Thanks for the reply. I overlooked this issue when seeking.
Really a pity that this is a dead end.
flowreplay would have been a nice tool when testing new server setups.
I will take another look around but this is probably to complicated to
find a consistent solution.
Anyway thanks.
best regards
Peter
-----Oprindelig meddelelse-----
Fra: Aaron Turner [mailto:[EMAIL PROTECTED]
Sendt: 28. oktober 2008 16:11
Til: Main forum for tcpreplay
Emne: Re: [Tcpreplay-users] test server with real life traffic
On Tue, Oct 28, 2008 at 3:12 AM, Peter Sørensen <[EMAIL PROTECTED]> wrote:
>
> Hello,
>
> I am quite new to this list and not very familiar with tcpreplay and the
> possible ways to use it.
> I have tried to google around to se if anybody had an answer to my problem
> but none so far.
>
> What I want to do is test a mailsetup (postfix,amavis....whatever) with real
> life traffic.
>
> What I have tried to do is :
>
> 2 servers - 1 in production (ip 10.8.69.20 ) and 1 in test (ip 10.9.224.11).
>
> I use tcpdump to capture the traffic to the server in production. I do
> this from a different server sitting nearby on the same network.
>
> tcpdump host production.xxx.xxx -w prod.pcap
>
> >From what I understand it would then be possible to do a replay.
>
> I rewrite the src/dst addresses with tcprewrite like ( first calling tcpprep)
> :
>
> tcpprep --port --cachefile=prod.cache --pcap=prod.pcap tcprewrite
> --srcipmap=10.8.69.20:10.9.224.11 --dstipmap 10.8.69.20:10.9.224.11
> --cachefile=prod.cache --infile=prod.pcap --outfile=test.pcap
>
> and finally call tcpreplay like:
>
> tcpreplay -i eth0 test.pcap
>
> It sends the packets OK but nothings happens. What am I missing?
>
> I probably totally misunderstood this or are trying to do something not
> possible to do with theese tools.
> Could someone please shed some light on this.
This is covered in the FAQ here:
http://tcpreplay.synfin.net/trac/wiki/FAQ#Doestcpreplaysupportsendingtraffictoaserver
--
Aaron Turner
http://synfin.net/
http://tcpreplay.synfin.net/ - Pcap editing and replay tools for Unix & Windows
They that can give up essential liberty to obtain a little temporary safety
deserve neither liberty nor safety. -- Benjamin Franklin
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