Connection issue Router Bell / Sympatico

[Sonia And Simon]

Hi,



You were right!



The computer B (behind the router and running vnc server) also have 
Kaspersky firewall.

I was stopping Kaspersky firewall but what I did not know was the Windows 
default firewall was still active.

When I realize that I was surprise because when Kaspersky installed he 
mentioned Windows firewall will be disabled. That happened in all other 
computer that I installed Kaspersky, but not this one.



Then, I stopped Windows firewall and work right on in Active Listening mode



Than you very much to you Mike.



It work fine now.

----- Original Message ----- 
From: "Mick" <michaelkintzios "at" gmail.com>
To: "Sonia And Simon" <SoniaAndSimon "at" hotmail.com>
Cc: <vnc-list "at" realvnc.com>
Sent: Saturday, March 17, 2007 2:52 PM
Subject: Re: Connection issue Router Bell / Sympatico


> On Saturday 17 March 2007 20:27, you wrote:
>
>> My thought process was:
>>
>> If computer B (with the router) can connect to computer A by FTP, they 
>> can
>> see each other!
>>
>> Why they cannot ping each other? The router prevents that to happen.
>> (Spoofing protection)
>
> It may be the router (if it has been set up to ignore pings) and, or it 
> may
> also be the WinXP firewall which by default ignores ICMP.
>
>> The router is not stopping communication on port 20 and 21 (FTP port).
>
> OK, so it has been configured to allow connections on these two ports.
>
>> The router is not stopping communication on port 80 (HTTP port).
>
> Ditto.
>
>> Because Computer B can uses FTP and HTTP.
>>
>> Then, I figure that I will communicate on the port number 80 to make a
>> test.
>>
>> No, it failed
>
> Here we come back to my previous comment: do not mix and match
> ports/applications/protocols.  They may interact with each other in an
> adverse way.
>
>> Ok, I will try to make the server connect to the client (Default port is
>> 5900).
>>
>> No, it failed
>
> That's because the default port for VNC Viewer launched in listening mode 
> is
> 5500, not 5900.  Check this M/L and FAQs on the Real VNC website.  I am 
> sure
> it is explained somewhere how to set up the server to connect to a 
> listening
> VNC Viewer.
>
>> I will make the server connect to the client on port 80.
>>
>> No, it failed
>
> As before.  Also, port 80 is usually reserved for remote router
> administration.  Unless it has been set up to run an HTTP server (i.e.
> forwarding port 80 to an IP address on the LAN) it will fail.
>
>> Like I said before this router (Bell / Sympatico) has a locked firmware.
>
> If you cannot alter the port forwarding set up of the router infront of 
> the
> VNC server then don't try to achieve a conventional VNC Viewer --> VNC 
> server
> connection - it will definitely fail because the router will stop incoming
> connections on port 5900.  Then you are left with setting up the server to
> accept connections from a listening VNC viewer.  As I understand it you 
> have
> to set up the current IP address of the client on the server ('accept
> connections from client' setting) and open port 5500 on the client side. 
> If
> computer A is behind a router you need to set up port forwarding and also 
> you
> need to set up the WinXP firewall on the client to accept incoming
> connections on 5500.
>
> Come back with specific errors in response to your specific actions and we 
> may
> get somewhere?
> --
> Regards,
> Mick
>
> [demime 1.01d removed an attachment of type application/pgp-signature]
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