My worry was about the required amount of real-time processing power since
you will need to check if some portion of the network packets meets or not
meets a defined criteria. Storage is not a problem ; directly hook the
system to a LPT printer and take the hardcopy of packet contents ?

Tcpdump is an efficient tool, if OP doesn't want to deal with the low level
stuff, he is probably better off using the Pi.


On Fri, May 3, 2013 at 5:27 PM, RussellMc <apptechnz@gmail.com> wrote:

> > to SD within your specifications (100kbits/s). You can also use a USB
> host
> > and save it to usb flash drive.
>
> > What worries me is if you want to implement a selective algorithm
> > that logs some of the data
>
> 100 kbps is only a 5.25" floppy diskette full per hour.
> Change diskettes hourly and he'll be fine :-).
> Hey, the data rate may even be high enough with care :-).
> (Write rate on-track is OK. It's the track to track stepping that may
> kill you. )
>
> Or 3 weeks continuous on an 8 GB SD.
>
>
>
>        R
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