Multiple Computers w/one IP and Custom Ports

Hi All,

I've searched a bit and think I found a solution...but can't quite get ARD to play nicely! I have a few computers behind our firewall I'd like to access while at home/away from the office. We have a static IP for the office, I've successfully opened ports and all that fun stuff - works great on one system. What I've seen folks recommend a few times is to make custom public ports that point to different internal IPs and private 5900 port for screen sharing/ARD. Basically my port forwarding looks like this:

computer 1 public port 1111 -> private for 5900 of 192.168.1.11

computer 2 public port 2222 -> private for 5900 of 192.168.1.22

Obviously those numbers are made up, but you get the idea. I can get this to work great with any VNC viewer - I can see/share/VNC into computer 1 just find using the following address: remotelogin.domain.com:1111 - works fine...but ARD won't let me put something like that in - I get a DNS error, etc.

Is there something I'm overlooking here or entering it in wrong? I do have other static IPs allowed to us, but not enough for all systems, so I'd like to figure it out this way if possible. I do have a custom DNS account that might help, but I can't put in port numbers there as well (for example: computer1.domain.com:1111 would go right to computer 1).

I am by no means a network/IT guy...just small business owner with enough knowledge to try dumb things like this...so forgive me if I'm doing it all wrong!

Thanks for any help anyone can offer!

(running ARD 3.8 on everything if that helps!)