Hey Clifford,
Can you send me a pcap? Hard to diagnose the problem without being
able to reproduce it.
Thanks,
Aaron
On Feb 7, 2008 1:27 AM, Clifford Bailey <[EMAIL PROTECTED]> wrote:
>
> Hi,
>
> I'm a new user of tcpreplay. I am trying to use it to test a firewall, much
> as in the example you have on the site. The problem I have is that tcpprep
> seems to be classifying my traffic the wrong way round consistently. I tried
> just swapping over the values for server and client, but tcpreplay then sends
> out the client traffic after the server traffic, so I get my ack before my
> request, which the firewall doesn't like very much! I am using the following
> script to generate the pcap file:
>
> tcpprep -i ${CAP_UNICAST} -p -o ${CACHE}
>
> # rewrite -- works but server and client the wrong way round
> tcprewrite -c ${CACHE} --enet-dmac=${FW_MAC_EXT},${FW_MAC_INT}
> --enet-smac=${SERVER_MAC},${CLIENT_MAC} --endpoints=${SERVER_IP}:${CLIENT_IP}
> -i ${CAP_UNICAST} -o ${PCAPOUT}
>
> If I then view the pcap file created, the macs assigned are all the wrong way
> round. I tried just swapping over the macs, which works to a point, in that
> the pcap file then looks right, but it seems that because the traffic has
> been classified as server/client tcpreplay sends it in a specific order,
> rather than the order on the file.
>
> (I run replay with the command: tcpreplay -M 100 -l 0 -i $SERVER_INT -I
> $CLIENT_INT -c $CACHE $PCAPOUT). I've read and re-read the man pages, and as
> far as I can see this is correct, however I could well have made a mistake.
> Is it glaringly obvious to anyone what I've done wrong?
> Thanks,
>
> Cliff.
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