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