Thanks for the quick response. I appreciate it.
I'm using the loopback interface because a co-worker is working on the same
linux box as me and is doing tests on the other interfaces.
Would there be a simple way for me to modify the source code in order to
re-randomize the ip address before each iteration or not?
- Dileep
On Fri, Jun 17, 2011 at 12:23 PM, Aaron Turner <synfina...@gmail.com> wrote:
> On Fri, Jun 17, 2011 at 9:57 AM, Dileep Simha <dsi...@gmail.com> wrote:
> > I have a question about the randomizing ip address function of
> > tcpreplay-edit.
> > When I run the following: ./tcpreplay-edit --intf1=lo --topspeed
> --seed=10
> > --loop=3 capture.pcap,
> > is the ip address randomized before every single loop or is it just done
> > once and then the same ip address sent over and over. I was going to
> check
> > this with --verbose flag but that keeps giving me an error
>
> Sorry about the verbose flag issue... been driving me nuts that one.
>
> As for seed & loop, basically you'll end up with the same IP addresses
> 3 times. Basically randomization is done by combining the seed +
> original IP to generate the new IP. In order for sessions not to
> break, the code makes sure that a given seed + IP always results in
> the same "randomized IP".
>
> FWIW, replaying over loopback is almost always the wrong thing to do.
>
>
> --
> Aaron Turner
> http://synfin.net/ Twitter: @synfinatic
> http://tcpreplay.synfin.net/ - Pcap editing and replay tools for Unix &
> Windows
> Those who would give up essential Liberty, to purchase a little temporary
> Safety, deserve neither Liberty nor Safety.
> -- Benjamin Franklin
> "carpe diem quam minimum credula postero"
>
>
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