Chris,
I set my client to use HTTP transport in the QuickTime system
preferences, and then specified port 554 instead of the default 80.
Once that's done, you use the same URL that you would use otherwise,
rtsp://<hostname>/<moviename>
I don't think you will be able to use that specific method when testing
from work, but it might be worth a try. You'll probably have to bind or
map QTSS to port 80 in order to access it from your workplace, using the
HTTP transport over port 80.
-Joel Hedden
On Thu, 2002-10-31 at 12:50, Chris Witzgall wrote:
> Joel,
> You are right, it is the firewall at work. I am a bit confused by your
> statement, that the http transport looked great. What url did you use to
> initiate the stream over http?
>
> -----Original Message-----
> From: Joel Hedden [mailto:email@hidden]
> Sent: Thursday, October 31, 2002 3:28 PM
> To: Chris Witzgall
> Cc: email@hidden
> Subject: RE: Anyone able to use DSS behind a firewall?
>
>
> Chris,
> I think your problem is that at work, your requests are being blocked by
> a firewall (not the one you set up at home). The workaround is to
> stream via HTTP/port 80. (This is "true streaming", its just tunnelled
> through the HTTP protocol.) From Apple, I was able to view your movie
> using both HTTP and UDP transports. But, the UDP transport got A LOT of
> packet loss, whereas the HTTP transport looked great. Normally I would
> think this is caused by firewall/NAT problems with passing the UDP RTP
> or RTCP packets correctly.. but when I ran a sniffer, it looked like I
> was getting all of the necessary UDP packets.
>
> So using HTTP/port 80 should be an effective workaround for you, but I'm
> not sure what needs to change for UDP transport to work correctly. To
> get around the firewall, you'll have to relocate any web server that's
> already using port 80, enable "streaming on port 80" in QTSS, and make
> sure your NAT is configured to map incoming port 80 requests to the QTSS
> machine.
> You may also have the option of mapping incoming port 80 requests to
> port 554 on the QTSS machine, which wouldn't require any changes to the
> QTSS or web server configurations.
>
> -Joel Hedden
>
> On Thu, 2002-10-31 at 07:30, Chris Witzgall wrote:
> > I think that I have the same problem as well. I have opened up the correct
> > ports through my 1700 Cisco Router at home. Since I am running a web
> server
> > on the same machine, I don't want to use http streaming (Plus the fact
> that
> > the user experience is better in my opinion with true streaming) I have a
> > static IP, and am using NAT. when I try and connect internally, it works
> > fine. NADA Outside. One thought, is that since that when I am trying to
> > connect from the outside, is that the problem is not in my firewall, but
> the
> > firewall at work, which I have to go through to get to the home machine.
> > Anyone want to try the URL and let me know if it works for them?
> >
> > rtsp://www.witzgall.org:554/snow2001.mp4
> >
> > Thanks,
> > Chris
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