Re: Low Level Network Traffic Analyser

[Lawrence MacIntyre]

Marco:

tcpdump will work just fine for this purpose.  You can also use
wireshark if you want a GUI interface.  

On Thu, 2008-10-23 at 10:23 -0400, Marco wrote:
> Hi all,
> 
> I am new to this mailing list and hope it is the right place to place
> my question. If not, I am thankful for suggestions where to place it
> instead.
> 
> I have to connect to a phy using a FPGA. So far, the FPGA only
> implements the Data Link Layer. On top of that, the data is just
> looped back to the sending computer. I use a package generator tool to
> send data.
> 
> Now I want to test if the implementation of the Data Link Layer
> together with the loopback works correctly. Therefore I am searching a
> tool to capture the traffic on the network card of the computer. I
> want something to capture the outgoing and incoming traffic so that I
> am able to compare these.
> 
> I thought of tcpdump but I am not sure if it is able to capture
> traffic on such a low layer. Can tcpdump do that? If not, what other
> tools could you recommend?
> 
> Thanks a lot in advance!
> 
> --
> Best regards,
>  Marco
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