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Posted by:jbiswajit
Subject:Packet Header Analysis
Date:02:45:34 16/10/2006

> > Hi,
> >
> > I have captured a lot of packets from wireless networks using kismet.
> >
> > Now I want to extract packet headers and identify losses. Among the
> > losses,I want to find the percentage due to congestion on the network, percentage due to packet corruption on the wireless medium, percentage due to medium contention, timeouts, packet reordering.
> >
> > Is there any kismet utility to do all this ?
> No. This is effectively impossible if you aren't the AP.
> Some things you can detect (retransmission), you can't tell why it dropped, and you'd have to do full tcp header analysis on an unencrypted network to get any data on reordering. (which won't really happen since retrans happens at the link layer not tcp layer)
> -m

Thanks for your inputs. Actually the packets I have captured are the packets from my home wireless which is encrypted in 128 bit WEP. I have captured the packets files of size around 11 gbs in 2.3 files.

I can identify my own AP or can probably identify my own router. So with this information, can I do the above analysis I mentioned earlier ?

Please reply.


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