Remote desktop on multiple machines behind the same router

[MBony]

I have 3 machines that I would like to have remote desktop access. The router used at this particular location is a Netgear FVS318. I have gone to ezlan.net and looked at UltraVNC, but can't get it to work. Is there another way to do this that doesn't involve GoToMyPc or Logmein?

 

[JackMDS]

May be you should explain what did not work out?

It is very unusuall that it would not work.

:sun:

 

[spikespiegal]

Easiest way is to use a seperate external IP's for each internal machine, and route them that way.

OK, before I hear too many snarls, I'm aware most people have only one IP available. So, what you do is just use different ports on your router for each machine, and point those ports to the different boxes.

You then specify the IP address as you normally do on your client side when you want to connect, but then key in the specific port number for the machine you want to connect to. The RDP client has several ways to do this if I remember right. By default it uses ports 3389, but you can change it.

 

[MBony]

Adding multiple IP addresses isn't an option as this is only 1 location and I have another 65+ locations that I want to do the same thing.

I have been to portforward.com and understand that VNC uses port(s) 5500 5800 5900. I then assigned a machine port 5820 and pointed it to the internal ip. I didn't have any luck with that. Any ideas where I have gone wrong? Do I have to use UltraVNC or will any VNC client work?

 

[JackMDS]

UltraVNC uses by default 5800 and 5900, once you assign another ports these ports are not relevant. I.e. once you assign to a computer port 5820 this port has to be open though the Router/Software Firewall (including WinXP native Firewall) pointing to the computer?s IP.

So you assign each computer's VNC Host a set of two independent ports (never repeat the same port).

The computers have to be on static IP, or IP reservation, and the specific ports that are assigned have to be open through the Router, and or any Software Firewall. If there is an application that blocking traffic make sure that it allows the VNC program to communicate in and out.

Install the software and test it first locally between LAN computers.

The instructions at the end of the page on http://www.ezlan.net/vnc.html are very explicit if it does not work it means you are forgetting to take something into consideration.

I use it on many systems and it works flawlessly.

If you need to control many computers you should look into adding a VNC Console as well.

http://www.vncscan.com

:sun:

 

[nweaver]

I do a port translation on my (linux) router. i.e. liveip:3389 goes to box1ip:3389, liveip:3390 goes to box2:3389, etc

 

[MBony]

Originally posted by: JackMDS
UltraVNC uses by default 5800 and 5900, once you assign another ports these ports are not relevant. I.e. once you assign to a computer port 5820 this port has to be open though the Router/Software Firewall (including WinXP native Firewall) pointing to the computer?s IP.

So you assign each computer's VNC Host a set of two independent ports (never repeat the same port).

The computers have to be on static IP, or IP reservation, and the specific ports that are assigned have to be open through the Router, and or any Software Firewall. If there is an application that blocking traffic make sure that it allows the VNC program to communicate in and out.

Install the software and test it first locally between LAN computers.

The instructions at the end of the page on http://www.ezlan.net/vnc.html are very explicit if it does not work it means you are forgetting to take something into consideration.

I use it on many systems and it works flawlessly.

If you need to control many computers you should look into adding a VNC Console as well.

http://www.vncscan.com

:sun:

Jack, thanks for the advice on the vnc console, I am looking into that.

As for the installation of ultravnc, I have installed it on 2 machines behind the router and can go from 1 machine to the other, so the problem is either in the router or in the modem. I have an ip starting with 216... I am not sure if that is a public ip, but I can ping it from outside the network so I assume it is. I used that tutorial from ezlan and read over it many times so I am stumped why it isn't working.

I went into services and created VNC1 and opened port 5500, then did VNC2 and opened port 5800, and VNC3 and opened port 5900. I also created VNCcom1 (computer 1) and opened port 5820.

I then when to rules and pointed that rule to the static ip of the pc that had opened port 5820 in the viewer box i typed 216.000.00.00:5820 and it just fails. Am I missing a step somewhere?

 

[JackMDS]

It would not work if you are trying to View it from the inside pf your LAN.

With most Entry Level Cable/DSL Routers you have to be really on the outside on the Internet through another connection and another Network.

I actually keep an inexpensive Dialup on one of my computers so that I can go on the Internet with the Dialup and try to connect to my system to test situation like this.

:sun:

 

[RebateMonger]

Originally posted by: JackMDS
It would not work if you are trying to View it from the inside pf your LAN.

Yup. Home routers will do a number on you when you try testing port forwarding from INSIDE your network. You have to test the result from the outside.

I, and others, no doubt, have wasted hours (or days) trying to test port forwarding from inside a LAN, only to find that it works perfectly from the outside.

It's one of those mistakes that you make only once (or twice, if you are a moron like me).

 

[ivwshane]

Originally posted by: MBony
I have 3 machines that I would like to have remote desktop access. The router used at this particular location is a Netgear FVS318. I have gone to ezlan.net and looked at UltraVNC, but can't get it to work. Is there another way to do this that doesn't involve GoToMyPc or Logmein?

What OS are you using?

 

[MBony]

Originally posted by: ivwshane

Originally posted by: MBony
I have 3 machines that I would like to have remote desktop access. The router used at this particular location is a Netgear FVS318. I have gone to ezlan.net and looked at UltraVNC, but can't get it to work. Is there another way to do this that doesn't involve GoToMyPc or Logmein?

What OS are you using?

XP Pro

 

[stimpyman77]

Mbony,

Check out the VNC repeater here and see if that fits your needs.

Stimpyman

 

[ivwshane]

Originally posted by: MBony

Originally posted by: ivwshane

Originally posted by: MBony
I have 3 machines that I would like to have remote desktop access. The router used at this particular location is a Netgear FVS318. I have gone to ezlan.net and looked at UltraVNC, but can't get it to work. Is there another way to do this that doesn't involve GoToMyPc or Logmein?

What OS are you using?

XP Pro

Why are you not using the built in remote desktop then? It's very easy to setup and secure.