gst-rtsp-server, rtspsrc &Firewall/NAT?

[Chuck Crisler]

This is not a GStreamer specific problem, it happens with all RTSP (and
other) servers. What you need to do is to choose a client port and
configure the client to always request that port, then enter a firewall
rule to open that port. Be forewarned, there are some buggy NATs that will
lie about opening ports.


On Mon, Jul 28, 2014 at 10:34 AM, Carl Kovamees <
ckovamees at digitalresultsgroup.com> wrote:

>  Thanks. It actually fallsback to TCP automatically. But, I really want
> UDP. J
>
>
>
> /Carl
>
>
>
> *From:* gstreamer-devel [mailto:
> gstreamer-devel-bounces at lists.freedesktop.org] *On Behalf Of *Mailing
> List SVR
> *Sent:* Monday, July 28, 2014 10:27 AM
> *To:* gstreamer-devel at lists.freedesktop.org
> *Subject:* Re: gst-rtsp-server, rtspsrc &Firewall/NAT?
>
>
>
> Il 28/07/2014 16:02, Carl Kovamees ha scritto:
>
> Hi all.
>
>
>
> This is about getting through a client side firewall/NAT that assigns new
> source ports every connection.
>
>
>
> I’m using 1.4; gst-rtsp-server and the gst-launch-1.0 with playbin as
> client.
>
>
>
> My client is behind a firewall/NAT that gives random outbound ports. The
> rtsp-server side is pretty much wide open.
>
>
>
> After the RTSP PLAY message, but before the server starts to send RTP
> packets, the client sends UDP packets to the correct server port (I assume
> these are the rtspsrc element’s dummy packets). However, the client source
> port is not what was specified in the RTSP SETUP message (client_port) –
> the firewall seems to assign new ones every time.
>
>
>
> Is there any way to override the client_port based on the (dummy packets)
> source port?
>
>
>
> If not, any ideas of how to leverage the rtspsrc element’s dummy packets
> in lieu of implementing libnice or other firewall/NAT traversal technics?
>
>
>
>
>
> Any ideas are much appreciated – thanks,
>
>
> try to use rtsp over tcp, if you use gstreamer as client simply change the
> url from rtsp:// to rtspt://
>
> Nicola
>
>
>
>
>
>
> /Carl
>
>
>
>
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