Howto for configuring

isaac park poetizer "at" hotmail.com
Mon Jun 21 10:21:06 2004


Maybe I was too brief in previous post.

First, the role of NAT is forward traffic from one network to specific 
computer/s in another network.  So I believe rather then 'how to bypass 
NAT', it would be more correct to say 'how to tell the NAT to do what I 
want'.  It would be a role of NAT to connect your VNC request from home to 
your office computer.

Obviously, in your office, router's Internet IP address (public IP, say 
220.220.111.111) will be different from your desktop computer(say 
192.168.1.3).
You have to modify NAT so that the router will forward all the incoming 
traffice from Internet through port 5800 and 5900 to 192.168.1.3.  Port 5800 
and 5900 are default port numbers used by RealVNC.

Configure VNC in your home computer to connect to your office's public IP 
(220.220.111.111) and when you connect the router will forward the traffic 
to your computer (192.168.1.3)

If you have more than one ppl in your office whish to run VNC server on 
their computers, modify each VNC server to use different port (5901, 5902, 
5903 and so on) and they will have to add their own port number in 
connection IP address on viewer. ( VNC server: 220.220.111.111:5093)




>From: "GRL" <giovrell "at" tin.it>
>To: <vnc-list "at" realvnc.com>
>Subject: Re: Howto for configuring
>Date: Sun, 20 Jun 2004 16:30:39 +0200
>
>Thank you very much, but I don't understand yet how I can bypass the NAT:
>that is, how can I reach from home my office PC if its IP address on the
>internal LAN is different from the outer one (and vice versa, even if there
>are ways to publish the home address in order to know it)? I think that 
>this
>is a problem  indipendently if the IP address is static or dynamic.
>Regards.
>Giovanni
>----- Original Message -----
>From: "isaac park" <poetizer "at" hotmail.com>
>To: <vnc-list "at" realvnc.com>
>Sent: Sunday, June 20, 2004 2:37 PM
>Subject: Re: Howto for configuring
>
>
> > how to reach home computer from office computer:
> > You need either static or domain name service that resolves to your
>dynamic
> > ip on your home computer.  I don't remember the site but it's listed in
> > real-vnc document.
> >
> > how to reach office computer from home compuer:
> > you have to configure your firewall to allow and forward all incoming
> > traffic on port 5800 and 5900 to your office computer.  To do this 
>you'll
> > have to have static private ip for your office computer.  If you have to
>use
> > dhcp, register your mac address on dhcp server to reserve a static ip.  
>In
> > that way you will still use dhcp but will be given same ip all the time.
> >
> > hope this is what you're looking for.
> >
> > cheers.
> > Isaac
> >
> >
> > >From: "GRL" <giovrell "at" tin.it>
> > >To: <VNC-List "at" realvnc.com>
> > >Subject: Howto for configuring
> > >Date: Sun, 20 Jun 2004 09:19:33 +0200
> > >
> > >Sorry, but I still need an answer, so I repeat my question.
> > >Thanks.
> > >
> > >
> > >Since much time I've been trying to undestand how to configure my home
>and
> > >work computers to be able to use the many VNC programs. In details:
> > >1) at home, I'm connected to Internet by an ISP in ADSL (dynamic IP);
> > >2) at work, I'm connected to a LAN with its protections tools (mainly
> > >firewalls) which, in turn, is connected to a governmental net which has
> > >firewalls, IDS, etc. Inside the LAN of my office I have the IP address 
>by
>a
> > >DHCP.
> > >Both computers are WinXP Pro computers and the office LAN is a MS, but 
>at
> > >office I go to Internet by a Linux server.
> > >So, I don't undestand how I have to configure my 2 computers to reach
>each
> > >other.
> > >I apologize for my (dumb) question, but I'd like, finally, to undestand
> > >what I
> > >have to do.
> > >Thanks.
> > >Giovanni
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> >
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