Port Forwarding to 2 computers using Apple Remote Desktop ?

Now what happens if you take your home computer to your workplace and start using ARD?

In my case the remote address I use to access a computer quickly changes into the local address of that same computer!

When I get home again I have to change the address and ports back to the correct remote addresses/ports.

Very annoying although I only have 2 computers to manage.

Mark, how do you cope with that?

To me it looks like the procedure on http://portforward.com/english/routers/port_forwarding/Dlink/DSL-G604Tv2/default guide.htm should be followed.

Not 100% sure but try the described procedure and in stead of putting the same portnumber in "Port Map" use the "correct" portnumber.

So on the port forwarding - advanced page select the first computer (LAN IP drop down box) and make a rule for TCP/UDP with Port Start and Port End being 3284 and Port Map 3283

Make another one with Port Start and Port End being 5901 and Port Map 5900

Do the same for other computers connected to the router but use the next available port: Port Start and Port End being 3285 and Port Map 3283 - Port Start and Port End being 5902 and Port Map 5900

As explained by drtidmore "The ARD client does NOT allow the changing of the ports 5900/3283".

"The ARD client does NOT allow the changing of the ports 5900/3283" so the clients will always use the 5900/3283 pair.

So what you have to do to access multiple computers with ARD is using a different port pair for each computer.

Computer #1 5901/3284

Computer #2 5902/3285

Computer #3 5903/3286

and so on.

How to do this: use port forwarding in your router.

That is, tell the router to forward traffic for 5901/3284 to 5900/3283 to reachComputer #1

and traffic for 5902/3285 to 5900/3283 to reachComputer #2 and so on.

I don't know the router you are using but the setup shown on the 2 pics you posted on Dec 10, 2013 3:06 PM is not correct.

For example, you are forwarding traffic from port 3285 to port 3285

Instead you should forward traffic from 3285 to port 3283

Those entries should look like this for Computer #1:

Protocol Port start Port end Port map Port map end

TCP/UDP 3284 3284 3283 3283

TCP/UDP 5901 5901 5900 5900

For Computer #2:

Protocol Port start Port end Port map Port map end

TCP/UDP 3285 3285 3283 3283

TCP/UDP 5902 5902 5900 5900

For Computer #3:

Protocol Port start Port end Port map Port map end

TCP/UDP 3286 3286 3283 3283

TCP/UDP 5903 5903 5900 5900

Then you have to assign the rules to the respective computers.

The way to achieve this is to find the page in your router looking like this one: http://portforward.com/english/routers/port_forwarding/Dlink/DSL-G604Tv2/DSL-G60 4Tv24.jpg

There you select the LAN IP of Computer #1 and apply the forwarding rule you just created.

Do the same for the other computers.

474-8driver,

Many thanks, that's great info and I'm beginning to understand what's going on now.

The Mapping part was what I was missing.

Just a couple of quick questions if I may:

I'm using no-ip.com for my Dynamic Hosting rather than a Static IP here at home, so I'll be using my Ni-iP hostname to "find" my computers when I'm away - ie: mycomputer1.noip.com & mycomputer2.noip.com . . so:

1. Using the above Dynamic hostnames, what entries do I insert into ARD to find each of them?

2. Can I check access to both computers from inside my LAN (ie: from inside the same location as where the others are located - at home)?

3. How do I do that?

I'm guessing, my answers will be obvious: mycomputer1.noip.com:5901 (for example), but I'd like to confirm please.

Thanks so much.

In ARD you enter the no-ip address like st3v1e.no-ip.info

No need for different no-ip addresses as they all point to the same ip address.

The Remote Management Port/Screen Sharing Port numbers will be 3284/5901 or 3285/5902 and so on.

For access from within your home network there's normally no reason to change anything.

If that doesn't work you can enter the local address in stead of the no-ip address for local access.

More testing:

Using the following entries on my router:

Computer #1:

Protocol Port start Port end Port map Port map end

TCP/UDP 3284 3284 3283 3283

TCP/UDP 5901 5901 5900 5900

For Computer #2:

Protocol Port start Port end Port map Port map end

TCP/UDP 3285 3285 3283 3283

TCP/UDP 5902 5902 5900 5900

I'm now showing (I checked this previously but it definitely wasn't working):

Computer #1 - Ports 3284 / 5901 - open

Computer #2 - Ports 3285 / 5902 - open

So the questions is: If I "now" try to access my No-iP.com Dynamic Hostname from an external internet connection (WAN) using ARD, "should" I see each of my home machines - given that No-iP is still seeing only one IP address for my home router?

Thanx

If you have a regular home internet subscription you will have only 1 IP address.

st3v1e wrote:

mycomputer1.noip.com:3284

mycomputer1.noip.com:3283

mycomputer1.noip.com:5901

mycomputer1.noip.com:5900

??

In Remote Desktop you should use File - Add by Address

In the window that pops up you enter your no-ip address as address (without port numbers!), your username and password and under Advanced options the correct Remote Management Port/Screen Sharing Port numbers.

Like 3284/5901 or 3285/5902.

Computer #1 - Ports 3284 / 5901 - open

Computer #2 - Ports 3285 / 5902 - open

What do you mean by "open"?

Thanks for the info,

I'll give it a go shortly and get back to you both.

Cheers