Hello everybody,

When I scanned my GPRS connection, I found a private IP. So I
continued the tests with the viewer on the GPRS and the server behind
a public IP. But the problem remained the same, even if I used the 80
port with the HTTP protocol (with the Java viewer). For now, I don't
know why it doesn't work...

At this point, I decided to contact my provider to know the precise
limitations of my connection and he told me that some ports are
blocked... But he also gave me another APN which allows connections
on every ports with a public IP. (it consists in using the
"internet-entreprise" APN inspite of the "orange.fr" one) Exactly as
you said, Markus, and it works perfectly now !

Thanks all for your help,

Laurent.



[EMAIL PROTECTED] a icrit :

>   A. Re: GPRS connection (Yann Renard)
>   B. Re: GPRS connection (Angelo Sarto)
>   C. Re: GPRS connection (Markus Becker)
>
>
>Message: A
>Date: Wed, 29 Jun 2005 13:21:12 +0200
>From: Yann Renard <[EMAIL PROTECTED]>
>To: VNC List <[email protected]>
>Subject: Re: GPRS connection
>
>Laurent Van Poucke wrote:
>
>>Hello,
>>
>>Thanks Yann,
>>
>>I verified the available ports with my GPRS connection and, that's
true, 
>>my provider has blocked the 5900 port. So I tried to change the port

>>used but it seems that there is no port available with both : VNC
free 
>>and my provider (Orange France).
>>
>>To solve this problem, I tried to use the VNC enterprise edition
with 
>>the 80 port (because I am sure it works with the GPRS). But the
problem 
>>remains the same : It works perfectly on wired connections but I get
a 
>>time out error with the GPRS connection.
>>
>>Do you have another idea ?
>>
>>Thanks a lot,
>>
>>Regards,
>>
>>Laurent VP
>
>
>Laurent,
>
>I suspect protocol analysis on port 80. I think Orange waits for
HTTP
>requests / answers on this port. VNC Does not use HTTP.
>
>However, RFB messages could eventually be sent/received in HTTP
packed
>form... Should it be a feature of VNC, not sure ;)
>
>Hope this helps,
>Regards
>Yann
>
>
>Message: B
>Date: Wed, 29 Jun 2005 07:48:17 -0500
>From: Angelo Sarto <[EMAIL PROTECTED]>
>Reply-To: Angelo Sarto <[EMAIL PROTECTED]>
>To: Yann Renard <[EMAIL PROTECTED]>
>Subject: Re: GPRS connection
>Cc: VNC List <[email protected]>
>
>Another possible thing to try is to running it on port 443 while
loading the
>java viewer via 80. Since 443 is https it doesnt always get
>protocolanalayzed (i like that as a new word :)
>
>Or if you are feeling brave you could also try tunneling it via ssh
on port
>443 as well.
>
>
>--Angelo
>
>On 6/29/05, Yann Renard <[EMAIL PROTECTED]>
wrote:
>
>>Laurent Van Poucke wrote:
>>
>>>Hello,
>>>
>>>Thanks Yann,
>>>
>>>I verified the available ports with my GPRS connection and, that's
true,
>>>my provider has blocked the 5900 port. So I tried to change the
port
>>>used but it seems that there is no port available with both : VNC
free
>>>and my provider (Orange France).
>>>
>>>To solve this problem, I tried to use the VNC enterprise edition
with
>>>the 80 port (because I am sure it works with the GPRS). But the
problem
>>>remains the same : It works perfectly on wired connections but I
get a
>>>time out error with the GPRS connection.
>>>
>>>Do you have another idea ?
>>>
>>>Thanks a lot,
>>>
>>>Regards,
>>>
>>>Laurent VP
>>
>>Laurent,
>>
>>I suspect protocol analysis on port 80. I think Orange waits for
HTTP
>>requests / answers on this port. VNC Does not use HTTP.
>>
>>However, RFB messages could eventually be sent/received in HTTP
packed
>>form... Should it be a feature of VNC, not sure ;)
>>
>>Hope this helps,
>>Regards
>>Yann
>>_______________________________________________
>>VNC-List mailing list
>>[email protected]
>>To remove yourself from the list visit:
>>http://www.realvnc.com/mailman/listinfo/vnc-list
>
>
>
>Message: C
>Date: Wed, 29 Jun 2005 15:24:26 +0200
>From: Markus Becker <[EMAIL PROTECTED]>
>To: [email protected]
>Subject: Re: GPRS connection
>
>Laurent,
>
>>The two connections work well on the web. I define the IP
>>used by the GPRS connection but the viewer fails to connect to the
>>server.
>>
>> 
>>
>The GPRS Provider might use NAT (Most GPRS Providers do so today).
This 
>means the Viewer can not reach the server by default.
>You might ask your GPRS provider for a public IP, some Provider
operate 
>seperate GPRS APNs using public ip.
>There might also be possibilities to connect having the server behind

>NAT, but first you should check if this is your problem. You could 
>perhaps try to put the server on the dsl-side and the viewer on the
GPRS 
>side for a test...
>
>Markus
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