For the second scenario, you have to have a server on your customer's
machine.  Oddly enough I've just described this scenario on this mailing
list.

I'm not aware of a way of getting the VNC server onto the client's machine
without getting them to install it, although if you Google for PCHelpware or
UltraVNC SC you'll see there are solutions available where the server is a
single downloadable which runs without installation.  I'd certainly be
interested myself in a way of getting RealVNC on a customer's machine
without them having to install it.  Some customers have managed to install
the server themselves following instructions I've put on the web, but most
assume (wrongly) that it's beyond them, and I end up visiting first.  I'm
not short of work, so I don't miss the ones I can't get to.

I've wondered if it's possible to script an installation, or provide a msi
file, but I've not had time to look into this.

Once you have the server on the customer's machine, you can use the
listening client method to set up the first connection, and use that to
configure their router to allow incoming connections.  I provide a shortcut
on their desktop which runs the listening client.

HTH

Phil

-----Original Message-----
From: Roger Withnell [mailto:ro...@upperbridge.co.uk] 
Sent: 25 January 2009 16:40
To: 'Philip Herlihy'; vnc-list@realvnc.com
Subject: RE: Connecting to a server behind a router

Thanks Philip.

I have two applications:  selling our websites to prospects; and helping
customers when they have problems.

Selling our websites to prospects:
I think I am set up for this correctly now.  I am the server and the
prospect uses a browser to view my desktop.  I can then demonstrate the
website on my server desktop to the prospect on the viewer desktop.

Helping customers when they have problems:
Now I want to see, and operate, my customers desktop to help with their
problems without the customer having to set up anything on their computer.

I think your last paragraph refers to this but I'm not sure.  Can you give
me a step by step procedure as to how I set this up.

Thanking you in anticipation.

Yours
 
Roger

-----Original Message-----
From: vnc-list-ad...@realvnc.com [mailto:vnc-list-ad...@realvnc.com] On
Behalf Of Philip Herlihy
Sent: 25 January 2009 12:32
To: vnc-list@realvnc.com; ro...@upperbridge.co.uk
Subject: RE: Connecting to a server behind a router

Two alternatives:

1)  Configure your router to forward any incoming connection using the
relevant port (5800 for the web browser connection) to the computer hosting
VNC.  See www.portforward.com for help with this (and your router's
manual!).  Most routers provide this facility, although terminology varies:
look for "virtual servers" or "port forwarding".

If you have multiple machines running VNC, some routers allow you to
"translate" the port number, so you can configure port 8000 (say) to route
to one VNC server operating on 5800, and 8001 (say) to a different machine,
also on 5800, which makes it easy to access several machines on one network
via a single router.  Alternatively you can set your VNC servers to use
different ports (5800, 5801) and route those ports to the various machines.
You'd connect using the IP address (e.g.) http://aaa.bbb.ccc.ddd::5801 (not
double colon). You may not need this, but it's worth mentioning for
completeness.

2)  You're using the web browser interface, but if you use the standard
server connection (defaults to port 5900) you can achieve a connection if
you initiate it in the reverse direction - from the server, instead of to
the server.  You have to run a "listening" client on the machine at the
other end, then use the right-click menu on the VNC tray icon to "add a new
client", supplying the IP address.  If the client PC is directly connected
to the Internet (e.g. by dial-up), or if the "listening" port 5500 is being
correctly forwarded by any router at that end, then the connection will be
made.  This is a useful way of operating for anyone supporting a number of
friends or clients who may not have the knowledge or patience to configure
routers at their end.

HTH

Phil, London

-----Original Message-----
...

Message: 1
From: "Roger Withnell" <ro...@upperbridge.co.uk>
To: <vnc-list@realvnc.com>
Subject: Connecting to a server behind a router
Date: Sat, 24 Jan 2009 19:23:26 -0000

My Server is 192.168.2.2 on my private network.
I can connect from the Viewer with http://192.168.2.2:5800 .

My static IP address is a.b.c.d

What is the address syntax to connect from a Viewer's browser over the
Internet to my Server.
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