WMP10 knocks on port 554...

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Date: Tue, 26 Oct 2004 12:05:50 -0700

Hi Rich,

This is to be expected. All clients from WMP9 onwards will
connect to the WMS 9 server using RTSP instead of MMS as
RTSP is the preferred protocl (this is even if MMS is
specified as a protocol in the request URL). So, opening
554 should solve your problem - your setup is working just
fine.

If MMS is used in the requesting URL, any WMP9 player
connecting to WMS9 server will connect through RTSP.

However, if WMP9 is connecting to a WMS4.1 server (which
does not understand RTSP), it will connect using MMS.

If MMS is used in requesting URL, any player shipped
BEFORE WMP9 connecting to WMS9 server will connect using
MMS (since the older players do not understand RTSP).

Hope this helps.
Ravi

--
This posting is provided "AS IS" with no warranties, and 
confers no rights.
>-----Original Message-----
>Dear all,
>
>Like many of us, I am currently experimenting with WMS9 
on Windows 2003 
>server -  Enterprise. My goal is to finally broadcast my 
own musical 
>compositions on the web.
>
>I am in the test phase of setting up WMS9, with only one 
PubPt, called 
>"Test". This PubPt is configured as an on-demand PubPt, 
just looping through 
>1 directory of mp3's.
>
>On my LAN I have no problems connecting to the stream, 
using WMP10, and an 
>URL in the form: "mms://server-name/Test"
>
>WMS9 is setup to allow RTSP and MMS connections through 
both of their 
>default ports. i.e. 554 and 1755 respectively. (The below 
described problem 
>remains however when I disable RTSP and only want MMS to 
be supported)
>
>Now, the difficulty I am facing is the following:
>
>- I have configured my firewall to accept packets on port 
1755 (MMS-TCP), 
>since I first want to have MMS working. So, I have not 
enabled port 554, or 
>any other ports for media streams on purpose. Just like 
>http://www.microsoft.com/windows/windowsmedia/serve/firewa
ll.aspx advises on 
>streaming using TCP. ( I only want to get the different 
streaming types 
>working one at the time...)
>
>Now, I know that WMP10 uses port rollover by default and 
the following is 
>what happens when I try to connect from an "outside" 
location using WMP10 and 
>connect to my server using "mms://myserver_ip/Test"...:
>
>When I look at my firewall logs (remotely and at the same 
time I am trying 
>to connect), I see that my "outside" IP is blocked on 
PORT 554 as soon as I 
>try to connect to the server. 
>This means that my MMS:-request is translated (rolled-
over) into a TCP-RTSP 
>request, while I expected the packets to arrive at my 
firewall as being 
>MMS-TCP packets on port 1755.
>
>Could anyone explain this symptom perhaps?
>
>I guess, therefore, my question will be, how to force 
WMP10 to send MMS-TCP 
>requests on port 1755?
>
>I expect (I haven't tried it yet) that,  when I open port 
554 as well, all 
>would work fine. But that is NOT what I don't understand. 
I don't know why my 
>WMP10 knocks on my door on port 554. Sure, when I open 
all the ports, I would 
>get to my content finally, but that will not explain my 
problem.
>
>I have tried all posible Network options in WMP10, by 
enabling and disabling 
>the different supported protocols like Multi-cast, UDP, 
TCP and HTTP, but in 
>all cases, WMP10 keeps knocking on port 554.
>
>The only thing I can think of is, that my "outside" IP is 
behind a firewall 
>that translates all streaming media into TCP-RTSP 
packets/requests...but I 
>don;t have a way to verify this at the moment.
>
>All tips and comments are highly appreciated !
>-- 
>Cheers! Richard
>.
>

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