TightVNC

Leon:

 	Heya. Everything you need to know about VNC and port
forwarding you can find here:

http://faq.gotomyvnc.com/fom-serve/cache/63.html

 	It sounds like you did everything right, except you
forward way too many ports. The ":1" VNC Display needs only
5901, not 5901-5999. Try just forwarding one port each to
your father and son's PC -- 5900 to the first PC, then 5901
to the second PC.

 	If both PC's you're trying to connect to are Windows
PC's, then using EchoVNC might be easier for you than trying to
setup port-forwarding. The idea is that you (being the "techy"
of the group) run an echoServer (Windows or Linux) on a PC that
you can connect to from both your PC's and the remote ones.
For example, you can run an echoServer one of of your PC's,
doing any port-forwarding or dynamic-DNS'ing as necessary so
that you can connect to it from your father and son's LAN. Once
the echoServer is setup, you simply connect to it using EchoVNC
on both ends of the VNC connection, with no further firewall/router 
adjustments needed. When you make a VNC connection using EchoVNC,
you can use the echoServer "login names" as identifiers, so you
don't need to know the VNC Server's IP address. And if you have
the OpenSSL toolkit installed, the data-content of the VNC
connection is end-to-end encrypted with 128-bit AES.

   	Apologies in advance for the "self-promotion" here, but
for Windows-to-Windows VNC'ing across the Internet, I think it's
an easier solution than a 2-day effort. :) Hope it helps!

-Scott

PS: http://www.echovnc.com


> I'm hoping someone can help..been trying the better part of 2 days trying
> to figure this one out. My Father and my Son are not as computer inclined
> ;) as I am and they live 20 miles away from me. So there are times when I
> need to fix things for them yet can not make the 40 mile round trip trek.
> They each have their own PC. They have comcast cable. I installed a Linksys
> WRT54G router and they each can access the internet with no trouble. I then
> installed a TightVnc server on each of their machines. My son's machine is
> 192.168.1.100 and my father's is 192.168.1.101. I then went into the router
> config (Up to date firmware) and went to the port forwarding section. I set
> up the first forward for my sons machine as 5900-5999 with TCP protocol. I
> did the same for the father's PC but made the forward 5901-5999 as his
> machine is the 101. Both are enabled. Have my steps so far been correct? If
> not..where have I gone wrong?
>
> When I try to connect from my house to them using the viewer, I enter the
> IP address and a :0 and I connect with no problem to my son's machine. When
> I try to connect to my father's machine at 101 I again put the IP number in
> and a :1 and then..nothing. It just will not connect. My guess is that I
> have not done the port forwarding correctly, but from what I can see I
> think I do.