telnet to Cognex In-Sight 4001 camera
roy at panix.com
Tue Feb 26 02:44:19 CET 2013
In article <71787193-b4aa-438f-a8f1-058873346e27 at googlegroups.com>,
chris.annin at gmail.com wrote:
> On Monday, February 25, 2013 9:02:54 AM UTC-8, chris... at gmail.com wrote:
> > Hello, ive been struggling with this for a couple weeks now and was hoping
> > someone might be able to help. I have an older Cognex camera that I need
> > to communicate with via telnet. I can get a response from the camera when
> > I initiate a telnet session but I dont seem to get any response when I
> > write the user name to the camera - I havnt been able to get any response
> > writing anything.
Two suggestions I can make.
One is to use the command-line telnet utility to talk to the camera.
Verify that you can at least make a connection and authenticate that way.
Second, use a packet sniffer to watch the actual traffic going back and
forth to the camera. On a Unix box, I would do:
$ tcpdump -s 0 -A host 10.31.18.21
but it looks like you're on windows, so you'll want to use Wireshark
(http://www.wireshark.org/) instead of tcpdump. If you're not familiar
with TCP protocol details, you'll want to read up on it so you can
properly interpret what tcpdump or Wireshark is telling you.
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