Re: basic usage problem

["kurt.jensen () us ophiropt com" <kurt.jensen () us ophiropt com>]

And I'm not sure of all the transport particulars.

What I do know is from past usage.  In the past I would see packets labeled GVCP for requests and answers (ie. 
parameter writing and reading) and other packets labeled UDP which had about 8k of data as we are using Jumbo Frames 
and Packets.  The coloring was different in the past - maybe there is a GVCP protocol analyzer?

Now, where there should be several hundred 8k+ UDP packets I see nothing. I see the commands that always fall before 
and after but the data is missing.

Kurt

-----Original Message-----
From: wireshark-users-bounces () wireshark org [mailto:wireshark-users-bounces () wireshark org] On Behalf Of Bill Meier
Sent: Wednesday, December 12, 2012 9:21 AM
To: Community support list for Wireshark
Subject: Re: [Wireshark-users] basic usage problem

On 12/12/2012 9:59 AM, kurt.jensen () us ophiropt com wrote:
> Just installed Wireshark and started capture. Plugged in our GigE 
> camera under development.  Connected and collected a frame of data.
>
> Wireshark shows all of the GVCP requests and answers.  Very nice!  But 
> I am not seeing any of the UDP data.  I have no filters set, just 
> selected the interface then slicked start. I have run Wireshark before 
> on another computer where the UDP data just showed up along with the GVCP packets.
> I know the data is there because my PC app displays the image. But not 
> in Wireshark.
>
> How do I get the UDP data?
>
> Kurt

I'm not sure I understand.

It appears that GVCP is carried over UDP so it sounds like you are saying that only certain UDP frames are missing.

Is the "data" carried over the GVCP protocol ?

If so, I would expect the data show up as being under the GVCP layer of the protocol tree (as opposed to the frames 
just showing as UDP.
IOW: the "protocol" column would show GVCP as opposed to UDP.

(I've no knowledge of the GVCP protocol so I may be off-base).

Bill





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