Raw UDP packets not being picked up by udpsrc

[Peter Maersk-Moller]

3 things (actually a lot more) can prevent you from receiving UDP packets
that you can see arrive with tcpdump:

   1. UDP packets arriving on an interface from a source where the route to
   the source is routed via another interface.
   2. iptables fw-rule.
   3. Multiple listeners on same port without SO_REUSEADDR/SO_REUSEPORT.
   See also
   http://stackoverflow.com/questions/14388706/socket-options-so-reuseaddr-and-so-reuseport-how-do-they-differ-do-they-mean-t

Regards

Peter Maersk-Moller

On Thu, Feb 9, 2017 at 9:33 PM, twallis <twallis at deeptrekker.com> wrote:

> Hello,
>
> I know that this is a semi-common issue, at least for gstreamer beginners
> like myself, however I am running into an interesting issue on my embedded
> linux application.  Using gstreamer 1.6.3 (due to sdk/support reasons from
> TI) I am trying to receive an mjpg stream from my ip camera.  When I check
> the tcpdump on hte port the camera is sending to, I see it fine, and when I
> launch
>
> gst-launch-1.0 udpsrc port=1234, and try to send the stream to a file-sink,
> I receive nothing in the file I'm trying to send it to.  I've already read
> through the solution found here:
>
> http://gstreamer-devel.966125.n4.nabble.com/udpsrc-has-no-
> data-for-windows-td4678014.html
>
> and ran into significant errors attempting to install 1.8.1 (and newer)
> from
> source.  As that's the other issue, my embedded system does not have dpkg,
> or apt!  Everything must be compiled from source!
>
> Thank you for your help
>
>
>
>
> --
> View this message in context: http://gstreamer-devel.966125.
> n4.nabble.com/Raw-UDP-packets-not-being-picked-up-by-udpsrc-tp4681796.html
> Sent from the GStreamer-devel mailing list archive at Nabble.com.
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