Re: [Discuss-gnuradio] Wireshark issue

On 07/30/2010 10:41 AM, David Barton wrote:
> Hi,
> I am relatively new to GNU Radio. I set up a simple experiment of
> connecting a file source directly to the usrp sink and monitoring the
> traffic on the ethernet port using wireshark. The source file simply
> contains the letters abc. When I ran the flowgraph in GRC it did seem to
> initiate traffic on the ethernet interface to the USRP but I could not
> find the string abc in any ethernet frame. I thought that since there is
> no modulation or any other manipulation of the source data in the
> flowgraph before the usrp that I would be able to find this data string
> in the ethernet frame. Is there anything the USRP sink block could be
> doing on the host side that would alter the data before it gets sent out
> over ethernet interface to the USRP?
> Thanks,
> Dave

There may be data format conversion happening. What data types are you
using?

Matt

_______________________________________________
Discuss-gnuradio mailing list
Discuss-gnuradio@gnu.org
http://lists.gnu.org/mailman/listinfo/discuss-gnuradio