Problems connectig to a VNC server behind an ISA Server

[Jorge Luis De Armas García]

James

I think that problem is on ISA Server configuration because using a direct 
modem conecction to INTERNET (via an ISP) there is no problems, so the VNC 
is OK. Before send my message to vnc-list I read at your site FAQ and the 
rest of documentation and try everything but the problem persist.

JL

----- Original Message ----- 
From: "James Weatherall" <jnw "at" realvnc.com>
To: "'Jorge Luis De Armas Garcma'" <jldearmas "at" ticex.co.cu>; 
<vnc-list "at" realvnc.com>
Sent: Friday, December 09, 2005 12:04 PM
Subject: RE: Problems connectig to a VNC server behind an ISA Server


> Jorge,
>
> Please see http://www.realvnc.com/portforward.html, in particular some of
> the links contains useful info.
>
> In order to get in to the server, you'll need to forward a TCP port on 
> your
> firewall to TCP port 5900 on the server computer, for inbound connections.
> How to do this should be described in the ISA Server 2000 documentation.
>
> Cheers,
>
> Wez @ RealVNC Ltd.
>
>
>> -----Original Message-----
>> From: vnc-list-admin "at" realvnc.com
>> [mailto:vnc-list-admin "at" realvnc.com] On Behalf Of Jorge Luis
>> De Armas Garcma
>> Sent: 09 December 2005 17:24
>> To: vnc-list "at" realvnc.com
>> Subject: Problems connectig to a VNC server behind an ISA Server
>>
>> Hi everyone
>>
>> I try to use VNC Viewer (freeware edition) at my office to
>> connect to a VNC
>> server in another company via INTERNET using a VPN
>> connection. We use ISA
>> Server 2000 as firewall. Every time I try to connect to VNC
>> server I get a
>> connection timeout error (10060). First I try to make a rule
>> to allow use of
>> port 5900 (even inbound and outbound) after no solution with
>> that I make a
>> rule to allow use of any port to the IP of the computer
>> running VNC Viewer
>> with the same results. Even I make a publishing rule to
>> redirect port 5900 on
>> external interface (IP) to the IP of the VNC Viewer computer.
>> I ping to VNC
>> server without problems, but telnet to VNC server on port
>> 5900 do not work.
>>
>> Does any body using ISA Server as firewall had been a
>> connection through it?
>>
>> I search the mailing list looking for information about my
>> question but
>> although many others ask about the same problems I did not
>> find a solution.
>>
>> TIA
>>
>> JL
>>
>> Lic. Jorge Luis De Armas Garcma
>> Chief Architecture Designer
>> Euromedia Tecnologma y Sistemas
>> ACITED Informatica
>> email: jorge.dearmas "at" euromediatys.com
>>           jldearmas "at" ticex.co.cu
>>           jldearmas "at" gmail.com
>>           jldearmas "at" yahoo.com
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